WO2021246808A1 - 카메라 엑추에이터 및 이를 포함하는 카메라 모듈 - Google Patents
카메라 엑추에이터 및 이를 포함하는 카메라 모듈 Download PDFInfo
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- WO2021246808A1 WO2021246808A1 PCT/KR2021/006960 KR2021006960W WO2021246808A1 WO 2021246808 A1 WO2021246808 A1 WO 2021246808A1 KR 2021006960 W KR2021006960 W KR 2021006960W WO 2021246808 A1 WO2021246808 A1 WO 2021246808A1
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- disposed
- protrusion
- holder
- housing
- guide part
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/50—Constructional details
- H04N23/55—Optical parts specially adapted for electronic image sensors; Mounting thereof
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B13/00—Viewfinders; Focusing aids for cameras; Means for focusing for cameras; Autofocus systems for cameras
- G03B13/32—Means for focusing
- G03B13/34—Power focusing
- G03B13/36—Autofocus systems
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B3/00—Focusing arrangements of general interest for cameras, projectors or printers
- G03B3/10—Power-operated focusing
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B30/00—Camera modules comprising integrated lens units and imaging units, specially adapted for being embedded in other devices, e.g. mobile phones or vehicles
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B5/00—Adjustment of optical system relative to image or object surface other than for focusing
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
- H02K11/20—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection for measuring, monitoring, testing, protecting or switching
- H02K11/21—Devices for sensing speed or position, or actuated thereby
- H02K11/215—Magnetic effect devices, e.g. Hall-effect or magneto-resistive elements
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K41/00—Propulsion systems in which a rigid body is moved along a path due to dynamo-electric interaction between the body and a magnetic field travelling along the path
- H02K41/02—Linear motors; Sectional motors
- H02K41/035—DC motors; Unipolar motors
- H02K41/0352—Unipolar motors
- H02K41/0354—Lorentz force motors, e.g. voice coil motors
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/50—Constructional details
- H04N23/51—Housings
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/57—Mechanical or electrical details of cameras or camera modules specially adapted for being embedded in other devices
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/58—Means for changing the camera field of view without moving the camera body, e.g. nutating or panning of optics or image sensors
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/60—Control of cameras or camera modules
- H04N23/68—Control of cameras or camera modules for stable pick-up of the scene, e.g. compensating for camera body vibrations
- H04N23/682—Vibration or motion blur correction
- H04N23/685—Vibration or motion blur correction performed by mechanical compensation
- H04N23/687—Vibration or motion blur correction performed by mechanical compensation by shifting the lens or sensor position
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B2205/00—Adjustment of optical system relative to image or object surface other than for focusing
- G03B2205/0007—Movement of one or more optical elements for control of motion blur
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B2205/00—Adjustment of optical system relative to image or object surface other than for focusing
- G03B2205/0007—Movement of one or more optical elements for control of motion blur
- G03B2205/0023—Movement of one or more optical elements for control of motion blur by tilting or inclining one or more optical elements with respect to the optical axis
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B2205/00—Adjustment of optical system relative to image or object surface other than for focusing
- G03B2205/0046—Movement of one or more optical elements for zooming
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B2205/00—Adjustment of optical system relative to image or object surface other than for focusing
- G03B2205/0053—Driving means for the movement of one or more optical element
- G03B2205/0069—Driving means for the movement of one or more optical element using electromagnetic actuators, e.g. voice coils
Definitions
- the present invention relates to a camera actuator and a camera module including the same.
- a camera is a device that takes a picture or video of a subject, and is mounted on a portable device, a drone, a vehicle, or the like.
- the camera module has an image stabilization (IS) function that corrects or prevents image shake caused by user movement to improve image quality, and automatically adjusts the distance between the image sensor and the lens to align the focal length of the lens. It may have a zooming function that increases or decreases the magnification of a distant subject through an auto-focusing (AF) function and a zoom lens.
- IS image stabilization
- AF auto-focusing
- the resolution of the image sensor increases as the pixel becomes higher and the size of the pixel becomes smaller.
- the amount of light received for the same time decreases. Therefore, the higher the pixel camera, the more severe the image shake caused by hand shake that occurs when the shutter speed is slowed in a dark environment.
- ISO image stabilization
- OIS optical image stabilizer
- the movement of the camera is detected through a gyrosensor, etc., and the lens is tilted or moved based on the detected movement, or the camera module including the lens and the image sensor can be tilted or moved.
- the lens or a camera module including a lens and an image sensor is tilted or moved for OIS, it is necessary to additionally secure a space for tilting or moving around the lens or camera module.
- an actuator for OIS may be disposed around the lens.
- the actuator for OIS may include two axes perpendicular to the optical axis Z, that is, an actuator in charge of tilting the X-axis and an actuator in charge of tilting the Y-axis.
- a Hall sensor is used to detect the position and movement of the lens.
- the hall sensor is connected to the driver IC to obtain position information of the lens, and transmits the obtained position information to the driver IC.
- the driver IC and the Hall sensor were mounted on different substrates, but in recent years, the driver IC and the Hall sensor are being mounted on the same substrate to minimize noise reduction and volume.
- a plurality of pads are formed on the substrate, the pads are connected to the driver IC, and the hall sensor is connected to the driver IC. That is, when the driver IC and the Hall sensor are disposed on the same substrate, there is no pad directly connected to the Hall sensor on the substrate.
- the Hall sensor is mounted on the substrate through SMT (Surface Mount Technology) or the like. At this time, in the SMT process of the Hall sensor, a short-circuit defect of about 3% to 4% occurs.
- SMT Surface Mount Technology
- a test In order to confirm the mounting state of the Hall sensor, a test must be performed through a pad connected to the driver IC.
- the pad is connected to the Hall sensor through a driver IC instead of being directly connected to the Hall sensor, and thus there is a problem in that direct testing of the Hall sensor is impossible.
- the Hall sensor as described above is disposed together with the coil on the substrate. Specifically, the Hall sensor is disposed on the substrate in the inner region of the coil. And, the movement of the lens is made by electromagnetic force generated between the coil and the magnet. In this case, the electromagnetic force is affected by the separation distance between the coil and the magnet. In addition, the magnetic flux of the magnet detected by the hall sensor changes according to the separation distance between the hall sensor and the magnet, and thus the position sensing performance of the hall sensor is affected.
- the height of the coil must be ensured in order to secure thrust.
- the separation distance between the magnet and the hall sensor increases, and thus there is a problem in that the position sensing performance is deteriorated.
- the technical problem to be solved by the present invention is to provide a camera actuator that maintains a coupling between a mover and a housing by using a repulsive force between a first magnetic body and a second magnetic body, and a camera module including the same.
- an embodiment is to provide a camera actuator applicable to ultra-slim, ultra-compact and high-resolution cameras.
- the embodiment provides a camera actuator capable of testing the mounting state of the Hall sensor even when the driver IC and the Hall sensor are disposed on the same substrate, and a camera module including the same.
- the embodiment intends to provide a camera actuator capable of simultaneously increasing the sensitivity of the hall sensor while increasing thrust and a camera module including the same.
- a camera actuator includes a housing; a first member coupled to the housing; a mover including an optical member; a first magnetic body disposed on the first member; a second magnetic body disposed on the mover; and a tilting guide part for guiding the tilting of the mover, wherein the mover includes a holder coupled to the optical member and a second member coupled to the holder, and the tilting guide part includes the first magnetic body and the second member. 2
- the first member and the holder are closely adhered to each other by the repulsive force of the magnetic body.
- the first member may include a first through hole and a second through hole spaced apart from the first through hole
- the second member may include a member base; a first extension portion positioned at an edge of the member base portion and extending toward the holder; and a second extension spaced apart from the first extension and extending toward the mover.
- the first extension may pass through the first through hole, and the second extension may pass through the second through hole.
- the first member may include an upper member disposed above the first through hole and the second through hole; a lower member disposed under the first through hole and the second through hole; a connecting member connecting the upper member and the lower member; a first protrusion extending from one side of the upper member toward the holder; and a second protrusion extending from the other side of the upper member toward the holder, wherein the first extension and the second extension may be disposed between the upper member and the lower member.
- a camera actuator includes a housing; a first member coupled to the housing; a mover including a holder; a first magnetic body disposed on the first member; a second magnetic body disposed on the mover; and a tilting guide part disposed between the holder and the first member, wherein the mover includes a second member coupled to the holder, wherein a portion of the first member includes the second member and the holder
- the first surface of the first magnetic material and the second surface of the second magnetic material facing the first surface may have the same polarity.
- a center of the second magnetic body and a center of the second member may be disposed at different positions from each other.
- the center of the second magnetic body may be located above or below the center of the second member.
- An area of the second magnetic material may be greater than an area of the first magnetic material, and the first magnetic material may be positioned within a virtual straight line extending both ends of the second magnetic material in an optical axis direction.
- a camera actuator includes a housing; a first member coupled to the housing; a first magnetic body disposed on the first member; a second magnetic body corresponding to the first magnetic body; a second member on which the second magnetic body is disposed; a holder coupled to the second member; and a tilting guide part disposed between the holder and the first member, wherein a portion of the first member is disposed between the second member and the holder.
- the first magnetic material and the second magnetic material may face each other with the same polarity.
- a camera actuator includes a base; a guide part disposed inside the base; a lens assembly moving along the guide part; and a substrate disposed on the outside of the base, wherein the lens assembly includes a lens barrel on which a lens is disposed, and a mover on which a magnet is disposed, the substrate comprising: an insulating part; A coil unit disposed to face each other, a position detection sensor disposed on an inner region of the coil unit, and a test pad disposed on the insulating unit, wherein the test pad is directly connected to the position detection sensor through a connection wire .
- test pad is disposed to face the magnet with the coil unit interposed therebetween.
- the substrate includes a driver IC
- the position detection sensor includes a first terminal connected to the test pad and a second terminal connected to the driver IC.
- the insulating part may include an insulating layer on which the test pad and the connection wiring are disposed on one surface facing the magnet, and a first opening area on one surface of the insulating layer for exposing the test pad. and a second passivation layer including a second opening region exposing the first opening region on one surface of the first passivation layer.
- the coil unit is disposed on one surface of the second passivation layer to cover the first opening area and the second opening area.
- the outer side of the base is disposed to cover the first opening region of the first passivation layer and the second opening region of the second passivation layer.
- the second passivation layer includes a seating groove in which a region in which the coil unit is disposed is open, and the coil unit is disposed in the seating groove of the second passivation layer.
- the position detection sensor includes a plurality of Hall sensors arranged to be spaced apart from each other in the inner region of the coil unit.
- the guide part may include a first guide part disposed on a first inner side adjacent to a first sidewall of the base and a second guide part disposed on a second inner side adjacent a second sidewall of the base, and the lens assembly is, a first lens assembly including a first lens barrel on which a first lens is disposed, a first mover on which a first magnet is disposed, a second lens barrel on which a second lens is disposed, and a second magnet on which a second magnet is disposed a second mover, wherein the substrate includes a first substrate region disposed outside the first sidewall and a second substrate region disposed outside the second sidewall, wherein the coil unit and the test pad and the position detection sensor is disposed in the first substrate region and the second substrate region, respectively.
- the camera actuator includes a housing; an image shake control unit disposed in the housing; a mover disposed within the image shake control unit; and a tilting guide part disposed between the housing and the mover, wherein the mover includes a prism mover and a prism disposed on the prism mover, wherein the image shake control unit includes a substrate and a substrate facing the prism mover. a coil part disposed on one surface of the substrate, a position detection sensor disposed in an inner region of the coil part, and a magnet disposed on the prism mover facing the coil part, wherein the test pad includes the coil part It is disposed to face the magnet with interposed therebetween, and is directly connected to the position detection sensor through a connection wire.
- the substrate may include an insulating layer on which the test pad and the connection wiring are disposed on one surface facing the magnet, and a first opening area on one surface of the insulating layer for exposing the test pad.
- a second passivation layer including a layer and a second opening region exposing the first opening region on one surface of the first passivation layer, wherein the coil unit is disposed on one surface of the second passivation layer It is disposed to cover the opening region and the second opening region.
- the second passivation layer includes a seating groove in which a region in which the coil unit is disposed is open, and the coil unit is disposed in the seating groove of the second passivation layer.
- the camera module includes a first camera actuator; and a second camera actuator, wherein the first camera actuator performs an auto focusing or zoom function, and the second camera actuator performs an optical image stabilizer (OIS) function.
- first camera actuator performs an auto focusing or zoom function
- second camera actuator performs an optical image stabilizer (OIS) function.
- OIS optical image stabilizer
- the light incident on the camera module from the outside, the path of the light is changed by the second camera actuator is incident on the first camera actuator.
- the tilting guide portion is closely attached to the holder by the first and second magnetic materials generating a repulsive force, thereby realizing a camera actuator with improved coupling force.
- the actuator for OIS can be efficiently arranged without increasing the overall size of the camera module.
- the Hall sensor, the driver IC, and the coil unit are disposed on the first substrate.
- the first substrate in the embodiment includes a test pad directly connected to the Hall sensor. That is, in the embodiment, in a state in which the driver IC, the Hall sensor, and the coil unit are disposed on the same substrate, a separate test pad for testing the mounting state of the Hall sensor is formed on the first substrate. According to this, in the embodiment, it is possible to efficiently verify a mounting defect that may occur when the Hall sensor is mounted, and thus reliability can be improved.
- the test pad in the embodiment may be exposed to the outside on the first substrate.
- the test pad causes a reliability problem when in contact with other components.
- the exposed surface of the test pad may be covered by the coil unit.
- the exposed surface of the test pad may be covered by a sidewall of the base. According to this, in the embodiment, it is not necessary to form a separate protective layer to cover the exposed surface of the test pad, thereby simplifying the manufacturing process and reducing manufacturing cost. In addition, in the embodiment, it is possible to solve a design problem caused by the protective layer, and thus design freedom can be secured.
- the first substrate according to the embodiment includes a seating groove formed in a region where the coil unit is disposed.
- the seating groove is an open area of the coverlay constituting the first substrate. Accordingly, in the embodiment, the distance between the Hall sensor and the magnet may be reduced by the depth of the seating groove, thereby increasing the thrust of the driving unit and improving the sensitivity of the Hall sensor.
- tilting in the X-axis direction and tilting in the Y-axis direction do not cause magnetic field interference with each other, and tilting in the X-axis direction and tilting in the Y-axis direction can be implemented with a stable structure, and for AF or Even with the actuator for zooming, it does not cause magnetic field interference, so precise OIS function can be realized.
- FIG. 1 is a perspective view of a camera module according to an embodiment
- FIG. 2 is an exploded perspective view of a camera module according to an embodiment
- FIG. 3 is a cross-sectional view taken along line AA' in FIG. 1;
- FIG. 4 is a perspective view of a first camera actuator according to an embodiment
- FIG. 5 is an exploded perspective view of a first camera actuator according to an embodiment
- FIG. 6A is a perspective view of a first housing of a first camera actuator according to an embodiment
- Figure 6b is a perspective view in a different direction from Figure 6a
- 6C is a front view of a first housing of a first camera actuator according to an embodiment
- FIG. 7 is a perspective view of an optical member of a first camera actuator according to an embodiment
- FIG. 8A is a perspective view of a holder of a first camera actuator according to an embodiment
- FIG. 8B is a bottom view of the holder of the first camera actuator according to the embodiment.
- 8C is a front view of the holder of the first camera actuator according to the embodiment.
- 8D is a rear view of a second member of the first camera actuator according to the embodiment.
- 8E is a bottom view of a second member of the first camera actuator according to the embodiment.
- FIG. 9A is a perspective view of a tilting guide part of a first camera actuator according to an embodiment
- FIG. 9B is a perspective view in a different direction from FIG. 9A;
- 9C is a cross-sectional view taken along FF' in FIG. 9A;
- FIG. 10 is a view illustrating a first driving unit of a first camera actuator according to an embodiment
- 11A is a perspective view of a first camera actuator according to an embodiment
- 11B is a cross-sectional view taken from PP' in FIG. 11A;
- 11c is a cross-sectional view taken along QQ' in FIG. 11a;
- FIG. 12A is a perspective view of a first camera actuator according to an embodiment
- FIG. 12B is a cross-sectional view taken along SS' in FIG. 12A;
- FIG. 12C is an exemplary diagram of movement of the first camera actuator shown in FIG. 12B .
- FIG. 13A is a cross-sectional view taken along RR' in FIG. 12A;
- FIG. 13B is an exemplary view of the movement of the first camera actuator shown in FIG. 13A;
- FIG. 15 is a perspective view of a second camera actuator according to an embodiment
- FIG. 16 is an exploded perspective view of a second camera actuator according to the embodiment.
- 17 is a cross-sectional view taken along DD' in FIG. 15;
- FIG. 18 is a cross-sectional view taken along EE' in FIG. 15;
- 19 is a perspective view of a camera module according to another embodiment.
- 20A is a perspective view in which some components are omitted from the camera module of FIG. 19;
- FIG. 20B is an exploded perspective view of the camera module of FIG. 20A;
- 21 is a perspective view of a first camera actuator according to an embodiment
- FIG. 22 is a perspective view in which some components are omitted from the camera actuator according to the embodiment shown in FIG. 21;
- FIG. 23 is an exploded perspective view in which some components are omitted from the camera actuator according to the embodiment shown in FIG. 21;
- 25A is a perspective view of a first lens assembly in the camera actuator according to the embodiment shown in FIG. 23;
- 25B is a perspective view with some components removed from the first lens assembly shown in FIG. 25A;
- 26 is an exemplary view of driving in a camera actuator according to an embodiment
- 27A is a perspective view of the first substrate from which the first coil unit is removed according to the first embodiment as viewed from the first direction;
- 27B is a perspective view of the first substrate from which the first coil unit is removed according to the first embodiment, as viewed from the second direction;
- 27C is a perspective view illustrating a first substrate on which a first coil unit is disposed according to the first embodiment
- 28A is a cross-sectional view of a first substrate according to a first embodiment
- 28B is a plan view of the first substrate from which the first coil unit is removed according to the first embodiment
- 28C is a plan view of the first substrate on which the first coil unit is disposed according to the first embodiment
- 29A is a perspective view of the first substrate from which the first coil unit is removed according to the second embodiment as viewed from the first direction;
- 29B is a perspective view of the first substrate from which the first coil unit is removed according to the second embodiment as viewed from the second direction;
- 29c is a coupling view of the first substrate and the base according to the second embodiment
- 29D is a view showing the structure of the first substrate in a state in which the base is coupled according to the second embodiment
- FIG. 30A is a perspective view illustrating a first substrate on which a coil unit is disposed according to a third embodiment
- 30B is a perspective view showing the first substrate from which the coil unit is removed according to the third embodiment
- FIG. 30C is a cross-sectional view of a first substrate according to a third embodiment
- 31 is a view for comparing the separation distance between the hall sensor and the magnet of the embodiment and the comparative example
- FIG. 33 is a perspective view of the first driving unit in the camera actuator according to the embodiment.
- 34A is a perspective view of a second camera actuator of a camera module according to an embodiment
- 34B is an exploded perspective view of a second camera actuator according to an embodiment
- 35 to 38 are perspective views of each configuration of the second camera actuator
- 39 and 40 are views of a coupling relationship of a housing, a mover, and a moving protrusion in the second camera actuator;
- 41a and 41b are exemplary views of the operation of the second camera actuator according to the embodiment.
- 43 is a mobile terminal to which a camera module according to an embodiment is applied;
- FIG 44 is a perspective view of a vehicle to which a camera module according to an embodiment is applied.
- Terms including an ordinal number such as second, first, etc. may be used to describe various elements, but the elements are not limited by the terms. The terms are used only for the purpose of distinguishing one component from another.
- the second component may be referred to as the first component, and similarly, the first component may also be referred to as the second component. and/or includes a combination of a plurality of related listed items or any of a plurality of related listed items.
- FIG. 1 is a perspective view of a camera module according to an embodiment
- FIG. 2 is an exploded perspective view of a camera module according to the embodiment
- FIG. 3 is a cross-sectional view taken along line AA′ in FIG. 1 .
- the camera module 1000 may include a cover CV, a first camera actuator 1100 , a second camera actuator 1200 , and a circuit board 1300 .
- the first camera actuator 1100 may be used as a first actuator
- the second camera actuator 1200 may be used as a second actuator. It may also correspond to the first camera actuator and the second camera actuator described in another embodiment to be described later.
- the first camera actuator and the second camera actuator described with reference to FIGS. 19 to 42 may be replaced with the first camera actuator 1100 and the second camera actuator 1200 described with reference to FIGS. 1 to 18 , respectively.
- the cover CV may cover the first camera actuator 1100 and the second camera actuator 1200 .
- the coupling force between the first camera actuator 1100 and the second camera actuator 1200 may be improved by the cover CV.
- the cover CV may be made of a material that blocks electromagnetic waves. Accordingly, the first camera actuator 1100 and the second camera actuator 1200 in the cover CV can be easily protected.
- the first camera actuator 1100 may be an optical image stabilizer (OIS) actuator.
- OIS optical image stabilizer
- the first camera actuator 1100 may move the optical member in a direction perpendicular to the optical axis.
- the first camera actuator 1100 may include a lens disposed in a predetermined barrel (not shown).
- the lenses may include fixed focal length les. Fixed focal length lenses may also be referred to as “single focal length lenses” or “single focal length lenses”.
- the first camera actuator 1100 may change the path of the light.
- the first camera actuator 1100 may change the optical path vertically through an optical member (eg, a prism or a mirror) therein.
- an optical member eg, a prism or a mirror
- the present invention is not limited thereto, and the first camera actuator 1100 may change the optical path vertically or at a predetermined angle a plurality of times.
- the second camera actuator 1200 may be disposed at a rear end of the first camera actuator 1100 .
- the second camera actuator 1200 may be coupled to the first camera actuator 1100 . And the mutual coupling may be made by various methods.
- the second camera actuator 1200 may be a zoom actuator or an auto focus (AF) actuator.
- the second camera actuator 1200 may support one or a plurality of lenses and may perform an auto-focusing function or a zoom function by moving the lenses according to a control signal of a predetermined control unit.
- one or a plurality of lenses are moved independently or individually along the optical axis direction to
- the circuit board 1300 may be disposed behind the second camera actuator 1200 .
- the circuit board 1300 may be electrically connected to the second camera actuator 1200 and the first camera actuator 1100 . Also, there may be a plurality of circuit boards 1300 .
- the camera module according to the embodiment may be formed of a single or a plurality of camera modules.
- the plurality of camera modules may include a first camera module and a second camera module.
- the first camera module may include a single or a plurality of actuators.
- the first camera module may include a first camera actuator 1100 and a second camera actuator 1200 .
- the second camera module is disposed in a predetermined housing (not shown) and may include an actuator (not shown) capable of driving the lens unit.
- the actuator may be a voice coil motor, a micro actuator, a silicon actuator, etc., and may be applied in various ways, such as an electrostatic method, a thermal method, a bimorph method, an electrostatic force method, and the like, but is not limited thereto.
- the camera actuator may be referred to as an actuator or the like.
- a camera module including a plurality of camera modules may be mounted in various electronic devices such as a mobile terminal.
- the camera module may include a first camera actuator 1100 performing an OIS function and a second camera actuator 1200 performing a zooming function and AF function.
- Light may be incident into the camera module or the first camera actuator through an opening area located on the upper surface of the first camera actuator 1100 . That is, the light may be incident into the interior of the first camera actuator 1100 along the optical axis direction (eg, the X-axis direction), and the optical path may be changed in the vertical direction (eg, the Z-axis direction) through the optical member. In addition, the light may pass through the second camera actuator 1200 and be incident to the image sensor IS located at one end of the second camera actuator 1200 (PATH).
- the optical axis direction eg, the X-axis direction
- the optical path may be changed in the vertical direction (eg, the Z-axis direction) through the optical member.
- the light may pass through the second camera actuator 1200 and be incident to the image sensor IS located at one end of the second camera actuator 1200 (PATH).
- the bottom means one side in the first direction.
- the first direction is the X-axis direction in the drawing, and may be used interchangeably with the second axis direction.
- the second direction is the Y-axis direction in the drawing, and may be used interchangeably with the first axis direction.
