WO2021020862A1 - 카메라 액추에이터 - Google Patents
카메라 액추에이터 Download PDFInfo
- Publication number
- WO2021020862A1 WO2021020862A1 PCT/KR2020/009934 KR2020009934W WO2021020862A1 WO 2021020862 A1 WO2021020862 A1 WO 2021020862A1 KR 2020009934 W KR2020009934 W KR 2020009934W WO 2021020862 A1 WO2021020862 A1 WO 2021020862A1
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- WO
- WIPO (PCT)
- Prior art keywords
- disposed
- moving plate
- housing
- moving
- recess
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- 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
- 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
- H04N23/686—Vibration or motion blur correction performed by mechanical compensation with a variable apex prism
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/64—Imaging systems using optical elements for stabilisation of the lateral and angular position of the image
- G02B27/646—Imaging systems using optical elements for stabilisation of the lateral and angular position of the image compensating for small deviations, e.g. due to vibration or shake
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- 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
- G03B17/00—Details of cameras or camera bodies; Accessories therefor
- G03B17/02—Bodies
- G03B17/17—Bodies with reflectors arranged in beam forming the photographic image, e.g. for reducing dimensions of camera
-
- 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
-
- 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
- H04N23/50—Constructional details
- H04N23/55—Optical parts specially adapted for electronic image sensors; Mounting thereof
-
- 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
-
- 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
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- 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
- G03B2205/0007—Movement of one or more optical elements for control of motion blur
- G03B2205/003—Movement of one or more optical elements for control of motion blur by a prism with variable angle or the like
-
- 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 embodiment relates to a camera actuator.
- the camera module performs a function of photographing a subject and storing it as an image or video, and is mounted on mobile terminals such as mobile phones, laptops, drones, and vehicles.
- portable devices such as smartphones, tablet PCs, and laptops have micro-camera modules built-in, and these camera modules automatically adjust the distance between the image sensor and the lens to align the focal length of the lens (autofocus, AF). Function can be performed.
- the recent camera module may perform a zooming function of zooming up or zooming out of photographing by increasing or decreasing the magnification of a distant subject through a zoom lens.
- camera modules employ image stabilization (IS) technology to correct or prevent image shake due to unstable fixing devices or camera movement caused by user movement.
- IS image stabilization
- Such image stabilization (IS) technology includes optical image stabilizer (OIS) technology and image stabilization technology using an image sensor.
- OIS optical image stabilizer
- OIS technology is a technology that corrects motion by changing the path of light, and image shake prevention technology using an image sensor corrects movement in a mechanical and electronic manner, and OIS technology is more widely adopted.
- One of the technical problems of the embodiment is to provide an ultra-slim, ultra-miniature camera actuator and a camera module including the same.
- one of the technical problems of the embodiment is to form a moving plate that serves to tilt the prism unit in multiple axes with a magnetic material, so that the moving plate serves as an axis for tilting the prism unit while fixing the prism unit to the housing. It is intended to provide a camera actuator and a camera module including the same to enable a fixed role.
- one of the technical problems of the embodiment is to provide a camera actuator and a camera module including the same so that a sufficient amount of light can be secured by solving the size limitation of the lens in the lens assembly of the optical system when implementing OIS.
- one of the technical problems of the embodiment is that the size of the variable lens for driving OIS must be increased in order to increase the amount of light received for clear image quality.
- the size of the variable lens is increased, the technical contradiction that the thickness of the camera module is limited. It is intended to provide a camera actuator that can be solved and a camera module including the same.
- one of the technical problems of the embodiment is to provide a camera actuator capable of exhibiting the best optical characteristics by minimizing the occurrence of a decent or tilt phenomenon when implementing OIS, and a camera module including the same.
- one of the technical problems of the embodiment is to provide a camera actuator capable of preventing magnetic field interference with a magnet for AF or Zoom, and a camera module including the same when implementing OIS.
- one of the technical problems of the embodiment is that when a plurality of lens assemblies are driven by an electromagnetic force between a magnet and a coil when implementing AF or Zoom, a camera actuator capable of preventing magnetic field interference between magnets mounted on each lens assembly and the same is included. It is to provide a camera module that can be used.
- an embodiment is to provide a camera actuator capable of preventing detachment of a magnet and a yoke, and a camera module including the same.
- one of the technical problems of the embodiment is to provide a camera actuator capable of implementing OIS with low power consumption and a camera module including the same.
- one of the technical problems of the embodiment is to provide a camera actuator capable of preventing occurrence of friction torque when a lens is moved through zooming in the camera module, and a camera module including the same.
- one of the technical challenges of the embodiment is to prevent the occurrence of a phenomenon in which the lens decenter or the lens tilt, and the center of the lens and the central axis of the image sensor do not coincide when the lens is moved through zooming in the camera module. It is intended to provide a camera actuator and a camera module including the same.
- one of the technical problems of the embodiment is to provide a camera actuator capable of simultaneously increasing the sensitivity of a Hall sensor while increasing thrust and a camera module including the same.
- the camera actuator includes a housing; A prism unit disposed in the housing; A driving unit for tilting the prism unit; And a moving plate disposed between the housing and the prism unit, wherein the prism unit includes: a prism mover having a receiving portion; And a prism disposed in the accommodating portion of the prism mover, wherein a pulling magnet for generating attractive force with the moving plate is disposed on the prism mover, and the prism mover is formed by attractive force between the moving plate and the pulling magnet. While being supported by the housing, the moving plate is tilted based on a rotation reference axis.
- the moving plate is composed of a magnetic material.
- the moving plate includes first and second moving plates, and the second moving plate is fixedly disposed in the recess of the housing, and is composed of a magnetic material to generate an attractive force with the pulling magnet, and One moving plate is disposed between the prism mover and the second moving plate, and is supported by the housing by the attractive force.
- a plurality of first moving protrusions disposed in a first direction are disposed on one surface of the first moving plate facing the prism mover, and the first moving plate is disposed on one surface of the second moving plate facing the first moving plate.
- the prism unit is provided to enable rotational movement in the second direction based on a first virtual line formed by the plurality of first moving protrusions, and the plurality of second moving protrusions are formed.
- a rotational motion in the first direction is provided based on the second line of.
- a first recess in which the pulling magnet is disposed on an outer surface of the prism mover facing one surface of the first moving plate; And a plurality of second recesses spaced apart in the first direction about the first recess and in which the plurality of first moving protrusions are disposed.
- a plurality of first moving recesses disposed in the second direction and into which the plurality of second moving protrusions are inserted are disposed on the other surface of the first moving plate facing one surface of the second moving plate.
- a plurality of first auxiliary protrusions are disposed to be spaced apart in the second direction, and on the one surface of the second moving plate, they are disposed to be spaced apart in the first direction. And a plurality of second auxiliary protrusions.
- the prism unit has a rotation range in the second direction limited by the plurality of first auxiliary protrusions, and a rotation range in the first direction by the plurality of second auxiliary protrusions.
- the plurality of first moving protrusions and the plurality of first auxiliary protrusions on the one surface of the first moving plate are arranged in a cross shape with respect to the first area, and the first moving plate is disposed in a cross shape on the one surface of the second moving plate.
- the plurality of second moving protrusions and the plurality of second auxiliary protrusions are disposed in a cross shape based on a second region, and the first and second regions overlap the pulling magnet in a third direction.
- the camera actuator includes a housing; A prism unit disposed in the housing; A driving unit for tilting the prism unit; A first pivot plate disposed on a side wall of the housing; And a second pivot plate disposed between the first pivot plate and the prism unit, wherein the prism unit includes a pulling magnet, and the prism unit is applied to the attractive force between the pulling magnet and the first pivot plate.
- the prism unit includes a pulling magnet, and the prism unit is applied to the attractive force between the pulling magnet and the first pivot plate.
- the first pivot plate is composed of a magnetic material that generates attractive force together with the pulling magnet.
- the second pivot plate is composed of a magnetic material or a non-magnetic material.
- first pivot plate includes a plurality of first pivot protrusions
- second pivot plate includes a plurality of second pivot protrusions
- the plurality of first pivot protrusions are disposed to be spaced apart from each other in a first direction on one surface of the first pivot plate, and the plurality of second pivot protrusions may be disposed on one surface of the second pivot plate to correspond to the first direction. They are spaced apart from each other in a second orthogonal direction.
- the plurality of first pivot protrusions protrude toward the prism mover on one surface of the first pivot plate
- the plurality of second pivot protrusions protrude toward the prism mover on one surface of the second pivot plate. do.
- the prism mover may include a first recess in which the pulling magnet is accommodated; And a plurality of second recesses in which the plurality of second pivot protrusions are accommodated, wherein the first recess is disposed in a central region between the plurality of second recesses.
- the camera actuator includes a housing; A prism unit disposed in the housing; A driving unit for tilting the prism unit; A moving plate disposed between the housing and the prism unit; And a support for supporting the prism unit on the housing, wherein the moving plate includes: a first protrusion disposed on a first surface facing the prism unit in a first direction; And a second protrusion disposed on a second surface facing the housing in a second direction perpendicular to the first direction.
- the prism unit a prism mover having a receiving portion; And a prism disposed in the receiving portion of the prism mover, wherein the moving plate is disposed between the prism mover and a surface facing each other of the housing.
- first protrusion includes first and second sub-first protrusions disposed to be spaced apart in the first direction with respect to the center of the first surface of the moving plate
- second protrusion includes the And first and second sub-second protrusions disposed to be spaced apart in the second direction with respect to the center of the second surface of the moving plate.
- the prism unit is rotated in the second direction with respect to a reference axis about a virtual first line formed by the first and second sub-first protrusions, and the first and second sub-second protrusions are formed. It rotates in the first direction about the second virtual line as a reference axis.
- first protrusion may include first and second sub-first recesses disposed on the first surface and corresponding to the first and second sub-second protrusions, and disposed on the second surface, and And first and second sub-second recesses corresponding to the first and second sub-first protrusions.
- a plurality of first recesses corresponding to the first and second sub-first protrusions of the moving plate are disposed, and face the outer one surface of the prism mover.
- a plurality of second recesses corresponding to the first and second sub-second protrusions of the moving plate are disposed on one inner surface of the housing.
- the prism mover is disposed at a position corresponding to between the plurality of first recesses, and includes a third recess corresponding to the support, and the housing is between the plurality of second recesses. It is disposed at a corresponding position and includes a fourth recess corresponding to the support.
- the prism mover is disposed outside the plurality of first recesses, and includes a plurality of fifth recesses corresponding to the support, and the housing is disposed outside the plurality of second recesses And a plurality of sixth recesses corresponding to the support.
- the support portion includes a first pulling member and a second pulling member respectively disposed on the prism mover and the housing, one of the first pulling member and the second pulling member is a magnet, and the first pulling member And the other of the second pulling members is a yoke, and the prism unit and the moving plate are supported by the housing by an attractive force between the first and second pulling members.
- first pulling member is disposed in the third recess
- second pulling member is disposed in the fourth recess.
- the support portion includes the prism mover and an elastic member disposed in the housing, and the prism mover and the moving plate are supported by the housing by an elastic restoring force of the elastic member.
- the elastic member includes first and second elastic members, one end of the first and second elastic members is disposed in each of the plurality of fifth recesses, the first and second elastic members The other ends are respectively disposed in the plurality of sixth recesses.
- a virtual straight line connecting the plurality of first recesses is parallel to a virtual straight line connecting the plurality of fifth recesses.
- a virtual straight line connecting the plurality of second recesses is orthogonal to a virtual straight line connecting the plurality of sixth recesses.
- the prism unit in the state in which the ball bearings are arranged, the prism unit is tilted to the first axis or the second axis by electromagnetic force, which is the driving force of the driving unit, so that when implementing OIS, decent or tilt
- electromagnetic force which is the driving force of the driving unit
- a second moving plate in which a plurality of first moving protrusions are disposed in a first axis direction and a plurality of second moving protrusions are disposed in a second axis direction perpendicular to the first axis.
- the prism unit can be tilted to the first axis and the second axis.
- the prism unit is tilted using the moving plate including the first and second moving protrusions, thereby simplifying the structure of the camera actuator compared to the structure including the ball bearing.
- the prism unit may be tilted using one moving plate. Accordingly, it is possible to simplify the structure for tilting the prism unit by making it possible to tilt the prism in two axes using one moving plate.
- the prism unit may be tilted in two axes by using the first moving plate and the second moving plate separated from each other.
- a moving plate providing a rotation axis is separately arranged, so that stability of rotational driving of the prism unit may be achieved.
- the tilting of the prism unit toward the first axis is performed by the first moving plate, and the tilting toward the second axis is performed by the second moving plate, thereby ensuring the stability of the rotational driving of the prism unit. And, accordingly, operation reliability can be improved.
- a moving plate that serves to tilt the prism unit in multiple axes is formed of a magnetic material, so that the moving plate serves as an axis for tilting the prism unit while fixing the prism unit to the housing. It can also play a role, and there is a technical effect of reducing the number of parts and reducing the cost of parts.
- an elastic member is disposed between the housing and the prism unit, and the prism unit is tilted to the first axis or the second axis by the driving force of the driving unit while being supported by the housing by the elastic member.
- the prism unit may be tilted to the first axis or the second axis by an elastic member arranged in a first direction and/or a second direction between the housing and the prism unit. That is, by controlling the tilt to the first axis or the second axis by the electromagnetic force, which is the driving force of the driving unit, when OIS is implemented, the occurrence of a decent or tilt phenomenon can be minimized to achieve the best optical characteristics.
- the prism unit 330 is provided with a driving unit 320 stably disposed on the housing 310 to control the tilting of the prism unit 330 to the first axis or the second axis, thereby decent when implementing OIS. B.
