WO2022139476A1 - 카메라 액추에이터 및 이를 포함하는 카메라 모듈 - Google Patents
카메라 액추에이터 및 이를 포함하는 카메라 모듈 Download PDFInfo
- Publication number
- WO2022139476A1 WO2022139476A1 PCT/KR2021/019641 KR2021019641W WO2022139476A1 WO 2022139476 A1 WO2022139476 A1 WO 2022139476A1 KR 2021019641 W KR2021019641 W KR 2021019641W WO 2022139476 A1 WO2022139476 A1 WO 2022139476A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- magnet
- disposed
- camera actuator
- camera
- unit
- Prior art date
Links
- 230000003287 optical effect Effects 0.000 claims description 18
- 238000000034 method Methods 0.000 claims description 11
- 239000003381 stabilizer Substances 0.000 claims description 6
- 230000006870 function Effects 0.000 description 32
- 238000001514 detection method Methods 0.000 description 30
- 230000004907 flux Effects 0.000 description 29
- 230000000052 comparative effect Effects 0.000 description 20
- 230000008859 change Effects 0.000 description 19
- 239000000758 substrate Substances 0.000 description 17
- 125000006850 spacer group Chemical group 0.000 description 15
- 230000000694 effects Effects 0.000 description 9
- -1 polyethylene terephthalate Polymers 0.000 description 6
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 4
- 239000004698 Polyethylene Substances 0.000 description 4
- 239000004743 Polypropylene Substances 0.000 description 4
- 230000004308 accommodation Effects 0.000 description 4
- 210000000746 body region Anatomy 0.000 description 4
- 230000004048 modification Effects 0.000 description 4
- 238000012986 modification Methods 0.000 description 4
- 229920000573 polyethylene Polymers 0.000 description 4
- 229920001155 polypropylene Polymers 0.000 description 4
- 238000000926 separation method Methods 0.000 description 4
- 230000006641 stabilisation Effects 0.000 description 4
- 238000011105 stabilization Methods 0.000 description 4
- 230000000712 assembly Effects 0.000 description 3
- 238000000429 assembly Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 230000005415 magnetization Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229920000515 polycarbonate Polymers 0.000 description 2
- 239000004417 polycarbonate Substances 0.000 description 2
- 239000005020 polyethylene terephthalate Substances 0.000 description 2
- 229920000139 polyethylene terephthalate Polymers 0.000 description 2
- 229920005644 polyethylene terephthalate glycol copolymer Polymers 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000004088 simulation Methods 0.000 description 2
- 239000000919 ceramic Substances 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
Images
Classifications
-
- 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
-
- 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
-
- 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
- H04N23/57—Mechanical or electrical details of cameras or camera modules specially adapted for being embedded in other devices
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/58—Means for changing the camera field of view without moving the camera body, e.g. nutating or panning of optics or image sensors
-
- 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
- G03B2205/0053—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 and a camera module including the same.
- the camera module captures a subject and stores it as an image or video, and is installed in various devices such as mobile terminals such as cell phones, laptops, drones, and vehicles.
- the device described above is equipped with a miniature camera module, and the camera module can perform an autofocus (AF) function of automatically adjusting the distance between the image sensor and the lens to align the focal lengths of the lenses.
- the camera module may perform a zooming function of zooming up or zooming out by increasing or decreasing the magnification of a distant subject through a zoom lens. .
- a zoom actuator is used for a zooming function in the camera module.
- friction torque is generated when the lens is moved due to the mechanical movement of the actuator, and problems such as a decrease in driving force, an increase in power consumption, and a decrease in control characteristics occur due to the friction torque.
- alignment between the plurality of lens groups and the image sensor as well as alignment between the plurality of lens groups is performed.
- a camera module employs an image stabilization (IS) technology to correct or prevent image stabilization due to an unstable fixing device or a camera movement caused by a user's movement.
- image stabilization (IS) technology includes an optical image stabilizer (OIS) technology and an image stabilization prevention technology using an image sensor.
- OIS technology is a technology that corrects motion by changing the path of light
- image shake prevention technology using an image sensor is a technology that compensates movement in a mechanical and electronic way, and OIS technology is being adopted more recently.
- the camera module may include a reflective member, a driving unit, etc. that can change the path of light to implement the OIS function.
- the camera module may change the path of light by controlling the position of the reflective member with the driving force applied from the driving unit.
- the position of the reflective member may be controlled by using a VCM (Voice Coil Motor) type driving unit including a coil and a magnet as the driving unit.
- VCM Vehicle Coil Motor
- the magnets cause mutual interference.
- the positional accuracy of the reflective member is reduced by causing interference between the magnets of the camera modules disposed adjacent to each other.
- An embodiment is to provide a camera actuator and a camera module capable of having improved optical properties.
- An embodiment is to provide a camera actuator and a camera module capable of minimizing leakage magnetic flux.
- An embodiment is to provide a camera actuator and a camera module that can effectively control vibrations caused by hand shake.
- the embodiment is intended to provide a camera actuator and a camera module that can be implemented in a compact size having a small volume.
- An embodiment is to provide a camera actuator and a camera module having improved autofocus and high magnification zoom functions.
- An embodiment is to provide a camera actuator and a camera module capable of preventing problems such as de-centering, tilting, and friction occurring when a lens group is moved.
- a camera actuator includes a first housing, a prism unit disposed in the first housing, and a first driving unit for tilting the prism unit to a first axis or a second axis, wherein the first driving unit is the prism unit a first magnet disposed in an area corresponding to the first outer surface of a third magnet disposed in a region corresponding to a third outer surface disposed between two outer surfaces, the first and second magnets being spaced apart in a first direction, and a length of the third magnet in the first direction may be 50% to 98% of the distance between the first and second magnets in the first direction.