- the second direction is a direction perpendicular to the first direction.
- the third direction is the Z-axis direction in the drawing, and may be used interchangeably with the third axis direction. And the third direction is a direction perpendicular to both the first direction and the second direction.
- the third direction (Z-axis direction) corresponds to the direction of the optical axis
- the first direction (X-axis direction) and the second direction (Y-axis direction) are directions perpendicular to the optical axis and are to be tilted by the second camera actuator.
- the horizontal direction may mean first and second directions
- the vertical direction may mean a direction perpendicular to at least one of the first and second directions.
- the horizontal direction may mean the x-axis and y-axis directions of the drawing
- the vertical direction may be a z-axis direction of the drawing and a direction perpendicular to the x-axis and y-axis directions.
- the optical axis direction is the third direction (Z axis direction), and will be described below based on this.
- the inner side may be a direction from the cover (CV) toward the first camera actuator, and the outer side may be the opposite direction of the inner side. That is, the first camera actuator and the second camera actuator may be located inside the cover CV, and the cover CV may be located outside the first camera actuator or the second camera actuator.
- the camera module according to the embodiment may improve the spatial limitation of the first camera actuator and the second camera actuator by changing the path of light. That is, the camera module according to the embodiment may extend the optical path while minimizing the thickness of the camera module in response to the change in the path of the light. Furthermore, it should be understood that the second camera actuator may provide a high range of magnification by controlling a focus or the like in the extended optical path.
- the camera module according to the embodiment can implement OIS through control of the optical path through the first camera actuator, thereby minimizing the occurrence of a decent or tilt phenomenon, and providing the best optical characteristics. can pay
- the second camera actuator 1200 may include an optical system and a lens driver.
- a lens driver for example, at least one of a first lens assembly, a second lens assembly, a third lens assembly, and a guide pin may be disposed.
- the second camera actuator 1200 may include a coil and a magnet to perform a high-magnification zooming function.
- the first lens assembly and the second lens assembly may be a moving lens that moves through a coil, a magnet, and a guide pin
- the third lens assembly may be a fixed lens, but is not limited thereto.
- the third lens assembly may function as a concentrator to image light at a specific position, and the first lens assembly may re-image an image formed by the third lens assembly, which is a concentrator, to another location. It can perform the function of a variable (variator).
- the magnification change may be large because the distance to the subject or the image distance changes a lot, and the first lens assembly as the variable magnification may play an important role in changing the focal length or magnification of the optical system.
- the image formed in the first lens assembly which is a variable changer
- the second lens assembly may perform a position compensation function for the image formed by the variable magnifier.
- the second lens assembly may perform a compensator function that accurately forms an image formed by the first lens assembly, which is a variable changer, at an actual image sensor position.
- the first lens assembly and the second lens assembly may be driven by electromagnetic force due to an interaction between a coil and a magnet. The above may be applied to a lens assembly to be described later.
- the first to third lens assemblies may move along the optical axis direction, that is, the third direction.
- the first to third lens assemblies may move in the third direction independently or depending on each other.
- the actuator for OIS and the actuator for AF or zoom are disposed according to an embodiment of the present invention
- magnetic field interference with the magnet for AF or zoom can be prevented when OIS is driven. Since the first driving magnet of the first camera actuator 1100 is disposed separately from the second camera actuator 1200, magnetic field interference between the first camera actuator 1100 and the second camera actuator 1200 can be prevented.
- OIS may be used interchangeably with terms such as hand shake correction, optical image stabilization, optical image correction, and image stabilization.
- FIG. 4 is a perspective view of a first camera actuator according to an embodiment
- FIG. 5 is an exploded perspective view of the first camera actuator according to an embodiment.
- the first camera actuator 1100 includes a first housing 1120 , a mover 1130 , a rotation unit 1140 , a first driving unit 1150 , and a first member 1126 . ) and a second member 1131a.
- the mover 1130 may include a holder 1131 and an optical member 1132 seated on the holder 1131 .
- the rotating part 1140 may include the tilting guide part 1141 and the second magnetic body 1142 and the first magnetic body 1143 having different polarities to press the tilting guide part 1141 .
- the first driving unit 1150 includes a driving magnet 1151 , a driving coil 1152 , a Hall sensor unit 1153 , a first substrate unit 1154 , and a yoke unit 1155 .
- the first camera actuator 1100 may include a shield can (not shown).
- the shield can (not shown) may be positioned at the outermost side of the first camera actuator 1100 to surround the rotating part 1140 and the first driving part 1150 to be described later.
- Such a shield can may block or reduce electromagnetic waves generated from the outside. That is, the shield can (not shown) may reduce the occurrence of a malfunction in the rotating unit 1140 or the first driving unit 1150 .
- the first housing 1120 may be located inside a shield can (not shown). When there is no shield can, the first housing 1120 may be located at the outermost side of the first camera actuator.
- first housing 1120 may be located inside the first substrate unit 1154 to be described later.
- the first housing 1120 may be coupled to or fitted to a shield can (not shown).
- the first housing 1120 may include a first housing side 1121 , a second housing side 1122 , a third housing side 1123 , and a fourth housing side 1124 . A detailed description thereof will be given later.
- the first member 1126 may be disposed in the first housing 1120 .
- the first member 1126 may be disposed between the second member 1131a and the housing.
- the first member 1126 may be disposed or included within the housing.
- the first member 1126 may be coupled to the holder 1131 by the second member 1131a.
- the first member 1126 may be penetrated by the second member 1131a , and the second member 1131a may be coupled to the holder 1131 . Accordingly, at least a portion of the first member 1126 may be positioned between the second member 1131a and the holder 1131 . This will be described later.
- the mover 1130 includes a holder 1131 and an optical member 1132 seated on the holder 1131 .
- the holder 1131 may be seated in the receiving part 1125 of the first housing 1120 .
- the holder 1131 has a first holder outer surface to a fourth holder outer surface corresponding to the first housing side 1121 , the second housing side 1122 , the third housing side 1123 , and the first member 1126 , respectively.
- the first holder outer surface to the fourth holder outer surface may correspond to inner surfaces of the first housing side 1121 , the second housing side 1122 , the third housing side 1123 , and the first member 1126 , respectively. or can be faced with.
- the holder 1131 may include a second member 1131a disposed in the fourth seating groove. A detailed description thereof will be given later.
- the optical member 1132 may be seated on the holder 1131 .
- the holder 1131 may have a seating surface, and the seating surface may be formed by a receiving groove.
- the optical member 1132 may be formed of a mirror or a prism.
- a prism is shown as a reference, but as in the above-described embodiment, a plurality of lenses may be used.
- the optical member 1132 may include a plurality of lenses and prisms or mirrors.
- the optical member 1132 may include a reflector disposed therein.
- the present invention is not limited thereto.
- the optical member 1132 may reflect light reflected from the outside (eg, an object) into the camera module.
- the optical member 1132 may improve the spatial limit of the first camera actuator and the second camera actuator by changing the path of the reflected light.
- the camera module may extend the optical path while minimizing thickness to provide a high range of magnification.
- the second member 1131a may be coupled to the holder 1131 .
- the second member 1131a may be disposed outside the holder 1131 and inside the housing.
- the second member 1131a may be seated in an additional groove located in an area other than the fourth seating groove on the outer surface of the fourth holder in the holder 1131 .
- the second member 1131a may be coupled to the holder 1131 , and at least a portion of the first member 1126 may be positioned between the second member 1131a and the holder 1131 .
- at least a portion of the first member 1126 may pass through a space formed between the second member 1131a and the holder 1131 .
- the second member 1231a may have a structure separated from the holder 1131 . With this configuration, as will be described later, the assembly of the first camera actuator can be easily performed.
- the second member 1131a may be integrally formed with the holder 1131 , but a separate structure will be described below.
- the rotating part 1140 includes a tilting guide part 1141 and a second magnetic body 1142 and a first magnetic body 1143 having different polarities to press the tilting guide part 1141 .
- the tilting guide unit 1141 may be coupled to the above-described mover 1130 and the first housing 1120 . Specifically, the tilting guide unit 1141 may be disposed between the holder 1131 and the first member 1126 . Accordingly, the tilting guide unit 1141 may be coupled to the mover 1130 and the first housing 1120 of the holder 1131 . However, unlike the above description, in the present embodiment, the tilting guide unit 1141 may be disposed between the first member 1126 and the holder 1131 . Specifically, the tilting guide part 1141 may be positioned between the first member 1126 and the fourth seating groove of the holder 1131 .
- the second member 1131a , the first member 1126 , the tilting guide part 1141 , and the holder 1131 may be disposed in this order.
- the second magnetic body 1142 and the first magnetic body 1143 may be seated in the first groove gr1 formed in the second member 1131a and the second groove gr2 formed in the first member 1126 , respectively. have.
- the first groove gr1 and the second groove gr2 may have different positions from the first and second grooves described in the other embodiments described above.
- the first groove gr1 is located in the second member 1131a and moves integrally with the holder
- the second groove gr2 is located on the first member 1126 corresponding to the first groove gr1 . to be coupled to the first housing 1120 . Accordingly, the present terms will be used interchangeably.
- the tilting guide unit 1141 may be disposed adjacent to the optical axis. Accordingly, the actuator according to the embodiment can easily change the optical path according to the first and second axis tilt to be described later.
- the tilting guide part 1141 may include a first protrusion spaced apart in a first direction (X-axis direction) and a second protrusion spaced apart in a second direction (Y-axis direction). Also, the first protrusion and the second protrusion may protrude in opposite directions. A detailed description thereof will be given later.
- the second magnetic body 1142 may be located in the second member 1131a.
- the first magnetic body 1143 may be located in the first member 1126 .
- the second magnetic body 1142 and the first magnetic body 1143 may have the same polarity.
- the second magnetic body 1142 may be a magnet having an N pole
- the first magnetic body 1143 may be a magnet having an N pole.
- the second magnetic body 1142 may be a magnet having an S pole
- the first magnetic body 1143 may be a magnet having an S pole.
- first pole surface of the first magnetic material 1143 and the second pole surface of the second magnetic material 1142 facing the first pole surface may have the same polarity.
- the second magnetic body 1142 and the first magnetic body 1143 may generate a repulsive force between each other due to the above-described polarity.
- the above-described repulsive force is coupled to the second member 1131a or the holder 1131 and the first magnetic body 1143 coupled to the second magnetic body 1142.
- the first member 1126 or the first housing ( 1120) can be added.
- the repulsive force applied to the second member 1131a may be transmitted to the holder 1131 coupled to the second member 1131a. Accordingly, the tilting guide part 1141 disposed between the second member 1131a and the first member 1126 may be pressed by the repulsive force.
- the repulsive force may maintain the tilting guide unit 1141 positioned between the holder 1131 and the first housing 1120 (or the first member 1126 ).
- the position between the mover 1130 and the first housing 1120 may be maintained even during the X-axis tilt or the Y-axis tilt.
- the tilting guide part may be in close contact with the first member 1126 and the holder 1131 by a repulsive force between the first magnetic body 1143 and the second magnetic body 1142 .
- the first driving unit 1150 includes a driving magnet 1151 , a driving coil 1152 , a Hall sensor unit 1153 , a first substrate unit 1154 , and a yoke unit 1155 . Details on this will be described later.
- FIG. 6A is a perspective view of a first housing of the first camera actuator according to the embodiment
- FIG. 6B is a perspective view different from that of FIG. 6A
- FIG. 6C is a front view of the first housing of the first camera actuator according to the embodiment.
- the first housing 1120 may include a first housing side portion 1121 to a fourth housing side portion 1124 .
- the first member 1126 may be integrated with the first housing 1120 .
- the first member 1126 may be included in the first housing 1120 . That is, the first housing 1120 may be integrally formed by being coupled to the first member 1126 .
- the first housing 1120 may include a first member 1126 .
- the first housing side 1121 and the second housing side 1122 may be disposed to face each other. Also, the third housing side portion 1123 and the fourth housing side portion 1124 may be disposed to face each other.
- third housing side 1123 and the fourth housing side 1124 may be disposed between the first housing side 1121 and the second housing side 1122 .
- the third housing side 1123 and the fourth housing side 1124 may abut the first housing side 1121 , the second housing side 1122 , and the fourth housing side 1124 .
- the third housing side 1123 may be a bottom surface of the first housing 1120 .
- the fourth housing side 1124 may be an upper surface of the first housing 1120 .
- the description of the direction may be applied in the same manner as described above.
- first housing side 1121 may include a first housing hole 1121a.
- a first coil to be described later may be positioned in the first housing hole 1121a.
- the second housing side 1122 may include a second housing hole 1122a.
- a second coil 1152b to be described later may be positioned in the second housing hole 1122a.
- first housing side 1121 and the second housing side 1122 may be side surfaces of the first housing 1120 .
- the first coil and the second coil may be coupled to the first substrate unit.
- the first coil and the second coil may be electrically connected to the first substrate part so that a current may flow.
- This current is a component of electromagnetic force that allows the second camera actuator to tilt with respect to the X-axis.
- the third housing side portion 1123 may include a third housing hole 1123a.
- a third coil to be described later may be positioned in the third housing hole 1123a.
- the third coil 1152c may be electrically connected to the first substrate unit in contact with the first housing 1120 and may be coupled to each other. Accordingly, the third coil may be electrically connected to the first substrate unit to receive current from the first substrate unit. This current is a component of electromagnetic force that allows the second camera actuator to tilt with respect to the Y-axis.
- a first member 1126 may be seated between the first housing side portion 1121 to the fourth housing side portion 1124 . Accordingly, the first member 1126 may be positioned on the third housing side portion 1123 . For example, the first member 1126 may be located on one side. Based on the third direction, the first member 1126 and the holder may be sequentially positioned.
- the fourth housing side 1124 is disposed between the first housing side 1121 , the second housing side 1122 , the first housing side 1121 , the second housing side 1122 , and the third housing side 1123 . ) can be encountered.
- the fourth housing side 1124 may include a fourth housing hole 1124a.
- the fourth housing hole 1124a may be located above the optical member. Accordingly, light may pass through the fourth housing hole 1124a and be incident on the optical member.
- the first housing 1120 may include a receiving portion 1125 formed by the first housing side portion 1121 to the fourth housing side portion 1124 .
- a first member 1126 , a second member 1131a , and a mover 1130 may be positioned in the receiving part 1125 as components.
- the first housing 1120 may further include a fifth housing side facing the first member 1126 . and a fifth housing side is disposed between the first housing side 1121 and the second housing side 1122 , the first housing side 1121 , the second housing side 1122 and the third housing side 1123 and can be reached
- the fifth housing side may include an opening region to provide a path through which light reflected from the optical member 1132 travels.
- the fifth housing side may include protrusions or grooves, etc., to provide easy engagement with other adjacent camera actuators. With this configuration, it is possible to minimize the change of the optical path by suppressing movement of the opening due to separation or the like by improving the coupling force between the side of the fifth housing where the opening providing the optical path is formed and other components while providing the optical path. .
- the first member 1126 may be coupled to the first housing 1120 to be included in the first housing 1120 . That is, the first housing 1120 may include the first member 1126 .
- first member 1126 may be disposed in the first housing 1120 .
- first member 1126 may be located in the first housing 1120 .
- first member 1126 may be coupled to the first housing 1120 .
- first member 1126 may be positioned between the first housing side 1121 and the second housing side 1122 .
- first member 1126 may be positioned between the third housing side 1123 and the fourth housing side 1124 .
- first member 1126 is positioned on the third housing side portion 1123 and may be joined to the first housing side portion 1121 to the third housing side portion 1123 .
- a first stopper 1121b may be positioned on the inner surface of the first housing side portion 1121 .
- a second stopper 1122b may be positioned on the inner surface of the second housing side 1122 .
- the first stopper 1121b and the second stopper 1122b may be positioned symmetrically with respect to the first direction (X-axis direction).
- the first stopper 1121b and the second stopper 1122b may extend in a first direction (X-axis direction). With this configuration, even when the first member 1126 moves into the first housing 1120 , the position may be maintained by the first stopper 1121b and the second stopper 1122b. In other words, the first stopper 1121b and the second stopper 1122b may maintain the first member 1126 positioned on one side of the first housing 1120 .
- the first stopper 1121b and the second stopper 1122b fix the position of the first member 1126 to fix the position of the tilting guide part between the first member 1126 and the mover to cause errors such as vibration. can be removed. Accordingly, in the first camera actuator according to the embodiment, the X-axis tilt and the Y-axis tilt may be accurately performed.
- the separation distance L2 in the second direction (Y-axis direction) between the first stopper 1121b and the second stopper 1122b is the maximum length in the second direction (Y-axis direction) of the first member 1126 ( It may be smaller than L1). Accordingly, the first member 1126 may be assembled or inserted laterally with respect to the first housing 1120 to be coupled to the first housing 1120 .
- the first member 1126 includes a second protrusion groove PH2 in which the second protrusion of the tilting guide part is seated.
- the second protrusion groove PH2 may be located on the inner surface 1126s1 of the first member 1126 . Accordingly, in the first member 1126 , the protrusion (eg, the second protrusion) of the tilting guide is disposed adjacent to the prism in the fourth seating groove, so that the protrusion, which is the reference axis of tilt, is close to the center of gravity of the mover 1130 . to be placed Accordingly, when the holder tilts, the moment of moving the mover 1130 for tilting can be minimized. Accordingly, since current consumption for driving the coil is also minimized, power consumption of the camera actuator may be reduced.
- the first member 1126 may include through holes 1126a and 1126b.
- a plurality of through-holes may be formed of a first through-hole 1126a and a second through-hole 1126b.
- the first and second extension portions of the second member to be described later may pass through the first through hole 1126a and the second through hole 1126b, respectively. Through this, the second member and the first member may be coupled. In other words, the first housing and the mover may be coupled to each other.
- a second protrusion groove PH2 may be positioned between the first through hole 1126a and the second through hole 1126b. Due to this configuration, the coupling force between the tilting guide unit 1141 and the first member 1126 is improved, so that a decrease in tilt accuracy caused by the tilting guide unit 1141 moving within the first housing can be blocked.
- a second groove gr2 may be positioned on the outer surface 1126s2 of the first member 1126 .
- a first magnetic body may be seated in the second groove gr2 .
- the outer surface 1126s2 of the first member 1126 may face the inner surface of the second member or the member base portion.
- the second magnetic body seated on the second member and the first magnetic body of the first member 1126 may face each other and generate the above-described repulsive force. Accordingly, since the first member 1126 presses the tilting guide part inward or the holder by the repulsive force, the mover may be spaced apart from the third housing side by a predetermined distance in the first housing even if there is no current injection into the coil. Furthermore, the tilting guide part disposed between the holder and the housing (eg, the first member) may be pressed by the holder and the lowering. In other words, the coupling force between the mover and the housing and the tilting guide unit may be maintained.
- the coupling force between the first member 1126 and the first housing 1120 may be improved, so that reliability of the camera actuator may be improved.
- the easiness of assembling and manufacturing may be improved.
- the first member 1126 may include the first through-hole 1126a and the second through-hole 1126b as described above.
- the first through-hole 1126a and the second through-hole 1126b may be disposed side by side in the second direction (Y-axis direction) to overlap each other.
- the first member 1126 is the upper member UA positioned above the first through-hole 1126a and the second through-hole 1126b, and the lower portion of the first through-hole 1126a and the second through-hole 1126b. It may include a lower member (BA) located in the. Accordingly, the first through-hole 1126a and the second through-hole 1126b may be located in the middle of the first member 1126 . That is, the first member 1126 may include the connecting member MA located on the side of the first through hole 1126a and the second through hole 1126b. That is, the upper member UA and the lower member BA may be connected to each other through the connecting member MA.
- a plurality of lower members BA may be provided to form the first and second through-holes, and may be disposed to be spaced apart from each other in the second direction (Y-axis direction).
- the rigidity of the first member 1126 may be improved by having the upper member UA.
- the rigidity of the first member 1126 may be increased.
- the unit may be N/ ⁇ m. Accordingly, the reliability of the first camera actuator according to the embodiment may be improved.
- a first coupling groove 1126k may be positioned on the outer surface 1126s2 of the first member 1126 .
- the first coupling groove 1126k may be located at an edge of the outer surface 1126s2 of the first member 1126 .
- the first coupling groove 1126k may be located at an end (eg, left and right sides) of the outer surface 1126s2 of the first member 1126 to be adjacent to the first housing side portion 1121 .
- the first coupling groove 1126k may be positioned to correspond to the second coupling grooves 1121m and 1122m of the first housing side portion 1121 and the second housing side portion 1122 .
- the first coupling groove 1126k may be positioned to face the second coupling grooves 1121m and 1122m of the first housing side portion 1121 and the second housing side portion 1122 .
- the second coupling grooves 1121m and 1122m may be adjacent to the outer surface 1126S2 of the above-described first member 1126 and located on the same side surface.
- first coupling groove 1126k and the second coupling grooves 1121m and 1122m may be plural, and the plurality of first coupling grooves 1126k and the second coupling grooves 1121m and 1122m are in the first direction. Alternatively, it may be positioned symmetrically in the second direction.
- a coupling member may be applied to the first coupling groove 1126k and the second coupling groove 1121m and 1122m. That is, the bonding member may be applied between the first housing side (or the second housing side) and the first member 1126 to improve the bonding force between the housing 1120 and the first member 1126 .
- a bonding member may include, for example, epoxy, but is not limited to these materials.
- the first member 1126 may further include a first protrusion and a second protrusion.
- the first protrusion may contact the first housing side, and the second protrusion may contact the second housing side.
- the first protrusion may extend in the third direction (Z-axis direction) from one end of the outer surface 1126S2 of the first member.
- the second protrusion may extend in the third direction (Z-axis direction) from the other end of the outer surface 1126S2 of the first member. That is, the first protrusion and the second protrusion may extend toward the holder.
- the position of the first protrusion may be maintained by the first stopper 1121b, and the position of the second protrusion may be maintained by the second stopper 1122b. Accordingly, reliability of the camera actuator according to the embodiment may be improved.
- FIG. 7 is a perspective view of an optical member of a first camera actuator according to an embodiment.
- the optical member 1132 may be seated on the holder.
- the optical member 1132 may be a right-angle prism as a reflection unit, but is not limited thereto.
- the optical member 1132 may have a protrusion (not shown) on a portion of the outer surface.
- the optical member 1132 may be easily coupled to the holder through a protrusion (not shown).
- the holder since the holder has a groove or a protrusion, it may be coupled to the optical member 1132 .
- the optical member 1132 may have a bottom surface 1132b mounted on a seating surface of the holder. Accordingly, the bottom surface 1132b of the optical member 1132 may correspond to the seating surface of the holder. In an embodiment, the bottom surface 1132b may be formed of an inclined surface identical to the seating of the holder. Accordingly, it is possible to prevent the optical member 1132 from being separated from the holder according to the movement of the prism and the movement of the holder.
- a groove is formed on the bottom surface 1132b of the optical member 1132 and a bonding member is applied, so that the optical member 1132 can be coupled to the holder.
- the holder may be coupled to the optical member 1132 by applying a bonding member to the groove or protrusion of the holder.
- the optical member 1132 may have a structure capable of reflecting light reflected from the outside (eg, an object) into the camera module.
- the optical member 1132 may be formed of a single mirror.
- the optical member 1132 may improve the spatial limitation of the first camera actuator and the second camera actuator by changing the path of the reflected light.
- the camera module may extend the optical path while minimizing thickness to provide a high range of magnification.
- the camera module including the camera actuator according to the embodiment may provide a high range of magnification by extending the optical path while minimizing the thickness.
- FIG. 8A is a perspective view of the holder of the first camera actuator according to the embodiment
- FIG. 8B is a bottom view of the holder of the first camera actuator according to the embodiment
- FIG. 8C is a front view of the holder of the first camera actuator according to the embodiment 8D is a rear view of the second member of the first camera actuator according to the embodiment
- FIG. 8E is a bottom view of the second member of the first camera actuator according to the embodiment.
- the holder 1131 may include a seating surface 1131k on which the optical member 1132 is mounted.
- the seating surface 1131k may be an inclined surface.