- a driving unit 320 stably disposed on the housing 310 to control the tilting of the prism unit 330 to the first axis or the second axis, thereby decent when implementing OIS.
- the prism unit 330 is provided with a driving unit 320 to control the tilting of the prism unit 330 to the first axis or the second axis to implement OIS, with low power consumption.
- a driving unit 320 to control the tilting of the prism unit 330 to the first axis or the second axis to implement OIS, with low power consumption.
- the friction torque is reduced to reduce the frictional resistance.
- technical effects such as improvement of driving power, reduction of power consumption, and improvement of control characteristics.
- the camera actuator and the camera module including the same have a technical effect of simultaneously increasing the sensitivity of the Hall sensor while increasing thrust.
- a camera actuator capable of preventing magnetic field interference between magnets mounted on each lens assembly and a camera module including the same is provided.
- the embodiment has a technical effect of providing a camera actuator capable of preventing detachment of a magnet and a yoke, and a camera module including the same.
- FIG. 1 is a perspective view of a camera module according to an embodiment.
- FIG. 2A is a perspective view in which a case is omitted from the camera module according to the embodiment illustrated in FIG. 1.
- FIG. 2B is an exploded perspective view of the camera module according to the embodiment illustrated in FIG. 2A.
- 3A is a perspective view of a second camera actuator of a camera module according to an embodiment.
- 3B is an exploded perspective view of a second camera actuator in the first embodiment.
- 4 and 5 are perspective views of each configuration of a second camera actuator.
- 6A and 6B are diagrams illustrating a coupling relationship between a housing, a prism unit, a support part 360, and a moving plate in a second camera actuator.
- FIGS. 7A and 7B are diagrams illustrating a modified example of an arrangement position of a pulling magnet according to an embodiment.
- FIG. 8 is an exploded perspective view of a second camera actuator according to a second embodiment.
- 9A is a perspective view of a housing of a second embodiment of a second camera actuator.
- FIG. 9B is a view in which the elastic member of the support part is coupled to the housing of FIG. 9A.
- 9C is a perspective view of a prism unit of a second embodiment of a second camera actuator.
- FIG. 9D is a view in which an elastic member of a support part is coupled to the prism unit of FIG. 9B.
- 9E is a combination view of a support, a prism unit, and a housing.
- 10A and 10B are exemplary diagrams for operation of a second camera actuator according to the first and second embodiments.
- FIG. 11 is an exploded perspective view of a second camera actuator according to a third embodiment.
- FIG. 12A is a perspective view of a housing of a second camera actuator in a third embodiment.
- FIG. 12B is a perspective view of a second moving plate coupled to the housing of FIG. 12A.
- FIGS. 13A to 13C are diagrams of a prism unit of a second camera actuator according to a third embodiment.
- 14A is a front perspective view of a moving plate constituting a second camera actuator in the third embodiment.
- 14B is a rear perspective view of a moving plate constituting a second camera actuator in the third embodiment.
- 15 and 16 are diagrams illustrating a coupling relationship between a housing, a prism unit, and a moving protrusion in the second camera actuator of the third embodiment.
- 17A and 17B are exemplary diagrams for operation of a second camera actuator according to the third embodiment.
- FIG. 18 is a perspective view of a first camera actuator according to an embodiment.
- FIG. 19 is a perspective view of the camera actuator according to the embodiment shown in FIG. 18 with some components omitted.
- FIG. 20 is an exploded perspective view of the camera actuator according to the embodiment shown in FIG. 18 with some components omitted.
- FIG. 21 is a perspective view of a first guide part and a second guide part in the camera actuator according to the embodiment shown in FIG. 20.
- 22A is a perspective view of a first lens assembly in the camera actuator according to the embodiment shown in FIG. 20.
- FIG. 22B is a perspective view of the first lens assembly shown in FIG. 22A with some components removed.
- FIG. 23 is an exemplary view illustrating driving in a camera actuator according to an embodiment.
- FIG. 24 is a cross-sectional view taken along line C1-C2 in the camera actuator according to the embodiment illustrated in FIG. 11.
- 25A is an enlarged view of area S shown in FIG. 24.
- FIG. 25B is a detailed view of area S shown in FIG. 24.
- 25C is a magnetic flux data according to a separation distance between a magnet and a position detection sensor in Examples and Comparative Examples.
- 26A is a perspective view of the first driving unit 116 in the camera actuator according to the embodiment.
- 26B is magnetic flux density distribution data in a comparative example.
- 26C is magnetic flux density distribution data in Examples.
- 27 is an exemplary diagram of an integrated body in a camera module according to another embodiment.
- FIG. 28 is a perspective view of a mobile terminal to which a camera module according to an embodiment is applied.
- 29 is a perspective view of a vehicle to which a camera module according to an embodiment is applied.
- first, second, A, B, (a), and (b) may be used in describing the constituent elements of the embodiment of the present invention. These terms are only for distinguishing the component from other components, and are not limited to the nature, order, or order of the component by the term. And, when a component is described as being'connected','coupled' or'connected' to another component, the component is not only directly connected, coupled or connected to the other component, but also the component and The case of being'connected','coupled', or'connected' due to another element between the other elements may also be included.
- top (top) or bottom (bottom) when it is described as being formed or disposed on the “top (top) or bottom (bottom)” of each component, the top (top) or bottom (bottom) is one as well as when the two components are in direct contact with each other. It also includes a case in which the above other component is formed or disposed between the two components.
- upper (upper) or lower (lower) when expressed as "upper (upper) or lower (lower)", the meaning of not only an upward direction but also a downward direction based on one component may be included.
- the first direction may mean the x-axis direction shown in the drawings, and the second direction may be a different direction from the first direction.
- the second direction may mean a y-axis direction shown in the drawing in a direction perpendicular to the first direction.
- 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 direction perpendicular to the x-axis and y-axis directions in the z-axis direction of the drawing.
- FIG. 1 is a perspective view of a camera module according to an embodiment
- FIG. 2A is a perspective view of the camera module of FIG. 1 with some components omitted
- FIG. 2B is an exploded perspective view of the camera module of FIG. 2.
- the camera module 1000A according to the embodiment may include one or a plurality of camera actuators.
- the camera module 1000A according to the embodiment may include a first camera actuator 100 and a second camera actuator 300.
- the embodiment may include a case 100c that protects the first camera actuator 100 and the second camera actuator 300.
- the first camera actuator 100 may be electrically connected to the first circuit board 410.
- the first camera actuator 100 may support one or a plurality of lenses and may perform an auto focusing or zoom function by moving the lenses up and down in response to a control signal from a predetermined controller.
- the second camera actuator 300 may be electrically connected to a second circuit board (not shown).
- the second circuit board may be electrically connected to the first circuit board 410.
- the second camera actuator 300 may be an OIS (Optical Image Stabilizer) actuator. In this case, light incident from the outside may be incident on the second camera actuator 300.
- the light incident on the second camera actuator 300 may be incident on the first camera actuator 100 by changing a path of light, and the light passing through the first camera actuator 100 is an optical sensor ( Not shown).
- the OIS actuator which is the second camera actuator 300
- the first camera actuator 100 will be described.
- 3A is a perspective view of a second camera actuator of a camera module according to an embodiment.
- FIG. 3B is an exploded perspective view of the second camera actuator in the second embodiment.
- the second camera actuator 300 includes a housing 310, a driving unit 320 disposed on the housing 310, and a prism disposed on the driving unit 320. It may include a unit 330.
- the second camera actuator 300 may further include a cover member 301.
- the cover member 301 includes an accommodation 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 first camera actuator 100, and a rear surface opposite to the front surface are opened, and a prism unit ( The optical movement path 330 may be provided.
- 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 driving part 320, the prism unit 330, and the like, and may support the components.
- the prism unit 330 to be described later may be moved in a first direction and/or a second direction by the driving unit 320.
- the cover member 301 may fix the housing and the driving unit 320 at a set position, thereby providing a more accurate light movement path.
- the cover member 301 allows the prism unit 330 to be stably supported by the housing 310 by the support part 360, while the housing 310 is moved to the outside of the second camera actuator 300. You can prevent it from escaping.
- the cover member 301 may be omitted according to an arrangement relationship of the housing 310, the driving part 320, and the prism unit 330.
- 4 and 5 are perspective views of each configuration of a second camera actuator.
- the second camera actuator 300 includes the housing 310, the driving part 320, the prism unit 330, the moving plate 350, and the support parts 360 and 360A. It may include.
- the driving unit 320 may include a driving unit circuit board 321, a plurality of coil units 323, and a plurality of magnets 325
- the prism unit 330 includes a prism 331 and the prism mover. (333) may be included.
- the support part 360 in the first embodiment may include a first pulling member 361 and a second pulling member 362, and of the first pulling member 361 and the second pulling member 362
- the prism unit 330 can be supported in a pressurized state by the housing 310 by manpower.
- the support part 360A in the second embodiment includes at least two elastic members 361A and 362A, and the prism unit 330 is formed in the housing 310 by the elastic force of the two elastic members 361A and 362A. To be supported in a pressed state.
- the prism unit 330 is provided with a driving unit 320 stably disposed on the housing 310 to control the tilting of the prism unit 330 to the first axis or the second axis.
- a driving unit 320 stably disposed on the housing 310 to control the tilting of the prism unit 330 to the first axis or the second axis.
- the prism unit 330 is provided with a driving unit 320 to control the tilting of the prism unit 330 to the first axis or the second axis to implement OIS, thereby implementing OIS with low power consumption.
- the second camera actuator 300 may be divided into a first embodiment and a second embodiment.
- the first and second embodiments may be classified by the support parts 360 and 360A. That is, the support part 360 in the first embodiment pressurizes the prism unit 330 to the housing 310 by using an attractive force generated by the first pulling part 361 and the second pulling part 362. Further, the support part 360A in the second embodiment presses the prism unit 330 against the housing 310 using at least two elastic members 361A and 362A.
- FIG. 4A is a perspective view of the driving unit 320 of the second camera actuator 300
- FIG. 4B is an exploded perspective view of the driving unit 320 of the second camera actuator 300.
- the driving 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 supply (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 first to third coil units 323a, 323b, and 323c may be spaced apart from each other.
- the driving unit circuit board 321 may have a'U' shape
- the first coil unit 323a and the second coil unit 323b are the driving unit circuit board 321 facing each other. It may be disposed on the first and second sides of each.
- 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 a region corresponding to the coil unit 323.
- the first magnet 325a may be disposed on an area corresponding to the first coil unit 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 driving 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, which are disposed adjacent to one coil unit selected from the first coil unit 323a and the second coil unit 323b. It may include a second Hall sensor HS2 disposed adjacent to the coil unit 323c.
- 4C and 4D are perspective views of the housing 310 of the first embodiment of the second camera actuator 300.
- the housing 310 may include an accommodation space for accommodating the prism unit 330.
- the housing 310 may include a plurality of inner surfaces.
- the housing 310 may have a first inner surface 310S1 corresponding to a first surface of the driver circuit board 321, and a second inner surface 310S1 corresponding to the second surface of the driving 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 includes a first inner surface 310S1 corresponding to the first coil unit 323a, a second inner surface 310S2 corresponding to the second coil unit 323b, and the third nose. It may include a third inner surface 310S3 corresponding to the portion 323c.
- the housing 310 includes 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. I 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 penetrating 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 penetrating through the third inner surface 310S3 and an 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.
- the first housing hole 311H1 may have a size and shape corresponding to the first coil part 323a. Accordingly, the first coil part 323a may be disposed partially or entirely inserted into the first housing hole 311H1.
- the second housing hole 311H2 may be disposed in a region corresponding to the second coil part 323b.
- the second housing hole 311H2 may have a size and shape corresponding to the second coil part 323b. Accordingly, the second coil part 323b may be partially or entirely inserted into the second housing hole 311H2 to be disposed.
- the third housing hole 311H3 may be disposed in a region corresponding to the third coil part 323c.
- the third housing hole 311H3 may have a size and shape corresponding to the third coil part 323c. Accordingly, the third coil part 323c may be disposed partially or entirely inserted into the third housing hole 311H3.
- the housing 310 may include at least one recess.
- a first recess 313R may be disposed on at least one inner surface of the housing 310.
- the first recess 313R may be disposed on the fourth inner surface 310S4 of the housing 310.
- the groove may have a concave shape in the outer surface direction (z-axis direction) of the housing 310 on the fourth inner surface 310S4.
- the first recess 313R of the housing 310 may provide a space in which the moving plate 350 is disposed.
- the recess 313R may provide a space in which a second moving protrusion (described later) disposed on the second surface of the moving plate 350 is disposed.
- the first recesses 313R may be disposed to be spaced apart in a second direction (y-axis direction) with respect to the center of the inner surface. That is, the first recess 313R is a first sub that is disposed to be spaced apart on the +y axis with respect to the center of the inner surface, and a second sub is disposed to be spaced apart from the -y axis to the first recess (313R1).
- a first recess 313R2 may be included.
- a second recess 315R may be disposed on an outer surface of the housing 310 that is a surface opposite to the inner surface on which the first recess 313R is disposed.
- the second recess 315R may provide a space in which one component of the support part 360 is disposed.
- a space in which the second pulling member 362 is disposed may be provided in the second recess 315R.
- the second recess 315R may be disposed at a position corresponding to an area between the first recesses 313R. That is, the second recesses 315R may be aligned in the z-axis direction from the center region between the first recesses 313R.
- 4E to 4G are views of the prism unit 330 of the first embodiment of the second camera actuator 300.
- the prism unit 330 may be disposed in the housing 310.
- the prism unit 330 may be disposed in the accommodation space of the housing 310.
- the prism unit 330 may include a prism 331 and a prism mover 333 disposed on the prism 331.
