WO2021225358A1 - 카메라 엑추에이터 및 이를 포함하는 카메라 장치 - Google Patents
카메라 엑추에이터 및 이를 포함하는 카메라 장치 Download PDFInfo
- Publication number
- WO2021225358A1 WO2021225358A1 PCT/KR2021/005613 KR2021005613W WO2021225358A1 WO 2021225358 A1 WO2021225358 A1 WO 2021225358A1 KR 2021005613 W KR2021005613 W KR 2021005613W WO 2021225358 A1 WO2021225358 A1 WO 2021225358A1
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- WIPO (PCT)
- Prior art keywords
- mover
- axis direction
- image
- lens
- unit
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/60—Control of cameras or camera modules
- H04N23/69—Control of means for changing angle of the field of view, e.g. optical zoom objectives or electronic zooming
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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
- G03B3/00—Focusing arrangements of general interest for cameras, projectors or printers
- G03B3/10—Power-operated focusing
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B30/00—Camera modules comprising integrated lens units and imaging units, specially adapted for being embedded in other devices, e.g. mobile phones or vehicles
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B5/00—Adjustment of optical system relative to image or object surface other than for focusing
-
- 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
- G03B5/02—Lateral adjustment of lens
-
- 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
- H04N23/54—Mounting of pick-up tubes, electronic image sensors, deviation or focusing coils
-
- 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
- H04N23/686—Vibration or motion blur correction performed by mechanical compensation with a variable apex prism
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/60—Control of cameras or camera modules
- H04N23/68—Control of cameras or camera modules for stable pick-up of the scene, e.g. compensating for camera body vibrations
- H04N23/682—Vibration or motion blur correction
- H04N23/685—Vibration or motion blur correction performed by mechanical compensation
- H04N23/687—Vibration or motion blur correction performed by mechanical compensation by shifting the lens or sensor position
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B2205/00—Adjustment of optical system relative to image or object surface other than for focusing
- G03B2205/0007—Movement of one or more optical elements for control of motion blur
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B2205/00—Adjustment of optical system relative to image or object surface other than for focusing
- G03B2205/0007—Movement of one or more optical elements for control of motion blur
- G03B2205/0015—Movement of one or more optical elements for control of motion blur by displacing one or more optical elements normal 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
- G03B2205/0023—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
- G03B2205/0053—Driving means for the movement of one or more optical element
- G03B2205/0069—Driving means for the movement of one or more optical element using electromagnetic actuators, e.g. voice coils
Definitions
- the present invention relates to a camera actuator and a camera device including the same.
- a camera is a device that takes a picture or video of a subject, and is mounted on a portable device, a drone, a vehicle, or the like.
- the camera device has an image stabilization (IS) function that corrects or prevents image shake caused by user movement in order to improve image quality, and automatically adjusts the distance between the image sensor and the lens to align the focal length of the lens. It may have a zooming function of increasing or decreasing the magnification of a distant subject through an auto-focusing (AF) function and a zoom lens.
- IS image stabilization
- AF auto-focusing
- the resolution of the image sensor increases as the pixel becomes higher and the size of the pixel becomes smaller.
- the amount of light received for the same time decreases. Therefore, the higher the pixel camera, the more severe the image shake caused by hand shake that occurs when the shutter speed is slowed in a dark environment.
- ISO image stabilization
- OIS optical image stabilizer
- the movement of the camera is detected through a gyrosensor, etc., and the lens is tilted or moved based on the detected movement, or the camera module including the lens and the image sensor can be tilted or moved.
- the lens or a camera module including a lens and an image sensor is tilted or moved for OIS, it is necessary to additionally secure a space for tilting or moving around the lens or camera module.
- an actuator for OIS may be disposed around the lens.
- the actuator for the OIS may include two axes perpendicular to the Z, that is, the optical axis direction, that is, an actuator in charge of tilting the X-axis and an actuator in charge of tilting the Y-axis.
- the technical problem to be solved by the present invention is to provide a camera actuator that corrects image information using position information of a mover.
- the embodiment may provide a camera actuator that provides more accurate noise reduction by adjusting a change amount of a correction amount for position information according to a change in a focal length of a lens.
- a camera actuator includes: a mover including an optical member for changing a path of incident light; a driving unit for moving the mover in a first direction or a second direction perpendicular to the optical axis direction; an output unit for outputting a control signal for moving the mover; a first position sensor for detecting position information in the second direction of the mover; an image sensor for generating image information by receiving the light passing through the optical member; and a calculator configured to calculate a rotation correction amount of the image information based on the optical axis direction with respect to the image information by using the position information in the second direction of the mover.
- the incident light may be incident in the first direction from the mover and may be output in the optical axis direction.
- the optical member may be disposed to have an inclination that is not perpendicular to the first direction and the optical axis direction.
- the optical member may be disposed to be inclined with respect to a plane in any one of the first direction and the optical axis direction and the second direction.
- the optical member may be perpendicular to a plane in the first direction and the optical axis direction.
- the method may further include at least one lens moving in the optical axis direction, wherein the calculator adjusts a change amount of the rotation correction amount for the position information according to a change in a focal length of the at least one lens.
- the change amount of the rotation correction amount may increase when the focal length of the at least one lens increases, and decrease when the focal length of the at least one lens decreases.
- It may further include; a second position sensor for detecting the position information in the first direction of the mover.
- the calculator may not reflect the position information in the first direction of the mover to the rotation correction amount.
- a camera actuator includes: a mover including an optical member for changing a path of incident light; a driving unit for moving the mover in a first direction or a second direction perpendicular to the optical axis direction; an output unit for outputting a control signal for moving the mover; a second position sensor for detecting position information in the second direction of the mover; an image sensor for generating image information by receiving the light passing through the optical member; and a calculator configured to calculate a rotation correction amount for rotating the image sensor based on the optical axis direction by using the position information in the second direction of the mover.
- a camera actuator that corrects image information using location information of a mover.
- the embodiment may implement a camera actuator that provides more accurate noise reduction by adjusting a change amount of a correction amount for position information according to a change in a focal length of a lens.
- the actuator for OIS can be efficiently disposed without increasing the overall size of the camera device.
- tilting in the X-axis direction and tilting in the Y-axis direction do not cause magnetic field interference with each other, and tilting in the X-axis direction and tilting in the Y-axis direction can be implemented with a stable structure, and for AF or Even with the actuator for zooming, it does not cause magnetic field interference, so precise OIS function can be realized.
- FIG. 1 is a perspective view of a camera module according to an embodiment
- FIG. 2 is an exploded perspective view of a camera module according to an embodiment
- FIG. 3 is a cross-sectional view taken along line AA' in FIG. 1,
- FIG. 4 is an exploded perspective view of a first camera actuator according to an embodiment
- FIG. 5 is a perspective view of a first camera actuator according to an embodiment in which a shield can and a substrate are removed;
- FIG. 6 is a cross-sectional view taken along line BB' in FIG. 5;
- FIG. 7 is a cross-sectional view taken along CC' in FIG. 5;
- FIG. 8 is a perspective view of a second camera actuator according to the embodiment.
- FIG. 9 is an exploded perspective view of a second camera actuator according to the embodiment.
- FIG. 10 is a cross-sectional view taken along DD' in FIG. 8;
- FIG. 11 is a cross-sectional view taken along line EE' in FIG. 8;
- FIG. 12 is a block diagram showing the configuration of a camera module according to an embodiment
- FIG. 13 is a block diagram of a control unit according to an embodiment
- FIG. 14 is a perspective view of a mover in the first camera actuator according to the embodiment.
- FIG. 15 is a cross-sectional view of a first camera actuator according to an embodiment
- 16 is a view showing image information according to movement in a second direction of a mover in a first camera actuator according to an embodiment
- FIG. 17 is a view for explaining the image information of FIG. 16,
- FIG. 18 is a view showing image information according to movement in a first direction of a mover in a first camera actuator according to an embodiment
- FIG. 19 is a view for explaining the image information of FIG. 18,
- 20 and 21 are diagrams for explaining the operation of the control unit of the camera module according to the embodiment to adjust the rotation correction amount according to the second position information
- 22 is a view for explaining driving of a control unit according to another embodiment
- FIG. 23 is a flowchart of a driving method of a control unit according to an embodiment
- FIG. 24 is a perspective view of a mobile terminal to which a camera module according to an embodiment is applied;
- 25 is a perspective view of a vehicle to which a camera module according to an embodiment is applied.