- the holder 1131 may include a chin on the seating surface 1131k, and in the holder 1131 , the chin may be coupled to a protrusion (not shown) of the optical member 1132 .
- the holder 1131 may include a plurality of outer surfaces.
- the holder 1131 may include a first holder outer surface 1131S1 , a second holder outer surface 1131S2 , a third holder outer surface 1131S3 , and a fourth holder outer surface 1131S4 .
- the first holder outer surface 1131S1 may be positioned to face the second holder outer surface 1131S2 . That is, the first holder outer surface 1131S1 may be symmetrically disposed with respect to the second holder outer surface 1131S2 and the first direction (X-axis direction).
- the first holder outer surface 1131S1 may be positioned to correspond to the side of the first housing. That is, the first holder outer surface 1131S1 may be positioned to face the side of the first housing.
- the second holder outer surface 1131S2 may be positioned to correspond to the second housing side. That is, the second holder outer surface 1131S2 may be positioned to face the second housing side.
- first holder outer surface 1131S1 may include a first seating groove 1131S1a.
- second holder outer surface 1131S2 may include a second seating groove 1131S2a.
- the first seating groove 1131S1a and the second seating groove 1131S2a may be symmetrically disposed with respect to the first direction (X-axis direction).
- first seating groove 1131S1a and the second seating groove 1131S2a may be disposed to overlap in the second direction (Y-axis direction).
- a first magnet 1151a may be disposed in the first seating groove 1131S1a
- a second magnet 1151b may be disposed in the second seating groove 1131S2a.
- the first magnet 1151a and the second magnet 1151b may also be disposed symmetrically with respect to the first direction (X-axis direction).
- the first to third magnets may be coupled to the housing through a yoke or a bonding member.
- the electromagnetic force induced by each magnet is coaxial to the first holder outer surface S1231S1 and the second holder outer surface 1131S2.
- the region eg, the portion having the strongest electromagnetic force
- the region applied on the first holder outer surface S1231S1 and the region applied on the second holder outer surface S1231S1 are It may be located on an axis parallel to the second direction (Y-axis direction). Thereby, the X-axis tilting can be made accurately.
- a first magnet 1151a may be disposed in the first seating groove 1131S1a, and a second magnet 1151b may be disposed in the second seating groove 1131S2a.
- the third holder outer surface 1131S3 is in contact with the first holder outer surface 1131S1 and the second holder outer surface 1131S2, and from one side of the first holder outer surface 1131S1 and the second holder outer surface 1131S2 It may be an outer surface extending in two directions (Y-axis direction). Also, the third holder outer surface 1131S3 may be positioned between the first holder outer surface 1131S1 and the second holder outer surface 1131S2 . The third holder outer surface 1131S3 may be a bottom surface of the holder 1131 . That is, the third holder outer surface 1131S3 may be positioned to face the third housing side.
- the third holder outer surface 1131S3 may include a third seating groove 1131S3a.
- a third magnet 1151c may be disposed in the third seating groove 1131S3a.
- the third holder outer surface 1131S3 may be positioned to face the third housing side portion 1123 .
- the third housing hole 1123a may at least partially overlap the third seating groove 1131S3a in the first direction (X-axis direction). Accordingly, the third magnet 1151c in the third seating groove 1131S3a and the third coil 1152c in the third housing hole 1123a may be positioned to face each other. In addition, the third magnet 1151c and the third coil 1152c generate electromagnetic force so that the second camera actuator can tilt the Y-axis.
- the Y-axis tilt can be performed only by the third magnet 1151c.
- the third seating groove 1131S3a may have a larger width than the first seating groove 1131S1a or the second seating groove 1131S2a.
- the fourth holder outer surface 1131S4 is in contact with the first holder outer surface 1131S1 and the second holder outer surface 1131S2, and in the first direction from the first holder outer surface 1131S1 and the second holder outer surface 1131S2 It may be an outer surface extending in the (X-axis direction). Also, the fourth holder outer surface 1131S4 may be positioned between the first holder outer surface 1131S1 and the second holder outer surface 1131S2 . That is, the fourth holder outer surface 1131S4 may be positioned to face the first member.
- the fourth holder outer surface 1131S4 may include a fourth seating groove 1131S4a.
- a tilting guide part 1141 may be positioned in the fourth seating groove 1131S4a.
- the second member 1131a and the first member 1126 may be positioned in the fourth seating groove 1131S4a.
- the fourth seating groove 1131S4a may include a plurality of regions. It may include a first area AR1 , a second area AR2 , and a third area AR3 .
- a second member 1131a may be positioned in the first area AR1 . That is, the first area AR1 may overlap the second member 1131a in the first direction (X-axis direction).
- the first area AR1 may be an area in which the member base portion of the second member 1131a is located.
- the first area AR1 may be located on the fourth holder outer surface 1131S4 . That is, the first area AR1 may correspond to an area located above the fourth seating groove 1131S4a. In this case, the first area AR1 may not be an area within the fourth seating groove 1131S4a.
- a first member 1126 may be positioned in the second area AR2 . That is, the second area AR2 may overlap the first member 1126 in the first direction (X-axis direction).
- the second area AR2 may be located on the fourth holder outer surface 1131S4 like the first area. That is, the second area AR2 may correspond to an area located above the fourth seating groove 1131S4a.
- a tilting guide unit may be positioned in the third area AR3 .
- the base of the tilting guide part may be positioned in the third area AR3 . That is, the third area AR3 may overlap the tilting guide part (eg, the base) in the first direction (X-axis direction).
- the second area AR2 may be positioned between the first area AR1 and the third area AR3 .
- a second member may be disposed in the first area AR1 , and the second member 1131a may include a first groove gr1 .
- the second member 1131a may include a first groove gr1 formed in the inner surface 1131aas.
- the second magnetic material may be disposed in the first groove gr1 as described above.
- the first member may be disposed in the second area AR2 .
- the first groove gr1 may be positioned to face the second groove gr2 .
- the first groove gr1 may at least partially overlap the second groove gr2 in the third direction (Z-axis direction).
- the repulsive force generated by the second magnetic body may be transmitted to the fourth seating groove 1131S4a of the holder 1131 through the second member. Accordingly, the holder may apply a force to the tilting guide unit in the same direction as the repulsive force generated by the second magnetic body.
- the first member may include a second groove gr2 facing the first groove gr1 formed on the outer surface.
- the first member may include a second protrusion groove formed on the inner surface as described above.
- the second protrusion may be seated in the second protrusion groove.
- a repulsive force generated by the first magnetic body and the second magnetic body may be applied to the first member. Accordingly, the first member and the second member may press the tilting guide part disposed between the first member and the holder 1131 through a repulsive force.
- a tilting guide unit 1141 may be disposed in the third area AR3 .
- first protrusion groove PH1 may be located in the fourth seating groove 1131S4a.
- first protrusion of the tilting guide part 1141 may be accommodated in the first protrusion groove PH1 .
- the first protrusion PR1 may be in contact with the first protrusion groove.
- a maximum diameter of the first protrusion groove PH1 may correspond to a maximum diameter of the first protrusion portion PR1 .
- This may be equally applied to the second protrusion groove and the second protrusion PR2 . That is, the maximum diameter of the second protrusion groove may correspond to the maximum diameter of the second protrusion portion PR2 .
- the second protrusion may be in contact with the second protrusion groove.
- the number of the first protrusion grooves PH1 may be plural.
- any one of the first protrusion groove PH1 and the second protrusion groove PH2 may include a 1-1 protrusion groove PH1a and a 1-2 protrusion groove PH1b.
- the first protrusion groove PH1 includes a 1-1 protrusion groove PH1a and a 1-2 protrusion groove PH1b. And the following description may be equally applied to the second protrusion groove PH2.
- the second protrusion groove PH2 includes the 2-1 protrusion groove and the 2-2 protrusion groove, and the description of the 1-1 protrusion groove is applied to the 2-1 protrusion groove, and the 2-2 protrusion groove is applied.
- the description of the 1-2 protrusion groove may be applied.
- the 1-1 protrusion groove PH1a and the 1-2 protrusion groove PH1b may be arranged side by side in the first direction (x-axis direction).
- the 1-1 protrusion groove PH1a and the 1-2 protrusion groove PH1b may have the same maximum width.
- the number of inclined surfaces of the plurality of first protrusion grooves PH1 may be different from each other.
- the first protrusion groove PH1 may include a bottom surface of the groove and an inclined surface.
- the number of inclined surfaces of the plurality of protrusion grooves may be different from each other.
- the width of the bottom surface of the projection groove may be different.
- the 1-1 protrusion groove PH1a may include a first groove bottom surface LS1 and a first inclined surface CS1.
- the 1-2 protrusion groove PH1b may include a second groove bottom surface LS2 and a second inclined surface CS2.
- first groove bottom surface LS1 and the second groove bottom surface LS2 may have different widths.
- An area of the first groove bottom surface LS1 may be smaller than an area of the second groove bottom surface LS2.
- the number of the first inclined surfaces CS1 in contact with the first groove bottom surface LS1 may be different from the number of the second inclined surfaces CS2 .
- the number of the first inclined surfaces CS1 may be greater than the number of the second inclined surfaces CS2 .
- the assembly tolerance of the first protrusion seated in the first protrusion groove PH1 can be easily supplemented.
- the first protrusions come into contact with the more inclined surfaces, so that the position of the first protrusions in the 1-1 protrusion groove PH1a is more accurately determined. can keep
- the number of inclined surfaces in contact with the first protrusion is smaller than that of the 1-1 protrusion groove PH1b, so that the position of the first protrusion can be easily adjusted.
- the second inclined surfaces CS2 may be spaced apart from each other in the second direction (Y-axis direction).
- the second groove bottom surface LS2 extends in the first direction (X-axis direction) so that the first protrusion can easily move in the first direction (X-axis direction) while the first protrusion is in contact with the second inclined surface CS2 . That is, the position of the first protrusion may be easily adjusted in the 1-2 protrusion groove PH1b. In addition, assembly easiness due to tolerance may be improved.
- the first area AR1 , the second area AR2 , and the third area AR3 may have different heights in the first direction (X-axis direction).
- the first area AR1 may have a greater height in the first direction (X-axis direction) than the second area AR2 and the third area AR3 . Accordingly, a step may be positioned between the first area AR1 and the second area AR2 .
- the second member 1131a may include a first groove gr1 .
- the first groove gr1 may be positioned on the inner surface of the member base portion 1131aa.
- the above-described second magnetic material may be seated in the first groove gr1 .
- the number of the first grooves gr1 may be plural according to the number of the second magnetic material. That is, the number of the first grooves gr1 may correspond to the number of the second magnetic material.
- the second member 1131a may include a member base portion 1131aa , a first extension portion 1131ab , and a second extension portion 1131ac .
- the member base portion 1131aa may be located at the outermost side of the first camera actuator.
- the member base portion 1131aa may be positioned outside the first member. That is, the first member may be positioned between the member base part 1131aa and the tilting guide part.
- the first extension portion 1131ab may extend in the third direction (Z-axis direction) from the edge of the member base portion 1131aa. That is, the first extension portion 1131ab may extend from the member base portion 1131aa toward the holder 1131 . This is also the case with the second extension 1131ac. Also, the second extension portion 1131ac may extend in the third direction (Z-axis direction) from the edge of the member base portion 1131aa. In an embodiment, the first extension portion 1131ab and the second extension portion 1131ac may be positioned at edges of the member base portion 1131aa in the second direction (Y-axis direction). In addition, the first extension portion 1131ab and the second extension portion 1131ac may be disposed between the upper member and the lower member.
- the second member 1131a may have a groove formed by the first extension portion 1131ab and the second extension portion 1131ac. That is, a groove may be positioned between the first extension part 1131ab and the second extension part 1131ac. Accordingly, the first extension portion 1131ab and the second extension portion 1131ac may be connected to each other only by the member base portion 1131aa. With this configuration, the second member 1131a may continuously receive a repulsive force by the second magnetic body seated in the center of the member base portion 1131aa, particularly, the first groove gr1.
- the rigidity of the second member 1131a may be greater than that of the first member.
- the rigidity of the first member according to the embodiment may be increased by having the upper member and the lower member. With this configuration, a difference in stiffness between the second member and the first member may be reduced. Accordingly, when the holder 1131 coupled to the second member 1131a and the second member 1131a is tilted along the X-axis or the Y-axis, the second member 1131a has a small adjacent distance to the first member. and may be in contact with the first member. Accordingly, since the first member has improved rigidity as described above, it is possible to easily perform an operation as a stopper. That is, the reliability of the camera actuator may be improved.
- the difference in stiffness between the first member and the second member is reduced, damage or damage due to contact during tilting may be minimized. That is, the reliability of the camera actuator may be improved.
- first extension portion 1131ab may be spaced apart from the second extension portion 1131ac in the second direction (Y-axis direction) to form a separation space.
- the first member and the tilting guide unit may be seated in this spaced apart space.
- the second magnetic body and the first magnetic body may be positioned in the separation space.
- first extension 1131ab and the second extension 1131ac may have the same length in the third direction (Z-axis direction). Accordingly, since the coupling force and weight are balanced, the tilt of the holder can be accurately performed without inclining to one side.
- first extension portion 1131ab and the second extension portion 1131ac may be coupled to the holder.
- the coupling may be coupled to each other through a bonding member other than the above-described protrusion and groove structures.
- the first extension portion 1131ab and the second extension portion 1131ac may include a third coupling groove 1131k formed in a third direction (Z-axis direction).
- a coupling protrusion 1131m may be positioned in a region overlapping the first extension portion 1131ab and the second extension portion 1131ac in the third direction (Z-axis direction) in the fourth seating groove 1131S4a.
- the coupling protrusion 1131m may be positioned to correspond to the third coupling groove 1131k.
- a bonding member such as epoxy may be applied to the third coupling groove 1131k.
- the coupling protrusion 1131m may be inserted into the third coupling groove 1131k of the first extension 1131ab and the second extension 1131ac.
- the second member 1131a and the holder 1131 may be coupled to each other.
- the repulsive force applied to the second member 1131a may be transmitted to the holder 1130 through this coupling.
- FIG. 9A is a perspective view of a tilting guide part of a first camera actuator according to an embodiment
- FIG. 9B is a perspective view in a different direction from FIG. 9A
- FIG. 9C is a cross-sectional view taken along line FF′ in FIG. 9A.
- the tilting guide part 1141 includes a base BS, a first protrusion PR1 protruding from the first surface 1141a of the base BS, and a second surface 1141b of the base BS protruding from the base BS. It may include a second protrusion PR2 that is Also, the surfaces on which the first protrusion and the second protrusion are formed may be opposite to each other depending on the structure, but will be described below with reference to the drawings.
- the first protrusion PR1 and the second protrusion PR2 may be integrally formed with the base BS, and as shown in the drawing, the first protrusion PR1 and the second protrusion RP2 have a spherical shape like a ball. It should be understood that it is possible to have
- the base BS may include a first surface 1141a and a second surface 1141b opposite to the first surface 1141a. That is, the first surface 1141a may be spaced apart from the second surface 1141b in the third direction (Z-axis direction), and may be outer surfaces facing each other or facing each other within the tilting guide unit 1141 . .
- the tilting guide part 1141 may include a first protrusion PR1 extending to one side on the first surface 1141a.
- the first protrusion PR1 may protrude toward the holder from the first surface 1141a.
- a plurality of first protrusions PR1 may include a 1-1 protrusion PR1a and a 1-2 protrusion PR1b.
- the 1-1 protrusion PR1a and the 1-2 protrusion PR1b may be positioned side by side in the first direction (X-axis direction). In other words, the 1-1 protrusion PR1a and the 1-2 protrusion PR1b may overlap in the first direction (X-axis direction). Also, in the embodiment, the 1-1 protrusion PR1a and the 1-2 protrusion PR1b may be bisected by an imaginary line extending in the first direction (X-axis direction).
- the 1-1 protrusion PR1a and the 1-2 protrusion PR1b may have a curvature and, for example, may have a hemispherical shape.
- the 1-1 protrusion PR1a and the 1-2 protrusion PR1b may contact the first groove of the housing at a point most spaced apart from the first surface 1141a of the base BS.
- an alignment groove 1141aa may be positioned on the first surface 1141a.
- the alignment groove 1141aa may be disposed on one side of the first surface 1141a to provide an assembly position or an assembly direction of the tilting guide unit 1141 during the assembly process.
- the tilting guide part 1141 may include a second protrusion PR2 extending to one side on the second surface 1141a.
- the second protrusion PR2 may protrude toward the housing from the second surface 1141b.
- the second protrusion PR2 is plural, and may include a 2-1 protrusion PR2a and a 2-2 protrusion PR2b in an embodiment.
- the 2-1 protrusion PR2a and the 2-2 protrusion PR2b may be positioned side by side in the second direction (Y-axis direction). That is, the 2-1 protrusion PR2a and the 2-2 protrusion PR2b may overlap in the second direction (Y-axis direction). Also, in the exemplary embodiment, the 2-1 th protrusion PR2a and the 2-2 th protrusion PR2b may be bisected by an imaginary line extending in the second direction (Y-axis direction).
- the second-first protrusion PR2a and the second-second protrusion PR2b may have a curvature, for example, a hemispherical shape.
- the second-first protrusion PR2a and the second-second protrusion PR2b may contact the second member 1131a at a point spaced apart from the second surface 1141b of the base BS.
- the 1-1 protrusion PR1a and the 1-2 protrusion PR1b may be positioned in a region between the 2-1 protrusion PR2a and the 2-2 protrusion PR2b in the second direction.
- the 1-1 protrusion PR1a and the 1-2 protrusion PR1b are disposed in the center of the space between the 2-1 protrusion PR2a and the 2-2 protrusion PR2b in the second direction.
- the actuator according to the embodiment may have the X-axis tilt angle with respect to the X-axis in the same range.
- the tilting guide unit 1141 sets the X-axis in a range (eg, positive/negative range) in which the holder can tilt the X-axis based on the 1-1 protrusion PR1a and the 1-2 protrusion PR1b.
- a range eg, positive/negative range
- the holder can tilt the X-axis based on the 1-1 protrusion PR1a and the 1-2 protrusion PR1b.
- the same can be provided as a standard.
- the 2-1 protrusion PR2a and the 2-2 protrusion PR2b may be positioned in a region between the 1-1 protrusion PR1a and the 1-2 protrusion PR1b in the first direction.
- the 2-1 protrusion PR2a and the 2-2 protrusion PR2b are disposed at the center of the space between the 1-1 protrusion PR1a and the 1-2 protrusion PR1b in the first direction. can be located With this configuration, the actuator according to the embodiment can have the angle of the Y-axis tilt with respect to the Y-axis in the same range.
- the tilting guide part 1141 and the holder set the Y-axis tiltable range (eg, positive/negative range) based on the 2-1 protrusion PR2a and the 2-2 protrusion PR2b on the Y-axis.
- the Y-axis tiltable range eg, positive/negative range
- the first surface 1141a may include a first outer line M1 , a second outer line M2 , a third outer line M3 , and a fourth outer line M4 .
- the first outer line M1 and the second outer line M2 may face each other, and the third outer line M3 and the fourth outer line M4 may face each other.
- a third outer line M3 and a fourth outer line M4 may be positioned between the first outer line M1 and the second outer line M2 .
- the first outer line M1 and the second outer line M2 are perpendicular to the first direction (X-axis direction), but the third outer line M3 and the fourth outer line M4 are in the first direction (X-axis direction) axial direction).
- the first protrusion PR1 may be positioned on the first virtual line VL1 .
- the first virtual line LV1 is a line that bisects the first outer line M1 and the second outer line M2 .
- the first and third virtual lines LV1 and LV1' are lines that bisect the base BS in the second direction (Y-axis direction). Accordingly, the tilting guide unit 1141 may easily perform the X-axis tilt through the first protrusion PR1 .
- a rotational force may be uniformly applied to the tilting guide unit 1141 . Accordingly, the X-axis tilt can be precisely performed and the reliability of the device can be improved.
- the 1-1 protrusion PR1a and the 1-2 protrusion PR1b may be symmetrically disposed with respect to the first imaginary line VL1 and the second imaginary line VL2 .
- the 1-1 protrusion PR1a and the 1-2 protrusion PR1b may be symmetrically positioned with respect to the first central point C1 .
- the support force supported by the first protrusion PR1 may be equally applied to the upper and lower sides of the second virtual line VL2 when tilting the X-axis. Accordingly, the reliability of the tilting guide unit may be improved.
- the second virtual line VL2 is a line that bisects the third outer line M3 and the fourth outer line M4 .
- the second and fourth virtual lines LV2 and LV2' are lines that bisect the base BS in the first direction (X-axis direction).
- first central point C1 may be an intersection of the first virtual line VL1 and the second virtual line VL2 .
- it may be a point corresponding to the center of gravity according to the shape of the tilting guide unit 1141 .
- the second surface 1141b may include a fifth outer line M1 ′, a sixth outer line M2 ′, a seventh outer line M3 ′, and an eighth outer line M4 ′.
- the fifth outer line M1' and the sixth outer line M2' may face each other, and the seventh outer line M3' and the eighth outer line M4' may face each other.
- a seventh outer line M3 ′ and an eighth outer line M4 ′ may be positioned between the fifth outer line M1 ′ and the sixth outer line M2 ′.
- fifth outer line M1' and the sixth outer line M2' are perpendicular to the first direction (X-axis direction), but the seventh outer line M3' and the eighth outer line M4' are the second It may be parallel to one direction (X-axis direction).
- the tilting guide unit 1141 performs the Y-axis tilt based on the fourth virtual line VL2 ′, a rotational force may be uniformly applied to the tilting guide unit 1141 . Accordingly, the Y-axis tilt can be precisely performed and the reliability of the device can be improved.
- the second-first protrusion PR2a and the second-second protrusion PR2b may be symmetrically disposed on the fourth virtual line VL2' to the third virtual line VL1'.
- the second-first protrusion PR2a and the second-second protrusion PR2b may be symmetrically positioned with respect to the second central point C1'. According to this configuration, the supporting force supported by the second protrusion PR2 may be equally applied to the upper and lower sides of the tilting guide unit with respect to the fourth virtual line VL2 ′ when the Y-axis is tilted. Accordingly, the reliability of the tilting guide unit may be improved.
- the third virtual line LV1' is a line that bisects the fifth outer line M1' and the sixth outer line M2'.
- the second central point C1 ′ may be an intersection point of the third virtual line VL1 ′ and the fourth virtual line VL2 ′. Alternatively, it may be a point corresponding to the center of gravity according to the shape of the tilting guide unit 1141 .
- the interval DR2 in the first direction (X-axis direction) between the 1-1 protrusion PR1a and the 1-2 protrusion PR1b is in the first direction (X-axis direction) of the second protrusion PR2 .
- the interval ML2 in the second direction (Y-axis direction) between the 2-1 protrusion PR2a and the 2-2 protrusion PR2b is in the second direction (Y-axis) of the first protrusion PR1 . direction) may be greater than the length. Accordingly, when the Y-axis tilt is performed based on the 2-1 protrusion PR2a and the 2-2 protrusion PR2b, resistance due to the first protrusion PR1 may be minimized.
- FIG. 10 is a diagram illustrating a first driving unit of a first camera actuator according to an embodiment.
- the first driving unit 1150 includes a driving magnet 1151 , a driving coil 1152 , a Hall sensor unit 1153 , a first substrate unit 1154 , and a yoke unit 1155 .
- the driving magnet 1151 may include a first magnet 1151a , a second magnet 1151b , and a third magnet 1151c providing driving force by electromagnetic force.
- the first magnet 1151a , the second magnet 1151b , and the third magnet 1151c may be located on the outer surface of the holder 1131 , respectively.
- the driving coil 1152 may include a plurality of coils.
- the driving coil 1152 may include a first coil 1152a , a second coil 1152b , and a third coil 1152c .
- the first coil 1152a may be positioned to face the first magnet 1151a. Accordingly, the first coil 1152a may be positioned in the first housing hole 1121a of the first housing side 1121 as described above. Also, the second coil 1152b may be positioned to face the second magnet 1151b. Accordingly, the second coil 1152b may be located in the second housing hole 1122a of the second housing side 1122 as described above.