- the first to third magnets may extend in a second direction perpendicular to the first direction, and lengths of the first and second magnets in the second direction may be the same.
- the third magnet overlaps the first and second magnets in the first direction
- the length of the third magnet overlaps the first and second magnets in the second direction in the second direction
- the length of the third magnet in the second direction may be 50% to 98% of the total length of the third magnet in the second direction.
- the length of the third magnet in the second direction may be the same as lengths of the first and second magnets in the second direction.
- a length of the third magnet in the first direction may be longer than a length of the third magnet in the second direction.
- a first housing holder disposed on one side of the first housing and a moving plate disposed between the prism unit and the first housing holder, wherein the moving plate comprises the prism unit and the It may include a plurality of first moving parts disposed on one surface facing each other and a plurality of second moving parts opposite to the one surface and disposed on the other surface facing the first housing holder.
- the first and second moving parts may have a shape protruding from one surface and the other surface, respectively.
- the plurality of first moving parts may be spaced apart from each other in the first direction, and the plurality of second moving parts may be spaced apart from each other in a third direction perpendicular to the first direction.
- the prism unit is disposed between the first and second outer surfaces and includes a fifth outer surface facing the moving plate, and the fifth outer surface is the plurality of first moving parts. and a plurality of recesses disposed in an area corresponding to .
- the plurality of first moving parts may have the same shape as each other, and the plurality of recesses may have different cross-sectional shapes.
- the prism unit is provided to be tiltable in the third direction with an imaginary straight line extending in the first direction as a rotation axis, and the first moving unit guides the prism unit when the prism unit is tilted in the third direction. can do.
- the prism unit is provided to be tiltable in the first direction with a rotation axis of an imaginary straight line extending in the third direction, and the second moving unit tilts the prism unit in the first direction. In this case, it is possible to guide the prism unit.
- a camera actuator includes a first housing, a prism unit disposed in the first housing, and a first driving unit for tilting the prism unit to a first axis or a second axis
- the first driving unit is the prism unit a first magnet disposed in an area corresponding to the first outer surface of and a third magnet disposed in a region corresponding to a third outer surface disposed between two outer surfaces
- the prism unit is disposed between the first and second outer surfaces and connected to the third outer surface 5 outer surfaces
- the first and second magnets are spaced apart in a first direction, and centers of the first and second magnets are disposed on the same line with respect to the first direction, and the first direction and A center of the third magnet may be disposed closer to the fifth outer surface than an imaginary straight line connecting the centers of the first and second magnets based on a second vertical direction.
- one end of the third magnet may be disposed closer to the fifth outer surface than one end of the first and second magnets based on the second direction.
- a length of the third magnet in the first direction may be 50% to 98% of a distance between the first and second magnets in the first direction.
- a camera module includes a first camera actuator and a second camera actuator, wherein the first camera actuator provides an Optical Image Stabilizer (OIS) function, and the second camera actuator provides a zoom or autofocus function. (Auto focusing) or a function, the first camera actuator may include the above-described camera actuator.
- OIS Optical Image Stabilizer
- the light incident on the camera module from the outside may be incident on the second camera actuator through the first camera actuator.
- the camera actuator and the camera module according to the embodiment may have improved optical properties.
- the camera actuator and the camera module according to the embodiment may include a driving unit for controlling the position of the prism, and the position of the prism may be precisely controlled by the driving unit. Accordingly, the embodiment can effectively control vibration generated by hand shake, thereby providing an improved OIS function.
- the camera actuator and the camera module according to the embodiment may minimize or prevent leakage magnetic flux.
- the driving unit for controlling the prism unit may include a plurality of magnets, and the plurality of magnets may have a set size and may be disposed at a set position. Accordingly, even if other actuators or other camera modules are arranged side by side in a position adjacent to the camera actuator and a camera module including the same, magnetic interference by the other actuators or the other camera module can be minimized. Accordingly, in the embodiment, the prism unit can be precisely controlled by using the driving unit and vibration generated by hand shake can be effectively controlled.
- the camera actuator and the camera module according to the embodiment may prevent or minimize the occurrence of a lens decenter or tilt during zooming. Accordingly, the embodiment may improve the align characteristic between the plurality of lens groups, thereby preventing a change in the angle of view or defocusing, and thereby may have improved image quality and resolution.
- FIG. 1 is a perspective view of a camera module according to an embodiment.
- FIG. 2 is a perspective view in which some components are omitted from the camera module of FIG. 1 .
- FIG 3 is a perspective view of a first camera actuator included in a camera module according to an embodiment.
- FIG. 4 is an exploded perspective view of a first camera actuator according to an embodiment.
- FIG 5 is a perspective view of a driving unit of a first camera actuator according to an embodiment.
- FIG. 6 is a perspective view of a first housing of a first camera actuator according to an embodiment.
- FIG. 7 and 8 are diagrams illustrating an arrangement relationship of a prism unit, a moving plate, and a housing holder of a first camera actuator according to an embodiment.
- FIG 9 and 10 are perspective views of the prism mover of the first camera actuator according to the embodiment.
- 11 and 12 are diagrams illustrating an arrangement relationship of magnets of a first camera actuator according to an embodiment.
- FIG. 13 is a cross-sectional view illustrating a cross section A-A' of FIG. 3 .
- FIG. 14 is a cross-sectional view illustrating a cross section B-B' of FIG. 3 .
- 15 and 16 are simulation data for a magnetic force distribution of a magnet in the first camera actuator according to Examples and Comparative Examples.
- 17 is a perspective view of a second camera actuator included in the camera module according to the embodiment.