- the prism 331 may be a right angle prism.
- the prism 331 may reflect a direction of light incident from the outside. That is, the prism 331 may change a path of light incident on the second camera actuator 300 from the outside to the first camera actuator 100.
- the prism mover 333 may be disposed on the prism 331.
- the prism mover 333 may be disposed surrounding the prism 331. At least one side of the prism mover 333 may be open, and may include an accommodation space therein.
- the prism mover 333 may have a structure in which a plurality of outer surfaces connected to each other are opened.
- the prism mover 333 may have a structure in which an outer surface corresponding to the prism 331 is open, and may include an accommodation space defined as a first space 335 therein.
- the prism mover 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 prism 331.
- the inner surface 335S of the first space 335 may directly contact the prism 331.
- the prism mover 333 may include a stepped jaw 326.
- the stepped jaw 326 may be disposed in the first space 335.
- the stepped jaw 326 may serve as a guide and/or a seating portion for the prism 331.
- a protrusion corresponding to the stepped jaw 326 may be formed outside the prism 331.
- the prism 331 may be disposed in the first space 335 by guiding the protruding portion to the stepped jaw 326 of the prism mover 333. Accordingly, the prism mover 333 may effectively support the prism 331.
- the prism 331 may be seated at a set position and may have an improved alignment characteristic within the prism mover 333.
- the prism unit 330 may include a plurality of outer surfaces.
- the prism mover 333 of the prism unit 330 may include a plurality of outer surfaces.
- the prism mover 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, 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 may be included.
- the prism mover 333 may include a plurality of recesses.
- the prism mover 333 may include a fourth recess 338R and a fifth recess 339R. That is, the fourth recess 338R may be disposed in an area between the fifth recesses 339R.
- the fourth recess 338R may be disposed in a central region of the fourth outer surface 330S4. In detail, the fourth recess 338R may overlap the center of the fourth outer surface 330S4 in the z-axis direction.
- the fourth recess 338R may be disposed to face the recess 315R of the housing 310.
- the third recess 338R may be disposed in a region overlapping the center of the recess 315R of the housing 310 in the z-axis direction.
- the fourth recess 338R may provide a space in which one component of the support part 360 is disposed.
- a first pulling member 361 which is a component of the support part 360, may be disposed in the fourth recess 338R.
- the first pulling member 361 may be a magnet, or a yoke.
- the second pulling member 362 may be a yoke.
- the second pulling member 362 may be a magnet.
- the fourth recess 338R may be disposed to face the second recess 315R disposed in the housing 310. That is, the third recess 338 may overlap the second recess 315R of the housing 310 in the z-axis direction.
- an adhesive member (not shown) may be applied to the fourth recess 338R.
- the first pulling member 361 may be fixed and disposed in the fourth recess 338R by the adhesive member.
- a plurality of fifth recesses 339R may be disposed on the fourth outer surface 330S4.
- the fifth recess 339R may be provided in the same size as the fourth recess 338R or may be provided in different sizes.
- the plurality of fifth recesses 339R may be disposed at a position adjacent to the fourth recess 338R and spaced apart from the fourth recess 338R.
- the fifth recess 339R may be disposed to be spaced apart from the fourth recess 338R.
- the depth of the fourth recess 338R may be different from the depth of the fifth recess 319R.
- the plurality of fifth recesses 319R may have the same depth.
- the fifth recess 319R may be disposed to be spaced apart from each other in a first direction around the fourth recess 338R.
- the plurality of fifth recesses 339R may include a first sub-fifth recess 339R1 and a second sub-third recess spaced apart from the fourth recess 338R in a first direction (x-axis direction). It may include 5 recesses (339R2).
- the fifth recess 319R may provide a space into which the first moving protrusion of the moving plate 350 disposed on one surface of the moving plate 350 is inserted. At this time, the fourth recess 319R may be disposed at different positions in the z-axis direction from the first recess 313R of the housing.
- the prism mover 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 an outer surface of the prism mover 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. Further, 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. In addition, 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 separated from each other.
- the prism mover 333 includes a fourth recess 338R in which the first pulling member 361 is disposed on an outer surface, and a plurality of the prism movers 333 are disposed spaced apart from the fourth recess 338R in the x-axis direction. It may include a fifth recess (339R).
- FIG. 5A is a front perspective view of a moving plate constituting a second camera actuator
- FIG. 5B is a rear perspective view of a moving plate constituting a second camera actuator.
- the moving plate 350 may include a first surface 351S1 and a second surface 352S1.
- a plurality of moving protrusions may be provided on one surface of the moving plate 350 to provide a rotation axis for rotating or tilting the prism unit 330 in a second direction (eg, vertical direction or y-axis direction). .
- a plurality of moving protrusions may be provided on the other surface of the moving plate 350 to provide a rotation axis for rotating or tilting the prism unit 330 in a first direction (eg, a left-right direction or an x-axis direction).
- a first direction eg, a left-right direction or an x-axis direction
- the ends of the moving protrusions respectively disposed on the first and second surfaces 351S1 and 352S1 of the moving plate 350 have a round semicircular shape, but the present invention is not limited thereto. That is, the ends of the moving protrusions respectively disposed on the first and second surfaces 351S1 and 352S1 of the moving plate 350 may have a shape of a sharp triangular pyramid as well as
- rotation of the prism unit 330 in the first direction is made to a plurality of moving protrusions disposed on the other surface of the moving plate 350, and the rotation in the second direction is the moving plate. It is made by a plurality of moving projections disposed on one side of the 350.
- the moving plate 350 may be disposed between the housing 310 and the prism unit 330.
- the moving plate 350 is disposed between the housing 310 and the prism unit 330, and is pressed by the support part 360 to be pressed and supported by the housing 310 together with the prism unit 330. I can.
- the moving plate 350 includes a plurality of moving protrusions on both sides.
- the moving plate 350 may provide an external driving force, for example, a rotation axis with respect to a moving direction of the prism unit 330 that is moved by the coil unit 323 and the magnet 325.
- the moving plate 350 may include a first surface 351S1.
- the first surface 351S1 may be a surface facing the fourth outer surface 330S4 of the prism unit 330.
- a first moving protrusion 351P1 and a first recess 351P2 may be disposed on the first surface 351S1 of the moving plate 350.
- the first moving protrusion 351P1 functions as a rotation shaft for rotating the prism unit 330 in a second direction.
- the first recess 351P2 may be a concave groove formed in the first surface 351S1 as the second moving protrusion 352P1 is formed in the second surface 352S1 of the moving plate 350.
- the moving plate 350 may be a flat plate-shaped member, and first and second moving protrusions 351P1 and 352P1 are formed on both surfaces of the moving plate 350, respectively. Further, as the first and second moving protrusions 351P1 and 352P1 are formed, first and second recesses 351P2 and 352P2 corresponding thereto may be formed on opposite surfaces thereof.
- the first moving protrusions 351P1 may be disposed to be spaced apart in a first direction (x-axis direction) with respect to a center area of the first surface 351S1 of the moving plate 350.
- the central region of the first surface 351S1 may be a region facing the first pulling member 361 fixedly disposed on the prism unit 330.
- the central region of the first surface 351S1 may be a region overlapping the first pulling member 361 fixedly disposed on the prism unit 330 in the z-axis direction.
- first moving protrusions 351P1 are disposed to be spaced apart in the x-axis direction of the central region. That is, the first moving protrusion 351P1 is spaced apart from the center area in the +x axis direction and the first sub-first moving protrusion part (351Pa) disposed to be spaced apart in the -x axis direction with respect to the center area. It may include a second sub-first moving protrusion 351Pb disposed.
- the first sub-first moving protrusion 351Pa may correspond to the first sub-fifth recess 339R1. That is, at least a portion of the first sub-first moving protrusion 351Pa may be disposed in the first sub-fifth recess 339R1. That is, at least a portion of the first sub-first moving protrusion 351Pa may be inserted into the first sub-fifth recess 339R1. In this case, the height of the first sub-first moving protrusion 351Pa may be greater than the depth of the first sub-fifth recess 319R1.
- the first surface 351S1 of the moving plate 350 is the prism It may be spaced apart from the fourth outer surface 330S4 of the mover 333 by a predetermined interval.
- the second sub-first moving protrusion 351Pb may correspond to the second sub-fifth recess 339R2. That is, at least a portion of the second sub-first moving protrusion 351Pb may be disposed in the second sub-fifth recess 339R2. That is, at least a part of the second sub-first moving protrusion 351Pb may be inserted into the second sub-fifth recess 339R2. In this case, the height of the second sub-first moving protrusion 351Pb may be greater than the depth of the second sub-fifth recess 339R2.
- the first surface 351S1 of the moving plate 350 is the prism It may be spaced apart from the fourth outer surface 330S4 of the mover 333 by a predetermined interval.
- the first sub-first moving protrusion 351Pa and the second sub-first moving protrusion 351Pb are arranged in the x-axis direction based on the center of the moving plate 350, and accordingly, the prism unit 330 It provides a rotating shaft for rotating in the second direction. That is, the prism unit 330 is in the second direction (up-down direction) based on a virtual first line formed by the first sub-first moving protrusion 351Pa and the second sub-first moving protrusion 351Pb. ) Can be provided to enable rotational motion.
- the first recesses 351P2 may be disposed to be spaced apart in a second direction (y-axis direction) with respect to the center region of the first surface 351S1 of the moving plate 350.
- the central region of the first surface 351S1 may be a region facing the first pulling member 361 fixedly disposed on the prism unit 330.
- the central region of the first surface 351S1 may be a region overlapping the first pulling member 361 fixedly disposed on the prism unit 330 in the z-axis direction.
- first recesses 351P2 are disposed to be spaced apart in the y-axis direction of the central region. That is, the first recesses 351P2 are spaced apart from the first sub-first recesses 351Pc in the +y-axis direction with respect to the central region and the -y-axis direction with respect to the central region. It may include the disposed second sub-first recess 351Pd.
- the first sub-first recess 351Pc and the second sub-first recess 351Pd may correspond to a second moving protrusion 351P1 formed on the second surface 352S1 of the moving plate 350. .
- the moving plate 350 may include a second surface 352S1.
- the second surface 352S1 may be a surface facing the fourth inner surface 310S4 of the housing 310.
- a second moving protrusion 352P1 and a second recess 352P2 may be disposed on the second surface 352S1 of the moving plate 350.
- the second moving protrusion 352P1 functions as a rotation shaft for rotating the prism unit 330 in the first direction.
- the second moving protrusions 352P1 may be disposed to be spaced apart in a second direction (y-axis direction) with respect to the central region of the second surface 352S1 of the moving plate 350.
- the central region of the second surface 352S1 faces the first pulling member 361 fixedly disposed on the prism unit 330 or the second pulling member 362 fixedly disposed on the housing 310. It can be a viewing area.
- the central region of the second surface 352S1 may be a region overlapping the first pulling member 361 fixedly disposed on the prism unit 330 in the z-axis direction.
- the second moving protrusions 352P1 are disposed to be spaced apart 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 and the -y-axis direction is spaced apart from the center region in the +y-axis direction.
- a second sub second moving protrusion 352Pb may be disposed.
- the first sub second moving protrusion 352Pa and the second sub second moving protrusion 352Pb are a first sub-first recess 313R1 and a second sub-first recess 313R2 of the housing 310 Can correspond to
- first sub second moving protrusion 352Pa and the second sub second moving protrusion 352Pb are inserted into the first sub-first recess 313R1 and the second sub-first recess 313R2. I can.
- first sub second moving protrusion 352Pa and the second sub second moving protrusion 352Pb are arranged in the y-axis direction based on the center of the moving plate 350, and accordingly, the prism unit 330 It provides a rotating shaft for rotating in this first direction. That is, the prism unit 330 is in the first direction (left-right direction) based on a virtual second line formed by the first sub-second moving protrusion 352Pa and the second sub-second moving protrusion 352Pb. ) Can be provided to enable rotational motion.
- the second recesses 352P2 may be disposed to be spaced apart in a first direction (x-axis direction) with respect to a central region of the second surface 352S1 of the moving plate 350.
- the central region of the second surface 352S1 may be a region facing the first pulling member 361 fixedly disposed on the prism unit 330.
- the central region of the second surface 352S1 may be a region overlapping the first pulling member 361 fixedly disposed on the prism unit 330 in the z-axis direction.
- the second recesses 352P2 are disposed to be spaced apart in the x-axis direction of the central region. That is, the second recess 352P2 is spaced apart from the first sub-second recess 352Pc in the -x-axis direction with respect to the central region and the +x-axis direction with respect to the central region. It may include a second sub-second recess 352Pd disposed.
- 6A and 6B are diagrams illustrating a coupling relationship between a housing, a prism unit, a support part 360, and a moving plate in a second camera actuator.
- the second camera actuator may include a moving plate 350.
- support portions 360 for generating attractive force may be disposed on surfaces facing each other between the housing 310 and the prism unit 330. That is, the first pulling member 361 may be disposed on one surface of the prism unit 330 (more specifically, the prism mover).
- a second pulling member 362 may be disposed on one surface of the housing 310 facing one surface of the prism unit 330.
- the first pulling member 361 may be a magnet, or a yoke differently.
- the second pulling member 362 may be a yoke.
- the second pulling member 362 may be a magnet.
- the first pulling member 361 may be a magnet
- the second pulling member 362 may be a yoke.
- the horizontal width of the yoke may be greater than the horizontal width of the magnet. Accordingly, the first pulling member 361 and the second pulling member 362 may allow the prism unit 330 to have a restoring force to an initial position (a center position before tilting up, down, left and right).