- the second camera actuator rotates the mover 1130 in a first axis (X-axis direction) or a second axis (Y-axis direction) by electromagnetic force between the driving magnet 1151 and the driving coil 1152 by controlling the rotation.
- OIS optical image stabilization
- OIS is implemented to solve the size limitation of the actuator, so that the ultra-slim, ultra-small camera It is possible to provide an actuator and a camera module including the same.
- the first substrate portion 1154 may include a first substrate side portion 1154a , a second substrate side portion 1154b , and a third substrate side portion 1154c .
- the first substrate side portion 1154a and the second substrate side portion 1154b may be disposed to face each other.
- the third substrate side portion 1154c may be positioned between the first substrate side portion 1154a and the second substrate side portion 1154b.
- first substrate side 1154a may be positioned between the first housing side and the shield can
- second substrate side 1154b may be positioned between the second housing side and the shield can
- third substrate side part 1154c may be positioned between the third housing side part and the shield can, and may be the bottom surface of the first substrate part 1154 .
- the first substrate side portion 1154a may be coupled to the first coil 1152a and electrically connected thereto. Also, the first substrate side portion 1154a may be coupled to the first Hall sensor 1153a and electrically connected thereto.
- the second substrate side 1154b may be coupled to and electrically connected to the second coil 1152b. It should also be understood that the second substrate side 1154b may engage and electrically connect with the first Hall sensor.
- the third substrate side 1154c may be coupled to and electrically connected to the third coil 1152c.
- the third substrate side portion 1154c may be coupled to and electrically connected to the second Hall sensor 1153b.
- the yoke unit 1155 may include a first yoke 1155a, a second yoke 1155b, and a third yoke 1155c.
- the first yoke 1155a may be positioned in the first seating groove and may be coupled to the first magnet 1151a.
- the second yoke 1155b may be positioned in the second seating groove and coupled to the second magnet 1151b.
- the third yoke 1155c may be positioned in the third seating groove and may be coupled to the third magnet 1151c.
- the first to third yokes 1155a to 1155c allow the first to third magnets 1151a to 1151c to be easily seated in the first to third seating grooves to be coupled to the housing.
- FIG. 11A is a perspective view of a first camera actuator according to an embodiment
- FIG. 11B is a cross-sectional view taken along line PP′ in FIG. 11A
- FIG. 11C is a cross-sectional view taken along QQ′ in FIG. 11A.
- the first coil 1152a may be located on the first housing side 1121, and the first magnet 1151a may be located on the first holder outer surface 1131S1 of the holder 1131. have. Accordingly, the first coil 1152a and the first magnet 1151a may be positioned to face each other. The first magnet 1151a may at least partially overlap the first coil 1152a in the second direction (Y-axis direction).
- the second coil 1152b may be positioned on the second housing side 1122 , and the second magnet 1151b may be positioned on the second holder outer surface 1131S2 of the holder 1131 . Accordingly, the second coil 1152b and the second magnet 1151b may be positioned to face each other. The second magnet 1151b may at least partially overlap the second coil 1152b in the second direction (Y-axis direction).
- first coil 1152a and the second coil 1152b overlap in the second direction (Y-axis direction), and the first magnet 1151a and the second magnet 1151b are disposed in the second direction (Y-axis direction). can be nested.
- the electromagnetic force applied to the outer surface of the holder (the first holder outer surface and the second holder outer surface) is located on the parallel axis in the second direction (Y-axis direction), so that the X-axis tilt is accurate and precise. can be performed.
- the second protrusions PR2a and PR2b of the tilting guide part 1141 may contact the first member 1126 of the first housing 1120 .
- the second protrusion PR2 may be seated in the second protrusion groove PH2 formed on one side of the first member 1126 .
- the second protrusions PR2a and PR2b may be the reference axis (or rotation axis) of the tilt. Accordingly, the tilting guide unit 1141 and the mover 1130 may move in the second direction.
- the first Hall sensor 1153a may be positioned outside for electrical connection and coupling with the first substrate unit 1154 . However, it is not limited to these positions.
- the third coil 1152c may be positioned on the third housing side 1123
- the third magnet 1151c may be positioned on the third holder outer surface 1131S3 of the holder 1131 .
- the third coil 1152c and the third magnet 1151c may at least partially overlap in the first direction (X-axis direction). Accordingly, the strength of the electromagnetic force between the third coil 1152c and the third magnet 1151c may be easily controlled.
- the tilting guide part 1141 may be located on the fourth holder outer surface 1131S4 of the holder 1131 as described above. In addition, the tilting guide part 1141 may be seated in the fourth seating groove 1131S4a of the outer surface of the fourth holder. As described above, the fourth seating groove 1131S4a may include the above-described first area AR1 , the second area AR2 , and the third area AR3 .
- a second member 1131a may be disposed in the first area AR1 , and the second member 1131a may include a first groove gr1 formed on an inner surface thereof. And the second magnetic body 1142 is disposed in the first groove gr1 as described above, and the repulsive force RF2 generated from the second magnetic body 1142 is applied to the fourth of the holder 1131 through the second member 1131a. It can be transferred to the seating groove 1131S4a (RF2'). Accordingly, the holder 1131 may apply a force to the tilting guide unit 1141 in the same direction as the repulsive force RF2 generated by the second magnetic body 1142 .
- a first member 1126 may be disposed in the second area AR2 .
- the first member 1126 may include a second groove gr2 facing the first groove gr1 .
- the first member 1126 may include a second protrusion groove PH2 disposed on a surface corresponding to the second groove gr2 .
- a repulsive force RF1 generated from the first magnetic body 1143 may be applied to the first member 1126 . Accordingly, the first member 1126 and the second member 1131a press the tilting guide part 1141 disposed between the first member 1126 and the holder 1131 through the generated repulsive forces RF1 and RF2'. can do.
- a tilting guide unit 1141 may be disposed in the third area AR3 .
- the tilting guide part 1141 may include the first protrusion PR1 and the second protrusion PR2 as described above.
- the first protrusion PR1 and the second protrusion PR2 may be respectively disposed on the second surface 1141b and the first surface 1141a of the base BS.
- the first protrusion PR1 and the second protrusion PR2 may be variously positioned on opposite surfaces of the base BS.
- the first protrusion groove PH1 may be located in the fourth seating groove 1131S4a.
- the first protrusion PR1 of the tilting guide part 1141 may be accommodated in the first protrusion groove PH1 .
- the first protrusion PR1 may be in contact with the first protrusion groove PH1 .
- a maximum diameter of the first protrusion groove PH1 may correspond to a maximum diameter of the first protrusion portion PR1 . This may be equally applied to the second protrusion groove PH2 and the second protrusion portion PR2 . That is, the maximum diameter of the second protrusion groove PH2 may correspond to the maximum diameter of the second protrusion portion PR2 .
- the second protrusion PR2 may contact the second protrusion groove PH2 .
- the first axis tilt with respect to the first protrusion PR1 and the second axis tilt with respect to the second protrusion PR2 may easily occur, and the tilt radius may be improved.
- the tilting guide part 1141 is arranged side by side with the second member 1131a and the first member 1126 in the third direction (Z-axis direction), so that the tilting guide part 1141 is connected to the optical member 1132 and the second member 1131 . They may overlap in one direction (X-axis direction). More specifically, in the embodiment, the first protrusion PR1 may overlap the optical member 1132 in the first direction (X-axis direction). Furthermore, at least a portion of the first protrusion PR1 may overlap the third coil 1152c or the third magnet 1151c in the first direction (X-axis direction).
- each protrusion which is a central axis of tilt in the camera actuator according to the embodiment, may be located adjacent to the center of gravity of the mover 1130 .
- the tilting guide portion may be positioned adjacent to the center of gravity of the holder. Accordingly, the camera actuator according to the embodiment can minimize the value of the moment for tilting the holder, and can also minimize the consumption of current applied to the coil unit to tilt the holder, so power consumption and reliability of the device can be improved. .
- the second magnetic body 1142 and the first magnetic body 1143 may not overlap the third coil 1152c or the optical member 1132 in the first direction (X-axis direction).
- the second magnetic body 1142 and the first magnetic body 1143 may be spaced apart from the third coil 1152c or the optical member 1132 in the third direction (Z-axis direction). Accordingly, the magnetic force transmitted from the second magnetic body 1142 and the first magnetic body 1143 to the third coil 1152c may be minimized. Accordingly, the camera actuator according to the embodiment can easily perform vertical driving (Y-axis tilt), and power consumption can be minimized.
- the second Hall sensor 1153b located inside the third coil 1152c detects a change in magnetic flux, whereby the position sensing between the third magnet 1151c and the second Hall sensor 1153b is performed. can be performed.
- the offset voltage of the second Hall sensor 1153b may be changed according to the influence of the magnetic field formed from the second magnetic material 1142 and the first magnetic material 1143 .
- the first camera actuator includes a second member 1131a, a second magnetic body 1142, a first magnetic body 1143, a first member 1126, a tilting guide unit 1141, and a holder ( 1141 ) in a third direction. 1131) may be arranged in order. However, since the second magnetic body is positioned in the second member and the first magnetic body is positioned in the first member, the second member, the first member, the tilting guide unit, and the holder may be disposed in the order of the bar.
- the separation distance between the second magnetic body 1142 and the first magnetic body 1143 in the third direction from the holder 1131 (or the optical member 1132) may be greater than the separation distance between the tilting guide parts 1141. have.
- the second Hall sensor 1153b under the holder 1131 may also be spaced apart from the second magnetic body 1142 and the first magnetic body 1143 by a predetermined distance. Accordingly, in the second Hall sensor 1153b, the influence of the magnetic field formed from the second magnetic material 1142 and the first magnetic material 1143 is minimized, thereby preventing the Hall voltage from being concentrated positively or negatively and saturated. That is, this configuration enables the Hall electrode to have a range in which Hall calibration can be performed. Furthermore, the temperature is also affected by the electrode of the Hall sensor, and the resolution of the camera lens varies according to the temperature. Thus, it is possible to easily prevent a decrease in resolution.
- a partial area of the holder 1131 may be located outside the outer surface of the fourth holder compared to the outer surface of the fourth holder.
- the tilting guide part 1141 may be seated in the fourth seating groove 1131S4a with respect to the base BS, except for the first protrusion PR1 and the second protrusion PR2 .
- the length in the third direction (Z-axis direction) of the base BS may be smaller than the length in the third direction (Z-axis direction) of the fourth seating groove 1131S4a. According to such a structure, size reduction can be achieved easily.
- the maximum length of the tilting guide part 1141 in the third direction (Z-axis direction) may be greater than the length in the third direction (Z-axis direction) of the fourth seating groove 1131S4a.
- the end of the second protrusion PR2 may be positioned between the outer surface of the fourth holder and the first member 1126 . That is, at least a portion of the second protrusion PR2 may be located in a direction opposite to the third direction (Z-axis direction) than the holder 1131 .
- the holder 1131 may be spaced apart a predetermined distance from the end (a portion in contact with the second protrusion groove) of the second protrusion PR2 in the third direction (Z-axis direction).
- the front surface 1131aes of the second member 1131a according to the embodiment may be spaced apart from the front surface 1126es of the second member 1126 .
- the front surface 1131aes of the second member 1131a according to the embodiment may be positioned in the third direction (Z-axis direction) from the front surface 1126es of the second member 1126 .
- the front surface 1131aes of the second member 1131a according to the embodiment may be located inside the front surface 1126es of the second member 1126 .
- the first member 1126 may have an inwardly extended and bent structure.
- a portion of the second member 1131a may be located in a groove formed by the extended and bent structure of the first member 1126 .
- the second member 1131a is positioned inside the second member 1126 , space efficiency can be improved and miniaturization can be realized. Furthermore, even if driving by electromagnetic force (tilting or rotating of the mover 1130) is performed, the second member 1131a does not protrude to the outside of the first member 1126, so that contact with surrounding elements may be blocked. Accordingly, reliability may be improved.
- a predetermined separation space may exist between the second magnetic body 1142 and the first magnetic body 1143 .
- the second magnetic body 1142 and the first magnetic body 91143 may face each other with the same polarity.
- FIG. 12A is a perspective view of a first camera actuator according to an embodiment
- FIG. 12B is a cross-sectional view taken along SS′ in FIG. 12A
- FIG. 12C is an exemplary view of movement of the first camera actuator shown in FIG. 12B.
- the Y-axis tilt may be performed by the first camera actuator according to the embodiment. That is, the OIS may be implemented by rotating in the first direction (X-axis direction).
- the third magnet 1151c disposed under the holder 1131 forms an electromagnetic force with the third coil 1152c to tilt or rotate the mover 1130 based on the second direction (Y-axis direction). can do it
- the repulsive force between the second magnetic body 1142 and the first magnetic body 1143 is transmitted to the second member 1131a and the first member 1126 , and finally between the first member 1126 and the holder 1131 . It may be transferred to the tilting guide unit 1141 disposed on the . Accordingly, the tilting guide unit 1141 may be pressed by the mover 1130 and the first housing 1120 by the above-described repulsive force.
- the second protrusion PR2 may be supported by the first member 1126 .
- the tilting guide unit 1141 uses the second protrusion PR2 protruding toward the first member 1126 as a reference axis (or rotation axis), that is, in the second direction (Y-axis direction). It can be rotated or tilted. In other words, the tilting guide unit 1141 may rotate or tilt the second protrusion PR2 protruding toward the first member 1126 in the first direction (X-axis direction) with respect to the reference axis (or rotation axis).
- the mover 1130 is moved by the first electromagnetic force F1A, F1B between the third magnet 1151c disposed in the third seating groove and the third coil unit 1152c disposed on the side of the third substrate.
- the OIS may be implemented while rotating (X1->X1a) at a first angle ⁇ 1 in the axial direction.
- the mover 1130 is moved in the X-axis direction by the first electromagnetic forces F1A and F1B between the third magnet 1151c disposed in the third seating groove and the third coil unit 1152c disposed on the side of the third substrate.
- OIS may be implemented while rotating (X1->X1b) at a first angle ⁇ 1 in the opposite direction to .
- the first angle ⁇ 1 may be ⁇ 1° to ⁇ 3°.
- the present invention is not limited thereto.
- the center MC1 of the second magnetic body 1142 and the center MC2 of the first magnetic body 1143 may be arranged side by side in the third direction (Z-axis direction).
- the center line TL1 connecting the center MC1 of the second magnetic body 1142 and the center MC2 of the first magnetic body 1143 may be parallel to the third direction (Z-axis direction).
- a bisector line TL2 that bisects the second protrusion portion PR2 and corresponds to the third direction (Z-axis direction) may be parallel to the center line TL1 .
- the bisector line TL2 may be a line that bisects the second protrusion portion PR2 in the first direction (X-axis direction), and may be plural.
- the bisector TL2 may be spaced apart from the center line TL1 in the first direction (X-axis direction).
- the bisector line TL2 may be positioned above the center line TL1 .
- the center MC1 of the second magnetic body 1142 and the center MC2 of the first magnetic body 1143 are spaced apart from the bisector TL2 in the first direction (X-axis direction)
- the second magnetic body 1142 and a force (eg, repulsive force) between the first magnetic body 1143 may act apart from the bisector TL2 corresponding to the optical axis in the first direction (X-axis direction).
- momentum is generated in the mover 1130 by this force.
- the center MC1 of the second magnetic body 1142 and the center MC2 of the first magnetic body 1143 are located on the bisector TL2, the calibration proceeds depending on the position of the rotation guide part and the second magnetic body 1142 .
- the camera actuator according to the embodiment prevents the center MC1 of the second magnetic body 1142 and the center MC2 of the first magnetic body 1143 from being disposed on the bisector TL2, the tilting guide after tilting or rotating.
- the positions of the negative and the second magnetic body 1142 may be maintained.
- the center MC1 of the second magnetic body 1142 and the center MC2 of the first magnetic body 1143 may be spaced apart from each other in the first direction (X-axis direction).
- the center MC1 of the second magnetic body 1142 and the center MC2 of the first magnetic body 1143 may not be located on the bisector TL2 .
- the center MC1 of the second magnetic body 1142 and the center MC2 of the first magnetic body 1143 may be positioned above the bisector TL2 .
- the separation distance between the third coil 1152c or the third magnet 1151c increases, so that the holder can more accurately biaxially tilt. Furthermore, when current is not applied to the coil, the position of the holder can be maintained the same.
- the second magnetic body 1142 and the first magnetic body 1143 may have different lengths in the first direction (X-axis direction).
- the area of the second magnetic body 1142 coupled with the second member 1131a and tilted together with the mover 1130 may be larger than that of the first magnetic body 1143 .
- the length of the second magnetic body 1142 in the first direction (X-axis direction) may be greater than the length of the first magnetic body 1143 in the first direction (X-axis direction).
- the length of the second magnetic body 1142 in the second direction (Y-axis direction) may be greater than the length of the first magnetic body 1143 in the second direction (Y-axis direction).
- the first magnetic body 1143 may be positioned within an imaginary straight line extending both ends of the second magnetic body 1142 in the third direction.
- FIG. 13A is a cross-sectional view taken along line RR′ in FIG. 12A
- FIG. 13B is an exemplary diagram of movement of the first camera actuator shown in FIG. 13A .
- an X-axis tilt may be performed. That is, OIS may be implemented while the mover 1130 is tilted or rotated in the Y-axis direction.
- the first magnet 1151a and the second magnet 1151b disposed in the holder 1131 form an electromagnetic force with the first coil 1152a and the second coil 1152b, respectively, in the first direction (X axial direction), the tilting guide unit 1141 and the mover 1130 may be tilted or rotated.
- the repulsive force between the second magnetic body 1142 and the first magnetic body 1143 is transmitted to the first member 1126 and the holder 1131 , and finally disposed between the holder 1131 and the first member 1126 . It may be transmitted to the tilting guide unit 1141 that becomes the Accordingly, the tilting guide unit 1141 may be pressed by the mover 1130 and the first housing 1120 by the above-described repulsive force.
- the tilting guide unit 1141 uses the first protrusion PR1 protruding toward the holder 1131 (eg, toward the third direction) as a reference axis (or rotation axis), that is, in the first direction (X). axial direction) can be rotated or tilted.
- the OIS may be implemented.
- the second electromagnetic force (F2A, F2B) between the first and second magnets 1151a and 1151b disposed in the first seating groove and the first and second coil units 1152a and 1152b disposed on the side of the first and second substrates OIS may be implemented while rotating the mover 1130 at a second angle ⁇ 2 in the Y-axis direction (Y1->Y1b).
- the second angle ⁇ 2 may be ⁇ 1° to 3°.
- the present invention is not limited thereto.
- the second electromagnetic forces F2A and F2B may be generated in a third direction or in a direction opposite to the third direction, as illustrated.
- electromagnetic force is applied to the coil, in this specification, since the coil is coupled to a fixed housing, it will be described based on the movement of the magnet and the holder coupled to the magnet by the electromagnetic force. And the electromagnetic force is explained based on the direction in which the magnet and holder move. For example, when the first coil receives an electromagnetic force in a direction opposite to the third direction (Z-axis direction), the first magnet and one side of the holder 1131 adjacent to the first magnet are moved by the electromagnetic force in the third direction (Z direction) in the axial direction).
- the second coil receives an electromagnetic force in the third direction (Z-axis direction)
- the second magnet and the other side of the holder 1131 adjacent to the second magnet by the electromagnetic force are opposite to the third direction (Z-axis direction).
- receive power with Accordingly, the holder 1131 may move by receiving a force in the 'F2A' direction as shown.
- the holder 1131 may move by receiving a force in the 'F2B' direction.
- the second electromagnetic forces F2A and F2B correspond to the force of the holder moving due to the electromagnetic force generated by the first and second coils and the first and second magnets as described above.
- the second actuator moves the mover 1130 in the first direction (X-axis direction) or in the second direction (Y-axis direction) by the electromagnetic force between the driving magnet in the holder and the driving coil disposed in the first housing.
- 'Y-axis tilt' means rotating or tilting in the first direction (X-axis direction)
- 'X-axis tilting' means rotating or tilting in the second direction (Y-axis direction).
- FIG. 14 is a view for explaining an assembly procedure of the first camera actuator according to the embodiment.
- a method of assembling a first camera actuator includes coupling a first coil to a third coil and a first substrate unit to a first housing, a first mover 1130 to the first housing, and tilting
- the step of coupling the guide part 1141 , the first member 1126 , and the second member 1131a , the combined mover 1130 , the tilting guide part 1141 , the first member 1126 , and the second member 1131a ) may be made in the step of inserting the first housing (1120).
- the mover 1130, the tilting guide part 1141, the first member 1126, and the second member 1131a are combined after the step of coupling the first to third coils and the first substrate to the first housing. ) may be inserted into the first housing 1120 . For this reason, it is possible to minimize the influence of tolerances or foreign substances generated while coupling the first to third coils and the first substrate with the first housing on the optical member or the holder. Due to this, the driving accuracy of the first camera actuator may be improved.
- the combined mover 1130, the tilting guide part 1141, the first member 1126, and the second member 1131a are attached to the first housing 1120 from the side, for example, in the third direction (Z-axis direction). Since it is inserted, it is possible to minimize the impact applied to the combined mover 1130 , the tilting guide unit 1141 , the first member 1126 , and the second member 1131a compared to the case of insertion in the vertical direction.
- the third direction (Z-axis direction) of the central portion of the first member 1126 (corresponding to the tilting guide portion or overlapping in the third direction, or corresponding to the 'connection member' between the first through hole and the second through hole) ), the sum of the length ka and the length kb in the third direction (Z-axis direction) of the member base portion of the second member 1131a is the upper and lower frames connected to the central portion of the first member 1126 (upper member and lower member) It may be less than or equal to the length kc in the third direction (Z-axis direction) of the member).
- the first member 1126 may be combined with the first housing 1120 to form a single housing.
- one housing may include a first-second housing and a first-first housing 11200, which are the first members.
- FIG. 15 is a perspective view of a second camera actuator according to the embodiment
- FIG. 16 is an exploded perspective view of the second camera actuator according to the embodiment
- FIG. 17 is a cross-sectional view taken along line DD′ in FIG. 15, and FIG. It is a cross-sectional view viewed from EE'.
- the second camera actuator 1200 includes a lens unit 1220 , a second housing 1230 , a second driving unit 1250 , a base unit (not shown) and a second camera actuator 1200 .
- Two substrate units 1270 may be included.
- the second camera actuator 1200 may further include a second shield can (not shown), an elastic part (not shown), and a bonding member (not shown).
- the second camera actuator 1200 according to the embodiment may further include an image sensor IS.
- the second shield can (not shown) is located in one region (eg, the outermost) of the second camera actuator 1200 and includes components (the lens unit 1220 , the second housing 1230 , and the elastic unit to be described later). (not shown), the second driving unit 1250, the base unit (not shown), the second substrate unit 1270, and the image sensor IS).
- the second shield can (not shown) may block or reduce electromagnetic waves generated from the outside. Accordingly, the occurrence of a malfunction in the second driving unit 1250 may be reduced.
- the lens unit 1220 may be located in the second shield can (not shown).
- the lens unit 1220 may move in a third direction (Z-axis direction). Accordingly, the above-described AF function may be performed.
- the lens unit 1220 may include a lens assembly 1221 and a bobbin 1222 .
- the lens assembly 1221 may include at least one lens. Also, there may be a plurality of lens assemblies 1221 , but hereinafter, one lens assembly will be used as a reference.
- the lens assembly 1221 is coupled to the bobbin 1222 to move in the third direction (Z-axis direction) by electromagnetic force generated from the fourth magnet 1252a and the second magnet 1252b coupled to the bobbin 1222 . .
- the bobbin 1222 may include an opening area surrounding the lens assembly 1221 .
- the bobbin 1222 may be coupled to the lens assembly 1221 by various methods.
- the bobbin 1222 may include a groove in the side thereof, and may be coupled to the fourth magnet 1252a and the second magnet 1252b through the groove. A bonding member or the like may be applied to the groove.
- the bobbin 1222 may be coupled to an elastic part (not shown) at the upper end and the rear end. Accordingly, the bobbin 1222 may be supported by an elastic part (not shown) to move in the third direction (Z-axis direction). That is, the position of the bobbin 1222 may be maintained while being maintained in the third direction (Z-axis direction).