- FIG. 18 is a perspective view in which some components are omitted in the second camera actuator according to the embodiment.
- 19 is an exploded perspective view in which some components are omitted in the second camera actuator according to the embodiment.
- 20 is a perspective view of a first guide part and a second guide part in the second camera actuator according to the embodiment.
- 21 and 22 are additional perspective views of the first guide unit shown in FIG. 20 .
- FIG. 23 is a perspective view of a first driving unit in a second camera actuator according to an embodiment.
- 24 is an exemplary driving view of the second camera actuator according to the embodiment.
- 25 is a cross-sectional view illustrating a cross-section taken along line C-C' in FIG. 17 .
- 26 and 27 are enlarged views showing an enlarged area S of FIG. 25 .
- 29 and 30 are magnetic flux density distribution data of a second camera actuator according to Comparative Examples and Examples.
- 31 is an exemplary view of an integrated body in a camera module according to another embodiment.
- FIG. 32 is a perspective view of a mobile terminal to which a camera module according to an embodiment is applied.
- FIG 33 is a perspective view of a vehicle to which a camera module according to an embodiment is applied.
- first, second, A, B, (a), (b), etc. may be used. These terms are only for distinguishing the component from other components, and are not limited to the essence, order, or order of the component by the term. And, when it is described that a component is 'connected', 'coupled' or 'connected' to another component, the component is not only directly connected, coupled or connected to the other component, but also with the component It may also include a case of 'connected', 'coupled' or 'connected' due to another element between the other elements.
- top (above) or under (below) When it is described as being formed or disposed on “above (above) or under (below)” of each component, top (above) or under (below) is not only when two components are in direct contact with each other, but also when one or more or Also includes cases where another component is formed or disposed between two components.
- upper (upper) or lower (lower) when expressed as "upper (upper) or lower (lower)", a meaning of not only an upper direction but also a lower 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 z-axis direction of the drawing and a direction perpendicular to the x-axis and y-axis directions.
- the y-axis direction may mean an optical axis direction or a direction parallel thereto
- the xy plane represents the ground
- the x-axis is the y-axis in the paper. and may mean a direction perpendicular to
- the z-axis may mean a direction perpendicular to the ground.
- FIG. 1 is a perspective view of a camera module according to an embodiment
- FIG. 2 is a perspective view in which some components are omitted from the camera module of FIG. 1 .
- the camera module 10 may include one or a plurality of camera actuators.
- the camera module 10 may include a first camera actuator 1000 and a second camera actuator 2000 .
- the camera module 10 may include a protective case 15 accommodating the first camera actuator 1000 and the second camera actuator 2000 .
- the first camera actuator 1000 may be an optical image stabilizer (OIS) actuator.
- OIS optical image stabilizer
- the light incident on the camera module 10 from the outside may be incident on the first camera actuator 1000 first.
- a path of the light incident on the first camera actuator 1000 may be changed to be incident on the second camera actuator 2000 .
- the light passing through the second camera actuator 2000 may be incident on the image sensor 2180 .
- the second camera actuator 2000 may be a zoom and/or auto focus actuator.
- the second camera actuator 2000 may include a plurality of lenses.
- the second camera actuator 2000 may perform a zoom or autofocus function by moving at least one lens in the optical axis direction according to a control signal from the controller.
- FIG. 4 is an exploded perspective view of a first camera actuator according to an embodiment
- FIG. 5 is a perspective view of a driving unit of the first camera actuator according to the embodiment
- FIG. 6 is a perspective view of a first housing of a first camera actuator according to an embodiment
- FIGS. 7 and 8 are a prism unit, a moving plate, and a housing holder of the first camera actuator according to the embodiment. It is a drawing. 9 and 10 are perspective views of the prism mover of the first camera actuator according to the embodiment.
- the first camera actuator 1000 according to the embodiment will be described in more detail with reference to FIGS. 4 to 10 .
- the first camera actuator 1000 may be an optical image stabilizer (OIS) actuator.
- the first camera actuator 1000 may change the path of the light incident on the camera module 10 .
- the first camera actuator 1000 includes a cover member 100 , a first housing 200 , a first driving unit 300 , a prism unit 400 , a first housing holder 230 , and moving.
- a plate 450 may be included.
- the cover member 100 may include an accommodating space therein, and at least one side surface may be open.
- the cover member 100 may have a structure in which an upper surface and one side are open.
- the cover member 100 may have a structure in which an upper surface on which light is incident from the outside and one side corresponding to the first camera actuator 1000 are opened, and a light movement path is provided to the prism unit 400 . can provide
- the cover member 100 may have a shape in which a lower surface opposite to the upper surface is further opened.
- the cover member 100 may include a rigid material.
- the cover member 100 may include a material having a predetermined reliability, such as resin, metal, ceramic, and the like, and may support the first housing 200 disposed in the accommodation space.
- the cover member 100 may support components such as the first housing 200 , the prism unit 400 , and the first driving unit 300 .
- the first driving unit 300 may include a first circuit board 310 , a coil unit 330 , and a magnet 350 .
- the first circuit board 310 may be connected to a power supply unit (not shown) to apply power to the coil unit 330 .
- the first circuit board 310 is 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).
- the coil unit 330 may be electrically connected to the first circuit board 310 .
- the coil unit 330 may include one or a plurality of coil units.
- the coil unit 330 may include a first coil unit 331 , a second coil unit 332 , and a third coil unit 333 .
- the first coil unit 331 , the second coil unit 332 , and the third coil unit 333 may be spaced apart from each other.
- the first circuit board 310 may have a 'C' shape, and the first coil unit 331 and the second coil unit 332 may be configured to face each other in a first direction.
- the first circuit board 310 may be disposed on the first and second surfaces, respectively.