- Terms including an ordinal number such as second, first, etc. may be used to describe various elements, but the elements are not limited by the terms. The terms are used only for the purpose of distinguishing one component from another.
- the second component may be referred to as the first component, and similarly, the first component may also be referred to as the second component. and/or includes a combination of a plurality of related listed items or any of a plurality of related listed items.
- FIG. 1 is a perspective view of a camera module according to an embodiment
- FIG. 2 is an exploded perspective view of a camera module according to an embodiment
- FIG. 3 is a cross-sectional view taken along line AA′ in FIG. 1 .
- the camera module 1000 may include a cover CV, a first camera actuator 1100 , a second camera actuator 1200 , and a circuit board 1300 .
- the first camera actuator 1100 may be used as a first actuator
- the second camera actuator 1200 may be used as a second actuator.
- the cover CV may cover the first camera actuator 1100 and the second camera actuator 1200 .
- the coupling force between the first camera actuator 1100 and the second camera actuator 1200 may be improved by the cover CV.
- the cover CV may be made of a material that blocks electromagnetic waves. Accordingly, the first camera actuator 1100 and the second camera actuator 1200 in the cover CV can be easily protected.
- the first camera actuator 1100 may be an OP1tical Image Stabilizer (OIS) actuator.
- OIS OP1tical Image Stabilizer
- the first camera actuator 1100 may include a lens.
- the first camera actuator 1100 may include fixed focal length les disposed on a predetermined barrel (not shown). Fixed focal length les may also be referred to as “single focal length lenses” or “single focal length lenses”.
- the first camera actuator 1100 may change the path of the light.
- the first camera actuator 1100 may vertically change the optical path through an optical member (eg, a mirror or a prism) therein.
- an optical member eg, a mirror or a prism
- the second camera actuator 1200 may be disposed at a rear end of the first camera actuator 1100 .
- the second camera actuator 1200 may be coupled to the first camera actuator 1100 . And the mutual coupling may be made by various methods.
- the second camera actuator 1200 may be a zoom actuator or an auto focus (AF) actuator.
- the second camera actuator 1200 may support one or a plurality of lenses and may perform an auto-focusing function or a zoom function by moving the lenses according to a control signal of a predetermined control unit.
- the circuit board 1300 may be disposed behind the second camera actuator 1200 .
- the circuit board 1300 may be electrically connected to the second camera actuator 1200 and the first camera actuator 1100 . Also, there may be a plurality of circuit boards 1300 .
- the camera module according to the embodiment may be formed of a single or a plurality of camera modules.
- the plurality of camera modules may include a first camera module and a second camera module.
- the first camera module may include a single or a plurality of actuators.
- the first camera module may include a first camera actuator 1100 and a second camera actuator 1200 .
- the second camera module is disposed in a predetermined housing (not shown) and may include an actuator (not shown) capable of driving the lens unit.
- the actuator may be a voice coil motor, a micro actuator, a silicon actuator, etc., and may be applied in various ways such as an electrostatic method, a thermal method, a bimorph method, an electrostatic force method, and the like, but is not limited thereto.
- the camera actuator may be referred to as an actuator or the like.
- a camera module including a plurality of camera modules may be mounted in various electronic devices such as a mobile terminal.
- the camera module may include a first camera actuator 1100 performing an OIS function and a second camera actuator 1200 performing a zooming function and an AF function.
- Light may be incident into the camera module through the opening area located on the upper surface of the first camera actuator 1100 . That is, the light may be incident into the interior of the first camera actuator 1100 along the X-axis direction, and the optical path may be changed in the vertical direction (eg, the Z-axis direction) through the optical member.
- the light may pass through the second camera actuator 1200 and be incident to the image sensor IS located at one end of the second camera actuator 1200 (PATH).
- the optical axis direction may be the Z axis direction, which is the direction of light incident to the image sensor.
- the optical axis may be a central axis of incident light, but hereinafter may correspond to a Z-axis direction in the drawing as a movement direction of light after being reflected through the optical member.
- the bottom means one side in the first direction.
- the first direction is the X-axis direction in the drawing, and may be used interchangeably with the second axis direction.
- the second direction is the Y-axis direction in the drawing and may be used interchangeably with the first axis direction.
- the second direction is a direction perpendicular to the first direction.
- the third direction is the Z-axis direction in the drawing, and may be used interchangeably with the third axis direction. The direction is perpendicular to both the first direction and the second direction.
- the third direction (Z-axis direction) corresponds to the direction of the optical axis
- the first direction (X-axis direction) and the second direction (Y-axis direction) are directions perpendicular to the optical axis and to be tilted by the first camera actuator.
- the optical axis direction is the third direction (Z axis direction) and will be described below based on this.
- the camera module according to the embodiment may improve the spatial limitation of the first camera actuator and the second camera actuator by changing the path of light. That is, the camera module according to the embodiment may extend the optical path while minimizing the thickness of the camera module in response to the change in the path of the light. Furthermore, it should be understood that the second camera actuator may provide a high range of magnification by controlling a focus or the like in the extended optical path.
- the camera module according to the embodiment can implement OIS through control of the optical path through the first camera actuator, thereby minimizing the occurrence of a decent or tilt phenomenon, and providing the best optical characteristics. can pay
- the second camera actuator 1200 may include an optical system and a lens driver.
- a lens driver for example, at least one of a first lens assembly, a second lens assembly, a third lens assembly, and a guide pin may be disposed.
- the second camera actuator 1200 may include a coil and a magnet to perform a high-magnification zooming function.
- the first lens assembly and the second lens assembly may be a moving lens that moves through a coil, a magnet, and a guide pin
- the third lens assembly may be a fixed lens, but is not limited thereto.
- the third lens assembly may function as a concentrator to image light at a specific position, and the first lens assembly may re-image an image formed by the third lens assembly, which is a concentrator, to another location. It can perform the function of a variable (variator).
- the magnification change may be large because the distance to the subject or the image distance is changed a lot, and the first lens assembly as the variable magnification may play an important role in changing the focal length or magnification of the optical system.
- the image formed in the first lens assembly which is a variable changer
- the second lens assembly may perform a position compensation function for the image formed by the variable magnifier.
- the second lens assembly may perform a compensator function that accurately forms an image formed by the first lens assembly, which is a variable changer, at an actual image sensor position.
- the first lens assembly and the second lens assembly may be driven by electromagnetic force due to an interaction between a coil and a magnet. The above description may be applied to a lens assembly to be described later.
- the actuator for OIS and the actuator for AF or zoom are disposed according to an embodiment of the present invention
- magnetic field interference with the magnet for AF or zoom can be prevented when OIS is driven. Since the first driving magnet of the first camera actuator 1100 is disposed separately from the second camera actuator 1200, magnetic field interference between the first camera actuator 1100 and the second camera actuator 1200 can be prevented.
- OIS may be used interchangeably with terms such as hand shake correction, optical image stabilization, optical image correction, and image stabilization.
- FIG. 4 is an exploded perspective view of a second camera actuator according to an embodiment.
- the first camera actuator 1100 includes a first shield can (not shown), a first housing 1120 , a mover 1130 , a rotating unit 1140 , and a first driving unit 1150 . ) is included.
- the mover 1130 may include a holder 1131 and an optical member 1132 seated on the holder 1131 .
- the mover 1130 may change the path of the incident light.
- the rotating unit 1140 includes a rotating plate 1141 , a first magnetic body 1142 having a coupling force with the rotating plate 1141 , and a second magnetic body 1143 positioned in the rotating plate 1141 .
- the first driving unit 1150 includes a driving magnet 1151 , a driving coil 1152 , a Hall sensor unit 1153 , and a first substrate unit 1154 .
- the first shield can (not shown) may be positioned at the outermost side of the first camera actuator 1100 to surround the rotating part 1140 and the first driving part 1150 to be described later.
- the first shield can (not shown) may block or reduce electromagnetic waves generated from the outside. Accordingly, the occurrence of a malfunction in the rotating unit 1140 or the first driving unit 1150 may be reduced.
- the first housing 1120 may be located inside the first shield can (not shown). In addition, the first housing 1120 may be located inside the first substrate unit 1154 to be described later. The first housing 1120 may be coupled to or fitted to a first shield can (not shown).
- the first housing 1120 may include a plurality of housing sides. a first housing side 1121 , a second housing side 1122 , a third housing side 1123 , and a fourth housing side 1124 .
- the first housing side 1121 and the second housing side 1122 may be disposed to face each other. Also, the third housing side 1123 and the fourth housing side 1124 may be disposed between the first housing side 1121 and the second housing side 1122 .