- the elastic part (not shown) may be formed of a leaf spring.
- the second housing 1230 may be disposed between the lens unit 1220 and the second shield can (not shown). In addition, the second housing 1230 may be disposed to surround the lens unit 1220 .
- a hole may be formed in a side of the second housing 1230 .
- a fourth coil 1251a and a fifth coil 1251b may be disposed in the hole.
- the hole may be positioned to correspond to the groove of the bobbin 1222 described above.
- the fourth magnet 1252a may be positioned to face the fourth coil 1251a. Also, the second magnet 1252b may be positioned to face the fifth coil 1251b.
- the elastic part (not shown) may include a first elastic member (not shown) and a second elastic member (not shown).
- the first elastic member (not shown) may be coupled to the upper surface of the bobbin 1222 .
- the second elastic member (not shown) may be coupled to the lower surface of the bobbin 1222 .
- the first elastic member (not shown) and the second elastic member (not shown) may be formed of a leaf spring as described above.
- the first elastic member (not shown) and the second elastic member (not shown) may provide elasticity with respect to the movement of the bobbin 1222 .
- the second driving unit 1250 may provide driving forces F3 and F4 for moving the lens unit 1220 in the third direction (Z-axis direction).
- the second driving unit 1250 may include a driving coil 1251 and a driving magnet 1252 .
- the lens unit 1220 may move in the third direction (Z-axis direction) by the electromagnetic force formed between the driving coil 1251 and the driving magnet 1252 .
- the driving coil 1251 may include a fourth coil 1251a and a fifth coil 1251b.
- the fourth coil 1251a and the fifth coil 1251b may be disposed in a hole formed in the side of the second housing 1230 .
- the fourth coil 1251a and the fifth coil 1251b may be electrically connected to the second substrate unit 1270 . Accordingly, the fourth coil 1251a and the fifth coil 1251b may receive current or the like through the second substrate unit 1270 .
- the driving magnet 1252 may include a fourth magnet 1252a and a fifth magnet 1252b.
- the fourth magnet 1252a and the fifth magnet 1252b may be disposed in the aforementioned groove of the bobbin 1222 and may be positioned to correspond to the fourth coil 1251a and the fifth coil 1251b.
- the base unit (not shown) may be positioned between the lens unit 1220 and the image sensor IS.
- a component such as a filter may be fixed to the base portion (not shown).
- the base part (not shown) may be disposed to surround the image sensor IS.
- the second camera actuator may be a zoom actuator or an auto focus (AF) actuator.
- the second camera actuator may support one or a plurality of lenses and may perform an autofocusing function or a zooming function by moving the lenses according to a control signal of a predetermined control unit.
- the second camera actuator may be a fixed zoom or a continuous zoom.
- the second camera actuator may provide movement of the lens assembly 1221 .
- the second camera actuator may be formed of a plurality of lens assemblies.
- the second camera actuator may include at least one of a first lens assembly (not shown), a second lens assembly (not shown), a third lens assembly (not shown), and a guide pin (not shown). can be placed.
- the second camera actuator may perform a high-magnification zooming function through the driving unit.
- the first lens assembly (not shown) and the second lens assembly (not shown) may be a moving lens that moves through a driving unit and a guide pin (not shown), and the third lens The assembly (not shown) may be a fixed lens, but is not limited thereto.
- a third lens assembly may perform a function of a concentrator to image light at a specific location, and a first lens assembly (not shown) may function as a concentrator. (not shown) may perform a variator function to reimage the image formed in another place.
- the first lens assembly in the first lens assembly (not shown), the distance to the subject or the image distance is changed a lot, so the magnification change may be large. can play an important role in
- the image formed in the first lens assembly (not shown), which is a variable changer may be slightly different depending on the location.
- the second lens assembly may perform a position compensation function for the image formed by the changer.
- the second lens assembly functions as a compensator to accurately image the image formed by the first lens assembly (not shown), which is a variable changer, at the actual image sensor position. can be done
- the image sensor IS may be located inside or outside the second camera actuator. In an embodiment, as shown, the image sensor IS may be located inside the second camera actuator.
- the image sensor IS may receive light and convert the received light into an electrical signal.
- the image sensor IS may have a plurality of pixels in the form of an array. And the image sensor IS may be located on the optical axis.
- FIG. 19 is a perspective view of a camera module according to another embodiment
- FIG. 20A is a perspective view in which some components are omitted from the camera module of FIG. 19
- FIG. 20B is an exploded perspective view of the camera module of FIG. 20 .
- a camera module 1000A may include one or a plurality of camera actuators.
- the camera module 1000A according to the embodiment may include the second camera actuator 100 and the first camera actuator 300 .
- the camera module according to the embodiment may include a case 100c that protects the second camera actuator 100 and the first camera actuator 300 .
- the case 100c may correspond to the above-described cover.
- the camera module may be used interchangeably with a 'camera device', a 'camera device', and the like.
- the second camera actuator 100 may be electrically connected to the first substrate 160 .
- the second camera actuator 100 supports one or a plurality of lenses and may perform an auto-focusing or zoom function by moving the lenses in the optical axis direction based on a control signal from a predetermined control unit.
- the first camera actuator 300 may be electrically connected to a second substrate (not shown).
- the second substrate may be electrically connected to the first substrate 160 .
- the first camera actuator 300 may be an optical image stabilizer (OIS) actuator.
- OIS optical image stabilizer
- the light incident from the outside may be incident on the first camera actuator 300 .
- the light incident on the first camera actuator 300 may be incident on the second camera actuator 100 by changing the path of the light, and the light passing through the second camera actuator 100 may be transmitted through an optical sensor (not shown) can be entered.
- the zoom or AF actuator that is the second camera actuator 100 will be described first, and then the OIS actuator that is the first camera actuator 300 will be described.
- the description of the above-described first camera actuator may be applied to the second camera actuator 100 in the same manner.
- the description of the above-described second camera actuator may be applied to the first camera actuator 300 in the same manner.
- FIG. 21 is a perspective view of the second camera actuator 100 according to the embodiment
- FIG. 22 is a perspective view in which some components are omitted from the camera actuator according to the embodiment shown in FIG. 21
- FIG. 23 is the embodiment shown in FIG. It is an exploded perspective view in which some components are omitted in the camera actuator according to the example.
- the second camera actuator 100 includes a base 20 , a first substrate 160 disposed outside the base 20 , a fourth driving unit 142 , and a third lens assembly 130 may be included.
- the second camera actuator 100 includes a first guide part 210 and a first It may include a second guide unit 220 , a first lens assembly 110 , a second lens assembly 120 , a third driving unit 141 , and a fourth driving unit 142 .
- the third driving unit 141 and the fourth driving unit 142 may include a coil or a magnet.
- the third driving unit 141 and the fourth driving unit 142 include a coil
- the third driving unit 141 includes a first coil unit 141b and a third yoke 141a.
- the fourth driving unit 142 may include a second coil unit 142b and a fourth yoke 142a.
- the third driving unit 141 and the fourth driving unit 142 may include magnets. However, it will be described with reference to the coil.
- the z-axis means the optic axis direction or a direction parallel to this
- the xz plane represents the ground
- the x-axis is perpendicular to the z-axis in the paper (xz plane).
- direction, and the y-axis may mean a direction perpendicular to the ground.
- the second camera actuator 100 includes a base 20 , a first guide part 210 , a second guide part 220 , a first lens assembly 110 , and a second lens. It may include an assembly 120 and a third lens assembly 130 .
- the base 20 may correspond to the above-described second housing.
- the second lens assembly 120 and the third lens assembly 130 may correspond to the above-described lens assembly of the second camera actuator.
- the first guide part 210 and the second guide part 220 may correspond to the above-described guide pins.
- the third driving unit 141 and the fourth driving unit 142 may correspond to the above-described fourth coil and fifth coil or fourth magnet and fifth magnet.
- the second camera actuator 100 includes a base 20 , a first guide part 210 disposed on one side of the base 20 , and the other side of the base 20 .
- a first ball bearing 117 (refer to FIG. 25A ) disposed between the first guide part 210 and the first lens assembly 110 , and the second guide part 220 and the second lens assembly 120 .
- the embodiment may include the third lens assembly 130 disposed in front of the first lens assembly 110 in the optical axis direction.
- a first guide part 210 disposed adjacent to the first sidewall of the base 20 and disposed adjacent to the second sidewall of the base 20 .
- It may include a second guide unit 220 that is The first sidewall and the second sidewall of the base 20 form an accommodating space therein, and may be disposed to face each other with the accommodating space therebetween.
- the first guide part 210 and the second guide part 220 may be disposed in the accommodating space formed through the first sidewall and the second sidewall of the base 20 .
- the first guide part 210 may be disposed adjacent to the inner surface of the first sidewall of the base 20 in the accommodation space.
- the second guide part 220 may be disposed adjacent to an inner surface of the second sidewall of the base 20 in the accommodation space.
- the first guide part 210 may be disposed between the first lens assembly 110 and the first sidewall of the base 20 .
- the second guide part 220 may be disposed between the second lens assembly 120 and the second sidewall of the base 20 .
- the first sidewall and the second sidewall of the base may be disposed to face each other.
- the friction torque is reduced to reduce the frictional resistance, thereby zooming (When zooming), there are technical effects such as improvement of driving force, reduction of power consumption and improvement of control characteristics.
- the friction torque is minimized while preventing the occurrence of a phenomenon in which the lens decentral or lens tilt and the central axis of the lens group and the image sensor are not aligned.
- the first guide part 210 and the second guide part 220 which are separately formed and assembled from the base 20, are separately employed without arranging the guide rails on the base itself, so that the injection direction is changed.
- the base 20 may be injected in the Z-axis direction.
- the rail when the rail is integrally configured with the base, the rail is injected in the Z-axis direction and a gradient occurs, causing a problem in that the straight line of the rail is distorted.
- the first guide part 210 and the second guide part 220 are injected separately from the base 20, it is possible to significantly prevent the generation of gradient compared to the prior art, so that precise injection is possible, and the gradient is generated according to the injection. There are special technical effects that can prevent
- the length of the first guide part 210 and the second guide part 220 injected along the X-axis may be shorter than that of the base 20.
- the first guide part 210 and the second guide part When the rails 212 and 222 are disposed on the 220, it is possible to minimize the generation of gradients during injection, and there is a technical effect that the possibility that the straight line of the rail is distorted is low.
- FIG 24 is an enlarged perspective view of the first guide part 210 and the second guide part 220 in the camera actuator according to the embodiment.
- the first guide part 210 may include a single or a plurality of first rails 212 .
- the second guide part 220 may include a single or a plurality of second rails 222 .
- the first rail 212 of the first guide part 210 may include a 1-1 rail 212a and a 1-2 rail 212b.
- the first guide part 210 may include a first support part 213 between the 1-1 rail 212a and the 1-2 rail 212b.
- the first rail 212 may be connected from one surface to the other surface of the first guide part 210 .
- the camera actuator and the camera module including the same solve the problem of lens decenter or tilt when zooming, so that alignment and spacing between a plurality of lens groups are well aligned There is a technical effect of remarkably improving image quality or resolution by preventing the angle of view change or defocusing.
- the first guide part 210 includes a 1-1 rail 212a and a 1-2 rail 212a, so that the 1-1 rail 212a and the 1-th rail 212a are provided.
- the second rail 212a guides the first lens assembly 110, there is a technical effect of increasing alignment accuracy.
- the first guide part 210 may include a first guide protrusion 215 extending in a lateral direction perpendicular to the extending direction of the first rail 212 .
- a first protrusion 214p may be included on the first guide protrusion 215 .
- the first protrusion 214p may include a 1-1 protrusion 214p1 and a 1-2 protrusion 214p2.
- the second guide part 220 may include a single or a plurality of second rails 222 .
- the second rail 222 of the second guide part 220 may include a 2-1 rail 222a and a 2-2 rail 222b.
- the second guide part 220 may include a second support part (not shown) between the 2-1 rail 222a and the 2-2 rail 222b.
- the second rail 222 may be connected from one surface to the other surface of the second guide part 220 .
- the second guide part 220 may include a second guide protrusion 225 extending in a lateral direction perpendicular to the extending direction of the second rail 222 .
- a second protrusion 224p including a 2-1 protrusion 224p1 and a 2-2 protrusion 224p2 may be included on the second guide protrusion 225 .
- the 1-1 protrusions 214p1 and 1-2 protrusions 214p2 of the first guide part 210 and the 2-1 protrusions 224p1 and 2-2 protrusions of the second guide part 220 are The 224p2 may be coupled to the third lens assembly 130 to be described later.
- the first guide part 210 includes the 1-1 rail 212a and the 1-2 rail 212b, so that the 1-1 rail 212a and the 1-2 rail 212b are provided. ) by guiding the first lens assembly 110, there is a technical effect of increasing the alignment accuracy.
- the second guide part 220 includes the 2-1 rail 222a and the 2-2 rail 222b, so that the 2-1 rail 222a and the 2-2 rail ( 222b) guides the second lens assembly 120, thereby having a technical effect of increasing alignment accuracy.
- the base and the guide rail are separated.
- FIG. 25A is a perspective view of a first lens assembly in the camera actuator according to the embodiment shown in FIG. 23
- FIG. 25B is a perspective view with some components removed from the first lens assembly shown in FIG. 25A .
- the first lens assembly 110 moves along the first guide part 210 and the second lens assembly 120 moves along the second guide part 220 .
- the first lens assembly 110 moves along the first guide part 210 and the second lens assembly 120 moves along the second guide part 220 .
- the first lens assembly 110 moves along the first guide part 210 and the second lens assembly 120 moves along the second guide part 220 .
- the first lens assembly 110 includes a first lens barrel 112a in which the first lens 113 is disposed and a first drive unit housing 112b in which the first drive unit 116 is disposed. can do.
- the first lens barrel 112a and the first driving unit housing 112b may be a first housing, and the first housing may have a barrel or barrel shape.
- the first driving unit 116 may be a magnet driving unit, but is not limited thereto, and a coil may be disposed in some cases.
- the second lens assembly 120 may include a second lens barrel (not shown) in which a second lens (not shown) is disposed and a second driving unit housing (not shown) in which a second driving unit (not shown) is disposed.
- the second lens barrel (not shown) and the second driving unit housing (not shown) may be a second housing, and the second housing may have a barrel or barrel shape.
- the second driving unit may be a magnet driving unit, but is not limited thereto, and a coil may be disposed in some cases.
- the second lens assembly 120 may have substantially the same structure as the first lens assembly 110 , and thus a detailed description thereof will be omitted.
- the first driving unit 116 may correspond to the two first rails 212
- the second driving unit may correspond to the two second rails 222 .
- Embodiments may use single or multiple balls to drive or move the lens assembly.
- the first ball bearing 117 and the second guide part 220 and the second lens assembly are disposed between the first guide part 210 and the first lens assembly 110 . It may include a second ball bearing (not shown) disposed between the 120 .
- the first ball bearing 117 includes a single or a plurality of 1-1 ball bearings 117a disposed above the first driving unit housing 112b and the first driving unit housing 112b. It may include a single or a plurality of 1-2 ball bearings 117b disposed on the lower side.
- the 1-1 ball bearing 117a of the first ball bearings 117 moves along the 1-1 rail 212a, which is one of the first rails 212
- the first ball bearing ( 117) of the first 1-2 ball bearings 117b may move along the first 1-2 rail 212b, which is the other one of the first rails 212 .
- the camera actuator and the camera module including the same solve the problem of lens decenter or tilt when zooming, so that the alignment between a plurality of lens groups is well aligned to achieve a better angle of view. There is a technical effect of remarkably improving image quality or resolution by preventing changes or defocusing.
- the first guide unit includes the 1-1 rail and the 1-2 rail
- the 1-1 rail and the 1-2 rail guide the first lens assembly 110 .
- the first lens assembly 110 moves, there is a technical effect of increasing the accuracy of the optical axis alignment with the second lens assembly 110 .
- the first lens assembly 110 may include a first assembly groove 112b1 in which the first ball bearing 117 is disposed.
- the second lens assembly 120 may include a second assembly groove (not shown) in which the second ball is disposed.
- the first assembly groove 112b1 of the first lens assembly 110 may be plural. In this case, a distance between two first assembly grooves 112b1 among the plurality of first assembly grooves 112b1 in the optical axis direction may be longer than a thickness of the first lens barrel 112a.
- the first assembly groove 112b1 of the first lens assembly 110 may have a V shape.
- the second assembly groove (not shown) of the second lens assembly 120 may have a V shape.
- the first assembly groove 112b1 of the first lens assembly 110 may have a U shape or a shape contacting the first ball bearing 117 at two or three points.
- the second assembly groove (not shown) of the second lens assembly 120 may have a U-shape other than a V-shape or a shape contacting the first ball bearing 117 at two or three points. With these various shapes, distortion due to tolerance can be easily resolved.
- Figure 26 is an exemplary view of driving in the camera actuator according to the embodiment.
- the magnetization method of the magnet in the first driving unit 116 may be a vertical magnetization method.
- both the N pole 116N and the S pole 116S of the magnet may be magnetized to face the first coil unit 141b.
- the N pole 116N and the S pole 116S of the magnet may be respectively disposed in the first coil unit 141b to correspond to a region in which current flows in the y-axis direction perpendicular to the ground.
- the first driving unit 116 may correspond to any one of the above-described fourth or fifth magnets
- the second driving unit 126 may correspond to the other one of the fourth magnet or the fifth magnet.
- the first to fourth driving units correspond to the magnets and coils of the above-described second driving units.
- a magnetic force DM is applied in the opposite direction to the x-axis at the N pole 116N of the first driving unit 116 (the direction of the magnetic force is positive or negative in the illustrated direction). direction), when the current DE flows in the y-axis direction in the region of the first coil part 141b corresponding to the N pole 116N, the electromagnetic force DEM acts in the z-axis direction according to Fleming's left hand rule. will do
- a magnetic force DM is applied in the x-axis direction at the S pole 116S of the first driving unit 116, and y perpendicular to the ground in the first coil unit 141b corresponding to the S pole 116S.
- the electromagnetic force DEM acts in the z-axis direction according to Fleming's left hand rule (the direction of the electromagnetic force may be positive or negative in the direction shown).
- the first lens assembly 110 which is a mover in which the first driving unit 116 is disposed, generates electromagnetic force (DEM) according to the direction of current. may move back and forth along the rail of the first guide part 210 in a direction parallel to the direction of the z-axis.
- the electromagnetic force DEM may be controlled in proportion to the current DE applied to the first coil unit 141b.
- electromagnetic force is generated between the second magnet (not shown) and the second coil unit 142b, so that the second lens assembly 120 is horizontal to the optical axis and the second guide unit 220 ) can be moved along the rails.
- FIG. 27A is a perspective view of the first substrate from which the first coil unit is removed according to the first embodiment, as viewed from a first direction
- FIG. 27C is a perspective view showing the first substrate on which the first coil unit is disposed according to the first embodiment
- FIG. 28A is a cross-sectional view of the first substrate according to the first embodiment
- FIG. 28B is the first embodiment.
- FIG. 28C is a plan view of the first substrate on which the first coil unit is disposed according to the first embodiment.
- first substrate according to a first embodiment will be described with reference to FIGS. 27A to 28C .
- first substrate may correspond to the above-described second substrate unit.
- the position detection sensor may be a magnetic sensor capable of detecting a change in magnetic force.
- the position detection sensor may be a Hall sensor, but is not limited thereto. However, in the following description, it is assumed that the position detection sensor is a Hall sensor.
- the Hall sensor may be disposed inside the winding of the coil, and the inside of the winding of the coil may be hollow.
- the Hall sensor may obtain position information of the lens assembly by sensing a change in magnetic flux of a magnet disposed on the lens assembly by the Hall sensor.
- the driver IC and the Hall sensor for controlling the movement of the lens assembly were respectively disposed on separate substrates. And, in this case, it was possible to test the mounting state of the Hall sensor by measuring the Hall resistance of the Hall sensor while the Hall sensor is mounted.
- both a driver IC and a Hall sensor are mounted on a single board for the purpose of slimming the camera module, control accuracy, and the like. And, the hall sensor mounted on the board is connected to the driver IC.
- a plurality of pads are formed on the substrate, and all of the pads are connected to the driver IC.
- the Hall sensor is only connected to the driver IC and is not directly connected to the Hall sensor.
- the Hall sensor is mounted on the first substrate 160 through a surface mount technology (SMT) or the like.
- SMT surface mount technology
- a short-circuit defect of about 3% to 4% occurs.
- the mounting state of the Hall sensor cannot be tested. That is, the mounting state of the Hall sensor is confirmed by measuring the Hall resistance.
- a test must be performed through a pad connected to the driver IC.
- the pad is connected to the Hall sensor through a driver IC instead of being directly connected to the Hall sensor, and thus there is a problem in that direct testing of the Hall sensor is impossible.
- a test pad directly connected to the Hall sensor is formed on the first substrate 160 to test the mounting state of the Hall sensor.
- the first substrate 160 may be connected to a predetermined power supply unit (not shown) to supply power to the third driving unit 141 and the fourth driving unit 142 , respectively.
- the first substrate 160 may include the first coil unit 141b of the third driving unit 141 .
- the first substrate 160 may supply power to the first coil unit 141b.
- the first substrate 160 may include the second coil unit 142b of the fourth driving unit 142 .
- the first substrate 160 may supply power to the second coil unit 142b.
- the first board 160 includes a circuit board having a wiring pattern that can be electrically connected, such as a rigid printed circuit board (Rigid PCB), a flexible printed circuit board (Flexible PCB), and a rigid flexible printed circuit board (Rigid Flexible PCB). can do.
- a rigid printed circuit board Rigid PCB
- a flexible printed circuit board Flexible PCB
- Rigid Flexible PCB rigid flexible printed circuit board
- the first substrate 160 includes a first substrate region 160a , a second substrate region 160b , and a third substrate region 160c .
- the first substrate region 160a may be disposed outside the first sidewall of the base 20 .
- the second substrate region 160b may be disposed outside the second sidewall of the base 20 .
- the third substrate region 160c may connect the first substrate region 160a and the second substrate region 160b.
- the third substrate region 160c may be disposed outside the bottom of the base 20 .
- a driver IC 161 may be disposed on one surface of the first substrate region 160a.
- the driver IC 161 may receive sensing information obtained from a gyro sensor (not shown), and control the magnitude of current or voltage supplied to the first coil unit 141b by using the received sensing information. .
- the driver IC 161 may control the magnitude of the current or voltage supplied to the first coil unit 141b based on the zoom magnification or focus position information corresponding to the zoom magnification.
- the driver IC 161 receives the detection information obtained from the gyro sensor (not shown), and controls the magnitude of the current or voltage supplied to the second coil unit 142b by using the received detection information.
- the driver IC 161 may control the magnitude of the current or voltage supplied to the first coil unit 142b based on the zoom magnification or focus position information corresponding to the zoom magnification.
- Electronic components 162 excluding the driver IC 161 may be disposed in the first substrate area 160a.
- the electronic component 162 may be a capacitor, but is not limited thereto.
- the electronic component 162 may be a memory in which control information for controlling the magnitude of current or voltage supplied to the first coil unit 141b or the second coil unit 142b is stored.
- the driver IC 161 and the electronic component 162 are disposed in the first substrate region 160a of the first substrate 160 in the drawing, the present invention is not limited thereto.
- the driver IC 161 and the electronic component 162 may be disposed in the second substrate region 160b of the first substrate 160 .
- one of the driver IC 161 and the electronic component 162 is disposed on the first substrate region 160a of the first substrate 160 , and the other is the second substrate of the first substrate 160 . It may be disposed in the region 160b.
- the first coil unit 141b of the third driving unit 141 is disposed in the first substrate region 160a of the first substrate 160 .
- a first Hall sensor 71 may be disposed in an inner region of the first coil unit 141b.
- a plurality of first Hall sensors may be disposed in an inner region of the first coil unit 141b.