- the third coil unit 333 may be disposed on a third surface connecting between the first and second surfaces of the first circuit board 310 .
- the magnet 350 may include one or a plurality of magnets.
- the magnet 350 may include a first magnet 351 , a second magnet 352 , and a third magnet 353 disposed in a region corresponding to the coil unit 330 .
- the first magnet 351 may be disposed on the first surface of the first circuit board 310 .
- the first magnet 351 may be disposed on a region corresponding to the first coil unit 331 .
- the first magnet 351 may be disposed on an area corresponding to the first outer surface of the prism unit 400 to be described later.
- the second magnet 352 may be disposed on the second surface of the first circuit board 310 .
- the second magnet 352 may be disposed on a region corresponding to the second coil unit 332 .
- the second magnet 352 may be disposed on a region corresponding to the second outer surface of the prism unit 400 .
- the third magnet 353 may be disposed on a third surface of the first circuit board 310 .
- the third magnet 353 may be disposed on a region corresponding to the third coil unit 333 .
- the third magnet 353 may be disposed on a region corresponding to the third outer surface of the prism unit 400 .
- the first to third magnets 351 , 352 , and 353 will be described in more detail with reference to FIGS. 11 and 12 to be described later.
- the first driving unit 300 may further include a yoke unit 370 .
- the yoke unit 370 may include one or a plurality of yokes.
- the yoke unit 370 includes a first yoke 371 , a second yoke 372 , and a third yoke 373 disposed in regions corresponding to the coil unit 330 and the magnet 350 .
- the first to third yokes 371 , 372 , and 373 may provide a magnetic flux shielding function for the magnet 350 disposed in the corresponding area, respectively.
- the first yoke 371 may be disposed in an area corresponding to the first coil part 331 and the first magnet 351 .
- the first magnet 351 may be disposed between the first yoke 371 and the first coil unit 331 .
- the second yoke 372 may be disposed in a region corresponding to the second coil unit 332 and the second magnet 352 .
- the second magnet 352 may be disposed between the second yoke 372 and the second coil unit 332 .
- the third yoke 373 may be disposed in a region corresponding to the third coil unit 333 and the third magnet 353 .
- the third magnet 353 may be disposed between the third yoke 373 and the third coil unit 333 .
- the first driving unit 300 may further include a sensing unit.
- the sensing unit may include a position detection sensor capable of detecting a position.
- the sensing unit may include at least one Hall sensor, a gyro sensor, and the like.
- the sensing unit includes a first Hall sensor HS1 disposed adjacent to the first coil unit 331 and a second Hall sensor HS2 disposed adjacent to the second coil unit 332 . can do.
- Each of the first Hall sensor HS1 and the second Hall sensor HS2 may detect positions of the first magnet 351 and the second magnet 352 .
- the sensing unit may include a third Hall sensor HS3 and a fourth Hall sensor HS4 disposed adjacent to the third coil unit 333 .
- the third Hall sensor HS3 and the fourth Hall sensor HS4 may detect the position of the third magnet 353 .
- the first driving unit 300 may tilt the prism unit 400 .
- the first driving unit 300 may control the tilting of the prism unit 400 along a first axis or a second axis by applied power.
- the first housing 200 may include an accommodation space for accommodating the prism unit 400 .
- the first housing 200 may include a plurality of inner surfaces.
- the first housing 200 may have a first inner surface corresponding to the first surface of the first circuit board 310 and a second inner surface corresponding to the second surface of the first circuit board 310 . It may include a side surface and a third inner surface corresponding to the third surface of the first circuit board 310 .
- the first housing 200 may include a first inner surface corresponding to the first coil unit 331 and a second inner surface corresponding to the second coil unit 332 .
- the first inner surface and the second inner surface may be disposed to face each other in a first direction (x-axis direction).
- the first housing 200 may further include a third inner surface, a fourth inner surface, and a fifth inner surface.
- the third inner surface may be disposed in a region corresponding to the third coil unit 333 .
- the third inner surface may be disposed between the first and second inner surfaces to connect the two inner surfaces.
- the third inner surface may have a shape extending in the first direction (x-axis direction).
- the fourth inner surface may be disposed between the first and second inner surfaces.
- the fourth inner surface may face the second camera actuator 2000 .
- the fourth inner surface may include an opening formed in a region corresponding to the prism 410 .
- the fifth inner surface may be disposed between the first and second inner surfaces.
- the fifth inner surface may be a surface facing the fourth inner surface in the second direction (y-axis direction).
- the fifth inner surface may be opened, and a first housing holder 230 to be described later may be disposed on the open area.
- the first housing 200 may include a plurality of housing holes.
- the housing hole may be a hole penetrating the outer and inner surfaces of the first housing 200 .
- the plurality of housing holes may include a first housing hole H1 , a second housing hole H2 , and a third housing hole H3 .
- the first housing hole H1 may be a through hole passing through an outer surface corresponding to the first inner surface.
- the first housing hole H1 may be disposed in a region corresponding to the first coil unit 331 .
- the first housing hole H1 may have a size and shape corresponding to that of the first coil unit 331 . Accordingly, the first coil part 331 may be disposed to be partially or entirely inserted into the first housing hole H1.
- the second housing hole H2 may be a through hole passing through an outer surface corresponding to the second inner surface.
- the first housing hole H1 may be disposed in a region corresponding to the first housing hole H1 in the first direction.
- the second housing hole H2 may be disposed in a region corresponding to the second coil unit 332 .
- the second housing hole H2 may have a size and shape corresponding to that of the second coil unit 332 . Accordingly, the second coil part 332 may be disposed to be partially or entirely inserted into the second housing hole H2.
- the first housing hole H1 may have the same size and shape as the second housing hole H2 .