- the third housing side 1123 may abut the first housing side 1121 , the second housing side 1122 , and the fourth housing side 1124 .
- the third housing side portion 1123 may include a bottom surface as a lower portion from the first housing 1120 .
- first housing side 1121 may include a first housing hole 1121a.
- a first coil 1152a to be described later may be positioned in the first housing hole 1121a.
- the second housing side 1122 may include a second housing hole 1122a.
- a second coil 1152b to be described later may be positioned in the second housing hole 1122a.
- the first coil 1152a and the second coil 1152b may be coupled to the first substrate unit 1154 .
- the first coil 1152a and the second coil 1152b may be electrically connected to the first substrate unit 1154 so that current may flow. This current is a component of the electromagnetic force that the second camera actuator can tilt with respect to the X-axis.
- the third housing side portion 1123 may include a third housing hole 1123a.
- a third coil 1152c to be described later may be positioned in the third housing hole 1123a.
- the third coil 1152c may be coupled to the first substrate unit 1154 .
- the third coil 1152c may be electrically connected to the first substrate unit 1154 so that a current may flow. This current is a component of electromagnetic force that allows the second camera actuator to tilt with respect to the Y-axis.
- the fourth housing side 1124 may include a first housing groove 1124a.
- a first magnetic body 1142 to be described later may be disposed in a region facing the first housing groove 1124a. Accordingly, the first housing 1120 may be coupled to the rotation plate 1141 by magnetic force or the like.
- first housing groove 1124a may be located on the inner surface or the outer surface of the fourth housing side 1124 . Accordingly, the first magnetic body 1142 may also be disposed to correspond to the position of the first housing groove 1124a.
- first housing 1120 may include a receiving portion 1125 formed by the first to fourth housing sides 1121 to 1224 .
- a mover 1130 may be positioned in the receiving part 1125 .
- the mover 1130 includes a holder 1131 and an optical member 1132 mounted on the holder 1131 .
- the holder 1131 may be seated in the receiving part 1125 of the first housing 1120 .
- the holder 1131 includes the first housing side 1121, the second housing side 1122, the third housing side 1123, and the first prism outer surface corresponding to the fourth housing side 1124 to the fourth prism, respectively. side may be included.
- a seating groove in which the second magnetic body 1143 can be seated may be disposed on an outer surface of the fourth prism facing the fourth housing side 1124 .
- the optical member 1132 may be seated on the holder 1131 .
- the holder 1131 may have a seating surface, and the seating surface may be formed by a receiving groove.
- the optical member 1132 may include a reflector disposed therein.
- the optical member 1132 may reflect light reflected from the outside (eg, an object) into the camera module.
- the optical member 1132 may improve the spatial limit of the first camera actuator and the second camera actuator by changing the path of the reflected light.
- the camera module may extend the optical path while minimizing thickness to provide a high range of magnifications.
- the optical member 1132 may include a prism or a mirror.
- the rotating unit 1140 includes a rotating plate 1141 , a first magnetic body 1142 having a coupling force with the rotating plate 1141 , and a second magnetic body 1143 positioned in the rotating plate 1141 .
- the rotation plate 1141 may be coupled to the above-described mover 1130 and the first housing 1120 .
- the rotation plate 1141 may include an additional magnetic material (not shown) positioned therein.
- the rotation plate 1141 may be disposed adjacent to the optical axis. Accordingly, the actuator according to the embodiment can easily change the optical path according to the first and second axis tilt to be described later.
- the rotation plate 1141 may include a first protrusion spaced apart in a first direction (X-axis direction) and a second protrusion spaced apart in a second direction (Y-axis direction). Also, the first protrusion and the second protrusion may protrude in opposite directions. A detailed description thereof will be given later.
- the first magnetic body 1142 may include a plurality of yokes, and the plurality of yokes may be positioned to face each other with respect to the rotation plate 1141 .
- the first magnetic body 1142 may be formed of a plurality of yokes facing each other.
- the rotation plate 1141 may be located between the plurality of yokes.
- the first magnetic body 1142 may be located in the first housing 1120 as described above. Also, as described above, the first magnetic body 1142 may be seated on the inner surface or the outer surface of the fourth housing side 1124 . For example, the first magnetic body 1142 may be seated in a groove formed on the outer surface of the fourth housing side 1124 . Alternatively, the first magnetic body 1142 may be seated in the above-described first housing groove 1124a.
- the second magnetic body 1143 may be located on the outer surface of the mover 1130 , particularly the holder 1131 .
- the rotation plate 1141 can be easily coupled to the first housing 1120 and the mover 1130 by a coupling force between the second magnetic body 1143 and the first magnetic body 1142 inside.
- the positions of the first magnetic body 1142 and the second magnetic body 1143 may be moved to each other.
- an attractive force or a repulsive force may act between the first magnetic body 1142 and the second magnetic body 1143 .
- the attractive force of the first magnetic body 1142 and the second magnetic body 1143 may press the rotation plate 1141 between the holder and the housing. Accordingly, the posture or position of the rotation plate 1141 may be maintained except for the X/Y tilt by the first driving unit 1150 .
- the first driving unit 1150 includes a driving magnet 1151 , a driving coil 1152 , a Hall sensor unit 1153 , and a first substrate unit 1154 .
- the driving magnet 1151 may include a plurality of magnets.
- the driving magnet 1151 may include a first magnet 1151a , a second magnet 1151b , and a third magnet 1151c .
- the first magnet 1151a , the second magnet 1151b , and the third magnet 1151c may be located on the outer surface of the holder 1131 , respectively.
- the first magnet 1151a and the second magnet 1151b may be positioned to face each other.
- the third magnet 1151c may be located on the bottom of the outer surface of the holder 1131 . A detailed description thereof will be given later.
- the driving coil 1152 may include a plurality of coils.
- the driving coil 1152 may include a first coil 1152a , a second coil 1152b , and a third coil 1152c .
- the first coil 1152a may be positioned to face the first magnet 1151a. Accordingly, the first coil 1152a may be located in the first housing hole 1121a of the first housing side 1121 as described above.
- the second coil 1152b may be positioned to face the second magnet 1151b. Accordingly, the second coil 1152b may be located in the second housing hole 1122a of the second housing side 1122 as described above.
- the first coil 1152a may be positioned to face the second coil 1152b. That is, the first coil 1152a may be symmetrically positioned with the second coil 1152b in the first direction (X-axis direction). This may be equally applied to the first magnet 1151a and the second magnet 1151b. That is, the first magnet 1151a and the second magnet 1151b may be symmetrically positioned with respect to the first direction (X-axis direction).
- the first coil 1152a , the second coil 1152b , the first magnet 1151a , and the second magnet 1151b may be disposed to overlap at least partially in the second direction (Y-axis direction). With this configuration, the X-axis tilting can be accurately performed without inclination to one side by the electromagnetic force between the first coil 1152a and the first magnet 1151a and the electromagnetic force between the second coil 1152b and the second magnet 1151b. .
- the third coil 1152c may be positioned to face the third magnet 1151c. Accordingly, the third coil 1152c may be positioned in the third housing hole 1123a of the third housing side 1123 as described above.
- the third coil 1152c may perform Y-axis tilting of the mover 1130 and the rotating unit 1140 with respect to the first housing 1120 by generating electromagnetic force with the third magnet 1151c.
- X-axis tilting means tilting based on the X-axis
- Y-axis tilting means tilting based on the Y-axis
- the Hall sensor unit 1153 may include a plurality of Hall sensors.
- the Hall sensor corresponds to and is used interchangeably with a 'position sensor' to be described later.
- the hall sensor may be used in various terms such as a position sensing sensor, a position sensing unit, and a position sensing unit.
- the Hall sensor unit 1153 may include a first Hall sensor 1153a, a second Hall sensor 1153b, and a third Hall sensor 1153c.
- the first Hall sensor 1153a may be located inside the first coil 1153a.
- the second Hall sensor 1153b may be symmetrically disposed with the first Hall sensor 1153a in the first direction (X-axis direction) and the third direction (Z-axis direction).
- the second Hall sensor 1153b may be located inside the second coil 1152b.
- the first Hall sensor 1153a may detect a change in magnetic flux inside the first coil 1153a.
- the second Hall sensor 1153b may detect a change in magnetic flux in the second coil 1153b. Accordingly, position sensing between the first and second magnets 1151a and 1151b and the first and second Hall sensors 1153a and 1153b may be performed.