- a 1-1 Hall sensor 71a and a 1-2 Hall sensor 71b spaced apart from each other in the optical axis direction may be disposed in an inner region of the first coil unit 141b. That is, as the zoom magnification of the camera module increases, the stroke of the lens assembly increases. Accordingly, it may be difficult to accurately detect the position of the lens assembly with only one Hall sensor. Accordingly, in the embodiment, a plurality of Hall sensors are used for accurate position detection within the stroke range of the lens assembly.
- the embodiment is not limited thereto.
- the first Hall sensor 71 may be implemented as a single piece, or alternatively, may be implemented with three or more.
- the first Hall sensor 71 is composed of a 1-1 Hall sensor 71a and a 1-2 Hall sensor 71b.
- a first test pad 163 connected to the first Hall sensor 71 is disposed on the first substrate region 160a.
- the first test pads 163 may be configured in plurality.
- the number of first test pads 163 may be determined according to the number of first Hall sensors 71 . That is, two first test pads may be disposed in the first substrate area 160a to correspond to one Hall sensor.
- the first Hall sensor 71 includes a 1-1 Hall sensor 71a and a 1-2 Hall sensor 71b, so that the first test pad 163 includes four first hall sensors 71b.
- a test pad may be included.
- the four first test pads 163 may be disposed outside the first Hall sensor 71 on one surface of the first substrate area 160a of the first substrate 160 .
- the four first test pads 163 may be disposed to surround the outside of the first Hall sensor 71 at positions spaced apart from the first Hall sensor 71 by a predetermined interval.
- the four first test pads 163 may be disposed in an area corresponding to the first coil unit 141b among one surface of the first substrate area 160a.
- the four first test pads 163 may be disposed to overlap the first coil unit 141b on one surface of the first substrate area 160a.
- the four first test pads 163 may be disposed to overlap a direction perpendicular to the optical axis (eg, the x-axis direction of FIG. 26 ).
- At least a portion of one surface of the first coil unit 141b may be disposed to directly face each of the four first test pads 163 . This will be described in detail below.
- the four first test pads 163 on the first substrate 160 must be exposed to the outside.
- the exposed portion of the first test pad 163 should be covered with a protection member. For example, when the first test pad 163 is exposed to the outside and comes into contact with other components, a short circuit may occur and a reliability problem may occur.
- the first coil unit 141b is disposed on the first test pad 163 . That is, the exposed portion of the first test pad 163 is covered by the first coil unit 141b, and accordingly, the first test pad 163 is configured differently by the first coil unit 141b. Avoid contact with elements. Meanwhile, the first coil unit 141b includes a coil pattern and a protection member (or insulating member) disposed to surround the coil pattern, and accordingly, the first coil unit 141b and the first test pad. It is possible to solve the problem that occurs when 163 is in contact.
- the second coil unit 142b of the fourth driving unit 142 is disposed in the second substrate region 160b of the first substrate 160 .
- a second Hall sensor 72 may be disposed in an inner region of the second coil unit 142b.
- a plurality of second Hall sensors may be disposed in the inner region of the second coil unit 142b.
- a 2-1 th Hall sensor 72a and a 2-2 th Hall sensor 72b spaced apart from each other in the optical axis direction may be disposed in an inner region of the second coil unit 142b.
- a second test pad 164 connected to the second Hall sensor 72 is disposed on the second substrate region 160b.
- the second test pad 164 may be configured in plurality.
- the number of second test pads 164 may be determined according to the number of second Hall sensors 72 . That is, two second test pads may be disposed in the second substrate region 160b to correspond to one Hall sensor.
- the second Hall sensor 72 includes a 2-1 Hall sensor 72a and a 2-2 Hall sensor 72b, so that the second test pad 164 includes four second A test pad may be included.
- the four second test pads 164 may be disposed outside the second Hall sensor 72 on one surface of the second substrate region 160b of the first substrate 160 .
- the four second test pads 164 may be disposed to surround the outside of the second Hall sensor 72 at positions spaced apart from the second Hall sensor 72 by a predetermined interval.
- the four second test pads 164 may be disposed in an area corresponding to the second coil unit 142b among one surface of the second substrate area 160b.
- the four second test pads 164 may be disposed to overlap the second coil unit 142b on one surface of the second substrate area 160b.
- the four second test pads 164 may be disposed to overlap the direction perpendicular to the optical axis (eg, the x-axis direction in FIG. 26 ). That is, one surface of the second substrate region 160b may be a surface facing the outer surface of the second sidewall of the base 20 .
- the second test pad 164 may be disposed to face the second sidewall of the base 20 and overlap the second coil unit 142b.
- At least a portion of one surface of the second coil unit 142b may be disposed to directly face each of the four second test pads 164 . This will be described in detail below.
- the four second test pads 164 must be exposed to the outside on the first substrate 160 .
- the exposed portion of the second test pad 164 should be covered with a protective member. For example, when the second test pad 164 is exposed to the outside and comes into contact with other components, a short circuit may occur and a reliability problem may occur.
- the second coil unit 142b is disposed on the second test pad 164 . That is, the exposed portion of the second test pad 164 is covered by the second coil unit 142b, and accordingly, the second test pad 164 is configured differently by the second coil unit 142b. Avoid contact with elements.
- the second coil unit 142b includes a coil pattern and a protection member (or insulating member) disposed to surround the coil pattern, and accordingly, the second coil unit 142b and the second test pad. It is possible to solve the problem that occurs when 164 is in contact.
- the first substrate 160 includes an insulating part.
- the insulating part may include an insulating layer 160 - 1 , a first passivation layer 160 - 3 , and a second passivation layer 160 - 4 to be described below.
- the first substrate 160 includes an insulating layer 160 - 1 .
- the insulating layer 160 - 1 may be rigid or flexible differently.
- the insulating layer 160-1 may include chemically strengthened/semi-tempered glass such as soda lime glass or aluminosilicate glass, polyimide (PI), or polyethylene terephthalate (polyethylene). Reinforced or soft plastic such as terephthalate, PET), propylene glycol (PPG), polycarbonate (PC), or the like, or sapphire may be included.
- chemically strengthened/semi-tempered glass such as soda lime glass or aluminosilicate glass, polyimide (PI), or polyethylene terephthalate (polyethylene).
- Reinforced or soft plastic such as terephthalate, PET), propylene glycol (PPG), polycarbonate (PC), or the like, or sapphire may be included.
- the insulating layer 160 - 1 may be partially rigid or flexible. Accordingly, the first substrate 160 may be bent while partially having a flat surface and partially having a curved surface. For example, the first substrate 160 may be partially curved while having a random curvature, or may have a surface including a random curvature and be curved or bent.
- a circuit pattern may be disposed on the insulating layer 160 - 1 .
- the circuit pattern may include a first mounting pad (not shown) on which the driver IC 161 is mounted.
- the circuit pattern may include a second mounting pad (not shown) on which the electronic component 162 is mounted.
- the circuit pattern may include a first test pad 163 connected to the first Hall sensor 71 .
- the circuit pattern is a connection line 160 - 2 that connects between the first Hall sensor 71 and the first test pad 163 or between the first Hall sensor 71 and the driver IC 161 .
- a first protective layer 160 - 3 may be disposed on the insulating layer 160 - 1 to cover the circuit pattern.
- the first protective layer 160 - 3 may be disposed to expose the surface of the first test pad 163 among the circuit patterns disposed on the insulating layer 160 - 1 .
- the first protective layer 160 - 3 may be disposed to expose a coil pad (not shown) connected to the first coil unit 141b in the circuit pattern.
- the first protective layer 160 - 3 may be a solder resist.
- a second passivation layer 160-4 may be disposed on the first passivation layer 160-3.
- the second protective layer 160 - 4 may be a coverlay.
- the second protective layer 160-4 may be disposed to expose the first test pad 163 disposed on the insulating layer 160-1.
- openings 160 - 5 exposing the surface of the first test pad 163 may be formed in the first passivation layer 160 - 3 and the second passivation layer 160 - 4 .
- the first test pad 163 may be exposed in one direction of the first substrate 160 through the opening 160 - 5 .
- the one side direction may be a direction facing the outer surface of the first sidewall of the base 20 .
- the opening 160 - 5 may include a first opening region formed in the first passivation layer 160 - 3 and a second opening region formed in the second passivation layer 160 - 3 . have.
- the first coil unit 141b may be disposed on the second passivation layer 160 - 4 .
- at least a portion of the first coil unit 141b may overlap the opening 160 - 5 formed in the first passivation layer 160 - 3 and the second passivation layer 160 - 4 . That is, the opening 160 - 5 formed in the first passivation layer 160 - 3 and the second passivation layer 160 - 4 may be covered by the first coil unit 141b .
- the first Hall sensor 71 in the state in which the first Hall sensor 71 is mounted as described above, the first Hall sensor 71 is used using the first test pad 163 exposed through the opening 160 - 5 . ) can be measured to test the mounting status. Then, when the test for the mounting state of the first Hall sensor 71 is completed, the first coil unit 141b is disposed on the opening 160 - 5 . That is, in the embodiment, the exposed portion of the first test pad 163 is covered using the first coil unit 141b.
- an additional passivation layer for protecting the first test pad 163 is unnecessary, and thus an additional process for forming the passivation layer is not required, thereby simplifying the manufacturing process, and the protection It is possible to reduce the manufacturing cost due to the layer removal.
- the design improvement effect can be achieved because the first test pad 163 or the protective layer protecting the first test pad 163 do not need to be exposed to the outside, and thus the degree of design freedom can be secured.
- first test pad 163 and the first coil unit 141b in the first substrate region 160a are illustrated in FIG. 28A , in the same manner, in the second substrate region 160b A second test pad 164 and a second coil unit 142b may be disposed.
- connection line 160 - 2 is formed on the insulating layer 160 - 1 of the first substrate 160 .
- the connection wire 160 - 2 may connect the first Hall sensor 71 and the first test pad 163 .
- the connection wire 160 - 2 may connect the first Hall sensor 71 and the driver IC 161 .
- the first Hall sensor 71 includes a 1-1 Hall sensor 71a and a 1-2 Hall sensor 71b.
- each of the Hall sensors 71a and 71b includes a plurality of terminals.
- the 1-1 Hall sensor 71a includes an input terminal and an output terminal.
- the input terminal of the conventional 1-1 Hall sensor 71a includes only one terminal connected to the driver IC 161 .
- the input terminal of the 1-1 Hall sensor 71a in the embodiment may include a 1-1 input terminal (not shown) and a 1-2 input terminal (not shown).
- the output terminal of the 1-1 Hall sensor 71a in the embodiment may include a 1-1 output terminal (not shown) and a 1-2 output terminal (not shown).
- connection wiring 160 - 2 is a first connection wiring 160 - 21 connecting the 1-1 input terminal and the 1-1 test pad 163 - 1 of the first test pads 163 .
- connection wiring 160 - 2 may include a third connection wiring 160 - 23 connecting the 1-2 th input terminal and the driver IC 161 . Accordingly, the driver IC 161 may input a signal to the 1-1 Hall sensor 71a through the third connection wire 160-23.
- the connecting line 160 - 2 is a second connecting line 160 - 22 connecting the 1-1 output terminal and the 1-2 th test pad 163 - 2 of the first test pad 163 .
- connection wiring 160 - 2 may include a fourth connection wiring 160 - 24 connecting the 1-2 th output terminal and the driver IC 161 . Accordingly, the driver IC 161 may receive the signal output from the 1-1 Hall sensor 71a through the fourth connection line 160-24.
- the 1-2 Hall sensor 71b includes an input terminal and an output terminal.
- the input terminal of the 1-2 th Hall sensor 71b in the embodiment may include a 2-1 th input terminal (not shown) and a 2-2 th input terminal (not shown).
- the output terminal of the 1-2 th Hall sensor 71b in the embodiment may include a 2-1 th output terminal (not shown) and a 2-2 th output terminal (not shown).
- the connecting line 160 - 2 is a fifth connecting line 160-25 connecting the 2-1 th input terminal and the 1-3 th test pad 163 - 3 of the first test pad 163 .
- connection wiring 160 - 2 may include a seventh connection wiring 160 - 27 connecting the 2-2 th input terminal and the driver IC 161 . Accordingly, the driver IC 161 may input a signal to the 1-2-th Hall sensor 71b through the seventh connection line 160-27.
- connection wiring 160 - 2 is a sixth connection wiring 160 - 26 connecting the 2-1 output terminal and the 1-4 th test pads 163 - 4 of the first test pads 163 .
- connection wiring 160 - 2 may include an eighth connection wiring 160 - 28 connecting the 2-2 output terminal and the driver IC 161 . Accordingly, the driver IC 161 may receive the signal output from the 1-2 th Hall sensor 71b through the eighth connection line 160 - 28 .
- a first coil part 141b is disposed on the first test pad 163 in the embodiment, and accordingly, the first test pad 163 through the first coil part 141b. to protect the exposed surfaces of
- FIG. 29A is a perspective view of the first substrate from which the first coil unit is removed according to the second exemplary embodiment, as viewed from the first direction
- FIG. 29B is the first substrate from which the first coil unit is removed according to the second exemplary embodiment in the second direction. It is a perspective view when viewed
- FIG. 29C is a view showing a coupling between the first substrate and the base according to the second embodiment
- FIG. 29D is a view showing the structure of the first substrate in a state in which the base is coupled according to the second embodiment.
- the first and second test pads in the second embodiment do not overlap the first coil unit 141b and the second coil unit 141b on the first substrate 160 . may be placed in an area.
- the first test pad 163 and the second test pad 164 overlap the first coil unit 141b and the second coil unit 142b on the first substrate 160 . was placed on
- first test pad 163a and the second test pad 164a in the second embodiment may be disposed to be spaced apart from the first coil unit 141b and the second coil unit 142b on the optical axis. .
- the first test pad 163a includes 1-1 to 1-4 test pads 163-1a, 163-2a, 163-3a, and 163-4a. Two of the 1-1 to 1-4 test pads 163-1a, 163-2a, 163-3a, and 163-4a are connected to the 1-1 Hall sensor 71a, and the other two are 1-2 It is connected to the Hall sensor 71b.
- the second test pad 164a includes 2-1 to 2-4 test pads 164-1a, 164-2a, 164-3a, and 164-4a. Two of the 2-1 to 2-4 test pads 164-1a, 164-2a, 164-3a, and 164-4a are connected to the 2-1 Hall sensor 72a, and the other two 2-2 It is connected to the Hall sensor 72b.
- a separate protective layer may be disposed on the first test pad 163a and the second test pad 164a in the second embodiment.
- the exposed surfaces of the first test pad 163a and the second test pad 164a can be protected by using the base 20 .
- the first and second sidewalls of the base 20 are disposed on the exposed surfaces of the first and second test pads 163a and 164a.
- the first sidewall and the second sidewall are exposed surfaces (preferably, the first protective layer 160-3 and the second protective layer ( 160-4) to cover the opening 160-5). Accordingly, the outside of the first sidewall and the second sidewall of the base 20 may be disposed in contact with the second protective layer 160-4 to cover the opening 160-5.
- the opening 160 - 5 is covered by the first coil part 141b and the second coil part 142b, and in the second embodiment, on both sidewalls of the base 20 . Let it be covered with a coat of arms.
- the first Hall sensor 71 and the second Hall sensor 72 are disposed inside the windings of the first coil unit 141b and the second coil unit 142b, and the inside of the winding is a coil. may be hollow.
- the first Hall sensor 71 and the second Hall sensor 72 may obtain position information of the lens assembly by the Hall sensor sensing a change in magnetic flux of a magnet disposed in the lens assembly.
- the first Hall sensor 71 and the second Hall sensor 72 are positioned inside the first coil unit 141b and the second coil unit 142b, the first coil unit 141b and the second coil unit 142b The distance between the hall sensor and the magnet is determined by the height of the coil unit 142b.
- the height of the coil is required to be higher than a predetermined height.
- a decrease in thrust or a decrease in the sensitivity of the hall sensor all cause issues in the precision of camera control, and the decent or tilt of the camera module causes safety or safety issues for users, drivers or pedestrians. It can be directly related to life.
- one of the technical tasks of the embodiment is to provide a camera actuator capable of simultaneously increasing the sensitivity of the hall sensor while increasing thrust and a camera module including the same.
- FIG. 30A is a perspective view showing a first substrate on which a coil unit is disposed according to a third embodiment
- FIG. 30B is a perspective view showing a first substrate with a coil unit removed according to the third embodiment
- FIG. 30C is a third embodiment It is a cross-sectional view of the first substrate along the
- the first lens assembly 110 in the embodiment may include a first driving unit 116 and a third driving unit 141
- the second lens assembly 120 may include a second driving unit 126 .
- a fourth driving unit 142 may be included.
- the first driving unit 116 and the second driving unit 126 may be a magnet driving unit, and the third driving unit 141 and the fourth driving unit 142 may be a coil driving unit, but are not limited thereto.
- the first driving unit 116 may include a first magnet 116b and a first yoke 116a
- the third driving unit 141 may include a second It may include a first coil unit 141b and a third yoke 141a.
- the second driving unit 126 may include a second magnet 126b and a second yoke 126a
- the fourth driving unit 142 may include a second coil unit 142b and a fourth yoke 142a.
- a seating groove 160 - 6 is formed in each region of the first substrate 160 in which the first coil part 141b and the second coil part 142b are disposed. do. And, in the embodiment, the first coil unit 141b and the second coil unit 142b are disposed in the seating groove 160 - 6 .
- the positions of the first coil unit 141b and the second coil unit 142b may be disposed to be away from the magnet by the depth of the seating groove 160 - 6 .
- the first magnet 116b disposed to face the first coil part 141b may be disposed to be close to the first Hall sensor 71 by the depth of the seating groove 160-6.
- the first coil part 141b and the first magnet 116b should be spaced apart from each other by a predetermined distance.
- a seating groove 160 - 6 is formed in the first substrate 160 , and the first coil unit 141b is disposed in the seating groove 160 - 6 .
- the first magnet 116b may be disposed to be closer to the first Hall sensor 71 by the depth of the seating groove 160 - 6 .
- the distance between the first Hall sensor 71 and the first magnet 116b may be shorter by the depth of the seating groove 160 - 6 .
- the second magnet 126b disposed to face the second coil part 142b may be disposed to be close to the second Hall sensor 72 by the depth of the seating groove 160-6. have.
- the second coil part 142b and the second magnet 126b should be spaced apart from each other by a predetermined distance.
- a seating groove 160 - 6 is formed in the first substrate 160
- the second coil unit 142b is disposed in the seating groove 160 - 6 .
- the second magnet 126b may be disposed to be closer to the second Hall sensor 72 by the depth of the seating groove 160 - 6 .
- the distance between the second Hall sensor 72 and the second magnet 126b may be shorter by the depth of the seating groove 160 - 6 .
- the seating groove 160 - 6 may be a region for removing the second protective layer 160 - 4 on the first substrate 160 .
- the first coil unit 141b and the second coil unit 142b are disposed on the second protective layer 160 - 4 .
- first coil unit 141b and the second coil unit 142b according to the second embodiment may be disposed on the first protective layer 160 - 3 .
- the second protective layer 160-4 is not disposed to cover the entire surface of the first protective layer 160-3, but the first coil part 141b and the second coil part 142b are disposed. It may include an open area (which corresponds to the seating groove) for opening the area to be used. In addition, the first coil unit 141b and the second coil unit 142b may be disposed in an open area of the second protective layer 160 - 4 .
- 31 is a view for comparing the separation distance between the Hall sensor and the magnet of the embodiment and the comparative example.
- Fig. 31 (a) is a view showing the arrangement structure of the driving unit in the comparative example
- Fig. 31 (b) is a view showing the arrangement structure of the driving unit in the embodiment.
- a first coil unit 160-42 and a Hall sensor 160-43 are respectively disposed on a first substrate 160-41 .
- the first magnets 160-44 are disposed to be spaced apart from the first coil unit 160-42 by a spacing.
- the first coil unit 160-42 and the first magnet 160-44 may be disposed to be spaced apart by a first distance DH1.
- the first coil unit 141b and the first Hall sensor 71 are disposed on the first substrate 160 .
- the first substrate 160 includes a seating groove 160 - 6 .
- the first coil part 141b may be disposed in the seating groove 160 - 6 .
- the first magnet 116b is disposed to be spaced apart from the first coil unit 141b by a spacing.
- the first Hall sensor 71 and the first magnet 116b may be spaced apart by a second distance DH2 smaller than the first gap DH1 .
- the first Hall sensor is equal to the depth of the seating groove 160 - 6 compared to the comparative example.
- the distance between 71 and the first magnet 116b may be reduced. Accordingly, in the embodiment, as the distance between the first Hall sensor 71 and the first magnet 116b increases, the location measurement sensitivity of the Hall sensor may be improved, and thus reliability may be improved.
- the first gap DH1 may be greater than the second gap DH2 by b.
- the distance between the first magnet and the first Hall sensor may be close to the depth of the seating groove 160 - 6 .
- the second gap DH2 in the embodiment is 400 ⁇ m or less, and thus can be secured twice or more shorter than that of the comparative example, and accordingly, the first magnet 116b and the second 1 There is a unique technical effect of securing the magnetic flux between the Hall sensors 71 to be about three times higher than that of the comparative example up to about 150 (mT).
- the camera actuator and the camera module including the same have a unique technical effect of simultaneously increasing the sensitivity of the hall sensor while increasing the thrust.
- one of the technical problems of the embodiment is a camera actuator capable of preventing magnetic field interference between magnets mounted on each lens assembly when a plurality of lens assemblies are driven by electromagnetic force between magnets and coils when implementing AF or Zoom, and including the same This is to provide a camera module that
- one of the technical problems of the embodiment is to provide a camera actuator capable of preventing detachment of the magnet and the yoke, and a camera module including the same.
- FIG. 33 is a perspective view of the first driving unit 116 in the camera actuator according to the embodiment.
- the first driving part 116 includes a first magnet 116b and a first yoke 116a
- the first yoke 116a includes a first support part 116a1 and the first yoke 116a.
- a first side protrusion 116a2 extending from the first supporting part 116a1 to a side surface of the first magnet 116b may be included.
- the first side protrusions 116a2 may be disposed on both side surfaces of the first magnet 116b.
- first yoke 116a may include a first fixing protrusion 116a3 extending in a direction different from, for example, the opposite direction to, the first side protrusion 116a2 .
- the first fixing protrusion 116a3 may be disposed at an intermediate position of the first supporting part 116a1, but is not limited thereto.
- the second driving part 126 includes a second magnet 126b and a second yoke 126a, and the second yoke 126a is a second support part (not shown), and the It may include a second side protrusion extending to the side of the second magnet 126b.
- the second side protrusion may be disposed on both side surfaces of the second magnet 126b.
- the second yoke 126a may include a second fixing protrusion (not shown) extending in a direction different from the second side protrusion, for example, in the opposite direction.
- the second fixing protrusion may be disposed at an intermediate position of the second support, but is not limited thereto.
- FIG. 34A is a perspective view of a second camera actuator of the camera module according to the embodiment
- FIG. 34B is an exploded perspective view of the second camera actuator according to the embodiment.
- the first camera actuator 300 includes a housing 310, an image shake control unit 320 disposed on the housing 310, and the image shake control unit 320 ) may include a mover 330 disposed on it.
- the image shake control unit 320 may correspond to the above-described first driving unit ( 1150 in FIG. 5 ).
- the first camera actuator 300 may further include a cover member 301 .
- the cover member 301 may include an accommodating space therein, and at least one side surface may be open.
- the cover member 301 may have a structure in which a plurality of side surfaces connected to each other are opened.
- the cover member 301 may have a structure in which a front surface to which light is incident from the outside, a lower surface corresponding to the second camera actuator 100 and a rear surface opposite to the front surface are open, and a mover 330 to be described later. ) can provide an optical movement path.
- the content described below may be applied in the same manner.
- the cover member 301 may include a rigid material.
- the cover member 301 may include a material such as resin or metal, and may support the housing 310 disposed in the accommodation space.
- the cover member 301 is disposed to surround the housing 310 , the image shake control unit 320 , and the mover 330 , and may support the components.
- the mover 330 which will be described later, may be moved in a first direction and/or a second direction by the image shake control unit 320 .