- the third housing hole H3 may be a through hole passing through an outer surface corresponding to the third inner surface.
- the third housing hole H3 may be disposed in a region corresponding to the third coil unit 333 .
- the third housing hole H3 may have a size and shape corresponding to that of the third coil unit 333 . Accordingly, the third coil unit 333 may be disposed to be partially or entirely inserted into the third housing hole H3.
- the third housing hole H3 may have a size and shape different from that of the first housing hole H1 and the second housing hole H2 .
- the size of the third housing hole H3 may be larger than the size of the first housing hole H1 and the second housing hole H2 .
- the prism unit 400 may be disposed in the first housing 200 .
- the prism unit 400 may be disposed in the accommodation space of the first housing 200 .
- the prism unit 400 may include a prism 410 and a prism mover 430 supporting the prism 410 .
- the prism 410 may be a right-angle prism.
- the prism 410 may reflect the direction of light incident from the outside. That is, the prism 410 may change the path of the light incident on the first camera actuator 1000 from the outside toward the first camera actuator 1000 .
- the prism mover 430 may support the prism 410 .
- the prism 410 may be disposed on the prism mover 430 .
- the prism mover 430 may be disposed to surround the prism 410 .
- At least one side of the prism mover 430 may be open and may include an accommodating space therein.
- the prism mover 430 may have a structure in which a plurality of outer surfaces connected to each other are open.
- the prism mover 430 has a structure in which an outer surface corresponding to the prism 410 is open, and may include an accommodation space defined as a first space 435 therein.
- the first space 435 may have a shape corresponding to the prism 410 .
- the prism 410 may be disposed and fixed in the first space 435 of the prism mover 430 .
- the prism unit 400 may include a plurality of outer surfaces.
- the prism mover 430 may include a plurality of outer surfaces.
- the prism mover 430 may include a first outer surface corresponding to the first inner surface of the first housing 200 and a second outer surface corresponding to the second inner surface of the first housing 200 .
- the prism mover 430 may include a third outer surface corresponding to the third inner surface of the first housing 200 .
- the third outer surface may be a surface connecting the two outer surfaces between the first and second outer surfaces.
- the third outer surface may be a bottom surface of the prism mover 430 .
- the prism mover 430 may include a fifth outer surface corresponding to the fifth inner surface.
- the fifth outer surface may be a surface connecting the two outer surfaces between the first and second outer surfaces, and may be a surface connected to the third outer surface.
- the prism mover 430 may include a plurality of recesses. Each of the plurality of recesses may have a concave shape on the outer surface of the prism mover 430 in a central direction of the prism mover 430 .
- the plurality of recesses may include a first recess 430R1 , a second recess 430R2 , and a third recess 430R3 .
- the first recess 430R1 may be disposed on the first outer surface.
- the first recess 430R1 may be disposed in a region corresponding to the first housing hole H1 .
- the second recess 430R2 may be disposed on the second outer surface.
- the second recess 430R2 may be disposed in a region corresponding to the second housing hole H2 .
- the second recess 430R2 may be disposed to face the first recess 430R1 in a first direction (x-axis direction).
- the third recess 430R3 may be disposed on the third outer surface.
- the third recess 430R3 may be disposed in a region corresponding to the third housing hole H3 .
- the magnet 350 and the yoke part 370 may be disposed in the first to third recesses 430R1 , 430R2 , and 430R3 .
- the first magnet 351 and the first yoke 371 are disposed in the first recess 430R1
- the second magnet 352 and the second yoke 372 are disposed in the second recess.
- the third magnet 353 and the third yoke 373 may be respectively disposed in the third recess 430R3 so that the magnet 350 may be spaced apart from each other.
- the plurality of recesses may further include a fourth recess 430R4 , a fifth recess 430R5 , and a sixth recess 430R6 .
- the fourth recess 430R4 , the fifth recess 430R5 , and the sixth recess 430R6 may be disposed on a fifth outer surface of the prism mover 430 .
- the fourth recess 430R4 and the fifth recess 430R5 may be spaced apart from each other in a first direction (x-axis direction).
- the fourth recess 430R4 and the fifth recess 430R5 may be disposed in regions corresponding to the first moving part 451 of the moving plate 450 to be described later.
- the fourth recess 430R4 and the fifth recess 430R5 may provide a space into which a part or all of the first moving part 451 is inserted.
- the fourth recess 430R4 and the fifth recess 430R5 may have the same or different shapes.
- the fourth recess 430R4 and the fifth recess 430R5 may have different cross-sectional shapes. Accordingly, the fourth recess 430R4 and the fifth recess 430R5 may provide a stopper function during tilt driving by the first moving part 451 .
- the sixth recess 430R6 may be disposed between the fourth recess 430R4 and the fifth recess 430R5.
- a fourth magnet 471 may be disposed in the sixth recess 430R6.
- the first housing holder 230 may be disposed on one side of the first housing 200 .
- the first housing holder 230 may be disposed on a fifth inner surface of the first housing 200 .
- the first housing holder 230 may be connected to the first housing 200 and cover a fifth inner surface of the opened first housing 200 .
- the first housing holder 230 may include at least one groove.
- the first housing holder 230 may include a first groove 230h1 and a second groove 230h2 formed on one surface facing the prism mover 430 .
- the first groove 230h1 and the second groove 230h2 may have a concave shape from one surface of the first housing holder 230 in a direction opposite to the one surface.
- the first groove 230h1 and the second groove 230h2 may be spaced apart from each other in a third direction (z-axis direction).
- the first groove 230h1 and the second groove 230h2 may be disposed in a region corresponding to a second moving part 452 to be described later.