- the first and second Hall sensors 1153a and 1153b may control the X-axis tilt through the second camera actuator according to the embodiment.
- the third Hall sensor 1153c may be located inside the third coil 1153c.
- the third Hall sensor 1153c may detect a change in magnetic flux inside the third coil 1153c. Accordingly, position sensing between the third magnet 1151c and the third Hall sensor 1153c may be performed.
- the second camera actuator according to the embodiment may control the Y-axis tilt through this.
- the first substrate unit 1154 may be located under the first driving unit 1150 .
- the first substrate unit 1154 may be electrically connected to the driving coil 1152 and the Hall sensor unit 1153 .
- the first substrate unit 1154 may be coupled to the driving coil 1152 and the Hall sensor unit 1153 by SMT. However, it is not limited to this method.
- the first substrate unit 1154 may be positioned between the first shield can (not shown) and the first housing 1120 to be coupled to the shield can 1101 and the first housing 1120 .
- the coupling method may be variously made as described above.
- the driving coil 1152 and the Hall sensor unit 1153 may be located in the outer surface of the first housing 1120 through the coupling.
- the first board unit 1154 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 (RigidFlexible PCB). can do. However, it is not limited to this type.
- FIG. 5 is a perspective view of the first camera actuator according to the embodiment in which the shield can and the substrate are removed
- FIG. 6 is a sectional view taken along line BB′ in FIG. 5
- FIG. 7 is a cross-sectional view taken along line CC′ in FIG. 5 .
- the first coil 1152a may be located on the first housing side 1121 .
- first coil 1152a and the first magnet 1151a may be positioned to face each other.
- the first magnet 1151a may at least partially overlap the first coil 1152a in the second direction (Y-axis direction).
- the second coil 1152b and the second magnet 1151b may be positioned to face each other.
- the second magnet 1151b may at least partially overlap the second coil 1152b in the second direction (Y-axis direction).
- first coil 1152a and the second coil 1152b overlap in the second direction (Y-axis direction), and the first magnet 1151a and the second magnet 1151b are disposed in the second direction (Y-axis direction).
- the electromagnetic force applied to the outer surface of the holder is located on the parallel axis in the second direction (Y-axis direction) so that the X-axis tilt is accurate and precise. can be performed.
- first receiving groove (not shown) may be located on the outer surface of the fourth holder.
- first protrusions PR1a and PR1b may be disposed in the first receiving groove. Accordingly, when performing X-axis tilt, the first protrusions PR1a and PR1b may be the reference axis (or rotation axis) of the tilt. Accordingly, the rotation plate 1141 and the mover 1130 may move left and right.
- the second protrusion PR2 may be seated in the groove of the inner surface of the fourth housing side 1124 as described above.
- the rotation plate and the mover may rotate with the second protrusion PR2 as the reference axis of the Y-axis tilt.
- OIS may be performed by the first protrusion and the second protrusion.
- the first protrusion and the second protrusion may be disposed on opposite surfaces with respect to the base. That is, the first protrusion may be disposed on any one of the first surface and the second surface of the base. And the second protrusion may be disposed on the other one of the first surface and the second surface of the base.
- a Y-axis tilt may be performed. That is, the OIS may be implemented by rotating in the first direction (X-axis direction).
- the third magnet 1151c disposed under the holder 1131 may form an electromagnetic force with the third coil 1152c to tilt or rotate the mover 1130 in the first direction (X-axis direction). have.
- the rotation plate 1141 is to be coupled to the first housing 1120 and the mover 1130 by the first magnetic body 1142 in the first housing 1120 and the second magnetic body 1143 in the mover 1130 .
- the first protrusions PR1 may be spaced apart from each other in the first direction (X-axis direction) and supported by the first housing 1120 .
- the rotation plate 1141 may rotate or tilt the second protrusion PR2 protruding toward the mover 1130 about a reference axis (or rotation axis). That is, the rotation plate 1141 may perform Y-axis tilt with respect to the second protrusion PR2 as a reference axis.
- the mover 1130 is moved along the X-axis by the first electromagnetic forces F1A and F1B between the third magnet 1151c disposed in the third seating groove and the third coil 1152c disposed on the side of the third substrate.
- the OIS may be implemented while rotating (X1->X1b or X1a) at a first angle ⁇ 1 in the direction.
- the first angle ⁇ 1 may be ⁇ 1° to ⁇ 3°.
- the present invention is not limited thereto.
- an X-axis tilt may be performed. That is, the OIS may be implemented by rotating in the second direction (Y-axis direction).
- the OIS may be implemented while the mover 1130 tilts or rotates (or tilts the X-axis) in the Y-axis direction.
- the first magnet 1151a and the second magnet 1151b disposed in the holder 1131 form an electromagnetic force with the first coil 1152a and the second coil 1152b, respectively, in the second direction Y axial direction) by tilting or rotating the rotation plate 1141 and the mover 1130 .
- the rotation plate 1141 may rotate or tilt the first protrusion PR1 in the second direction with respect to the reference axis (or rotation axis) (X-axis tilt).
- the second electromagnetic force F2A between the first and second magnets 1151a and 1151b disposed in the first seating groove and the first and second coil units 1152a and 1152b disposed on the side of the first and second substrates; F2B), while rotating the mover 1130 at a second angle ⁇ 2 in the Y-axis direction (Y1->Y1a or Y1b), the OIS may be implemented.
- the second angle ⁇ 2 may be ⁇ 1° to ⁇ 3°.
- the present invention is not limited thereto.
- the first actuator moves the rotation plate 1141 and the mover 1130 in the first direction (X-axis direction) or the second direction ( By controlling the rotation in the Y-axis direction), it is possible to minimize the occurrence of a decent or tilt phenomenon and provide the best optical characteristics when implementing OIS.
- 'Y-axis tilt' corresponds to rotation or tilt in the first direction (X-axis direction)
- 'X-axis tilt' corresponds to rotation or tilt in the second direction (Y-axis direction). do.
- FIG. 8 is a perspective view of a second camera actuator according to the embodiment
- FIG. 9 is an exploded perspective view of the second camera actuator according to the embodiment
- FIG. 10 is a cross-sectional view taken along line DD′ in FIG. 8
- FIG. 11 is FIG. It is a cross-sectional view cut from EE'.
- the second camera actuator 1200 includes a lens unit 1220 , a second housing 1230 , a second driving unit 1250 , a base unit (not shown), and a second camera actuator 1200 .
- Two substrate units 1270 may be included.
- the second camera actuator 1200 may further include a second shield can (not shown), an elastic part (not shown), and a bonding member (not shown).
- the second camera actuator 1200 according to the embodiment may further include an image sensor IS.
- the second shield can (not shown) is located in one region (eg, the outermost side) of the second camera actuator 1200 and includes components (the lens unit 1220 , the second housing 1230 , and the elastic unit to be described later). (not shown), the second driving unit 1250, the base unit (not shown), the second substrate unit 1270, and the image sensor IS).
- the second shield can (not shown) may block or reduce electromagnetic waves generated from the outside. Accordingly, the occurrence of a malfunction in the second driving unit 1250 may be reduced.
- the lens unit 1220 may be located in the second shield can (not shown).
- the lens unit 1220 may move in a third direction (Z-axis direction). Accordingly, the above-described AF function may be performed.
- the lens unit 1220 may include a lens assembly 1221 and a bobbin 1222 .
- the lens assembly 1221 may include at least one lens. In addition, there may be a plurality of lens assemblies 1221 , but one of them will be described below.
- the lens assembly 1221 is coupled to the bobbin 1222 and can move in the third direction (Z-axis direction) by electromagnetic force generated from the fourth magnet 1252a and the second magnet 1252b coupled to the bobbin 1222 . .
- the bobbin 1222 may include an opening area surrounding the lens assembly 1221 .
- the bobbin 1222 may be coupled to the lens assembly 1221 by various methods.
- the bobbin 1222 may include a groove in the side thereof, and may be coupled to the fourth magnet 1252a and the second magnet 1252b through the groove. A bonding member or the like may be applied to the groove.
- the bobbin 1222 may be coupled to an elastic part (not shown) at the upper end and the rear end. Accordingly, the bobbin 1222 may be supported by an elastic part (not shown) to move in the third direction (Z-axis direction). That is, the position of the bobbin 1222 may be maintained while being maintained in the third direction (Z-axis direction).
- the elastic part (not shown) may be formed of a leaf spring.