- the cover member 301 can fix the housing and the image shake control unit 320 at a set position, thereby providing a more accurate light movement path.
- the cover member 301 may prevent the housing 310 from escaping to the outside of the first camera actuator 300 by the elastic force of the elastic member 350 .
- the cover member 301 may be omitted depending on the arrangement relationship of the housing 310 , the image shake control unit 320 , and the mover 330 .
- 35 to 38 are perspective views of each configuration of the second camera actuator.
- the first camera actuator 300 includes the housing 310, the image shake control unit 320, the mover 330, a tilting guide unit 350, and a pulling magnet ( 360) may be included.
- the image shake control unit 320 may include a driving unit circuit board 321 , a plurality of coil units 323 , and a plurality of magnets 325
- the mover 330 includes an optical member 331 and The holder 333 may be included.
- the mover 330 may correspond to the above-described mover. and
- the image shake control unit 320 disposed on the housing 310, there is a technical effect that can provide an ultra-slim and ultra-small camera actuator and a camera module including the same.
- the image shake control unit 320 stably disposed on the housing 310 is provided to control the tilting of the mover 330 to the first axis or the second axis, thereby implementing OIS. ) or tilt (tilt) phenomenon is minimized, there is a technical effect that can produce the best optical properties.
- the image shake control unit 320 is provided to control the tilting of the mover 330 to the first axis or the second axis to realize OIS with low power consumption.
- FIG. 35A is a perspective view of the image shake control unit 320 of the first camera actuator 300
- FIG. 35B is an exploded perspective view of the image shake control unit 320 of the first camera actuator 300 .
- the image shake control unit 320 may include a driving unit circuit board 321 , a coil unit 323 , and a magnet 325 .
- the driver circuit board 321 may be connected to a predetermined power source (not shown) to apply power to the coil unit 323 .
- the driver circuit board 321 includes a circuit board having a wiring pattern that can be electrically connected, such as a rigid printed circuit board (Rigid PCB), a flexible printed circuit board (Flexible PCB), and a rigid flexible printed circuit board (Rigid Flexible PCB). can do.
- the coil unit 323 may be electrically connected to the driver circuit board 321 .
- the coil unit 323 may include one or a plurality of coil units.
- the coil unit 323 may include a first coil unit 323a, a second coil unit 323b, and a third coil unit 323c.
- the coil unit 323 may correspond to the above-described first to third coils, respectively.
- the first to third coil parts 323a, 323b, and 323c may be spaced apart from each other.
- the driver circuit board 321 may have a 'C' shape, and the first coil part 323a and the second coil part 323b face each other. may be respectively disposed on the first and second surfaces of the .
- the third coil unit 323c may be disposed on a third surface connecting the first and second surfaces of the driver circuit board 321 .
- the magnet 325 may include one or a plurality of magnets.
- the magnet 325 may include a first magnet 325a , a second magnet 325b , and a third magnet 325c disposed in an area corresponding to the coil part 323 .
- the first magnet 325a may be disposed on an area corresponding to the first coil part 323a on the first surface.
- the second magnet 325b may be disposed on a region corresponding to the second coil unit 323b on the second surface.
- the third magnet 325c may be disposed on a region corresponding to the third coil unit 323c on the third surface.
- the magnet 325 may correspond to the first to third magnets described above.
- the image shake control unit 320 may further include Hall sensors HS1 and HS2.
- the Hall sensors HS1 and HS2 may include a first Hall sensor HS1 and the third A second Hall sensor HS2 disposed adjacent to the coil unit 323c may be included.
- the driver circuit board 321 may include some components included in the first substrate 160 described in the first actuator. In addition, the driver circuit board 321 may correspond to the above-described first board unit.
- a seating groove may be formed in a region in which the first coil unit 323a , the second coil unit 323b , and the third coil unit 323c are disposed.
- the seating groove may be an open area of the coverlay.
- a test pad (not shown) for testing the Hall sensors HS1 and HS2 is formed in a region where the first coil part 323a, the second coil part 323b, and the third coil part 323c are disposed.
- a test pad for testing the Hall sensor is included, and a coverlay of an area where the coil unit is disposed is opened.
- the open areas of the test pad and the coverlay may be formed on both the first substrate 160 and the driver circuit board 321 .
- FIG. 36A is a perspective view of the housing 310 of the first camera actuator 300
- FIG. 36B is a perspective view in which the second tilting guide part 352 is coupled to the housing of FIG. 36A .
- the housing 310 may include an accommodation space to accommodate the mover 330 .
- the housing 310 may include a plurality of inner surfaces.
- the housing 310 may have a first inner surface 310S1 corresponding to the first surface of the driver circuit board 321 and a second inner surface corresponding to the second surface of the driver circuit board 321 .
- 310S2 and a third inner surface 310S3 corresponding to the third surface of the driver circuit board 321 may be included.
- the housing 310 has a first inner surface 310S1 corresponding to the first coil part 323a, a second inner surface 310S2 corresponding to the second coil part 323b, and the third nose.
- a third inner surface 310S3 corresponding to the portion 323c may be included.
- the housing 310 may include a fourth inner surface 310S4 connected to the first inner surface 310S1 and the second inner surface 310S2 and connected to the third inner surface 310S3. can
- the housing 310 may include a plurality of housing holes 311H.
- the housing hole 311H may be a through hole penetrating the outer and inner surfaces of the housing 310 .
- the plurality of housing holes 311H may include first to third housing holes 311H1 , 311H2 , and 311H3 .
- the first housing hole 311H1 may be a through hole passing through the first inner surface 310S1 and an outer surface corresponding to the first inner surface 310S1.
- the second housing hole 311H2 may be a through hole passing through the second inner surface 310S2 and an outer surface corresponding to the second inner surface 310S2.
- the third housing hole 311H3 may be a through hole passing through the third inner surface 310S3 and the outer surface corresponding to the third inner surface 310S3.
- the first housing hole 311H1 may be disposed in a region corresponding to the first coil part 323a. Also, the first housing hole 311H1 may have a size and shape corresponding to that of the first coil unit 323a. Accordingly, the first coil part 323a may be disposed by being partially or entirely inserted into the first housing hole 311H1.
- the second housing hole 311H2 may be disposed in an area corresponding to the second coil part 323b. Also, the second housing hole 311H2 may have a size and shape corresponding to that of the second coil unit 323b. Accordingly, the second coil part 323b may be disposed by being partially or entirely inserted into the second housing hole 311H2.
- the third housing hole 311H3 may be disposed in a region corresponding to the third coil part 323c. Also, the third housing hole 311H3 may have a size and shape corresponding to that of the third coil unit 323c. Accordingly, the third coil part 323c may be disposed to be partially or entirely inserted into the third housing hole 311H3.
- the housing 310 may include at least one recess 313R.
- a recess 313R may be disposed on at least one inner surface of the housing 310 .
- the recess 313R may be disposed on the fourth inner surface 310S4 of the housing 310 .
- the groove may have a concave shape on the fourth inner surface 310S4 in the outer surface direction (z-axis direction) of the housing 310 .
- the recess 313R of the housing 310 may provide a space in which the tilting guide part 350 is disposed.
- the recess 313R may provide a space in which the second tilting guide part 352 of the tilting guide part 350 is disposed.
- an adhesive member (not shown) may be disposed in the recess 313R.
- the second tilting guide part 352 may be fixed to the recess 313R of the housing 310 by the adhesive member.
- 37A to 37C are views of the mover 330 of the first camera actuator 300 .
- the mover 330 may be disposed in the housing 310 .
- the mover 330 may be disposed in the accommodation space of the housing 310 .
- the mover 330 may include an optical member 331 and a holder 333 disposed on the optical member 331 .
- the optical member 331 may be a right-angle prism.
- the optical member 331 may reflect the direction of light incident from the outside. That is, the optical member 331 may change the path of the light incident on the first camera actuator 300 from the outside toward the second camera actuator 100 .
- the holder 333 may be disposed on the optical member 331 .
- the holder 333 may be disposed to surround the optical member 331 .
- At least one side of the holder 333 may be open and may include an accommodating space therein.
- the holder 333 may have a structure in which a plurality of outer surfaces connected to each other are opened.
- the holder 333 may have a structure in which an outer surface corresponding to the optical member 331 is open, and may include an accommodation space defined as the first space 335 therein.
- the holder 333 may include an inner surface 335S.
- the inner surface 335S may be an inner surface constituting the first space 335 .
- the first space 335 may have a shape corresponding to the optical member 331 .
- the inner surface 335S of the first space 335 may directly contact the optical member 331 .
- the holder 333 may include a step 326 .
- the step 326 may be disposed in the first space 335 .
- the step 326 may serve as a guide and/or a seating part for the optical member 331 .
- a protrusion corresponding to the step 326 may be formed on the outside of the optical member 331 .
- the optical member 331 may be disposed in the first space 335 such that the protrusion is guided by the step 326 of the holder 333 . Accordingly, the holder 333 may effectively support the optical member 331 .
- the optical member 331 may be seated at a set position, and may have improved alignment characteristics in the holder 333 .
- the mover 330 may include a plurality of outer surfaces.
- the holder 333 of the mover 330 may include a plurality of outer surfaces.
- the holder 333 includes a first outer surface 330S1 corresponding to the first inner surface 310S1 of the housing 310, a second outer surface 330S2 corresponding to the second inner surface 310S2, and the It may include a third outer surface 330S3 corresponding to the third inner surface 310S3 and a fourth outer surface 330S4 corresponding to the fourth inner surface 310S4.
- the holder 333 may include at least one recess.
- a recess may be disposed on at least one outer surface of the holder 333 .
- the recess may be disposed on the fourth outer surface 330S4 of the holder 333 .
- the recess may have a concave shape on the fourth outer surface 330S4 in the first space 335 direction (z-axis direction).
- a plurality of recesses 338R and 319R of the holder 333 may be formed.
- the recesses 338R and 319R may include a third recess 338R and a fourth recess 319R.
- the third recess 338R may be disposed in a central region of the fourth outer surface 330S4. In detail, the third recess 338R may overlap the center of the fourth outer surface 330S4 in the z-axis direction.
- the third recess 338R may be disposed to face the recess 313R of the housing 310 .
- the third recess 338R may be disposed in a region overlapping the center of the recess 313R of the housing 310 in the z-axis direction.
- the third recess 338R may provide a space in which the pulling magnet 360 is disposed.
- the pulling magnet 360 may be inserted into the third recess 338R.
- an adhesive member (not shown) may be applied to the third recess 338R.
- the pulling magnet 360 may be fixedly disposed in the third recess 338R by the adhesive member.
- a plurality of the fourth recesses 319R may be disposed on the fourth outer surface 330S4.
- the fourth recess 319R may have the same size as the third recess 338R or may have different sizes.
- the plurality of fourth recesses 319R may be disposed adjacent to the third recess 338R, and may be selectively disposed to be spaced apart from the fourth recess 319R. That is, a portion of the fourth recess 319R may be disposed to be spaced apart from the third recess 338R.
- a remaining portion of the fourth recess 319R may be disposed to be connected to the third recess 338R.
- a depth of the third recess 338R may be different from a depth of the fourth recess 319R.
- each of the plurality of fourth recesses 319R may have different depths.
- the fourth recess 319R may be disposed around the third recess 338R. That is, the fourth recess 319R may be disposed around the third recess 338R to surround the periphery of the recess 313R.
- the plurality of fourth recesses 319R may include a first sub-fourth recess 319R1 and a second sub-second spaced apart from the third recess 338R in a first direction (x-axis direction). 4 recesses 319R2.
- the plurality of fourth recesses 319R include a third sub-fourth recess 319R3 and a fourth sub-fourth that are spaced apart or connected to the third recess 338R in the second direction (y-axis direction).
- a recess 319R4 may be included.
- the fourth recess 319R may provide a space into which the first tilting guide part 351 of the tilting guide part 350 is inserted.
- a plurality of protrusions (to be described later) of the first tilting guide part 351 may be inserted into the fourth recess 319R.
- the fourth recess 319R is formed to correspond to the positions of the plurality of protrusions disposed on the first tilting guide part 351 , and is a space in which the plurality of protrusions of the first tilting guide part 351 are disposed.
- the depth of the fourth recess 319R may be different from each other.
- the depths of the first sub-fourth recess 319R1 and the second sub-fourth recess 319R2 may be equal to each other. That is, the depths of the first sub-fourth recess 319R1 and the second sub-fourth recess 319R2 correspond to the heights of the plurality of first protrusions (to be described later) of the first tilting guide part 351 . can have depth.
- the third sub-fourth recess 319R3 and the fourth sub-fourth recess 319R4 may have the same depth.
- the depths of the third sub-fourth recess 319R3 and the fourth sub-fourth recess 319R4 correspond to the heights of the plurality of second protrusions (to be described later) of the first tilting guide part 351 . can have depth.
- each of the first sub-fourth recess 319R1 and the second sub-fourth recess 319R2 into which the first protrusion is inserted is the third sub-fourth recess into which the second protrusion is inserted.
- Each of the fourth sub-fourth recesses 319R3 and 319R4 may have different depths.
- the height of the first protrusion of the first tilting guide part 351 may be greater than the height of the second protrusion.
- the respective depths of the first sub-fourth recess 319R1 and the second sub-fourth recess 319R2 are the third sub-fourth recess 319R3 and the fourth sub-fourth recess 319R4. ) may be greater than the depth.
- the holder 333 may further include a plurality of recesses.
- the recess may be a groove having a concave shape in the direction of the first space 335 on the outer surface of the holder 333 .
- the plurality of recesses may include a first recess 337R1 , a second recess 337R2 , and a third recess 337R3 .
- the first recess 337R1 may be disposed on the first outer surface 330S1 .
- the first recess 337R1 may be disposed in a region corresponding to the first housing hole 311H1 .
- the second recess 337R2 may be disposed on the second outer surface 330S2 .
- the second recess 337R2 may be disposed in a region corresponding to the second housing hole 311H2 .
- the third recess 337R3 may be disposed on the third outer surface 330S3 .
- the third recess 337R3 may be disposed in a region corresponding to the third housing hole 311H3 . That is, the first housing hole 311H1 may correspond to the first coil part 323a , and the second housing hole 311H2 may correspond to the second coil part 323b . Also, the third housing hole 311H3 may correspond to the third coil part 323c.
- the magnet 325 may be disposed in the first to third recesses 337R1 , 337R2 , and 337R3 .
- the first magnet 325a is disposed in the first recess 337R1
- the second magnet 325b is disposed in the second recess 337R2
- the third magnet 325c may be disposed in the third recess 337R3. And they can be spaced apart from each other.
- FIG. 38A is a front perspective view of the tilting guide part constituting the second camera actuator
- FIG. 38B is a rear perspective view of the tilting guide part constituting the second camera actuator.
- the tilting guide part 350 may include a first tilting guide part 351 and a second tilting guide part 352 .
- the first tilting guide part 351 may provide a rotation axis for rotating or tilting the mover 330 in a second direction (eg, a vertical direction or a y-axis direction).
- the second tilting guide part 352 may provide a rotation axis for rotating or tilting the mover 330 in the first direction (eg, the left-right direction or the x-axis direction).
- the rotation of the mover 330 in the first direction is made by the second tilting guide part 352 , and the rotation in the second direction is performed by the first tilting guide part 351 .
- the camera actuator is configured such that different plates are responsible for the rotation axis for the rotation in the first direction and the rotation axis for the rotation in the second direction of the mover 330 , respectively. Accordingly, in the embodiment, when the mover 330 rotates two axes, more stable rotation is possible as the rotation axes are made by different moving plates, and rotation accuracy can be increased, thereby securing stability of rotational driving. can
- the tilting guide part 350 may be disposed between the housing 310 and the mover 330 .
- the first tilting guide part 351 and the second tilting guide part 352 constituting the tilting guide part 350 may have the same shape and size. That is, the first tilting guide part 351 and the second tilting guide part 352 may be the same as each other. Accordingly, in the embodiment, the two tilting guide parts 350 can be manufactured in the same way by one equipment, and thus manufacturing easiness can be secured.
- first tilting guide part 351 and the second tilting guide part 352 constituting the tilting guide part 350 may be disposed between the housing 310 and the mover 330 in different directions. have.
- one of the first and second tilting guides 351 and 352 may be rotated by 90 degrees with respect to the other tilting guide.
- the first tilting guide part 351 and the second tilting guide part 352 may be coupled to each other.
- the second tilting guide part 352 is coupled to the housing 310 .
- the first tilting guide part 351 may have the mover 330 disposed on the second tilting guide part 352 to be coupled to the second tilting guide part 352 .
- the coupling means that the first tilting guide part 351 is not fixedly coupled to the second tilting guide part 352, but the first tilting guide part 351 is the second tilting guide part 351. It means that it is simply in contact with the guide part 352 .
- the first tilting guide part 351 includes a plurality of protrusions and a plurality of grooves
- the second tilting guide part 352 also includes a plurality of protrusions and a plurality of grooves.
- the plurality of protrusions of the second tilting guide part 352 may be inserted into the plurality of grooves of the first tilting guide part 351 . This will be described in more detail.
- the first tilting guide part 351 and the second tilting guide part 352 are rotation axes with respect to the moving direction of the mover 330 moved by an external driving force, for example, the coil part 323 and the magnet 325 . can provide
- the first tilting guide part 351 may include a first-first surface 351S1.
- the first-first surface 351S1 may be a surface facing the fourth outer surface 330S4 of the mover 330 .
- a first moving protrusion 351P1 and a first auxiliary protrusion 351P2 may be disposed on the first-first surface 351S1 of the first tilting guide part 351 .
- the first moving protrusion 351P1 functions as a rotation axis for rotating the mover 330 in the second direction.
- the first auxiliary protrusion 351P2 may function as a stopper for limiting the rotation range of the mover 330 in the second direction.
- the first moving protrusions 351P1 may be disposed to be spaced apart from each other in the first direction (x-axis direction) with respect to the central region of the first-first surface 351S1 of the first tilting guide part 351 .
- the central region of the first-first surface 351S1 may be a region facing the pulling magnet 360 fixedly disposed on the mover 330 .
- the central region of the first-first surface 351S1 may be a region overlapping the pulling magnet 360 fixedly disposed on the mover 330 in the z-axis direction.
- first moving protrusions 351P1 are disposed to be spaced apart from each other in the x-axis direction of the central region. That is, the first moving protrusion 351P1 is spaced apart from the first sub-first moving protrusion 351Pa in the -x-axis direction with respect to the central area and the +x-axis direction with respect to the center area. and a second sub-first moving protrusion 351Pb disposed thereon.
- the first sub-first moving protrusion 351Pa may correspond to the first sub-fourth recess 319R1. That is, at least a portion of the first sub-first moving protrusion 351Pa may be disposed in the first sub-fourth recess 319R1. That is, at least a portion of the first sub-first moving protrusion 351Pa may be inserted into the first sub-fourth recess 319R1. In this case, a height of the first sub-first moving protrusion 351Pa may be greater than a depth of the first sub-fourth recess 319R1 . Accordingly, only a portion of the first sub-first moving protrusion 351Pa may be inserted into the first sub-fourth recess 319R1. Accordingly, the 1-1 surface ( 351S1 may be spaced apart from the fourth outer surface 330S4 of the holder 333 by a predetermined interval.
- the second sub-first moving protrusion 351Pb may correspond to the second sub-fourth recess 319R2. That is, at least a portion of the second sub-first moving protrusion 351Pb may be disposed in the second sub-fourth recess 319R2. That is, at least a portion of the second sub-first moving protrusion 351Pb may be inserted into the second sub-fourth recess 319R2. In this case, a height of the second sub-first moving protrusion 351Pb may be greater than a depth of the second sub-fourth recess 319R2 . Accordingly, only a portion of the second sub-first moving protrusion 351Pb may be inserted into the second sub-fourth recess 319R2.
- the 1-1 surface ( 351S1 may be spaced apart from the fourth outer surface 330S4 of the holder 333 by a predetermined interval.
- first sub-first moving protrusion 351Pa and the second sub-first moving protrusion 351Pb are arranged in the x-axis direction with respect to the center of the first tilting guide part 351, and accordingly, the mover ( 330) provides a rotating shaft for rotating in the second direction. That is, the mover 330 moves in the second direction (up and down direction) with the imaginary first line formed by the first sub-first moving protrusion 351Pa and the second sub-first moving protrusion 351Pb as a reference axis. It may be provided so that rotational motion is possible.
- the first auxiliary protrusions 351P2 may be disposed to be spaced apart from each other in the second direction (y-axis direction) with respect to the central region of the first-first surface 351S1 of the first tilting guide part 351 .
- the central region of the first-first surface 351S1 may be a region facing the pulling magnet 360 fixedly disposed on the mover 330 .
- the central region of the first-first surface 351S1 may be a region overlapping the pulling magnet 360 fixedly disposed on the mover 330 in the z-axis direction.
- first auxiliary protrusions 351P2 are disposed to be spaced apart from each other in the y-axis direction of the central region. That is, the first auxiliary protrusion 351P2 is spaced apart from the first sub-first auxiliary protrusion 351Pc in the +y-axis direction with respect to the central area and the -y-axis direction with respect to the center area.
- the second sub-first auxiliary protrusion 351Pd may be disposed.
- the first sub-first auxiliary protrusion 351Pc may correspond to the third sub-fourth recess 319R3 . That is, at least a portion of the first sub-first auxiliary protrusion 351Pc may be disposed in the third sub-fourth recess 319R3 . That is, at least a portion of the first sub-first auxiliary protrusion 351Pc may be inserted into the third sub-fourth recess 319R3 .
- the height of the first sub-first auxiliary protrusion 351Pc may be smaller than the depth of the third sub-fourth recess 319R3 . Accordingly, the entirety of the first sub-first auxiliary protrusion 351Pc may be inserted into the third sub-fourth recess 319R3. In this case, a difference between a height of the first sub-first auxiliary protrusion 351Pc and a depth of the third sub-fourth recess 319R3 may correspond to a movement range of the mover.
- the mover 330 moves upward through the first tilting guide part 351 by the difference between the height of the first sub-first auxiliary protrusion 351Pc and the depth of the third sub-fourth recess 319R3. direction can be moved.
- the first sub-first auxiliary protrusion 351Pc may contact the bottom surface of the third sub-fourth recess 319R3 to limit movement of the mover 330 . .
- the second sub-first auxiliary protrusion 351Pd may correspond to the fourth sub-fourth recess 319R4. That is, at least a portion of the second sub-first auxiliary protrusion 351Pd may be disposed in the fourth sub-fourth recess 319R4. That is, at least a portion of the second sub-first auxiliary protrusion 351Pd may be inserted into the fourth sub-fourth recess 319R4.
- the height of the second sub-first auxiliary protrusion 351Pd may be smaller than the depth of the fourth sub-fourth recess 319R4. Accordingly, the second sub-first auxiliary protrusion 351Pd may be entirely inserted into the third sub-fourth recess 319R4.
- a difference between a height of the second sub-first auxiliary protrusion 351Pd and a depth of the fourth sub-fourth recess 319R4 may correspond to a movement range of the mover. That is, the mover 330 moves downward through the first tilting guide part 351 by the difference between the height of the second sub-first auxiliary protrusion 351Pd and the depth of the fourth sub-fourth recess 319R4. direction can be moved.
- the second sub-first auxiliary protrusion 351Pd may contact the bottom surface of the fourth sub-fourth recess 319R4 to limit movement of the mover 330 .
- the second tilting guide part 352 has the same structure as the first tilting guide part 351 .
- the second tilting guide part 352 may be disposed in the recess 313R of the housing 310 in a direction different from that of the first tilting guide part 351 . That is, the first tilting guide part 351 is disposed between the housing 310 and the mover 330 such that the first moving protrusion 351P1 having a higher height among the two protrusions is arranged in the x-axis direction.
- the second tilting guide part 352 includes a second moving protrusion 352P1 corresponding to the first moving protrusion 351P1 of the first tilting guide part 351 .
- the second moving protrusion 352P1 may be disposed in a direction perpendicular to the arrangement direction of the first moving protrusion 351P1. That is, the second moving protrusion 352P1 may be disposed in the y-axis direction with respect to the center of the second tilting guide 352 .