- the first groove 230h1 and the second groove 230h2 may provide a space into which a part or all of the second moving part 452 is inserted.
- the first groove 230h1 and the second groove 230h2 may have the same or different shapes.
- the first groove 230h1 and the second groove 230h2 may have different cross-sectional shapes. Accordingly, the first groove 230h1 and the second groove 230h2 may provide a stopper function during tilt driving by the second moving unit 452 .
- the first housing holder 230 may further include a third groove 230h3.
- the third groove 230h3 may be formed on the other surface of the first housing holder 230 .
- the third groove 230h3 may have a concave shape from the other surface of the first housing holder 230 toward one surface.
- the third groove 230h3 may be disposed in a region corresponding to the sixth recess 430R6 of the prism unit 400 .
- the third groove 230h3 may be disposed in a region overlapping the sixth recess 430R6 in the second direction (y-axis direction).
- a fifth magnet 472 may be disposed in the third groove 230h3 .
- the fifth magnet 472 is disposed in an area corresponding to the fourth magnet 471 , and an attractive force may be formed between the two magnets. Accordingly, the prism unit 400 may be disposed at a position set by the attractive force of the fourth magnet 471 and the fifth magnet 472 .
- the moving plate 450 may be disposed between the prism unit 400 and the first housing holder 230 .
- the moving plate 450 may face the fifth outer surface.
- the moving plate 450 may include a first moving part 451 and a second moving part 452 having a shape protruding from the surface.
- the first moving part 451 may be disposed on one surface of the moving plate 450 facing the prism unit 400 .
- the first moving unit 451 may include a 1-1 moving unit 451a and a 1-2 moving unit 451b spaced apart in the first direction (x-axis direction) and having the same shape.
- the first-first moving part 451a may be disposed in a region corresponding to the fourth recess 430R4 of the prism mover 430 .
- the first-first moving part 451a may overlap the fourth recess 430R4 in a second direction (y-axis direction).
- the 1-2 moving part 451b may be disposed in a region corresponding to the fifth recess 430R5 of the prism mover 430 .
- the 1-2-th moving part 451b may overlap the fifth recess 430R5 in a second direction (y-axis direction).
- the first moving part 451 may provide a function of guiding the tilt of the prism unit 400 when the prism unit 400 is tilted.
- the prism unit 400 may tilt in a third direction (z-axis direction, up-down direction) in a first direction (x-axis direction) as a rotation axis.
- the first moving part 451 may guide the prism unit 400 to tilt in the third direction at a set angle.
- the second moving part 452 may be disposed on the other surface of the moving plate 450 opposite to one surface of the moving plate 450 and facing the first housing holder 230 .
- the second moving unit 452 may include a 2-1 moving unit 452a and a 2-2 moving unit 452b spaced apart in the third direction (z-axis direction) and having the same shape.
- the 2-1 moving part 452a and the 2-2 moving part 452b are located in a region corresponding to the area between the 1-1 moving part 451a and the 1-2 moving part 451b. can be placed.
- the second-first moving part 452a may be disposed in an area corresponding to the first groove 230h1 of the first housing holder 230 .
- the 2-1 moving part 452a may overlap the first groove 230h1 in a second direction (y-axis direction).
- the 2-2 moving part 452b may be disposed in an area corresponding to the second groove 230h2 of the first housing holder 230 .
- the 2-2 moving part 452b may overlap the second groove 230h2 in a second direction (y-axis direction).
- the second moving unit 452 may provide a function of guiding the tilt of the prism unit 400 when the prism unit 400 is tilted.
- the prism unit 400 may tilt in a third direction (z-axis direction) as a rotation axis in a first direction (x-axis direction, left-right direction).
- the second moving part 452 may guide the prism unit 400 to tilt in the first direction at a set angle.
- FIG. 11 and 12 are diagrams illustrating an arrangement relationship of magnets of a first camera actuator according to an embodiment.
- the magnet 350 according to the embodiment may have a set size and may be disposed at a set position.
- the magnet 350 may include a first magnet 351 , a second magnet 352 , and a third magnet 353 .
- the first magnet 351 may be disposed on a first outer surface of the prism unit 400 .
- the first magnet 351 may be disposed in the first recess 430R1 of the prism unit 400 .
- the first magnet 351 may have a size and shape corresponding to that of the first recess 430R1.
- the first magnet 351 may have the same shape as the first recess 430R1 .
- the first magnet 351 may have the same size as the first recess 430R1 or smaller than the first recess 430R1 .
- the first magnet 351 may be inserted and fixed in the first recess 430R1, and may be disposed at a set position.
- the second magnet 352 may be disposed on the second outer surface of the prism unit 400 .
- the second magnet 352 may be disposed in the second recess 430R2 of the prism unit 400 .
- the second magnet 352 may have a size and shape corresponding to that of the second recess 430R2.
- the second magnet 352 may have the same shape as the second recess 430R2 .
- the second magnet 352 may have the same size as the second recess 430R2 or smaller than the second recess 430R2 .
- the second magnet 352 may be inserted and fixed in the second recess 430R2, and may be disposed at a set position.
- the second magnet 352 may be spaced apart from the first magnet 351 .
- the second magnet 352 may be spaced apart from the first magnet 351 in a first direction (x-axis direction).
- the second magnet 352 may be disposed to face the first magnet 351 in a first direction.
- the second magnet 352 may overlap the first magnet 351 in a first direction.
- the center of the second magnet 352 may overlap the center of the first magnet 351 in the first direction.
- the second magnet 352 may have a size and shape corresponding to that of the first magnet 351 .
- the second magnet 352 may have the same shape and the same size as that of the first magnet 351 .
- the third magnet 353 may be disposed on a third outer surface of the prism unit 400 .