- the prism unit 330 may be pressed against the housing 310 while the moving plate 350 is inserted between the prism unit 330 and the housing 310 by the support part 360. Accordingly, the prism unit 330 and the moving plate 350 may be supported on the housing 310.
- Centers of each of the first pulling member 361, the moving plate 350, and the second pulling member 362 may overlap each other in the z-axis direction.
- the first moving protrusion 351P1 of the moving plate 350 may be inserted into the fifth recess 339R of the prism unit 330.
- the first sub-first moving protrusion 351Pa may be inserted into the first sub-fifth recess 339R1, and the second sub-first moving protrusion 351Pb is the second sub-fifth recess 339R2 Can be inserted within.
- first sub-second moving protrusion 352Pa and the second sub-second moving protrusion 352Pb include a first sub-first recess 313R1 and a second sub-first recess of the housing 310 ( 313R2).
- first sub second moving protrusion 352Pa and the second sub second moving protrusion 352Pb are arranged in the y-axis direction based on the center of the moving plate 350, and accordingly, the prism unit 330 It provides a rotating shaft for rotating in this first direction. That is, the prism unit 330 is in the first direction (left-right direction) based on a virtual second line formed by the first sub-second moving protrusion 352Pa and the second sub-second moving protrusion 352Pb. ) Can be provided to enable rotational motion.
- the first moving protrusions disposed on one surface of the moving plate 350 serve as a rotation axis for rotating the prism unit 330 in a second direction corresponding to the y-axis, and are located on the other surface of the moving plate 350.
- the arranged second moving protrusions serve as a rotation shaft for rotating the prism unit 330 in a first direction corresponding to the x-axis.
- the first to third magnets 325a, 325b, 325c disposed on the prism mover 333 and the first to third coil units 323a, 323b, 323c By controlling the tilting of the prism unit 330 to the first axis or the second axis, there is a technical effect of minimizing the occurrence of decent or tilting phenomenon when implementing OIS to produce the best optical characteristics. have.
- the prism unit 330 in a state in which the moving plate 350 is disposed between the housing 310 and the prism unit 330, the prism unit 330 is driven by the driving force of the first shaft or By controlling the tilt to the second axis, the best optical characteristics can be achieved by minimizing the occurrence of decent or tilt when implementing OIS, and there are technical effects that can implement ultra-slim and ultra-small camera actuators.
- the second pulling member 362 may be fixedly disposed on the housing 310 as described above.
- the embodiment is not limited thereto, and the arrangement position of the second pulling member 362 may be changed as long as the second pulling member 362 overlaps the first pulling member 361 in the z-axis direction.
- FIGS. 7A and 7B are diagrams illustrating a modified example of an arrangement position of a second pulling member according to an embodiment.
- the second pulling member 362 is disposed on the housing 310.
- the second pulling member 362 is fixedly disposed in the second recess 315R of the housing 310.
- the second pulling member 362 may be disposed on the cover member 301.
- the second pulling member 362 may be attached to the cover member 301.
- the second pulling member 362 may be fixedly disposed on the inner side of the cover member 301 overlapping the first pulling member 361 in the z-axis direction.
- the second pulling member 362 may be disposed on the driver circuit board 321 rather than the housing 310 and the cover member 301.
- the driver circuit board 321 has a'C' shape.
- the driver circuit board 321 may have a shape in which front, rear, and upper surfaces are open.
- the driver circuit board 321 may further include a region corresponding to the rear surface, that is, a substrate region disposed between the housing 310 and the cover member 301.
- the region may be disposed between the housing 310 and the cover member 301.
- the second pulling member 362 may be attached to the substrate region.
- the second pulling member 362 may be disposed in various positions according to exemplary embodiments.
- the second pulling member 362 may be disposed on the inner surface of the housing 310 facing the prism unit.
- the second pulling member 362 may be disposed on the outer surface of the housing 310.
- the second pulling member 362 may be exposed through the opening of the housing 310 and disposed on the inner surface of the cover member 301.
- the second pulling member 362 may be disposed on the driver circuit board 321 surrounding the outer surface of the housing 310.
- FIG. 8 is an exploded perspective view of a second camera actuator according to a second embodiment.
- the second camera actuator includes a housing 310, a driving unit 320 disposed on the housing 310, and a prism unit 330 disposed on the driving unit 320. It may include.
- the second camera actuator 300 may further include a cover member 301.
- the second camera actuator 300 may further include a support part 360A.
- the support part 360A in the second embodiment includes at least two elastic members 361A and 362A, and the prism unit 330 is the housing 310 by the elastic force of the two elastic members 361A and 362A. To be supported in a pressed state.
- the prism unit 330 is pressed against the housing 310 by the attractive force generated by the first pulling member 361 and the second pulling member 362 To be supported.
- the support part 360A in the second embodiment enables the prism unit 330 to be supported in a state pressed against the housing 310 by the elastic force of the elastic members 361A and 362A.
- the housing 310 and the prism mover 333 in the first embodiment include a recess into which the first pulling member 361 and the second pulling member 362 are inserted and seated.
- the housing 310 and the prism mover 333 according to the second embodiment may include recesses into which the elastic members 361A and 362A are inserted and fixed.
- first embodiment a distinction between the first embodiment and the second embodiment lies in a pressurization method of pressing the prism unit 330 against the housing 310.
- FIG. 9A is a perspective view of the housing 310 of the second embodiment of the second camera actuator 300
- FIG. 9B is a view in which an elastic member of the support part is coupled to the housing of FIG. 9A.
- the housing 310 may include an accommodation space for accommodating the prism unit 330.
- the housing 310 may include a plurality of inner surfaces.
- the housing 310 may have a first inner surface 310S1 corresponding to a first surface of the driver circuit board 321, and a second inner surface 310S1 corresponding to the second surface of the driving 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 includes a first inner surface 310S1 corresponding to the first coil unit 323a, a second inner surface 310S2 corresponding to the second coil unit 323b, and the third nose. It may include a third inner surface 310S3 corresponding to the portion 323c.
- the housing 310 may include at least one recess.
- a first recess 313R may be disposed on at least one inner surface of the housing 310.
- the first recess 313R may be disposed on the fourth inner surface 310S4 of the housing 310.
- the groove may have a concave shape in the outer surface direction (z-axis direction) of the housing 310 on the fourth inner surface 310S4.
- the first recess 313R of the housing 310 may provide a space in which the moving plate 350 is disposed.
- the recess 313R may provide a space in which a second moving protrusion (described later) disposed on the second surface of the moving plate 350 is disposed.
- the first recesses 313R may be disposed to be spaced apart in a second direction (y-axis direction) with respect to the center of the inner surface. That is, the first recess 313R is a first sub that is disposed to be spaced apart on the +y axis with respect to the center of the inner surface, and a second sub is disposed to be spaced apart from the -y axis to the first recess (313R1).
- a first recess 313R2 may be included.
- housing 310 may further include a second recess 317R.
- the second recess 317R may provide a space in which the support part 360A is disposed.
- the second recess 317R may include a plurality of sub-second recesses disposed to be spaced apart from each other in a first direction about a central region of the fourth inner surface 310S4 of the housing 310.
- the second recesses 317R may be disposed outside the first recesses 313R, rather than in an area between them.
- a virtual straight line connecting the first recess 313R of the housing 310 may be orthogonal to a virtual straight line connecting the second recess 317R.
- the second recess 317R includes a first sub second recess 317R1 spaced apart from the -x axis with respect to the central region, and a second sub recess 317R1 spaced apart from the center region by a +x axis.
- a second recess 317R2 may be included.
- the first sub-second recess 317R1 may be disposed adjacent to the second inner side surface 310S2 of the housing 310.
- the second sub-second recess 317R2 may be disposed adjacent to the third inner surface 310S3 of the housing 310.
- the support part 360A may include a first elastic member 361A and a second elastic member 362A.
- first elastic member 361A and the second elastic member 362A of the support part 360A may be coupled to the housing 310.
- first elastic member 361A may be fixed and disposed in the first sub-second recess 317R1.
- second elastic member 362A may be fixed and disposed in the second sub-second recess 317R2.
- FIG. 9C is a perspective view of the prism unit 330 of the second embodiment of the second camera actuator 300
- FIG. 9D is a view in which an elastic member of the support is coupled to the prism unit 330 of FIG. 9B
- FIG. 9E Is a connection diagram of the support, prism unit and housing.
- the prism unit 330 may be disposed within the housing 310.
- the prism unit 330 may be disposed in the accommodation space of the housing 310.
- the prism unit 330 may include a prism 331 and a prism mover 333 disposed on the prism 331.
- the prism unit 330 may include a plurality of outer surfaces.
- the prism mover 333 of the prism unit 330 may include a plurality of outer surfaces.
- the prism mover 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, 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 may be included.
- the prism mover 333 may include a plurality of recesses.
- the prism mover 333 may include a fourth recess 338RA and a fifth recess 339R.
- the virtual straight line connecting the fourth recess 338RA may be parallel to the virtual straight line connecting the fifth recess 339R.
- the fourth recess 338RA may be disposed outside the fifth recess 339R, not in an area between the fifth recesses 339R.
- a plurality of fifth recesses 339R may be disposed on the fourth outer surface 330S4.
- the fifth recess 339R may be disposed to be spaced apart in a first direction around a central region of the fourth outer surface 330S4.
- the plurality of fifth recesses 339R may include first sub-fifth recesses 339R1 spaced apart in a first direction (x-axis direction) with respect to a central area of the fourth outer surface 330S4, and A second sub-fifth recess 339R2 may be included.
- the fifth recess 319R may provide a space into which the first moving protrusion of the moving plate 350 disposed on one surface of the moving plate 350 is inserted.
- the fourth recess 319R may be disposed at different positions in the z-axis direction from the first recess 313R of the housing.
- a fourth recess 338RA may be disposed on a virtual first line connecting the first sub-fifth recess 339R1 and the second sub-fifth recess 339R2.
- the fourth recess 338RA may provide a space in which the first elastic member 361A and the second elastic member 362A are disposed. That is, the fourth recess 338RA includes the first sub-fourth recess 338R1 and the second sub-fifth recess 339R2 disposed adjacent to the first sub-fifth recess 339R1 A second sub-fourth recess 338R2 disposed adjacent to each other may be included.
- the first sub-fourth recess 338R1 of the prism mover 333 may correspond to the first sub-second recess 317R1 of the housing 310. That is, the first sub-fourth recess 338R1 may be disposed to face the first sub-second recess 317R1 of the housing 310 in a z-axis direction.
- the second sub-fourth recess 338R2 of the prism mover 333 may correspond to the second sub-second recess 317R2 of the housing 310. That is, the second sub-fourth recess 338R2 may be disposed to face the second sub-second recess 317R2 of the housing 310 in a z-axis direction.
- the other end of the first elastic member 361A having one end inserted into the first sub second recess 317R1 of the housing 310 is the first sub fourth recess of the prism mover 333 It may be fixed and disposed within (338R1).
- the other end of the second elastic member 362A having one end inserted into the second sub second recess 317R2 of the housing 310 is the second sub fourth recess of the prism mover 333 It may be fixed and disposed within (338R2).
- first elastic member 361A and the second elastic member 362A may be coupled to the prism mover 333 and the housing 310, respectively.
- the prism unit 330 may be pressed and supported by the housing 310 by the elastic force of the first elastic member 361A and the second elastic member 362A.
- a moving plate 350 is disposed between the prism unit 330 and the housing 310.
- the moving plate 350 may be disposed between the prism unit 330 and the housing 310 through the following method.
- the first elastic member 361A and the second elastic member 362A are coupled to the housing 310 and the prism unit 330, respectively.
- the moving plate 350 After pulling the prism unit 330 in the z-axis direction opposite to the housing 310, the moving plate 350 may be inserted into the space between the prism unit 330 and the housing 310. In addition, after the moving plate 350 is fitted, the moving plate 350 is formed by the elastic restoring force of the first elastic member 361A and the second elastic member 362A, so that the housing 310 and the prism unit ( It may be supported by the housing 310 while the moving protrusion is fitted in the recess of 330.
- 10A and 10B are exemplary diagrams for operation of a second camera actuator according to an embodiment.
- the prism unit 330 may control tilting to the first axis or the second axis by the driving force of the driving unit 320.
- the prism unit 330 performs a rotational motion in a second direction about a reference axis based on a first virtual line L1 formed by the first moving protrusion 351P1 of the moving plate 350. It can be provided as possible.
- the driving unit 320 may rotate the prism unit 330 in the vertical direction.
- the prism unit 330 may be tilted downward with respect to the first line L1 as a reference axis. That is, the prism unit 330 may be tilted at a predetermined angle in the vertical direction based on the first line L1. Accordingly, a moving path of light incident on the prism unit 330 may be controlled.
- the prism unit 330 rotates in a first direction about a virtual second line L2 formed by the second moving protrusion 352P1 of the moving plate 350. This may be possible.
- the driving unit 320 may rotate the prism unit 330 in the left and right directions.
- the prism unit 330 may be tilted in a horizontal direction with respect to the second line L2 as a reference axis. That is, the prism unit 330 may be tilted at a predetermined angle in the left-right direction based on the second line L2. Accordingly, a moving path of light incident on the prism unit 330 may be controlled.
- FIG. 11 is an exploded perspective view of a second camera actuator according to a third embodiment.
- the second camera actuator according to the third embodiment includes a plurality of moving plates.
- a moving protrusion may be formed on the plurality of moving plates to provide different rotation axes. That is, in the first embodiment, the moving protrusions for the first axis and the second axis are both formed on one moving plate, but in the third embodiment, the first moving plate and the second axis are formed with moving protrusions for the first axis.
- Each of the second moving plates in which the moving protrusions are formed may be included.
- the support portion includes a plurality of pulling members, and in the second embodiment, a plurality of elastic members are included.