- the second tilting guide part 352 may include a 2-1 surface 352S1.
- the 2-1-th surface 352S1 may be a surface facing the 1-2-th surface 351S2 that is opposite to the 1-1 surface 351S1 of the first tilting guide part 351 .
- a second moving protrusion 352P1 and a second auxiliary protrusion 352P2 may be disposed on the 2-1 surface 352S1 of the second tilting guide part 352 .
- the second moving protrusion 352P1 functions as a rotation axis for rotating the mover 330 in the first direction.
- the second auxiliary protrusion 352P2 may serve as a stopper for limiting a rotation range of the mover 330 in the first direction.
- the second moving protrusion 352P1 may be disposed to be spaced apart from each other in the second direction (y-axis direction) with respect to the central area of the 2-1 surface 352S1 of the second tilting guide part 352 .
- the central region of the second-first surface 352S1 may be a region facing the pulling magnet 360 fixedly disposed on the mover 330 .
- the central region of the second-first surface 352S1 may be a region overlapping the pulling magnet 360 fixedly disposed on the mover 330 in the z-axis direction.
- the second moving protrusions 352P1 are disposed to be spaced apart from each other in the x-axis direction of the central region. That is, the second moving protrusion 352P1 is spaced apart from the first sub-second moving protrusion 352Pa in the +y-axis direction with respect to the central area and the -y-axis direction with respect to the center area. and a second sub-second moving protrusion 352Pb disposed thereon.
- the first sub-second moving protrusion 352Pa and the second sub-second moving protrusion 352Pb are first moving legs disposed on the 1-2 surface 351S2 of the first tilting guide part 351 to be described later. It may correspond to the set 351R. That is, the first sub-second moving protrusion 352Pa and the second sub-second moving protrusion 352Pb are first disposed on the 1-2 surface 351S2 of the first tilting guide part 351 to be described later. It may be fitted into the moving recess (351R). This will be described in more detail below.
- first sub-second moving protrusion 352Pa and the second sub-second moving protrusion 352Pb are arranged in the y-axis direction with respect to the center of the second tilting guide part 352, and accordingly, the mover ( 330) provides a rotating shaft for rotating in the first direction. That is, the mover 330 moves in the first direction (left and right) with the imaginary second line formed by the first sub-second moving protrusion 352Pa and the second sub-second moving protrusion 352Pb as a reference axis. It may be provided so that rotational motion is possible.
- the second auxiliary protrusion 352P2 may be disposed to be spaced apart from each other in the first direction (x-axis direction) with respect to the central area of the 2-1 surface 352S1 of the second tilting guide part 352 .
- the central region of the second-first surface 352S1 may be a region facing the pulling magnet 360 fixedly disposed on the mover 330 .
- the central region of the second-first surface 352S1 may be a region overlapping the pulling magnet 360 fixedly disposed on the mover 330 in the z-axis direction.
- the second auxiliary protrusions 352P2 are disposed to be spaced apart from each other in the x-axis direction of the central region. That is, the second auxiliary protrusion 352P2 is spaced apart from the first sub-second auxiliary protrusion 352Pc in the -x-axis direction with respect to the central area and the +x-axis direction with respect to the center area.
- the second sub-second auxiliary protrusion 352Pd may be disposed.
- the first sub-second auxiliary protrusion 352Pc and the second sub-second auxiliary protrusion 352Pd may be spaced apart from the first-second surface 351S2 of the first tilting guide part 351 by a predetermined distance.
- the separation distance may correspond to a movement range of the mover.
- the mover 330 may move the second tilting guide part 352 in the left direction by the distance between the first sub-second auxiliary protrusion 352Pc and the first-second surface 351S2. . And, when out of the movement range, the first sub-second auxiliary protrusion 352Pc comes into contact with the 1-2 surface 351S2 and the bottom surface of the first tilting guide part 351, and the mover ( 330) can be restricted.
- the mover 330 may move the second tilting guide part 352 in the right direction by the distance between the second sub-second auxiliary protrusion 352Pd and the first-second surface 351S2. . And, when out of the movement range, the second sub-second auxiliary protrusion 352Pd comes into contact with the first-2 surfaces 351S2 and the bottom surface of the first tilting guide part 351, and the mover ( 330) can be restricted.
- the first tilting guide part 351 may include a 1-2 first surface 351S2.
- the 1-2-th surface 351S2 may be a surface facing the 2-1-th surface 352S1 of the second tilting guide part 352 .
- a first moving recess 351R may be disposed on the 1-2 first surface 351S2 of the first tilting guide part 351 .
- the first moving recess 351R is arranged in the y-axis direction with respect to the center of the 1-2 first surface 351S2 of the first tilting guide part 351, and accordingly, the second tilting guide part 352 It may provide a bonding space for bonding with. That is, the first moving recess 351R may correspond to the second moving protrusion 352P1 of the second tilting guide 352 .
- the first moving recess 351R includes a first sub-first moving recess 351R1 corresponding to the first sub-second auxiliary protrusion 352Pc of the second moving protrusion 352P1, and the second A second sub-first moving recess 351R2 corresponding to the second sub-second auxiliary protrusion 352Pd of the tilting guide part 352 may be included.
- first sub-second auxiliary protrusion 352Pc of the second moving protrusion 352P1 may be inserted into the first sub-first moving recess 351R1, and the second tilting guide part ( At least a portion of the second sub-second auxiliary protrusion 352Pd of 352 may be inserted into the second sub-first moving recess 351R2.
- the second tilting guide part 352 may include a 2-2 second surface 352S2 .
- the second-second surface 352S2 may be a surface facing the fourth inner surface 310S4 in which the recess 313R of the housing 310 is formed.
- a second moving recess 352R may be disposed on the 2-2 surface 352S2 of the second tilting guide part 352 . Meanwhile, the second moving recess 352R in the second tilting guide part 352 may be omitted. However, in order to manufacture the first tilting guide part 351 and the second tilting guide part 352 in the same process, in the same manner as the first tilting guide part 351 , the second tilting guide part 352 is also described above. A second moving recess 352R may be disposed.
- the second moving recess 352R may be arranged in the x-axis direction with respect to the center of the second-second surface 352S2 of the second tilting guide part 352 .
- the second moving recess 352R is a first sub-second moving recess disposed in the -x-axis direction with respect to the center of the 2-2 surface 352S2 of the second tilting guide part 352 .
- the second tilting guide part 352 is fixedly disposed in the recess 313R of the housing 310 .
- an adhesive member for fixing the second tilting guide part 352 is disposed in the recess 313R.
- the second moving recess 352R may improve the coupling force between the second tilting guide part 352 and the housing 310 . That is, in the process of fixing the second tilting guide part 352 to the housing 310 using the adhesive member, the adhesive member is disposed in the second moving recess of the second tilting guide part 352 ( 352R), thereby increasing the contact area with the adhesive member and thus improving the adhesive force.
- the first tilting guide part 351 and the second tilting guide part 352 may be formed of the same material or different from each other.
- the second tilting guide part 352 may be formed of a magnetic material.
- the second tilting guide part 352 is fixedly disposed on the housing 310 .
- the pulling magnet 360 is fixedly disposed on the mover 330 .
- the second tilting It may be interposed between the guide part 352 and the pulling magnet 360 .
- the second tilting guide part 352 is formed of a magnetic material. Accordingly, the pulling magnet 360 and the second tilting guide part 352 may generate attractive force to each other. That is, an attractive force acts between the pulling magnet 360 and the second tilting guide part 352 . Accordingly, the mover 330 may be pressed toward the housing 310 by the attractive force. That is, the mover 330 may be supported by the housing 310 by the attractive force. Also, as the mover 330 is pressed, the first tilting guide part 351 may also be pressed together with the mover 330 to be supported by the housing 310 .
- the first tilting guide part 351 and the second tilting guide part 352 may be formed by a press method. Accordingly, the first tilting guide part 351 and the second tilting guide part 352 may be formed of different materials. That is, the first tilting guide part 351 may be formed of a non-magnetic material differently from the second tilting guide part 352 .
- the first tilting guide part 351 may be formed of an injection-molded material or a ceramic material.
- the first tilting guide part 351 may be formed of a magnetic material together with the second tilting guide part 352 .
- the coupling force between the first tilting guide part 351 , the second tilting guide part 352 and the pulling magnet 360 can be further improved. have.
- the plurality of first moving protrusions and the plurality of first auxiliary protrusions on the 1-1 surface 351S1 of the first tilting guide part 351 are arranged in a cross shape with respect to the first area
- the plurality of second moving protrusions and the plurality of second auxiliary protrusions on the 2-1 surface 352S1 of the second tilting guide part 352 are arranged in a cross shape with respect to the second area.
- the first and second regions overlap the pulling magnet in a third direction.
- the plurality of first moving protrusions and the plurality of first auxiliary protrusions on the 1-1 surface 351S1 of the first tilting guide part 351 are the pulling magnet 360 and the z-axis direction. It may be arranged in the form of a cross around the overlapping area.
- the plurality of second moving protrusions and the plurality of second auxiliary protrusions on the 2-1 surface 352S1 of the second tilting guide part 352 overlap with the pulling magnet 360 in the z-axis direction. It may be arranged in the form of a cross around the area.
- 39 and 40 are views illustrating a coupling relationship between the housing, the mover, and the moving protrusion 352P1 in the second camera actuator.
- the tilting guide part 350 may include a first tilting guide part 351 and a second tilting guide part 352 .
- the second tilting guide part 352 may provide a rotation shaft for rotating the mover 330 in the first direction while generating an attractive force for fixing the mover 330 to the housing 310 . have.
- Centers of the pulling magnet 360 , the first tilting guide part 351 , and the second tilting guide part 352 may overlap each other in the z-axis direction.
- first tilting guide part 351 may be disposed between the housing 310 in which the second tilting guide 352 is disposed and the mover 330 in which the pulling magnet 360 is disposed.
- first moving protrusion 351P1 and the first auxiliary protrusion 351P2 of the first tilting guide part 351 may be inserted into the fourth recess 319R of the mover 330 .
- the first sub-first moving protrusion 351Pa may be inserted into the first sub-fourth recess 319R1
- the second sub-first moving protrusion 351Pb may be disposed in the second sub-fourth recess 319R2 . can be inserted into
- first sub-first auxiliary protrusion 351Pc may be inserted into the third sub-fourth recess 319R3, and the second sub-first auxiliary protrusion 351Pd may be inserted into the fourth sub-fourth recess ( 319R4).
- the second moving protrusion 352P1 of the second tilting guide 352 may be inserted into the first moving recess 351R of the first tilting guide 351 .
- the first tilting guide part 351 is pressed together with the mover 330 by the attractive force acting between the second tilting guide part 352 and the pulling magnet 360 to the housing 310 . can be supported on
- the first tilting guide part 351 serves as a rotation axis for rotating the mover 330 in a second direction corresponding to the y-axis direction
- the second tilting guide part 352 serves as the mover ( 330) serves as a rotation axis for rotating the first direction corresponding to the x-axis.
- the electromagnetic force between the first to third magnets 325a, 325b, 325c and the first to third coil parts 323a, 323b, and 323c disposed on the holder 333 By controlling the tilting of the mover 330 in the first axis or the second axis, there is a technical effect of minimizing the occurrence of a decent or a tilt phenomenon when implementing OIS, thereby providing the best optical characteristics.
- the mover 330 in a state in which the tilting guide part 350 is disposed between the housing 310 and the mover 330 , the mover 330 is moved by the driving force of the image shake control unit 320 in the first
- the tilting guide part 350 is disposed between the housing 310 and the mover 330
- the mover 330 is moved by the driving force of the image shake control unit 320 in the first
- the mover 330 may be fixed in the housing 310 by the cover member 301 and the elastic member 350 . Accordingly, a separate magnet and a yoke for fixing the mover 330 in the housing 310 can be omitted, so that a slimmer camera actuator can be implemented.
- 41A and 41B are diagrams illustrating an operation of a second camera actuator according to an embodiment.
- the mover 330 may control tilting along the first axis or the second axis by the driving force of the image shake control unit 320 .
- the mover 330 rotates in the second direction with respect to the imaginary first line L1 formed by the first moving protrusion 351P1 of the first tilting guide 351 as a reference axis.
- Exercise may be provided.
- the image shake control unit 320 may rotate the mover 330 in the vertical direction.
- a 3-1 coil part adjacent to the first tilting guide part 351 of the third coil part 323c and a third coil part adjacent to the first tilting guide part 351 of the third magnet 325c are adjacent to each other.
- a repulsive force may occur between the 3-1 magnets.
- the mover 330 may be tilted downward with respect to the first line L1 as a reference axis. That is, the mover 330 may be tilted by a predetermined angle in the vertical direction with respect to the first line L1. Accordingly, the movement path of the light incident on the mover 330 may be controlled.
- the mover 330 moves in the first direction with the imaginary second line L2 formed by the second moving protrusion 352P1 of the second tilting guide part 352 as a reference axis.
- a rotational movement may be provided.
- the image shake control unit 320 may rotate the mover 330 in a left and right direction.
- a 1-1 coil part adjacent to the second tilting guide part 352 of the first coil part 323a and an adjacent second tilting guide part 352 of the first magnet 325a are adjacent to each other.
- a repulsive force may occur between the 1-1 magnets.
- a 1-2 coil part of the first coil part 323a that is far from the second tilting guide part 352 and a first part of the first magnet 325a that is far from the second tilting guide part 352 -2 There may be attractive forces between magnets.
- a 2-1 coil part adjacent to the second tilting guide part 352 of the second coil part 323b and a second part adjacent to the second tilting guide part 352 of the second magnet 325b -1 There may be attractive forces between magnets.
- a 2-2 coil part of the second coil part 323b that is far from the second tilting guide part 352 and a second part of the second magnet 325b that is far from the second tilting guide part 352 Repulsive force may occur between -2 magnets.
- the mover 330 may be tilted in the left and right directions with respect to the second line L2 as a reference axis. That is, the mover 330 may be tilted at a predetermined angle in the left and right directions based on the second line L2 . Accordingly, the movement path of the light incident on the mover 330 may be controlled.
- Figure 42 is an exemplary view of the integrated body 315 in the camera module according to another embodiment.
- the second camera actuator 100 may be disposed in the first body region 315a of the integrated body 315, and the first camera actuator 300 may be disposed in the second body region 315b. can be placed.
- FIG. 43 is a mobile terminal 1500 to which a camera module according to an embodiment is applied.
- the mobile terminal 1500 may include a camera module 1000 , a flash module 1530 , and an autofocus device 1510 provided on the rear side.
- the camera module 1000 may include an image capturing function and an auto focus function.
- the camera module 1000 may include an auto-focus function using an image.
- the camera module 1000 processes an image frame of a still image or a moving image obtained by an image sensor in a shooting mode or a video call mode.
- the processed image frame may be displayed on a predetermined display unit and stored in a memory.
- a camera (not shown) may also be disposed on the front of the mobile terminal body.
- the camera module 1000 may include a first camera module 1000A and a second camera module 1000B, and OIS is implemented together with an AF or zoom function by the first camera module 1000A. This may be possible.
- the flash module 1530 may include a light emitting device emitting light therein.
- the flash module 1530 may be operated by a camera operation of a mobile terminal or a user's control.
- the autofocus device 1510 may include one of the packages of the surface light emitting laser device as a light emitting part.
- the auto-focus device 1510 may include an auto-focus function using a laser.
- the auto focus device 1510 may be mainly used in a condition in which the auto focus function using the image of the camera module 1000 is deteriorated, for example, in proximity of 10 m or less or in a dark environment.
- the autofocus device 1510 may include a light emitting unit including a vertical cavity surface emitting laser (VCSEL) semiconductor device and a light receiving unit that converts light energy such as a photodiode into electrical energy.
- VCSEL vertical cavity surface emitting laser
- FIG. 44 is a perspective view of the vehicle 700 to which the camera module according to the embodiment is applied.
- FIG. 44 is an external view of a vehicle including the vehicle driving assistance device to which the camera module 1000 according to the embodiment is applied.
- the vehicle 700 may include wheels 13FL and 13FR that rotate by a power source and a predetermined sensor.
- the sensor may be the camera sensor 2000, but is not limited thereto.
- the camera 2000 may be a camera sensor to which the camera module 1000 according to the embodiment is applied.
- the vehicle 700 of the embodiment may acquire image information through a camera sensor 2000 that captures a front image or a surrounding image, and determines a lane unidentified situation using the image information and generates a virtual lane when unidentified can do.
- the camera sensor 2000 may acquire a front image by photographing the front of the vehicle 700 , and a processor (not shown) may obtain image information by analyzing an object included in the front image.
- the processor detects the object thus, it can be included in the image information.
- the processor may further supplement the image information by acquiring distance information from the object detected through the camera sensor 2000 .
- the image information may be information about an object photographed in an image.
- the camera sensor 2000 may include an image sensor and an image processing module.
- the camera sensor 2000 may process a still image or a moving image obtained by an image sensor (eg, CMOS or CCD).
- the image processing module may process a still image or a moving image obtained through the image sensor, extract necessary information, and transmit the extracted information to the processor.
- the camera sensor 2000 may include a stereo camera to improve the measurement accuracy of the object and further secure information such as the distance between the vehicle 700 and the object, but is not limited thereto.
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Abstract
Description
Claims (10)
- 하우징;상기 하우징과 결합하는 제1 부재;광학부재를 포함하는 무버;상기 제1 부재에 배치되는 제1 자성체;상기 무버에 배치되는 제2 자성체; 및상기 무버의 틸팅을 가이드하는 틸팅 가이드부;를 포함하고,상기 무버는 상기 광학부재와 결합되는 홀더와 상기 홀더와 결합되는 제2 부재를 포함하고,상기 틸팅 가이드부는 상기 제1 자성체와 상기 제2 자성체의 척력에 의해 상기 제1 부재와 상기 홀더에 밀착되는 카메라 엑추에이터.
- 제1항에 있어서,상기 제1 부재는 제1 관통홀 및 상기 제1 관통홀에 이격 배치되는 제2 관통홀을 포함하고,상기 제2 부재는 부재 베이스부; 상기 부재 베이스부의 가장자리에 위치하고 상기 홀더를 향해 연장되는 제1 연장부; 및 상기 제1 연장부와 이격되고 상기 무버를 향해 연장되는 제2 연장부;를 포함하는 카메라 엑추에이터.
- 제2항에 있어서,상기 제1 연장부는 상기 제1 관통홀을 관통하고,상기 제2 연장부는 상기 제2 관통홀을 관통하는 카메라 엑추에이터.
- 제3항에 있어서,상기 제1 부재는,상기 제1 관통홀 및 상기 제2 관통홀 상부에 배치되는 상부부재;상기 제1 관통홀 및 상기 제2 관통홀 하부에 배치되는 하부부재;상기 상부부재와 상기 하부부재를 연결하는 연결부재;상기 상부부재의 일측에서 홀더를 향해 연장되는 제1 돌기부; 및상기 상부부재의 타측에서 홀더를 향해 연장되는 제2 돌기부;를 포함하고,상기 제1 연장부 및 상기 제2 연장부는 상기 상부부재와 상기 하부부재 사이에 배치되는 카메라 엑추에이터.
- 하우징;상기 하우징과 결합하는 제1 부재;홀더를 포함하는 무버;상기 제1 부재에 배치되는 제1 자성체;상기 무버에 배치되는 제2 자성체; 및상기 홀더와 상기 제1 부재 사이에 배치되는 틸팅 가이드부;를 포함하고,상기 무버는 상기 홀더와 결합되는 제2 부재;를 포함하고,상기 제1 부재의 일부는 상기 제2 부재와 상기 홀더 사이에 배치되고,상기 제1 자성체의 제1 면과 상기 제1 면과 마주보는 상기 제2 자성체의 제2 면은 서로 동일 극성을 갖는 카메라 엑추에이터.
- 제5항에 있어서,상기 제2 자성체의 중심과 상기 제2 부재의 중심은 서로 상이한 위치에 있도록 배치되는 카메라 엑추에이터.
- 제6항에 있어서,상기 제2 자성체의 중심은 상기 제2 부재의 중심의 상부 또는 하부에 위치하는 카메라 엑추에이터.
- 제7항에 있어서,상기 제2 자성체의 면적은 상기 제1 자성체의 면적보다 크고,상기 제1 자성체는 상기 제2 자성체의 양 끝 단을 광축 방향으로 연장하는 가상의 직선 내 위치하는 카메라 엑추에이터.
- 하우징;상기 하우징과 결합하는 제1 부재;상기 제1 부재에 배치되는 제1 자성체;상기 제1 자성체에 대응하는 제2 자성체;상기 제2 자성체가 배치되는 제2 부재;상기 제2 부재와 결합하는 홀더; 및상기 홀더와 상기 제1 부재 사이에 배치되는 틸팅 가이드부;를 포함하고,상기 제1 부재의 일부는 상기 제2 부재와 상기 홀더 사이에 배치되는 카메라 엑추에이터.
- 제9항에 있어서,상기 제1 자성체와 제2 자성체는 서로 동일 극성으로 대향하는 카메라 엑추에이터.
Priority Applications (7)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP26151239.6A EP4701217A2 (en) | 2020-06-04 | 2021-06-03 | Camera actuator and camera module including same |
| US18/000,775 US12510799B2 (en) | 2020-06-04 | 2021-06-03 | Camera actuator and camera module including same |
| EP21818614.6A EP4163716B1 (en) | 2020-06-04 | 2021-06-03 | Camera actuator and camera module including same |
| CN202180049838.8A CN115943343A (zh) | 2020-06-04 | 2021-06-03 | 相机致动器和包括相机致动器的相机模块 |
| JP2022574637A JP7728803B2 (ja) | 2020-06-04 | 2021-06-03 | カメラアクチュエータ及びこれを含むカメラモジュール |
| JP2025134887A JP2025169342A (ja) | 2020-06-04 | 2025-08-13 | カメラアクチュエータ及びこれを含むカメラモジュール |
| US19/403,820 US20260086424A1 (en) | 2020-06-04 | 2025-11-29 | Camera actuator and camera module including same |
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020200067527A KR102868494B1 (ko) | 2020-06-04 | 2020-06-04 | 카메라 엑추에이터 및 이를 포함하는 카메라 모듈 |
| KR10-2020-0067527 | 2020-06-04 | ||
| KR10-2020-0069125 | 2020-06-08 | ||
| KR1020200069125A KR20210152256A (ko) | 2020-06-08 | 2020-06-08 | 카메라 액추에이터 및 이를 포함하는 카메라 모듈 |
Related Child Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US18/000,775 A-371-Of-International US12510799B2 (en) | 2020-06-04 | 2021-06-03 | Camera actuator and camera module including same |
| US19/403,820 Continuation US20260086424A1 (en) | 2020-06-04 | 2025-11-29 | Camera actuator and camera module including same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2021246808A1 true WO2021246808A1 (ko) | 2021-12-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| PCT/KR2021/006960 Ceased WO2021246808A1 (ko) | 2020-06-04 | 2021-06-03 | 카메라 엑추에이터 및 이를 포함하는 카메라 모듈 |
Country Status (5)
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|---|---|
| US (2) | US12510799B2 (ko) |
| EP (2) | EP4701217A2 (ko) |
| JP (2) | JP7728803B2 (ko) |
| CN (1) | CN115943343A (ko) |
| WO (1) | WO2021246808A1 (ko) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20240302711A1 (en) * | 2021-04-01 | 2024-09-12 | Lg Innotek Co., Ltd. | Lens driving device |
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Also Published As
| Publication number | Publication date |
|---|---|
| EP4163716B1 (en) | 2026-02-25 |
| JP2023528065A (ja) | 2023-07-03 |
| EP4701217A2 (en) | 2026-02-25 |
| CN115943343A (zh) | 2023-04-07 |
| EP4163716A1 (en) | 2023-04-12 |
| US20230213837A1 (en) | 2023-07-06 |
| EP4163716A4 (en) | 2024-02-21 |
| JP2025169342A (ja) | 2025-11-12 |
| US12510799B2 (en) | 2025-12-30 |
| JP7728803B2 (ja) | 2025-08-25 |
| US20260086424A1 (en) | 2026-03-26 |
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