- the third magnet 353 may be disposed in the third recess 430R3 of the prism unit 400 .
- the third magnet 353 may have a size and shape corresponding to that of the third recess 430R3.
- the third magnet 353 may have the same shape as the third recess 430R3 .
- the third magnet 353 may have the same size as the third recess 430R3 or smaller than the third recess 430R3 . Accordingly, the third magnet 353 may be inserted and fixed in the third recess 430R3, and may be disposed at a set position.
- the third magnet 353 When the third magnet 353 is viewed from the top (z-axis direction), the third magnet 353 is larger than the first and second magnets 351 and 352 in the second direction (y-axis direction) as a reference. It may be disposed on the top. For example, one end of the third magnet 353 may be disposed closer to the fifth outer surface of the prism mover 430 than one end of each of the first and second magnets 351 and 352 . . . The center of the third magnet 353 may not be disposed on the same line as the centers of the first magnet 351 and the second magnet 352 . In detail, the centers of the first magnet 351 and the second magnet 352 may be disposed on the same line with respect to the first direction (x-axis direction).
- the center of the third magnet 353 may be disposed above the imaginary line connecting the centers of the first and second magnets 351 and 352 in the second direction (y-axis direction). In detail, the center of the third magnet 353 may be closer to the fifth outer surface of the prism mover 430 than the centers of the first and second magnets 351 and 352 in the second direction.
- Each of the first to third magnets 351 , 352 , and 353 may have a set size.
- the first magnet 351 may extend in the second direction (y-axis direction) and have a first length d1 defined as the second direction length.
- the second magnet 352 may extend in the second direction and have a second length d2 defined as the length in the second direction.
- the first length d1 and the second length d2 may be the same.
- the length in the second direction may be the same.
- the third magnet 353 has a shape extending in a first direction (x-axis direction) and a second direction (y-axis direction), and a third length d3 defined as a length in the first direction (x-axis direction) and a fourth length d4 defined as a length in the second direction (y-axis direction).
- the third length d3 may be greater than the fourth length d4.
- the third length d3 may be longer than a length of the prism 410 in the first direction, and the third length d3 may be shorter than a length of the prism mover 430 in the first direction. Also, the third length d3 may be shorter than an interval g1 in the first direction (x-axis direction) between the first magnet 351 and the second magnet 352 .
- the third length d3 may be about 50% to about 98% of the gap g1.
- the third length d3 may be about 60% to about 98% of the interval g1.
- the first camera actuator 1000 may cause interference with other actuators or other camera modules disposed adjacent to the first camera actuator 1000 , thereby causing the OIS of the first camera actuator 1000 .
- the accuracy of the operation is reduced or the OIS effect is insignificant.
- the electromagnetic force of the third magnet 353 is reduced, so that power consumption increases.
- the third magnet 353 is separated from the first magnet 351 and the second magnet 352 with the second magnet 352 .
- a portion may overlap in three directions (z-axis direction). Accordingly, leakage magnetic flux of the magnet 350 may increase.
- the fourth length d4 may be the same as or different from the first length d1 and the second length d2.
- the fourth length d4 may be the same as the first length d1 and the second length d2.
- the third magnet 353 may be disposed in an area corresponding to the first magnet 351 and the second magnet 352 in the first direction (x-axis direction).
- the third magnet 353 is formed between the first and second magnets 351 and 352 and the They may overlap in the first direction.
- a portion of the third magnet 353 may overlap the first and second magnets 351 and 352 .
- the second direction length OL1 of the third magnet 353 overlapping the first magnet 351 is approximately equal to the second direction length (the fourth length d4) of the third magnet 353 ). It may be 50% to 98%.
- the second direction length OL2 of the third magnet 353 overlapping the second magnet 352 is about 50% to about 50% of the second direction length (the fourth length d4) of the third magnet 353 . It can be 98%.
- the second direction lengths OL1 and OL2 of the first and second magnets 351 and 352 and the third magnet 353 overlapping each other may be the same.
- the second direction (y-axis direction) lengths OL1 and OL2 of the third magnet 353 overlapping the first and second magnets 351 and 352 are equal to the fourth length d4. from about 60% to about 98%.
- the third magnet 353 is not disposed adjacent to the first magnet 351 and the second magnet 352 it may not be That is, the second direction distance between the imaginary straight line connecting the centers of the first and second magnets 351 and 352 and the center of the third magnet 353 may increase, thereby reducing leakage magnetic flux. may be insignificant.
- the first camera actuator 1000 may cause interference with other actuators or other camera modules disposed adjacent to the first camera actuator 1000 , thereby causing the OIS of the first camera actuator 1000 .
- the accuracy of the operation is reduced or the OIS effect is insignificant.
- the third magnet 353 is adjacent to the first magnet 351 and the second magnet 352 .
- this arrangement has an effect of reducing leakage magnetic flux, the third magnet 353 may be disposed adjacent to the prism 410 .
- the height of the prism mover 430 in the third direction increases so that the third magnet 353 does not interfere with the prism 410 so that the size of the prism unit 400 increases. problems may arise.
- the thickness of the third magnet 353 may be reduced so that the third magnet 353 does not interfere with the prism 410 . In this case, the electromagnetic force of the third magnet 353 is reduced and consumed. There is a problem with increasing power. Accordingly, it is preferable that the lengths OL1 and OL2 with respect to the fourth length d4 satisfy the above-described range.
- FIG. 13 is a cross-sectional view illustrating a cross-section taken along line A-A' of FIG. 3
- FIG. 14 is a cross-sectional view illustrating a cross-section taken along line B-B' of FIG. 3 .
- the prism unit 400 may be tilted to a first axis or a second axis by the first driving unit 300 .