- one of the plurality of moving plates may be used as the support. This will be described in detail.
- the second camera actuator 300 includes a housing 310, a driving unit 320 disposed on the housing 310, and a prism unit 330 disposed on the driving unit 320. I can. Meanwhile, in the description of the second camera actuator of the third embodiment, only portions different from the first and second embodiments will be described below.
- the second camera actuator 300 may include the housing 310, the driving unit 320, the prism unit 330, a moving plate 350, and a pulling magnet 360.
- the driving unit 320 in the third embodiment has substantially the same structure as the driving unit in the first embodiment, a detailed description thereof will be omitted.
- FIG. 12A is a perspective view of a housing of a second camera actuator according to a third embodiment
- FIG. 12B is a perspective view of a second moving plate coupled to the housing of FIG.
- 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 in the outer surface direction (z-axis direction) of the housing 310 on the fourth inner surface 310S4.
- the recess 313R of the housing 310 may provide a space in which the moving plate 350 is disposed.
- the recess 313R may provide a space in which the second moving plate 352 of the moving plate 350 is disposed.
- an adhesive member (not shown) may be disposed in the recess 313R.
- the second moving plate 352 may be fixed to and disposed in the recess 313R of the housing 310 by the adhesive member.
- the second moving plate 352 disposed in the recess 313R may also be used as a support for pressing and supporting the prism unit against the housing.
- FIGS. 13A to 13C are views of a prism unit of a second camera actuator according to a third embodiment.
- a plurality of recesses 338R and 339R of the prism mover 333 may be formed.
- the recesses 338R and 339R may include a third recess 338R and a fourth recess 339R.
- 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. Preferably, 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 fixed and disposed in the third recess 338R by the adhesive member.
- a plurality of fourth recesses 339R may be disposed on the fourth outer surface 330S4.
- the fourth recess 339R may be provided in the same size as the third recess 338R or may be provided in different sizes.
- the plurality of fourth recesses 339R may be disposed adjacent to the third recess 338R, and may be selectively disposed to be spaced apart from the fourth recess 339R. That is, a part of the fourth recess 339R may be disposed to be spaced apart from the third recess 338R.
- the rest of the fourth recess 339R may be disposed in connection with the third recess 338R. In this case, the depth of the third recess 338R may be different from the depth of the fourth recess 339R. Also, each of the plurality of fourth recesses 339R may have different depths.
- the fourth recess 339R may be disposed around the third recess 338R. That is, the fourth recess 339R may be disposed around the third recess 338R and surround the recess 338R.
- the plurality of fourth recesses 339R may include a first sub-fourth recess 339R1 and a second sub-fourth recess spaced apart from the third recess 338R in a first direction (x-axis direction). It may include 4 recesses (339R2).
- the plurality of fourth recesses 339R are spaced apart from or connected to the third recess 338R in a second direction (y-axis direction), and a third sub-fourth recess 339R3 and a fourth sub-fourth It may include a recess 339R4.
- the fourth recess 339R may provide a space into which the first moving plate 351 of the moving plate 350 is inserted.
- a plurality of protrusions (to be described later) of the first moving plate 351 may be inserted into the fourth recess 339R.
- the fourth recess 339R is formed to correspond to the positions of the plurality of protrusions disposed on the first moving plate 351 to provide a space in which the plurality of protrusions of the first moving plate 351 are disposed. can do.
- the depths of the fourth recesses 339R may be different.
- the depths of the first sub-fourth recess 339R1 and the second sub-fourth recess 339R2 may be the same. That is, the depth of the first sub-fourth recess 339R1 and the second sub-fourth recess 339R2 is a depth corresponding to the height of the plurality of first protrusions (to be described later) of the first moving plate 351 Can have
- the third sub-fourth recess 339R3 and the fourth sub-fourth recess 339R4 may have the same depth.
- the depth of the third sub-fourth recess (339R3) and the fourth sub-fourth recess (339R4) is a depth corresponding to the height of the plurality of second protrusions (to be described later) of the first moving plate 351 Can have
- each of the first sub-fourth recess (339R1) and the second sub-fourth recess (339R2) into which the first protrusion is inserted is a third sub-fourth recess into which the second protrusion is inserted
- Each of the 339R3 and the fourth sub-fourth recess 339R4 may be different from the depth.
- the height of the first protrusion of the first moving plate 351 may be greater than the height of the second protrusion.
- each depth of the first sub-fourth recess 339R1 and the second sub-fourth recess 339R2 is the third sub-fourth recess 339R3 and the fourth sub-fourth recess 339R4 Each of) can be greater than the depth.
- FIG. 14A is a front perspective view of a moving plate constituting a second camera actuator
- FIG. 14B is a rear perspective view of a moving plate constituting a second camera actuator.
- the moving plate 350 may include a first moving plate 351 and a second moving plate 352. That is, although the moving plate of the second camera actuator in the first and second embodiments is configured as a single piece, in the third embodiment, it may be configured as a plurality.
- the first moving plate 351 may provide a rotation shaft for rotating or tilting the prism unit 330 in a second direction (eg, an up-down direction or a y-axis direction).
- the second moving plate 352 may provide a rotation shaft for rotating or tilting the prism unit 330 in a first direction (eg, a left-right direction or an x-axis direction).
- the moving plate may also be referred to as a pivot plate for pivoting the prism unit.
- the first moving plate 351 hereinafter may be referred to as a second pivot plate
- the second moving plate 352 may be referred to as a second pivot plate.
- the moving protrusions disposed on the first moving plate 351 and the second moving plate 352 may be referred to as pivot protrusions.
- this will be described as a moving plate and a moving protrusion.
- the rotation of the prism unit 330 in the first direction is made by the second moving plate 352, and the rotation in the second direction is the first moving plate ( 351).
- the camera actuator makes different plates responsible for the rotation axis of the prism unit 330 for rotation in the first direction and the rotation axis for rotation in the second direction, respectively. Accordingly, in the embodiment, when the prism unit 330 rotates two axes, a more stable rotation is possible as the rotation shaft is made by different moving plates, and rotation accuracy can be improved, thereby ensuring stability of rotational driving. can do.
- the moving plate 350 may be disposed between the housing 310 and the prism unit 330.
- the first moving plate 351 and the second moving plate 352 constituting the moving plate 350 may have the same shape and size. That is, the first moving plate 351 and the second moving plate 352 may be identical to each other. Accordingly, in the embodiment, the two moving plates 350 may be identically manufactured in one device, and thus, ease of manufacture may be secured.
- first moving plate 351 and the second moving plate 352 constituting the moving plate 350 may be disposed in different directions between the housing 310 and the prism unit 330.
- one of the first moving plate 351 and the second moving plate 352 may be disposed to rotate 90 degrees with respect to the other moving plate.
- the first moving plate 351 and the second moving plate 352 may be coupled to each other.
- the second moving plate 352 is coupled to the housing 310.
- the first moving plate 351 may have the prism unit 330 disposed on the second moving plate 352 and be coupled to the second moving plate 352.
- the meaning of the combination means that the first moving plate 351 is not fixed to and coupled to the second moving plate 352 to each other, but the first moving plate 351 is the second moving plate 352. ) Means simply contacting.
- the first moving plate 351 includes a plurality of protrusions and a plurality of grooves
- the second moving plate 352 also includes a plurality of protrusions and a plurality of grooves.
- the plurality of protrusions of the second moving plate 352 may be inserted into the plurality of grooves of the first moving plate 351. This will be described in more detail.
- the first moving plate 351 and the second moving plate 352 have an external driving force, such as a rotation axis with respect to the moving direction of the prism unit 330 that is moved by the coil unit 323 and the magnet 325. Can provide.
- the first moving plate 351 may include the 1-1th surface 351S1.
- the first-first surface 351S1 may be a surface facing the fourth outer surface 330S4 of the prism unit 330.
- a first moving protrusion 351P1 and a first auxiliary protrusion 351P2 may be disposed on the 1-1 surface 351S1 of the first moving plate 351.
- the first moving protrusion 351P1 functions as a rotation shaft for rotating the prism unit 330 in a second direction.
- the first auxiliary protrusion 351P2 may function as a stopper for limiting a rotation range of the prism unit 330 in the second direction.
- the first moving protrusions 351P1 may be disposed to be spaced apart in a first direction (x-axis direction) with respect to a central area of the first-first surface 351S1 of the first moving plate 351.
- the central region of the first-first surface 351S1 may be a region facing the pulling magnet 360 fixedly disposed on the prism unit 330.
- the central region of the first-first surface 351S1 may be a region overlapping the pulling magnet 360 fixedly disposed on the prism unit 330 in the z-axis direction.
- first moving protrusions 351P1 are disposed to be spaced apart in the x-axis direction of the central region. That is, the first moving protrusion 351P1 is spaced apart from the center area in the +x axis direction and the first sub-first moving protrusion part (351Pa) disposed to be spaced apart in the -x axis direction with respect to the center area. It may include a second sub-first moving protrusion 351Pb disposed.
- the first sub-first moving protrusion 351Pa may correspond to the first sub-fourth recess 339R1. That is, at least a portion of the first sub-first moving protrusion 351Pa may be disposed in the first sub-fourth recess 339R1. That is, at least a portion of the first sub-first moving protrusion 351Pa may be inserted into the first sub-fourth recess 339R1. In this case, the height of the first sub-first moving protrusion 351Pa may be greater than the depth of the first sub-fourth recess 339R1. Accordingly, only a part of the first sub-first moving protrusion 351Pa may be inserted into the first sub-fourth recess 339R1.
- the first-first surface of the first moving plate 351 may be spaced apart from the fourth outer surface 330S4 of the prism mover 333 by a predetermined interval.
- the second sub-first moving protrusion 351Pb may correspond to the second sub-fourth recess 339R2. That is, at least a portion of the second sub-first moving protrusion 351Pb may be disposed in the second sub-fourth recess 339R2. That is, at least a portion of the second sub-first moving protrusion 351Pb may be inserted into the second sub-fourth recess 339R2. In this case, the height of the second sub-first moving protrusion 351Pb may be greater than the depth of the second sub-fourth recess 339R2. Accordingly, only a part of the second sub-first moving protrusion 351Pb may be inserted into the second sub-fourth recess 339R2.
- the first-first surface (351S1) of the first moving plate 351 May be spaced apart from the fourth outer surface 330S4 of the prism mover 333 by a predetermined interval.
- the first sub-first moving protrusion 351Pa and the second sub-first moving protrusion 351Pb are arranged in the x-axis direction based on the center of the first moving plate 351, and accordingly, the prism unit ( 330) provides a rotation shaft for rotating in the second direction. That is, the prism unit 330 is in the second direction (up-down direction) based on a virtual first line formed by the first sub-first moving protrusion 351Pa and the second sub-first moving protrusion 351Pb. ) Can be provided to enable rotational motion.
- the first auxiliary protrusions 351P2 may be disposed to be spaced apart in a second direction (y-axis direction) with respect to the center region of the 1-1 surface 351S1 of the first moving plate 351.
- the central region of the first-first surface 351S1 may be a region facing the pulling magnet 360 fixedly disposed on the prism unit 330.
- the central region of the first-first surface 351S1 may be a region overlapping the pulling magnet 360 fixedly disposed on the prism unit 330 in the z-axis direction.
- first auxiliary protrusions 351P2 are disposed to be spaced apart 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 region and the -y axis direction with respect to the central region.
- the disposed second sub-first auxiliary protrusion 351Pd may be included.
- the first sub-first auxiliary protrusion 351Pc may correspond to the third sub-fourth recess 339R3. That is, at least a portion of the first sub-first auxiliary protrusion 351Pc may be disposed in the third sub-fourth recess 339R3. That is, at least a portion of the first sub-first auxiliary protrusion 351Pc may be inserted into the third sub-fourth recess 339R3.
- the height of the first sub-first auxiliary protrusion 351Pc may be smaller than the depth of the third sub-fourth recess 339R3. Accordingly, the first sub-first auxiliary protrusion 351Pc may be entirely inserted into the third sub-fourth recess 339R3.
- a difference between the height of the first sub-first auxiliary protrusion 351Pc and the depth of the third sub-fourth recess 339R3 may correspond to a moving range of the prism unit. That is, the prism unit 330 is positioned above the first moving plate 351 by a difference between the height of the first sub-first auxiliary protrusion 351Pc and the depth of the third sub-fourth recess 339R3. You can move in any direction. And, when out of the movement range, the first sub-first auxiliary protrusion 351Pc contacts the bottom surface of the third sub-fourth recess 339R3 to limit the movement of the prism unit 330. have.
- the second sub-first auxiliary protrusion 351Pd may correspond to the fourth sub-fourth recess 339R4. That is, at least a portion of the second sub-first auxiliary protrusion 351Pd may be disposed in the fourth sub-fourth recess 339R4. That is, at least a part of the second sub-first auxiliary protrusion 351Pd may be inserted into the fourth sub-fourth recess 339R4.
- the height of the second sub-first auxiliary protrusion 351Pd may be smaller than the depth of the fourth sub-fourth recess 339R4. Accordingly, the second sub-first auxiliary protrusion 351Pd may be entirely inserted into the third sub-fourth recess 339R4. In this case, a difference between the height of the second sub-first auxiliary protrusion 351Pd and the depth of the fourth sub-fourth recess 339R4 may correspond to a moving range of the prism unit.
- the prism unit 330 is lower side through the first moving plate 351 by a difference between the height of the second sub-first auxiliary protrusion 351Pd and the depth of the fourth sub-fourth recess 339R4 You can move in any direction.
- the second sub-first auxiliary protrusion 351Pd may contact the bottom surface of the fourth sub-fourth recess 339R4 to limit the movement of the prism unit 330. .