- the second housing 1230 may be disposed between the lens unit 1220 and the second shield can (not shown). In addition, the second housing 1230 may be disposed to surround the lens unit 1220 .
- a hole may be formed in a side of the second housing 1230 .
- a fourth coil 1251a and a fifth coil 1251b may be disposed in the hole.
- the hole may be positioned to correspond to the groove of the bobbin 1222 described above.
- the fourth magnet 1252a may be positioned to face the fourth coil 1251a. Also, the second magnet 1252b may be positioned to face the fifth coil 1251b.
- the elastic part (not shown) may include a first elastic member (not shown) and a second elastic member (not shown).
- the first elastic member (not shown) may be coupled to the upper surface of the bobbin 1222 .
- the second elastic member (not shown) may be coupled to the lower surface of the bobbin 1222 .
- the first elastic member (not shown) and the second elastic member (not shown) may be formed of a leaf spring as described above.
- the first elastic member (not shown) and the second elastic member (not shown) may provide elasticity with respect to the movement of the bobbin 1222 .
- the second driving unit 1250 may provide driving forces F3 and F4 for moving the lens unit 1220 in the third direction (Z-axis direction).
- the second driving unit 1250 may include a driving coil 1251 and a driving magnet 1252 .
- the lens unit 1220 may move in the third direction (Z-axis direction) by the electromagnetic force formed between the driving coil 1251 and the driving magnet 1252 .
- the lens unit 1220 may include a plurality of lens assemblies, and may move in the third direction (Z-axis direction) independently or subordinate to each other by the second driving unit 1250 .
- the driving coil 1251 may include a fourth coil 1251a and a fifth coil 1251b.
- the fourth coil 1251a and the fifth coil 1251b may be disposed in a hole formed in the side of the second housing 1230 .
- the fourth coil 1251a and the fifth coil 1251b may be electrically connected to the second substrate unit 1270 . Accordingly, the fourth coil 1251a and the fifth coil 1251b may receive current or the like through the second substrate unit 1270 .
- the driving magnet 1252 may include a fourth magnet 1252a and a fifth magnet 1252b.
- the fourth magnet 1252a and the fifth magnet 1252b may be disposed in the aforementioned groove of the bobbin 1222 and may be positioned to correspond to the fourth coil 1251a and the fifth coil 1251b.
- the base unit (not shown) may be positioned between the lens unit 1220 and the image sensor IS.
- a component such as a filter may be fixed to the base portion (not shown).
- the base part (not shown) may be disposed to surround the image sensor IS.
- the second camera actuator may be a zoom actuator or an auto focus (AF) actuator.
- the second camera actuator may support one or a plurality of lenses and may perform an autofocusing function or a zooming function by moving the lenses according to a control signal of a predetermined control unit.
- the second camera actuator may be a fixed zoom or a continuous zoom.
- the second camera actuator may provide movement of the lens assembly 1221 .
- the second camera actuator may be formed of a plurality of lens assemblies.
- the second camera actuator may include at least one of a first lens assembly (not shown), a second lens assembly (not shown), a third lens assembly (not shown), and a guide pin (not shown). can be placed.
- the second camera actuator may perform a high-magnification zooming function through the driving unit.
- the first lens assembly (not shown) and the second lens assembly (not shown) may be a moving lens that moves through a driving unit and a guide pin (not shown), and the third lens The assembly (not shown) may be a fixed lens, but is not limited thereto.
- the third lens assembly may perform a function of a concentrator to image light at a specific location, and the first lens assembly (not shown) may serve as a concentrator. (not shown) may perform a variator function to reimage the image formed in another place.
- the first lens assembly in the first lens assembly (not shown), the distance to the subject or the image distance is changed a lot, so the magnification change may be large. can play an important role in
- the image formed in the first lens assembly (not shown), which is a variable changer may be slightly different depending on the location.
- the second lens assembly may perform a position compensation function for the image formed by the variable changer.
- the second lens assembly functions as a compensator to accurately image the image formed by the first lens assembly (not shown), which is a variable changer, at the actual image sensor position. can be done
- the image sensor IS may be located inside or outside the second camera actuator. In an embodiment, as shown, the image sensor IS may be located inside the second camera actuator.
- the image sensor IS may receive light and convert the received light into an electrical signal.
- the image sensor IS may have a plurality of pixels in the form of an array. And the image sensor IS may be located on the optical axis.
- FIG. 12 is a block diagram illustrating a configuration of a camera module according to an embodiment
- FIG. 13 is a block diagram of a control unit according to an embodiment.
- the camera module includes an image sensor 110 , an image signal processing unit 120 , a display unit 130 , a first driving unit 140 , a second driving unit 150 , and a first position sensor unit 160 . ), a second position sensor unit 170 , a storage unit 180 , and a control unit 190 .
- the image sensor 110 processes the optical image of the subject formed through the lens. To this end, the image sensor 110 may pre-process the image acquired through the lens. Also, the image sensor 110 may convert the pre-processed image into electrical data and output the converted image.
- This image sensor 110 corresponds to the above-described image sensor IS.
- the image sensor 110 has a form in which a plurality of photodetectors are integrated as respective pixels, and may convert image information of a subject into electrical data and output the converted image information.
- image information may be a concept including electrical data or a signal received by a plurality of photodetectors as each pixel.
- the image sensor 110 accumulates an input amount of light, and outputs an image photographed by a lens according to the accumulated amount of light according to a vertical synchronization signal.
- the image acquisition is performed by the image sensor 110 that converts light reflected from the subject into an electrical signal.
- a color filter is required to obtain a color image using the image sensor 110 , and for example, a color filter array (CFA) filter may be employed.
- the CFA passes only light representing one color per pixel, has a regularly arranged structure, and has various shapes depending on the arrangement structure.
- the image signal processing unit 120 processes the image output through the image sensor 110 in units of frames.
- the image signal processing unit 120 may also be referred to as an ISP (Image Signal Processor).
- the image signal processing unit 120 may include a lens shading compensator (not shown).
- the lens shading compensator is a block for compensating for a lens shading phenomenon that appears differently in the amount of light in the center and edge of the image, and receives a lens shading setting value from the control unit 190 to be described later, and adjusts the color of the center and edge of the image. compensate
- the lens shading compensator may receive a shading variable set differently according to the type of illumination, and process the lens shading of the image according to the received variable. Accordingly, the lens shading compensator may perform the lens shading process by applying a different shading degree according to the type of illumination.
- the lens shading compensator may receive a shading variable set differently according to an automatic exposure weight applied to a specific area of the image to prevent a saturation phenomenon occurring in the image, and process the lens shading of the image according to the received variable. . More specifically, the lens shading compensator compensates for the brightness change occurring in the edge region of the image signal as the automatic exposure weight is applied to the central region of the image signal. That is, when the image signal is saturated due to lighting, the intensity of light decreases from the center to the outside in the form of concentric circles, so the lens shading compensator amplifies the edge signal of the image signal to compensate for the brightness compared to the center.
- the image signal processing unit 120 may measure the sharpness of an image obtained through the image sensor 110 . That is, the image signal processing unit 120 may measure the sharpness of the image in order to check the focus accuracy of the image acquired through the image sensor 110 . Sharpness may be measured for each image obtained according to the position of the focus lens.
- the display unit 130 may display a captured image under the control of the controller 190, which will be described later, and may display a setting screen necessary for taking a picture or a screen for selecting a user's operation.
- the display unit 130 may be located on the side of the mobile terminal outside the camera module.
- the first driving unit 140 may correspond to the above-described first driving unit 1140 (refer to FIG. 4 ). That is, the first driver 140 may perform electromagnetic interaction between the first to third coils and the first to third magnets in response to the control signal received from the controller 190 . And OIS can be performed by this interaction. In other words, the first driving unit 140 may move the mover in a first direction (X-axis direction) or a second direction (Y-axis direction) perpendicular to the optical axis direction (third direction or Z-axis direction).
- the second driving unit 150 may correspond to the above-described second driving unit 1250 (refer to FIG. 8 ). That is, the second driving unit 150 may perform electromagnetic interaction between the fourth to fifth coils and the fourth to fifth magnets in response to the control signal received from the controller 190 . And zooming or AF may be performed by this interaction. In other words, the second driving unit 150 may move the lens unit in the third direction (Z-axis direction). For example, the focus lens may be moved in the optical axis direction.
- the first position sensor unit 160 includes a plurality of Hall sensors of the described first camera actuator, and thus detects a position of a mover or an optical member. That is, the first position sensor unit 160 may detect the position of the first driving unit disposed on the mover. This is to control the position of a mover or an optical member (eg, a prism or a mirror). And the first position sensor unit 160 provides position data for moving the mover or the optical member.
- an optical member eg, a prism or a mirror
- the second position sensor unit 170 includes a plurality of Hall sensors of the described second camera actuator, and thus detects the position of the lens unit 1220 (refer to FIG. 9 ). That is, the second position sensor unit 170 may detect the position of the second driver adjacent to the lens unit 1220 . This is to control the position of the lens unit. And the second position sensor unit 170 provides position data for moving the lens unit.
- the storage unit 180 stores data necessary for the camera module to operate.
- information on a zoom position and a focus position for each distance from a subject may be stored in the storage unit 180 . That is, the focus position may be a position of the focus lens for accurately focusing the subject.
- the focus position may be changed according to the zoom position with respect to the zoom lens and the distance from the subject. Accordingly, the storage unit 180 stores the zoom position according to the distance and data on the focus position corresponding to the zoom position.
- the storage unit 180 may store information about a driving signal (eg, current) applied to a coil corresponding to the motion information to compensate for the tilt or motion information of the camera module.
- a driving signal eg, current
- the controller 190 controls the overall operation of the camera module.
- the controller 190 may control the first position sensor unit 160 and the second position sensor unit 170 to provide an anti-shake function, an auto focus function, and a magnification adjustment function.
- the controller 190 may receive the position information of the mover or the optical member through the first position sensor unit 160 , and readjust the tilt amount of the mover using the position information.
- the control unit 190 may use the current position information of the mover or the optical member through the first position sensor unit 160 in order to move the mover or the optical member to the target position.
- the controller 190 controls to move the mover or the optical member to the target position based on the current position of the mover or the optical member.
- a signal may be supplied to the first driving unit 140 .
- the controller 190 may receive position information of the lens unit through the second position sensor unit 170 to readjust the position of the lens unit.
- the controller 190 may use the current position information of the lens unit through the second position sensor unit 170 to move the lens unit to the target position.
- control unit 190 supplies a control signal for moving the lens unit to the target position based on the current position of the lens unit to the second driving unit 150 .
- each of the first position sensor unit 160 and the second position sensor unit 170 may include a plurality of position sensors (corresponding to the above-described 'Hall sensor'). And the plurality of position sensors perform a detection operation at each installation position. That is, the plurality of position sensors may detect the position of the mover, the position of the lens unit, and the like. At this time, in the present invention, the positions of the mover or the optical member and the lens unit may be respectively detected by using the differential signals of the detection signals obtained through the plurality of position sensors.
- the first position sensor unit 160 includes a first position sensor that detects position information of the mover in the first direction (X-axis direction) and the mover in the second direction (Y-axis direction). It may include a second position sensor for detecting the position information of the.
- the first position sensor may correspond to the first and second Hall sensors described above, and the second position sensor may correspond to the third Hall sensor.
- the controller may calculate the rotation correction amount based on the optical axis direction (third direction or Z-axis direction) of the image information by using the position information in the first direction (X-axis direction) of the mover.
- control unit 190 may include a receiving unit 191 , an output unit 192 , and a calculation unit 193 .
- the receiver 191 may receive a control signal from an external, for example, an application processor (AP) of a mobile terminal for OIS, AF, or zooming.
- the mobile terminal may receive motion information from the gyro sensor and provide a control signal for moving the mover in the first direction or the second direction to the camera module in order to perform OIS using the motion information.
- AP application processor
- the receiver 191 receives from the first position sensor unit 160 and the second position sensor unit 170 the position information of the mover (mixed with 'first position information') and the position information of the lens unit ('second position information'). can be used interchangeably with).
- the receiving unit 191 includes a first position including position information in a first direction (X-axis direction) of the mover from the first position sensor and position information in a second direction (Y-axis direction) of the mover from the second position sensor. Information may be received from the first position sensor unit 160 .
- the receiving unit 191 may receive second position information including position information in the third direction (Z-axis direction) of the lens unit from the second position sensor unit 170 .
- the output unit 192 may output a driving signal for driving the first driving unit 140 and the second driving unit 150 in response to the control signal.
- the driving signal may have information on the magnitude or direction of the current supplied to the first coil to the third coil of the first driver 140 .
- the driving signal may have information on the magnitude or direction of the current supplied to the fourth to fifth coils of the second driver 150 .
- the moving direction or the moving amount of the mover and the lens unit may be determined by the driving signal.
- the calculator 193 may calculate a rotation correction amount based on a third direction or an optical axis direction with respect to the image information by using the first position information and the second position information received from the receiving unit 191 . A detailed description thereof will be given later.
- first location information and second location information detected by a plurality of location sensors are respectively input to the controller 190 , and a mover or an optical member or a second lens based on the first location information and the second location information The position of the assembly may be detected.
- FIG. 14 is a perspective view of a mover in a first camera actuator according to an embodiment
- FIG. 15 is a cross-sectional view of a first camera actuator according to an embodiment
- FIG. 16 is a second direction of the mover in the first camera actuator according to the embodiment It is a diagram illustrating image information according to movement
- FIG. 17 is a diagram for explaining the image information of FIG. 16 .
- the mover 1130 includes an optical member 1132 for changing the optical path as described above and a holder 1131 for holding the optical member 1132 .
- the light may be incident in a first direction (X-axis direction) from the mover, may be reflected by the optical member 1132 and output in a third direction (Z-axis direction) that is an optical axis direction.
- the optical member 1132 may have an inclination with respect to the optical axis direction (the Z-axis direction or the third direction) and one direction perpendicular to the optical axis direction.
- the optical member 1132 may be positioned to have an inclination with respect to the first direction (X-axis direction).
- the optical member 1132 may be positioned to have an inclination with respect to the optical axis direction, that is, the third direction (Z axis direction).
- the optical member 1132 may be positioned to have an inclination with respect to the second direction (Y-axis direction) and the optical axis direction. It will be described with reference to the drawings below.
- the optical member 1132 may be inclined with respect to a plane in any one of the optical axis direction, the first direction (X-axis direction), and the second direction (Y-axis direction).
- the optical member 1132 may be inclined with respect to a plane by planes XY and YZ.
- the optical member 1132 may be perpendicular to a plane in the first direction (X-axis direction) and the optical axis direction (Z-axis direction).
- the optical member 1132 may be perpendicular to the plane XZ.
- any one of the incident direction and the optical axis direction of the light incident to the optical member, the incident direction (eg, the first direction), and the other direction perpendicular to the optical axis direction (eg, the second direction (Y-axis direction)) can be inclined to the plane by
- the optical member according to the embodiment may be rotated (or tilted along the X-axis) based on the first direction (X-axis direction) by the controller.
- the optical member may move (or tilt the X-axis) in the second direction (Y-axis direction) by the controller.
- the image information (or image) generated by the image sensor corresponds to the movement of the optical member in the second direction (Y-axis direction). It can move in two directions (Y-axis direction).
- the image when the optical member moves in the second direction (Y-axis direction) (b, Y + movement), the image may move in the opposite direction to the second direction in response to the movement of the optical member (b, Y movement 1) ).
- the image when the optical member moves in the opposite direction to the second direction (Y-axis direction) (c, Y-movement), the image may move in the second direction in response to the movement of the optical member (c, Y-movement 2) .
- the image sensor will be described based on the first to third directions described in the above-described structure of the camera module. Accordingly, in the X-axis and Y-axis camera actuators for the image, the first direction (X-axis direction) and the second direction (Y-axis direction) correspond, respectively, and the Z-axis corresponds to the third direction (Z-axis direction) in the opposite direction.
- the image may move in the same direction as the moving direction of the optical member.
- the moving direction of the image may be changed according to the direction in which the optical member tilts with respect to the first direction (moving in the second direction or moving in the opposite direction to the second direction).
- the image information (or image) generated by the image sensor corresponds to the movement of the optical member in the second direction (Y-axis direction) in the third direction (Z-axis direction) can be rotated.
- the image when the optical member moves in the second direction (Y-axis direction), the image may move in the second direction in response to the movement of the optical member (C). Also, when the optical member moves in a direction opposite to the second direction (Y-axis direction), the image may move in a direction opposite to the second direction in response to the movement of the optical member.
- the controller may calculate a rotation correction amount in which the image rotates in a counterclockwise direction ( ⁇ rotation with respect to the Z-axis).