- the second moving plate 352 has the same structure as the first moving plate 351. However, the second moving plate 352 may be disposed in a direction different from that of the first moving plate 351 in the recess 313R of the housing 310. That is, the first moving plate 351 is disposed between the housing 310 and the prism unit 330 so that the first moving protrusion 351P1 having a high height among the two protrusions is arranged in the x-axis direction. In this case, the second moving plate 352 includes a second moving protrusion 352P1 corresponding to the first moving protrusion 351P1 of the first moving plate 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 moving plate 352.
- the second moving plate 352 may include a 2-1 surface 352S1.
- the second-first surface 352S1 may be a surface facing the first-second surface 351S2, which is the opposite surface of the first-first surface 351S1 of the first moving plate 351.
- a second moving protrusion 352P1 and a second auxiliary protrusion 352P2 may be disposed on the 2-1 surface 352S1 of the second moving plate 352.
- the second moving protrusion 352P1 functions as a rotation shaft for rotating the prism unit 330 in the first direction.
- the second auxiliary protrusion 352P2 may function as a stopper for limiting a rotation range of the prism unit 330 in the first direction.
- the second moving protrusions 352P1 may be disposed to be spaced apart in a second direction (y-axis direction) with respect to the central area of the second-first surface 352S1 of the second moving plate 352.
- the central area of the second-first surface 352S1 may be an area facing the pulling magnet 360 fixedly disposed on the prism unit 330.
- the central area of the 2-1 surface 352S1 may be an area overlapping the pulling magnet 360 fixedly disposed on the prism unit 330 in the z-axis direction.
- the second moving protrusions 352P1 are disposed to be spaced apart 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 and the -y-axis direction is spaced apart from the center region in the +y-axis direction.
- a second sub second moving protrusion 352Pb may be disposed.
- the first sub second moving protrusion 352Pa and the second sub second moving protrusion 352Pb are a first moving recess disposed on the 1-2 surface 351S2 of the first moving plate 351 to be described later. It may correspond to (351R). That is, the first sub-second moving protrusion 352Pa and the second sub-second moving protrusion 352Pb are first moving disposed on the 1-2 surface 351S2 of the first moving plate 351 to be described later. It may be fitted to the recess (351R). This will be described in more detail below.
- the first sub second moving protrusion 352Pa and the second sub second moving protrusion 352Pb are arranged in the y-axis direction based on the center of the second moving plate 352, and accordingly, the prism unit ( 330) provides a rotation shaft for rotating in the first direction. That is, the prism unit 330 is in the first direction (left-right direction) based on a virtual second line formed by the first sub-second moving protrusion 352Pa and the second sub-second moving protrusion 352Pb. ) Can be provided to enable rotational motion.
- the second auxiliary protrusions 352P2 may be disposed to be spaced apart in a first direction (x-axis direction) with respect to the center area of the second-first surface 352S1 of the second moving plate 352.
- the central area of the second-first surface 352S1 may be an area facing the pulling magnet 360 fixedly disposed on the prism unit 330.
- the central area of the 2-1 surface 352S1 may be an area overlapping the pulling magnet 360 fixedly disposed on the prism unit 330 in the z-axis direction.
- the second auxiliary protrusions 352P2 are disposed to be spaced apart 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 region and the +x-axis direction with respect to the central region.
- the disposed second sub second auxiliary protrusion 352Pd may be included.
- 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 moving plate 351 by a predetermined interval.
- the separation distance may correspond to a moving range of the prism unit.
- the prism unit 330 may move the second moving plate 352 to the left by a distance between the first sub-second auxiliary protrusion 352Pc and the 1-2 surface 351S2. . And, when out of the moving range, the first sub-second auxiliary protrusion 352Pc contacts the first-2 surface 351S2 and the bottom surface of the first moving plate 351, and the prism unit ( 330) can be restricted.
- the prism unit 330 may move the second moving plate 352 to the right by a distance between the second sub-second auxiliary protrusion 352Pd and the 1-2 surface 351S2. . And, when out of the moving range, the second sub-second auxiliary protrusion 352Pd contacts the first-2 surface 351S2 and the bottom surface of the first moving plate 351, and the prism unit ( 330) can be restricted.
- the first moving plate 351 may include a 1-2th surface 351S2.
- the first-second surface 351S2 may be a surface facing the second-first surface 352S1 of the second moving plate 352.
- a first moving recess 351R may be disposed on the 1-2 surface 351S2 of the first moving plate 351.
- the first moving recess 351R is arranged in the y-axis direction with respect to the center of the 1-2 surface 351S2 of the first moving plate 351, and is thus coupled with the second moving plate 352 It can provide a bonding space for That is, the first moving recess 351R may correspond to the second moving protrusion 352P1 of the second moving plate 352. That is, 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 moving plate 352 may be included.
- the first sub-second auxiliary protrusion 352Pc of the second moving protrusion 352P1 may be at least partially inserted into the first sub-first moving recess 351R1, and the second moving plate 352 ) Of the second sub second auxiliary protrusion 352Pd may be at least partially inserted into the second sub first moving recess 351R2.
- the second moving plate 352 may include a second-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 second-second surface 352S2 of the second moving plate 352. Meanwhile, the second moving recess 352R in the second moving plate 352 may be omitted. However, in order to manufacture the first moving plate 351 and the second moving plate 352 in the same process, the second moving plate 352 is also used in the same manner as the first moving plate 351. A recess 352R may be disposed.
- the second moving recesses 352R may be arranged in the x-axis direction with respect to the center of the second-second surface 352S2 of the second moving plate 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 moving plate 352 ( 352R1) and a second sub-second moving recess 352R2 disposed in the +x-axis direction with respect to the center of the second-second surface 352S2 of the second moving plate 352.
- the second moving plate 352 is fixedly disposed in the recess 313R of the housing 310.
- an adhesive member for fixing the second moving plate 352 is disposed in the recess 313R.
- the second moving recess 352R may improve a bonding force between the second moving plate 352 and the housing 310. That is, in the process of fixing the second moving plate 352 to the housing 310 by using the adhesive member, the adhesive member is the second moving recess 352R of the second moving plate 352 It can penetrate into the inside, and accordingly, while increasing the contact area with the adhesive member, it is possible to improve the adhesive force accordingly.
- the first moving plate 351 and the second moving plate 352 may be formed of the same material, or differently, may be formed of different materials.
- the second moving plate 352 may be formed of a magnetic material.
- the second moving plate 352 is fixedly disposed on the housing 310.
- the pulling magnet 360 is fixedly disposed on the prism unit 330.
- the first moving plate 351 is in a state in which a protrusion is inserted into the recess of the prism unit 330 and the protrusion of the second moving plate 352 is inserted into the recess, It may be interposed between 352 and the pulling magnet 360.
- the second moving plate 352 is formed of a magnetic material. Accordingly, the pulling magnet 360 and the second moving plate 352 may generate attraction to each other. That is, an attractive force acts between the pulling magnet 360 and the second moving plate 352. Accordingly, the prism unit 330 may be pressed toward the housing 310 by the attractive force. That is, the prism unit 330 may be supported by the housing 310 by the attractive force. Further, the first moving plate 351 may also be pressed together with the prism unit 330 as the prism unit 330 is pressed to be supported by the housing 310.
- the first moving plate 351 and the second moving plate 352 may be formed by a press method. Accordingly, the first moving plate 351 and the second moving plate 352 may be formed of different materials. That is, the first moving plate 351 may be formed of a non-magnetic material different from the second moving plate 352. For example, the first moving plate 351 may be formed of an injection product or a ceramic material. However, in order to simplify the manufacturing process, the first moving plate 351 may be formed of a magnetic material together with the second moving plate 352. In addition, when the first moving plate 351 is formed of a magnetic material, a coupling force between the first moving plate 351, the second moving plate 352 and the pulling magnet 360 may be further improved.
- the plurality of first moving protrusions and the plurality of first auxiliary protrusions are arranged in a cross shape with respect to the first area on the first-first surface 351S1 of the first moving plate 351,
- the plurality of second moving protrusions and the plurality of second auxiliary protrusions are disposed in a cross shape with respect to the second area on the 2-1 surface 352S1 of the second moving plate 352.
- 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 overlap the pulling magnet 360 in the z-axis direction on the first-first surface (351S1) of the first moving plate 351 It can be arranged in the form of a cross around the area.
- the plurality of second moving protrusions and the plurality of second auxiliary protrusions on the 2-1 surface 352S1 of the second moving plate 352 overlap the pulling magnet 360 in the z-axis direction. It can be arranged in the form of a cross around.
- 15 and 16 are diagrams illustrating a coupling relationship between a housing, a prism unit, and a moving protrusion in a second camera actuator in a third embodiment.
- the moving plate 350 may include a first moving plate 351 and a second moving plate 352.
- the second moving plate 352 generates an attractive force for fixing the prism unit 330 to the housing 310 and provides a rotation axis for rotating the prism unit 330 in the first direction. I can.
- Centers of the pulling magnet 360, the first moving plate 351, and the second moving plate 352 may overlap each other in the z-axis direction.
- first moving plate 351 may be disposed between the housing 310 in which the second moving plate 352 is disposed and the prism unit 330 in which the pulling magnet 360 is disposed.
- first moving protrusion 351P1 and the first auxiliary protrusion 351P2 of the first moving plate 351 may be inserted into the fourth recess 339R of the prism unit 330.
- the first sub-first moving protrusion 351Pa may be inserted into the first sub-fourth recess 339R1, and the second sub-first moving protrusion 351Pb is the second sub-fourth recess 339R2 Can be inserted within.
- first sub-first auxiliary protrusion 351Pc may be inserted into the third sub-fourth recess 339R3, and the second sub-first auxiliary protrusion 351Pd is the fourth sub-fourth recess ( 339R4).
- a second moving protrusion 352P1 of the second moving plate 352 may be inserted into the first moving recess 351R of the first moving plate 351.
- the first moving plate 351 is pressed together with the prism unit 330 by an attractive force acting between the second moving plate 352 and the pulling magnet 360 to be pressed against the housing 310. Can be supported.
- the first moving plate 351 serves as a rotation shaft for rotating the prism unit 330 in a second direction corresponding to the y-axis direction
- the second moving plate 352 is the prism unit ( It serves as a rotation shaft for rotating 330 in the first direction corresponding to the x-axis.
- 17A and 17B are exemplary diagrams for operation of a second camera actuator according to an embodiment.
- the prism unit 330 rotates in a second direction about a virtual first line L1 formed by the first moving protrusion 351P1 of the first moving plate 351 in a second direction.
- Exercise can be provided where possible.
- the driving unit 320 may rotate the prism unit 330 in the vertical direction.
- a 3-1 coil part adjacent to the first moving plate 351 among the third coil parts 323c, and a third coil part adjacent to the first moving plate 351 among the third magnet 325c -1 Repulsive force may occur between magnets.
- Manpower may be generated between the magnets.
- the prism unit 330 may be tilted downward with respect to the first line L1 as a reference axis. That is, the prism unit 330 may be tilted at a predetermined angle in the vertical direction based on the first line L1. Accordingly, a moving path of light incident on the prism unit 330 may be controlled.
- the prism unit 330 moves in a first direction based on a second imaginary line L2 formed by the second moving protrusion 352P1 of the second moving plate 352.
- a rotational motion can be provided to enable it.
- the driving unit 320 may rotate the prism unit 330 in the left and right directions.
- a 1-1 coil part adjacent to the second moving plate 352 among the first coil parts 323a, and a first coil part adjacent to the second moving plate 352 among the first magnet 325a -1 Repulsive force may occur between magnets.
- Manpower may be generated between the magnets.
- Manpower may be generated between the magnets.
- a repulsive force may occur between the magnets.
- the prism unit 330 may be tilted in a horizontal direction with respect to the second line L2 as a reference axis. That is, the prism unit 330 may be tilted at a predetermined angle in the left-right direction based on the second line L2. Accordingly, a moving path of light incident on the prism unit 330 may be controlled.
- FIG. 18 is a perspective view of a first camera actuator 100 according to an embodiment
- FIG. 19 is a perspective view with some components omitted from the camera actuator according to the embodiment shown in FIG. 18, and
- FIG. 20 is an embodiment shown in FIG. It is an exploded perspective view with some components omitted from the camera actuator according to the example.
- the first camera actuator 100 includes a base 20, a circuit board 410 disposed outside the base 20, a fourth driver 142, and a third lens assembly ( 130) may be included.
- the first camera actuator 100 includes a first guide part 210 and a second A guide unit 220, a first lens assembly 110, a second lens assembly 120, a third driving unit 141, and a fourth driving unit 142 may be included.
- 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 a magnet.
- the z-axis refers to the optical axis direction or a direction parallel thereto
- the xz plane refers to the ground
- the x-axis refers to a direction perpendicular to the z-axis in the plane (xz plane)
- the y-axis may mean a direction perpendicular to the ground.
- the first 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 first camera actuator 100 includes a base 20, a first guide part 210 disposed on one side of the base 20, and a first guide part 210 disposed on the other side of the base 20
- a first ball bearing 117 (refer to FIG. 15A) 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 ) It may include a second ball bearing (not shown) disposed between.
- the embodiment may include a third lens assembly 130 disposed in front of the first lens assembly 110 in the optical axis direction.
- an exemplary embodiment includes a first guide part 210 disposed adjacent to the first side wall 21a of the base 20 and the second side wall of the base 20 ( It may include a second guide portion 220 disposed adjacent to 21b).
- 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 21b of the base 20.
- the first sidewall 21a and the second sidewall 21b of the base may be disposed to face each other.
- there are technical effects such as improvement of driving power, reduction of power consumption, and improvement of control characteristics.