- the controller may calculate a rotational correction amount in which the image rotates in a clockwise direction (+rotation with respect to the Z-axis). That is, the controller may calculate a rotation correction amount having a different direction with respect to the Z-axis direction according to the position information of the optical member (whether the movement is in the second direction or the direction opposite to the second direction).
- the control unit when the control unit detects that the mover moves in the second direction (Y-axis direction) in the first position information, the image is rotated at a predetermined angle ( ⁇ a, ⁇ ) based on the third direction (Z-axis direction) It is possible to calculate a rotation correction amount that compensates by b ).
- the rotation correction amount may be a value corresponding to the above-described predetermined angles ⁇ a and ⁇ b .
- the rotation correction amount may be transmitted to the image processing unit or an external mobile device. Accordingly, since the image is rotated and output by the angle, correction for hand-shake and errors for correction of hand-shake can be minimized.
- FIG. 18 is a diagram illustrating image information according to movement of a mover in a first direction in a first camera actuator according to an embodiment
- FIG. 19 is a diagram explaining the image information of FIG. 18 .
- the optical member according to the embodiment may be rotated (Y-axis tilt) based on the second direction (Y-axis direction) by the controller.
- the optical member may be moved (Y-axis tilt) in the first direction (X-axis direction) by the control unit.
- the image information (or image) generated by the image sensor corresponds to the movement of the optical member in the first direction (X-axis direction) to the second It can move in one direction (X-axis direction).
- the image when the optical member moves in the first direction (X-axis direction) (e, X + movement), the image may move in the opposite direction to the second direction in response to the movement of the optical member (e, X movement 1) ).
- the image when the optical member moves in a direction opposite to the first direction (X-axis direction) (f, X-movement), the image may move in the second direction in response to the movement of the optical member (f, X-movement 2) .
- the image information (or image) generated by the image sensor corresponds to the movement in the first direction (X-axis direction) of the optical member in the third direction It may not rotate as a reference.
- the controller may not reflect the position information in the first direction (X-axis direction) of the mover to the rotation correction amount even if the position information is received from the second position sensor in the first direction (X-axis direction) of the mover.
- the image when the optical member moves in the first direction (X-axis direction), the image may not rotate based on the third direction (Z-axis direction).
- the controller determines that the image does not rotate based on the third direction (Z-axis direction) even if it detects that the mover moves in the first direction (X-axis direction) in the first location information. Accordingly, the controller may calculate the rotation correction amount without applying the rotation correction amount to the movement information in the first direction (X-axis direction).
- the controller may calculate the amount of rotation information only from position information in the second direction (Y-axis direction) of the mover.
- the rotation correction amount calculated therefrom may be transmitted to an image processing unit or an external mobile device. Accordingly, since the image is rotated and output by the angle, correction for hand-shake and errors for correction of hand-shake can be minimized.
- 20 and 21 are diagrams for explaining an operation in which the controller of the camera module adjusts the rotation correction amount according to the second position information according to the embodiment.
- the second camera actuator may include a lens unit that moves in the optical axis direction and includes at least one lens.
- the calculator according to the embodiment may adjust the change amount of the rotation correction amount for the position information of the mover according to the change in the focal length of the lens unit or at least one lens.
- FIGS. 20 and 21 show a wide-angle state and a telephoto state according to the movement of the lens unit of the second camera actuator.
- FIG. 20 is a wide angle state
- FIG. 21 is a telephoto state, which will be described as a reference.
- the focal length L by the lens units 1100 and 1200 and the image sensor IS is greater than the focal length L′ by the lens units 1100 and 1200 and the image sensor IS in the telephoto state.
- the lens units 1100 and 1200 are a lens unit of the second camera actuator or a single camera module, which simultaneously generates hand shake and corrects the hand shake as one configuration.
- the angle of view ⁇ by the lens units 1100 and 1200 and the image sensor IS in the wide-angle state is smaller than the angle of view ⁇ ' by the lens units 1100 and 1200 and the image sensor IS in the telephoto state.
- the image formed on the image sensor IS has a first shaking area SR with respect to the entire size or area of the image sensor IS.
- the image formed on the image sensor IS may have a second shaking region SR with respect to the entire size or area of the image sensor IS.
- the first shaking area SR1 may be smaller than the second shaking area SR. In other words, as the angle of view decreases, a shake area due to hand shake may increase.
- the controller according to the embodiment may increase the change amount of the rotation correction amount when the focal length of the at least one lens increases.
- the controller according to the embodiment may reduce the change amount of the rotation correction amount when the focal length of the at least one lens is reduced.
- the controller may increase the increase or decrease of the rotation correction amount in response to the increase or decrease of the focal length. Accordingly, as described above, when the focal length is increased, the angle of view may decrease and the shake area may increase due to hand shake.
- the control unit also increases the amount of rotation based on the third direction (Z-axis direction) of the image, and even if the shaking area further increases, Calibration can be performed accurately. Accordingly, the camera module according to the embodiment may more accurately correct for hand shake.
- the control unit when the focal length is decreased, the angle of view may increase and the shake area may decrease for hand shake. Accordingly, as described above, as the mover moves in the second direction (Y-axis direction), the control unit also reduces the amount of rotation based on the third direction (Z-axis direction) of the image and further reduces the shaking area. It is possible to accurately perform shake correction corresponding to a change in an area. Accordingly, the camera module according to the embodiment may provide an accurate image.
- 22 is a view for explaining driving of a control unit according to another embodiment.
- a camera module includes an image sensor, an image signal processing unit, a display unit, a first driving unit, a second driving unit, a first position sensor unit, a second position sensor unit, a storage unit, and a control unit. can do.
- the controller receives the first position information and the second position information detected by the plurality of position sensors, respectively, and the position of the mover or the optical member or the second lens assembly based on the first position information and the second position information can be detected.
- the controller may calculate the rotation correction amount based on the optical axis direction (third direction or Z-axis direction) of the image information by using the position information in the first direction (X-axis direction) of the mover.
- the controller may calculate a rotation correction amount of the image sensor based on a third direction or an optical axis direction with respect to the image information by using the first position information and the second position information.
- the controller may calculate the rotation correction amount RT for rotating the image sensor itself based on the Z-axis direction or the optical axis OX direction.
- the image sensor may rotate in the third direction (z-axis direction), and a third driving unit (not shown) for rotation may be located in an area adjacent to the image sensor.
- 23 is a flowchart of a method of driving a control unit according to an embodiment.
- the method of driving the control unit includes the steps of detecting a motion with a gyro sensor (S310), outputting a control signal for tilting the mover (S320), and detecting the position of the mover (S310). S330), calculating the rotation correction amount (S340), and rotating the image sensor or performing image processing (S350) may include.
- the gyro sensor may detect a movement (inclination, etc.) of the camera module (S310).
- the controller may receive tilt information of the camera module from the gyro sensor.
- the above step may be performed when the gyro sensor is located in the camera module, but this step may be omitted when the gyro sensor is located outside.
- the controller may output a control signal for tilting the mover (S320).
- the mover may be moved in the first direction or the second direction in response to the motion information of the camera module. That is, the OIS function may be performed.
- control unit may detect the position of the mover (S330).
- the control unit may detect the positions of the mover and the lens unit from the first position sensor unit and the second position sensor unit.
- the controller may detect movement of the mover in the first direction or the second direction through the first position sensor and the second position sensor.
- the controller may calculate a rotation correction amount by using the position information in the second direction of the mover (S340).
- the above contents may be applied in the same way.
- controller may rotate the image sensor or perform image processing (S350).
- the controller may rotate the image generated by the image sensor based on the orphan axis direction by the calculated rotation correction amount. Accordingly, an error in rotation based on the third direction (Z-axis direction) generated while the mover moves in the second direction (Y-axis direction) may be compensated. Accordingly, a more accurate anti-shake (OIS) function may be implemented.
- OIS anti-shake
- FIG. 24 is a perspective view of a mobile terminal 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 auto-focusing device 1510 provided on the rear side.
- the camera module 1000 may include an image capturing function and an auto focus function.
- the camera module 1000 may include an auto-focus function using an image.
- the camera module 1000 processes an image frame of a still image or a moving image obtained by an image sensor in a shooting mode or a video call mode.
- the processed image frame may be displayed on a predetermined display unit and stored in a memory.
- a camera (not shown) may also be disposed on the front of the mobile terminal body.
- the camera module 1000 may include a first camera module 1000 and a second camera module 1000, and OIS may be implemented together with an AF or zoom function by the first camera module 1000A.