- the guide rail is not disposed on the base itself, but the first guide part 210 and the second guide part 220 that are separately formed and assembled from the base 20 are separately employed. Accordingly, there is a special technical effect that can prevent the occurrence of gradient.
- the base 20 may be injected in the Z-axis direction.
- the rail is integrally configured with the base, there is a problem that the straight line of the rail is twisted due to the occurrence of a gradient as the rail is ejected in the Z-axis direction.
- 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 occurrence of a gradient compared to the prior art, so that precise injection is possible, and a gradient occurs due to injection. There is a special technical effect that can prevent it.
- the first guide part 210 and the second guide part 220 may have a shorter injection length than the base 20 by being injected in the X-axis.
- the first guide part 210 and the second guide part When the rails 212 and 222 are disposed at 220, it is possible to minimize the occurrence of a gradient during injection, and there is a technical effect that the possibility that the straight line of the rail is twisted is low.
- 21 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 first-first rail 212a and the first-second 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 during 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 and resolution by changing the angle of view or preventing the occurrence of out of focus.
- the first guide part 210 since the first guide part 210 includes the 1-1 rail 212a and the 1-2 rail 212a, the 1-1 rail 212a and the 1- 2 There is a technical effect of improving alignment accuracy by guiding the first lens assembly 110 by the rail 212a.
- 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 223 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 the 2-1 protrusion 224p1 and the 2-2 protrusion 224p2 may be included on the second guide protrusion 225.
- the 224p2 may be coupled to the third housing 21 of 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, the 1-1 rail 212a and the 1-2 rail 212b ) Guides the first lens assembly 110, thereby improving alignment accuracy.
- the second guide unit 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 ( As 222b) guides the second lens assembly 120, there is a technical effect of improving alignment accuracy.
- the guide rail is not disposed on the base itself, but the first guide part 210 and the second guide part 220 that are separately formed and assembled from the base 20 are separately employed, thereby generating a gradient according to the injection direction. There is a special technical effect that can prevent it.
- FIG. 22A is a perspective view of the first lens assembly 110 in the camera actuator according to the embodiment shown in FIG. 20, and FIG. 22B is a perspective view with some components removed from the first lens assembly 110 shown in FIG. 22A. to be.
- an exemplary embodiment includes a first lens assembly 110 moving along the first guide part 210 and a second lens assembly 120 moving along the second guide part 220. It may include.
- the first lens assembly 110 includes a first lens barrel 112a in which the first lens 113 is disposed and a first driving unit housing 112b in which the first driving 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 drive unit housing (not shown) in which a second drive 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 first driving part 116 may correspond to the two first rails 212, and the second driving part may correspond to the two second rails 222.
- Embodiments can be driven using single or multiple balls.
- a first ball bearing 117 disposed between the first guide part 210 and the first lens assembly 110 and the second guide part 220 and the second lens assembly 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 on the upper side of 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, and the first ball bearing ( The 1-2 ball bearing 117b of 117 may move along the 1-2 rail 212b which is the other one of the first rail 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 the plurality of lens groups is well aligned and the angle of view is improved. There is a technical effect of remarkably improving image quality and resolution by preventing changes or out of focus.
- the first guide portion includes a 1-1 rail and a 1-2 rail, so that the 1-1 rail and the 1-2 rail guide the first lens assembly 110 When the first lens assembly 110 moves, there is a technical effect of increasing the accuracy of aligning the optical axis 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.
- first assembly grooves 112b1 of the first lens assembly 110 There may be a plurality of first assembly grooves 112b1 of the first lens assembly 110. In this case, a distance between the two first assembly grooves 112b1 of the plurality of first assembly grooves 112b1 based on the optical axis direction may be longer than the 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 that contacts 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 in addition to a V shape or a shape that contacts the first ball bearing 117 at two or three points.
- FIG. 23 is an exemplary view of driving 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 part 141b.
- the N-pole 116N and S-pole 116S of the magnet may be disposed to correspond to a region in which the current flows in the y-axis direction perpendicular to the ground in the first coil unit 141b.
- a magnetic force DM is applied in a direction opposite 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).
- electromagnetic force acts in the z-axis direction according to Fleming's left-hand rule when current DE flows in the y-axis direction in the region of the first coil part 141b corresponding to the N-pole 116N Is done.
- a magnetic force DM is applied in the x-axis direction from the S pole 116S of the first driving part 116, and y perpendicular to the ground in the first coil part 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 a positive or negative direction in the illustrated direction).
- the first lens assembly 110 which is a mover in which the first driving unit 116 is disposed, has an electromagnetic force (DEM) according to the current direction. As a result, it may be moved 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 (DEM) between the second magnet (not shown) and the second coil unit 142b is generated, so that the second lens assembly 120 is horizontal to the optical axis and the second guide unit 220 ) Can be moved along the rail.
- a plurality of lens assemblies are driven by an electromagnetic force between a magnet and a coil.
- a Hall sensor is disposed inside the winding of the coil.
- the inside of the winding of the coil on which the Hall sensor is disposed may be a hollow of the coil.
- the Hall sensor may obtain positional information of the lens assembly by detecting a change in magnetic flux of a magnet disposed in the lens assembly.
- the distance between the Hall sensor and the magnet is determined by the height of the coil.
- the optimum point of the sensitivity and thrust of the Hall sensor is set by a coil having an appropriate 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 decent or tilt of the camera module may cause the safety or life of the driver or pedestrian. It can be directly connected to.
- one of the technical problems of the embodiment is to provide a camera actuator capable of simultaneously increasing the sensitivity of a Hall sensor while increasing thrust and a camera module including the same.
- FIG. 24 is a cross-sectional view taken along line C1-C2 in the camera actuator according to the embodiment illustrated in FIG. 18.
- the first camera actuator 100 may include a base 20 and a lens assembly disposed on the base 20.
- a third lens assembly 130, a first lens assembly 110, and a second lens assembly 120 may be sequentially disposed on the base 20 based on a light incident direction, and an image sensor ( 180 may be disposed behind the second lens assembly 120.
- the first camera actuator 100 may be driven by an electromagnetic force of a predetermined magnet and a coil unit.
- the first lens assembly 110 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 and a fourth driving unit 142.
- the first driving unit 116 and the second driving unit 126 may be magnet driving units, and the third driving unit 141 and the fourth driving unit 142 may be coil driving units, but are not limited thereto.
- the first driving unit 116 and the second driving unit 126 will be described as being a magnet driving unit, and the third driving unit 141 and the fourth driving unit 142 will each be a coil driving unit. .
- the first driving unit 116 may include a first magnet 116b and a first yoke 116a
- the third driving unit 141 is A first coil part 141b and a third yoke 141a may be included.
- the third driving part 141 may include a first circuit board 41a between the first coil part 141b and the third yoke 141a.
- the embodiment may include a first spacer 141c disposed on the base 20 and a first position detection sensor 71 disposed on the first spacer 141c.
- the first spacer 141c may be formed of at least one of polycarbonate (PC), polyethylene terephthalate glycol (PETG), polyethylene (PE), or polypropylene (PP), but is not limited thereto.
- the first position detection sensor 71 may be a magnetic sensor.
- the first position detection sensor 71 may be any one of a solid-state magnetic sensor such as a Hall sensor, a coil-type magnetic sensor, or a resonance-type magnetic sensor, but is not limited thereto.
- the second driving unit 126 in the second lens assembly 120 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.
- the fourth driving part 142 may include a second circuit board 41b between the second coil part 142b and the fourth yoke 142a.
- the embodiment may include a second spacer 142c disposed on the base 20 and a second position detection sensor 72 disposed on the second spacer 142c.
- the second spacer 142c may be formed of at least one of polycarbonate (PC), polyethylene terephthalate glycol (PETG), polyethylene (PE), or polypropylene (PP), but is not limited thereto.
- the second position detection sensor 72 may be any one of a coil type magnetic sensor, a solid state magnetic sensor such as a Hall sensor, or a resonance type magnetic sensor, but is not limited thereto.
- FIG. 25A is an enlarged view of area S shown in FIG. 24, and FIG. 18B is a detailed view of area S shown in FIG. 18A.
- a base 20 a first lens assembly 110 disposed in the base 20, and the third driving part which is a coil driving part disposed in the base 20 ( 141), a first spacer 141c disposed on the base 20, and a first position detection sensor 71 disposed on the first spacer 141c.
- the third driving part 141 may include a first circuit board 41a disposed between the first coil part 141b and the third yoke 141a.
- the first coil part 141b and the first position sensor 71 may be electrically connected to the first circuit board 41a.
- the first spacer 141c includes a first support part 141c1 and a first protrusion 141c3 protruding from the first support part 141c1, and the first position detection sensor ( 71) may be disposed on the first protrusion 141c3, and the first protrusion 141c3 may be disposed in the hollow of the first coil part 141b that is a coil driving part.
- the embodiment may include a first connecting portion 141c2 connecting the first protruding portion 141c3 and the first supporting portion 141c1.
- the first circuit board 41a is disposed to be spaced apart from the first substrate region 41a1 disposed on the first spacer 141c and the first substrate region 41a1.
- a second substrate region 41a3 may be included.
- the first circuit board 41a may include a 2-2nd substrate region 41a2 connecting the first substrate region 41a1 and the second substrate region 41a3.
- the first position detection sensor 71 may be disposed on the second substrate region 41a3, and the second substrate region 41a3 may be disposed in the hollow of the first coil part 141b, which is a coil driver.
- the embodiment includes a base 20, a second lens assembly 120 disposed in the base 20, the fourth driving part 142, which is a coil driving part disposed in the base 20, A second spacer 142c disposed on the base 20 and a second position detection sensor 72 disposed on the second spacer 142c may be included.
- the second spacer 142c may also employ the technical characteristics of the first spacer 141c.
- the second spacer 142c includes a second protrusion (not shown) protruding from the second support (not shown), and the second position detection sensor 72 It is disposed on the protrusion, and the second protrusion may be disposed in the hollow of the fourth driving part 142 which is a coil driving part.
- the second protrusion may include a second seating portion (not shown), and the second position sensor 72 may be disposed on the second seating portion.
- the second circuit board 41b includes a third substrate region (not shown) disposed on the second spacer 142c and a fourth substrate region spaced apart from the third substrate region. It may include a substrate region (not shown).
- the second circuit board 41b may include a 4-2th substrate region connecting the third substrate region and the fourth substrate region.
- the second position detection sensor 72 may be disposed on the 4-2th substrate area, and the 4-2th substrate area may be disposed in the hollow of the fourth driving unit 142 which is a coil driving unit.
- the first lens assembly 110 is applied to an electromagnetic force (DEM) between the first magnet 116b of the first driving unit 116 and the first coil unit 141b of the third driving unit 141. By this, it can be driven in the direction of the optical axis.
- EDM electromagnetic force
- the electromagnetic force DEM is affected by the distance DCM between the first magnet 116b and the first coil unit 141b.
- the magnetic flux of the magnet detected by the Hall sensor changes, and the Hall sensor's position detection performance is affected.
- FIG. 25C is magnetic flux data according to a separation distance between the magnet and the first position detection sensor 71 in the embodiment and the comparative example.
- the height of the coil portion must be guaranteed to secure thrust, and conventionally, as the Hall sensor is disposed on the PCB at the bottom of the coil portion, the higher the height of the coil portion, the greater the separation distance between the magnet and the Hall sensor, There is a technical limitation in that the first distance DH1 separated between the magnet and the Hall sensor must be secured at least 800 ⁇ m.
- the magnetic flux of the magnet detected by the Hall sensor was at a level of about 50 (mT).
- the first spacer 141c includes a first protrusion 141c3 protruding from the first support part 141c1, and the first position detection sensor 71 is on the first protrusion 141c3.
- the second distance DH2 between the first magnet 116b and the first position detection sensor 71 is significantly reduced, so that the magnetic flux of the first magnet 116b detected by the first position detection sensor 71 ( Magnet Flux)dl has a remarkably improved technical effect.
- the second distance DH2 between the first magnet 116b and the first position detection sensor 71 is determined. It is possible to secure the magnetic flux between the first magnet 116b and the first position detection sensor 71 to about 150 (mT) compared to the comparative example compared to the comparative example. It has a unique technical effect that can be secured about three times higher than that.
- the first position detection sensor 71 may be disposed in the hollow of the first coil part 141b. Since it is almost exposed to the magnet 116b, there is a special technical effect that the magnetic flux blocking by the first coil unit 141b is significantly reduced.
- the camera actuator and the camera module including the same according to the embodiment have a unique technical effect that can simultaneously increase the sensitivity of the Hall sensor while increasing 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 an electromagnetic force between a magnet and a coil when implementing AF or Zoom, and includes the same. It is to provide a camera module that can be used.
- one of the technical problems of the embodiment is to provide a camera actuator capable of preventing the detachment of a magnet and a yoke, and a camera module including the same.
- FIGS. 26A to 26C a structure for preventing magnetic interference in an embodiment will be described with reference to FIGS. 26A to 26C.
- FIG. 26A 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, and the first yoke 116a is a first support part 116a1, 1 It may include a first side protrusion 116a2 extending from the support part 116a1 to the side of the first magnet 116b.
- the first side protrusions 116a2 may be disposed on both side surfaces of the first magnet 116b.
- first yoke 116a may include a first fixed protrusion 116a3 extending in a direction different from the first side protrusion 116a2, for example, in an opposite direction.
- the first fixing protrusion 116a3 may be disposed at an intermediate position of the first support 116a1, but is not limited thereto.
- the second driving unit 126 includes a second magnet 126b and a second yoke 126a, and the second yoke 126a is a second support (not shown), and the second support
- the second magnet 126b may include a second side protrusion extending to the side (refer to the second yoke 126a structure of FIG. 24 above).