- 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 the packages of the surface light emitting laser device as a light emitting part.
- the auto-focusing device 1510 may include an auto-focusing function using a laser.
- the auto focus device 1510 may be mainly used in a condition in which the auto focus function using the image of the camera module 1000 is deteriorated, for example, close to 10 m or less or in a dark environment.
- 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.
- 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
- 25 is a perspective view of a vehicle to which a camera module according to an embodiment is applied.
- FIG. 25 is an external view of a vehicle including a vehicle driving assistance device to which the camera module 1000 according to an embodiment is applied.
- the vehicle 700 may include wheels 13FL and 13FR that rotate by a power source and a predetermined sensor.
- the sensor may be the camera sensor 2000, but is not limited thereto.
- the camera 2000 may be a camera sensor to which the camera module 1000 according to the embodiment is applied.
- the vehicle 700 of the embodiment may acquire image information through a camera sensor 2000 that captures a front image or a surrounding image, and determines a lane unidentified situation using the image information and generates a virtual lane when unidentified can do.
- the camera sensor 2000 may acquire a front image by photographing the front of the vehicle 700 , and a processor (not shown) may obtain image information by analyzing an object included in the front image.
- the processor detects the object to be included in the video information.
- the processor may further supplement the image information by acquiring distance information from the object detected through the camera sensor 2000 .
- the image information may be information about an object photographed in an image.
- the camera sensor 2000 may include an image sensor and an image processing module.
- the camera sensor 2000 may process a still image or a moving image obtained by an image sensor (eg, CMOS or CCD).
- an image sensor eg, CMOS or CCD
- the image processing module may process a still image or a moving image obtained through the image sensor, extract necessary information, and transmit the extracted information to the processor.
- the camera sensor 2000 may include a stereo camera to improve the measurement accuracy of the object and further secure information such as the distance between the vehicle 700 and the object, but is not limited thereto.
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- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Studio Devices (AREA)
- Lens Barrels (AREA)
- Cameras In General (AREA)
- Camera Bodies And Camera Details Or Accessories (AREA)
- Adjustment Of Camera Lenses (AREA)
Abstract
Description
Claims (10)
- 입사된 광의 경로를 변경하는 광학부재를 포함하는 무버;상기 무버를 광축 방향에 수직한 제1 방향 또는 제2 방향으로 이동시키는 구동부;상기 무버를 이동시키는 제어신호를 출력하는 출력부;상기 무버의 상기 제2 방향으로 위치 정보를 감지하는 제1 위치 센서;상기 광학부재를 통과한 광을 수광하여 이미지 정보를 생성하는 이미지 센서; 및상기 무버의 상기 제2 방향으로 위치 정보를 이용하여 상기 이미지 정보에 대한 상기 광축 방향을 기준으로 이미지 정보의 회전 보정량을 산출하는 산출부;를 포함하는 카메라 엑추에이터.
- 제1항에 있어서,상기 입사된 광은 상기 무버에서 상기 제1 방향으로 입사하고 상기 광축 방향으로 출력되는 카메라 엑추에이터.
- 제2항에 있어서,상기 광학부재는 상기 제1 방향 및 상기 광축 방향에 대해 수직이 아닌 기울기를 갖도록 배치되는 카메라 엑추에이터.
- 제1항에 있어서,상기 광학부재는 상기 제1 방향 및 상기 광축 방향 중 어느 하나와 상기 제2 방향에 의한 평면에 대해 경사지게 배치되는 카메라 엑추에이터.
- 제1항에 있어서,상기 광학부재는 상기 제1 방향 및 상기 광축 방향에 의한 평면에 대해 수직인 카메라 엑추에이터.
- 제1항에 있어서,상기 광축 방향으로 이동하는 적어도 하나의 렌즈;를 더 포함하고,상기 산출부는 상기 적어도 하나의 렌즈의 초점 거리의 변화에 따라 상기 위치 정보에 대한 상기 회전 보정량의 변화량을 조절하는 카메라 엑추에이터.
- 제6항에 있어서,상기 회전 보정량의 변화량은 상기 적어도 하나의 렌즈의 초점 거리가 증가하면 증가하고, 상기 적어도 하나의 렌즈의 초점 거리가 감소하면 감소하는 카메라 엑추에이터.
- 제1항에 있어서,상기 무버의 상기 제1 방향으로 위치 정보를 감지하는 제2 위치 센서;를 더 포함하는 카메라 엑추에이터.
- 제8항에 있어서,상기 산출부는 상기 무버의 상기 제1 방향으로 위치 정보를 상기 회전 보정량에 반영하지 않는 카메라 엑추에이터.
- 입사된 광의 경로를 변경하는 광학부재를 포함하는 무버;상기 무버를 광축 방향에 수직한 제1 방향 또는 제2 방향으로 이동시키는 구동부;상기 무버를 이동시키는 제어신호를 출력하는 출력부;상기 무버의 상기 제2 방향으로 위치 정보를 감지하는 제2 위치 센서;상기 광학부재를 통과한 광을 수광하여 이미지 정보를 생성하는 이미지 센서; 및상기 무버의 상기 제2 방향으로 위치 정보를 이용하여 상기 이미지 센서를 상기 광축 방향을 기준으로 회전시키는 회전 보정량을 산출하는 산출부;를 포함하는 카메라 엑추에이터.
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| EP21800688.0A EP4149107A4 (en) | 2020-05-06 | 2021-05-04 | CAMERA ACTUATOR AND CAMERA DEVICE INCLUDING SAME |
| CN202180040905.XA CN115702573B (zh) | 2020-05-06 | 2021-05-04 | 相机致动器和包括该相机致动器的相机装置 |
| US17/923,870 US20230168565A1 (en) | 2020-05-06 | 2021-05-04 | Camera actuator and camera device including same |
| JP2022567620A JP7849305B2 (ja) | 2020-05-06 | 2021-05-04 | カメラアクチュエータおよびこれを含むカメラ装置 |
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2020
- 2020-05-06 KR KR1020200053857A patent/KR102855572B1/ko active Active
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2021
- 2021-05-04 EP EP21800688.0A patent/EP4149107A4/en active Pending
- 2021-05-04 CN CN202180040905.XA patent/CN115702573B/zh active Active
- 2021-05-04 CN CN202511143579.1A patent/CN120812402A/zh active Pending
- 2021-05-04 WO PCT/KR2021/005613 patent/WO2021225358A1/ko not_active Ceased
- 2021-05-04 JP JP2022567620A patent/JP7849305B2/ja active Active
- 2021-05-04 US US17/923,870 patent/US20230168565A1/en active Pending
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2025
- 2025-09-01 KR KR1020250123335A patent/KR20250136283A/ko active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011147178A (ja) * | 2011-03-30 | 2011-07-28 | Casio Computer Co Ltd | 撮像装置 |
| KR20140106457A (ko) * | 2014-06-20 | 2014-09-03 | 삼성전자주식회사 | 굴절면으로 구성된 굴곡 프리즘의 구동을 통한 광경로 보정 시스템 및 방법 |
| KR20180095420A (ko) * | 2017-02-17 | 2018-08-27 | 삼성전기주식회사 | 손떨림 보정 반사모듈 및 이를 포함하는 카메라 모듈 |
| KR20190108375A (ko) * | 2018-03-14 | 2019-09-24 | 엘지전자 주식회사 | 이미지 획득 장치 |
| KR20200053857A (ko) | 2018-11-09 | 2020-05-19 | (주) 에어로매스터 | 항공기의 통합 대기 자료 시스템 |
| KR20190137036A (ko) * | 2019-11-27 | 2019-12-10 | 엘지이노텍 주식회사 | 카메라 모듈 |
Non-Patent Citations (1)
| Title |
|---|
| See also references of EP4149107A4 |
Also Published As
| Publication number | Publication date |
|---|---|
| JP7849305B2 (ja) | 2026-04-21 |
| KR102855572B1 (ko) | 2025-09-04 |
| KR20250136283A (ko) | 2025-09-16 |
| EP4149107A1 (en) | 2023-03-15 |
| JP2023525073A (ja) | 2023-06-14 |
| CN115702573B (zh) | 2025-09-02 |
| US20230168565A1 (en) | 2023-06-01 |
| CN120812402A (zh) | 2025-10-17 |
| KR20210135780A (ko) | 2021-11-16 |
| CN115702573A (zh) | 2023-02-14 |
| EP4149107A4 (en) | 2023-10-25 |
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