- the second side protrusions 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. 26B is magnetic flux density distribution data in a comparative example.
- the comparative example of FIG. 26B is a structure applied to provide a magnetic flux shielding function by arranging a back yoke for a magnet as a private internal technology of the applicant. Although the magnetic flux shielding performance was improved by the application of the back yoke technology to such a magnet, there was a technical problem as follows.
- the yoke to the magnet driving unit of the first lens assembly 110 or the second lens assembly 120 includes a side protrusion extending toward the side of the magnet, so that a plurality of lens assemblies may be provided between the magnet and the coil.
- a camera actuator capable of preventing magnetic field interference between magnets mounted on each lens assembly and a camera module including the same.
- Fig. 26C is magnetic flux density distribution data in the embodiment.
- the magnetic flux density data between the magnets mounted on the first lens assembly and the second lens assembly according to the embodiment, and the magnet driving unit of the first lens assembly 110 and the second lens assembly 120 Since the yoke includes a side protrusion extending to the side of the magnet, magnetic field interference (IF) between the magnets is prevented, and the precision of camera control is significantly improved.
- IF magnetic field interference
- the yoke to the magnet driving unit of the first lens assembly 110 and the second lens assembly 120 includes a side protrusion extending to the side of the magnet to prevent leakage of magnetic flux generated from the magnet.
- the magnetic flux is concentrated (FC) by arranging the side protrusions in the high magnetic flux density area, the density between the flux line and the coil is increased, thereby increasing the Lorentz force, resulting in remarkable thrust. There is an improved technical effect.
- FIG. 27 is an exemplary diagram of an integrated body 315 in a camera module according to another embodiment.
- the first camera actuator 100 may be disposed in the first body region 315a of the integrated body 315, and the second camera actuator 300 may be disposed in the second body region 315b. Can be placed.
- FIG. 28 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 a rear surface.
- 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 moving picture obtained by an image sensor in a photographing mode or a video call mode.
- the processed image frame may be displayed on a predetermined display and stored in a memory.
- a camera (not shown) may also be disposed in 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 with an AF or zoom function by the first camera module 1000A. This could be possible.
- the flash module 1530 may include a light emitting device that emits 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 a package of a surface light emitting laser device as a light emitting unit.
- the auto focus device 1510 may include an auto focus function using a laser.
- the autofocus device 1510 may be mainly used in a condition in which an autofocus function using an image of the camera module 1000 is deteriorated, for example, in a proximity or dark environment of 10m or less.
- the autofocus device 1510 may include a light emitting unit including a vertical cavity surface emission laser (VCSEL) semiconductor device, and a light receiving unit that converts light energy such as a photodiode into electrical energy.
- VCSEL vertical cavity surface emission laser
- FIG. 29 is a perspective view of a vehicle 700 to which a camera module according to an embodiment is applied.
- FIG. 22 is an external view of a vehicle including a vehicle driving assistance apparatus to which the camera module 1000 according to the embodiment is applied.
- the vehicle 700 may include wheels 13FL and 13FR rotating 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 photographs a front image or a surrounding image, and uses the image information to determine a lane identification situation and generate a virtual lane when the vehicle is not identified. 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 analyze an object included in the front image to obtain image information.
- the processor detects such an object.
- the processor detects such an object.
- it can be included in the image information.
- the processor may further supplement the image information by obtaining distance information from the object detected through the camera sensor 2000.
- the image information may be information about an object photographed in the 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 picture obtained by an image sensor (eg, CMOS or CCD).
- the image processing module may process a still image or moving image acquired through an image sensor, extract necessary information, and transmit the extracted information to the processor.
- the camera sensor 2000 may include a stereo camera to improve measurement accuracy of an object and further secure information such as a distance between the vehicle 700 and the object, but is not limited thereto.
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- Signal Processing (AREA)
- Optics & Photonics (AREA)
- Studio Devices (AREA)
- Lens Barrels (AREA)
- Structure And Mechanism Of Cameras (AREA)
- Adjustment Of Camera Lenses (AREA)
- Cameras In General (AREA)
Abstract
Description
Claims (10)
- 하우징;상기 하우징 내에 배치되는 프리즘 유닛;상기 프리즘 유닛을 틸팅하는 구동부;상기 하우징과 상기 프리즘 유닛 사이에 배치되는 무빙 플레이트; 및상기 프리즘 유닛이 상기 하우징에 지지되도록 하는 지지부를 포함하고,상기 무빙 플레이트는,상기 프리즘 유닛과 마주보고, 제1 방향으로 배치되는 제1 무빙 돌출부; 및상기 하우징과 마주보고, 상기 제1 방향과 수직한 제2 방향으로 배치되는 제2 무빙 돌출부를 포함하는 카메라 액추에이터.
- 제1항에 있어서,상기 프리즘 유닛은,수용부를 구비하는 프리즘 무버; 및상기 프리즘 무버의 상기 수용부 내에 배치되는 프리즘을 포함하고,상기 프리즘 무버에는 상기 무빙 플레이트와 함께 인력을 발생시키는 풀링 마그네트가 배치되고,상기 프리즘 무버는 상기 무빙 플레이트 및 상기 풀링 마그네트 간의 인력에 의해 상기 하우징에 지지된 상태에서 상기 무빙 플레이트의 회전 기준축을 기준으로 틸트되며,상기 무빙 플레이트는 자성체로 구성되는,카메라 액추에이터.
- 제2항에 있어서,상기 무빙 플레이트는,제1 및 제2 무빙 플레이트를 포함하고,상기 제2 무빙 플레이트는상기 하우징의 리세스 내에 고정 배치되고, 상기 풀링 마그네트와 인력을 발생시키기 위해 자성체로 구성되고,상기 제1 무빙 플레이트는,상기 프리즘 무버와 상기 제2 무빙 플레이트 사이에 배치되고, 상기 인력에 의해 상기 하우징에 지지되는카메라 액추에이터.
- 제3항에 있어서,상기 제1 무빙 돌출부는, 상기 프리즘 무버와 마주하는 상기 제1 무빙 플레이트의 일면 상에 형성되고,상기 제2 무빙 돌출부는, 상기 제1 무빙 플레이트와 마주하는 상기 제2 무빙 플레이트의 일면 상에 형성되는카메라 액추에이터.
- 제4항에 있어서,상기 제1 무빙 플레이트의 상기 일면 상에는,상기 제2 방향으로 이격되어 배치되는 복수의 제1 보조 돌출부를 포함하고,상기 제2 무빙 플레이트의 상기 일면 상에는,상기 제1 방향으로 이격되어 배치되는 복수의 제2 보조 돌출부를 포함하며,상기 프리즘 유닛은상기 복수의 제1 보조 돌출부에 의해 상기 제2 방향으로의 회전 범위가 제한되고,상기 복수의 제2 보조 돌출부에 의해 상기 제1 방향으로의 회전 범위가 제한되는카메라 액추에이터.
- 제5항에 있어서,상기 제1 무빙 플레이트의 상기 일면 상에서 상기 복수의 제1 무빙 돌출부 및 상기 복수의 제1 보조 돌출부는, 제1 영역을 기준으로 십자가 형태로 배치되고,상기 제2 무빙 플레이트의 상기 일면 상에서 상기 복수의 제2 무빙 돌출부 및 상기 복수의 제2 보조 돌출부는, 제2 영역을 기준으로 십자가 형태로 배치되며,상기 제1 및 제2 영역은,상기 풀링 마그네트와 제3 방향으로 중첩되는카메라 액추에이터.
- 제1항에 있어서,상기 프리즘 유닛이 상기 하우징에 지지되도록 하는 지지부를 포함하고,상기 지지부는,상기 프리즘 무버와 상기 하우징에 각각 배치되는 제1 풀링 부재 및 제2 풀링 부재를 포함하고,상기 제1 풀링 부재 및 제2 풀링 부재 중 하나는 마그네트이고, 상기 제1 풀링 부재 및 제2 풀링 부재 중 다른 하나는 요크이며,상기 프리즘 유닛 및 상기 무빙 플레이트는, 상기 제1 및 제2 풀링 부재 간의 인력에 의해 상기 하우징에 지지되는카메라 액추에이터.
- 상기 프리즘 유닛이 상기 하우징에 지지되도록 하는 지지부를 포함하고,상기 지지부는,상기 프리즘 무버와 상기 하우징 사이에 배치되고, 상호 일정 간격 이격된 복수의 탄성 부재를 포함하고,상기 프리즘 무버 및 무빙 플레이트는 상기 복수의 탄성 부재의 탄성 복원력에 의해 상기 하우징에 지지되는,카메라 액추에이터.
- 하우징;상기 하우징 내에 배치되는 프리즘 유닛;상기 프리즘 유닛을 틸팅하는 구동부;상기 하우징의 측벽에 배치된 제2 피봇 플레이트; 및상기 제2 피봇 플레이트와 상기 프리즘 유닛 사이에 배치된 제1 피봇 플레이트를 포함하고,상기 프리즘 유닛은 풀링 마그넷을 포함하고,상기 프리즘 유닛은, 상기 풀링 마그넷 및 상기 제2 피봇 플레이트 사이의 인력에 의해 상기 하우징에 지지된 상태에서, 상기 제1 피봇 또는 제2 피봇 플레이트의 회전 기준축을 기준으로 틸트되는카메라 액추에이터.
- 제11항에 있어서,상기 제1 피봇 플레이트는 자성체 또는 비자성체로 구성되고,상기 제2 피봇 플레이트 상기 풀링 마그넷과 함께 인력을 발생시키는 자성체로 구성된카메라 액추에이터.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US17/631,790 US12306525B2 (en) | 2019-07-29 | 2020-07-28 | Camera actuator |
| EP20847022.9A EP4007264A4 (en) | 2019-07-29 | 2020-07-28 | CAMERA ACTUATOR |
| JP2022506298A JP7607629B2 (ja) | 2019-07-29 | 2020-07-28 | カメラアクチュエータ |
| CN202080068427.9A CN114450933B (zh) | 2019-07-29 | 2020-07-28 | 相机致动器 |
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020190091928A KR102954315B1 (ko) | 2019-07-29 | 카메라 모듈 및 이를 포함하는 카메라 장치 | |
| KR1020190091859A KR20210013961A (ko) | 2019-07-29 | 2019-07-29 | 카메라 모듈 및 이를 포함하는 카메라 장치 |
| KR10-2019-0091928 | 2019-07-29 | ||
| KR10-2019-0091859 | 2019-07-29 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2021020862A1 true WO2021020862A1 (ko) | 2021-02-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/KR2020/009934 Ceased WO2021020862A1 (ko) | 2019-07-29 | 2020-07-28 | 카메라 액추에이터 |
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|---|---|
| US (1) | US12306525B2 (ko) |
| EP (1) | EP4007264A4 (ko) |
| JP (1) | JP7607629B2 (ko) |
| CN (1) | CN114450933B (ko) |
| TW (1) | TWI856145B (ko) |
| WO (1) | WO2021020862A1 (ko) |
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2020
- 2020-07-28 US US17/631,790 patent/US12306525B2/en active Active
- 2020-07-28 CN CN202080068427.9A patent/CN114450933B/zh active Active
- 2020-07-28 WO PCT/KR2020/009934 patent/WO2021020862A1/ko not_active Ceased
- 2020-07-28 EP EP20847022.9A patent/EP4007264A4/en active Pending
- 2020-07-28 JP JP2022506298A patent/JP7607629B2/ja active Active
- 2020-07-29 TW TW109125905A patent/TWI856145B/zh active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2015011353A (ja) * | 2013-07-01 | 2015-01-19 | 台湾東電化股▲ふん▼有限公司 | 光路の切り換えが可能な光学震動防止機構 |
| KR20170116749A (ko) * | 2016-04-12 | 2017-10-20 | 엘지이노텍 주식회사 | 렌즈 구동 장치, 및 이를 포함하는 카메라 모듈 및 광학 기기 |
| KR20180094355A (ko) * | 2017-02-15 | 2018-08-23 | 삼성전기주식회사 | 손떨림 보정 반사모듈 및 이를 포함하는 카메라 모듈 |
| KR20180095420A (ko) * | 2017-02-17 | 2018-08-27 | 삼성전기주식회사 | 손떨림 보정 반사모듈 및 이를 포함하는 카메라 모듈 |
| KR20180096073A (ko) * | 2017-02-20 | 2018-08-29 | 자화전자(주) | 다축 구조의 ois용 반사계 구동장치 |
Non-Patent Citations (1)
| Title |
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| See also references of EP4007264A4 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022203412A1 (ko) * | 2021-03-24 | 2022-09-29 | 엘지이노텍 주식회사 | 액추에이터 장치 |
| JP2024512007A (ja) * | 2021-03-24 | 2024-03-18 | エルジー イノテック カンパニー リミテッド | アクチュエータ装置 |
| EP4318508A4 (en) * | 2021-03-24 | 2024-08-28 | LG Innotek Co., Ltd. | ACTUATOR DEVICE |
| US12549856B2 (en) | 2021-03-24 | 2026-02-10 | Lg Innotek Co., Ltd. | Actuator device |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2022543008A (ja) | 2022-10-07 |
| EP4007264A1 (en) | 2022-06-01 |
| US20220269146A1 (en) | 2022-08-25 |
| EP4007264A4 (en) | 2023-08-23 |
| US12306525B2 (en) | 2025-05-20 |
| TWI856145B (zh) | 2024-09-21 |
| JP7607629B2 (ja) | 2024-12-27 |
| CN114450933A (zh) | 2022-05-06 |
| CN114450933B (zh) | 2024-06-28 |
| TW202113449A (zh) | 2021-04-01 |
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