- the first axis tilting may mean tilting in the z axis direction (third direction, up and down direction) with the x axis direction (first direction) shown in the drawing as the rotation axis
- the second axis tilting is shown in the drawing It may mean tilting in the x-axis direction (first direction, left-right direction) using the illustrated z-axis direction (third direction) as a rotation axis.
- the prism unit 400 may be provided rotatably about a first virtual straight line formed by the third coil unit 333 and the third magnet 353 in a third direction (z-axis direction) as an axis.
- the prism unit 400 moves in the first direction ( left and right) can be tilted.
- the second moving part 452 may guide the prism unit 400 to be tilted in a set direction and a set angle.
- the prism unit 400 may provide a stopper function so as not to be tilted beyond the angle set by the second moving unit 452 .
- the first virtual straight line may be a straight line extending in the third direction, or a straight line connecting the centers of the components 333 and 353 .
- the first coil part 331 , the second coil part 332 , the first magnet 351 , and the second magnet 352 move in a first direction (x-axis direction). It may be provided to be rotatably movable about a second virtual straight line to be formed as an axis.
- attractive force and repulsive force may be generated between the first coil unit 331 and the first magnet 351 , and between the second coil unit 332 and the second magnet 352 . There may be attractive and repulsive forces.
- the prism unit 400 may be tilted in a third direction (up and down direction) by attractive and repulsive forces between each of the coil units 331 and 332 and each of the magnets 351 and 352 .
- the first moving unit 451 may guide the prism unit 400 to be tilted in a set direction and a set angle.
- the prism unit 400 may provide a stopper function so as not to be tilted beyond the angle set by the first moving unit 451 .
- the imaginary second straight line may be a straight line extending in the first direction, and may be a straight line connecting the centers of the components 331 , 332 , 351 , 352 .
- the first camera actuator 1000 includes a first driving unit 300 of a VCM (Voice Coil Motor) type, and a movement path of light incident by the first driving unit 300 is defined as a first axis and/or Alternatively, an optical image stabilizer (OIS) may be implemented by controlling the second axis. In this case, the first camera actuator 1000 may have improved optical properties by minimizing the occurrence of a decent and a tilt phenomenon when implementing OIS.
- VCM Vehicle Coil Motor
- the first driving unit 300 of the first camera actuator 1000 includes a magnet 350 , and the magnet 350 is disposed at a set position and may have a set size. Accordingly, the first camera actuator 1000 may minimize or prevent leakage magnetic flux, thereby preventing interference with other actuators or other camera modules disposed adjacently. Accordingly, the first camera actuator 1000 according to the embodiment may prevent the accuracy of the OIS operation from being reduced by the other actuators or other camera modules.
- 15 and 16 are simulation data for magnetic force distribution of a first camera actuator according to Examples and Comparative Examples.
- Examples and Comparative Examples are simulation data for magnetic force distribution of a first camera actuator according to Examples and Comparative Examples.
- the operation and effect of the present invention will be described in more detail through Examples and Comparative Examples.
- a first camera actuator including a cover member, a first housing, a first driving unit, a prism unit, a first housing holder, and a moving plate was manufactured.
- the first driving unit includes first to third magnets, the first magnet is disposed on the first outer surface of the prism mover on which the prism is disposed, and the first outer surface and the first direction (x-axis direction) ), arranged a second magnet on the second outer surface facing, and arranged a third magnet on the bottom surface of the prism unit.
- the third magnet was manufactured so that the length in the first direction has 90% or more of the interval in the first direction between the first and second magnets.
- the third magnet is disposed at a position where the length of the third magnet overlapping the first and second magnets in the second direction (y-axis direction) is 50% or more of the total length of the third magnet in the second direction did Thereafter, a first camera module was manufactured by connecting the first camera actuator and the second camera actuator, and the second camera module was placed side by side at a position adjacent to the first camera module, and then the magnetic force distribution was measured.
- a first camera actuator including a cover member, a first housing, a first driving unit, a prism unit, a first housing holder, and a moving plate was manufactured.
- the first driving unit includes first to third magnets, the first magnet is disposed on the first outer surface of the prism mover on which the prism is disposed, and the first outer surface and the first direction (x-axis direction) ), arranged a second magnet on the second outer surface facing, and arranged a third magnet on the bottom surface of the prism unit.
- the third magnet was manufactured so that the length in the first direction has less than 50% of the distance in the first direction between the first and second magnets.
- the third magnet is disposed at a position where the length of the third magnet overlapping the first and second magnets in the second direction (y-axis direction) is 50% or more of the total length of the third magnet in the second direction did Thereafter, a first camera module was manufactured by connecting the first camera actuator and the second camera actuator, and the second camera module was placed side by side at a position adjacent to the first camera module, and then the magnetic force distribution was measured.
- Table 1 shows experimental values for the magnitude (mN) of force applied according to the presence or absence of the second camera module in the first camera module and the distance from the second camera module according to Examples and Comparative Examples.
- Table 1 shows that when only the first camera module exists, the magnitude of the force applied in the first to third directions (x, y, and z-axis directions), the first camera module and the second camera module are 1.275 mm to These are experimental values for the magnitude of the force applied in the first to third directions (x, y, z-axis directions) when spaced apart by 8 mm intervals.
- the distance between the first and second camera modules is about 2 mm or less and about 6 mm or more, it can be seen that the amount of change in the magnitude of the force applied in the first direction (x-axis direction) is smaller in the embodiment than in the comparative example have.
- the distance between the first and second camera modules is about 1.275 mm or more, it can be seen that the amount of change in the magnitude of the force applied in the second direction (y-axis direction) is smaller in the example than in the comparative example.
- the first camera actuator 1000 of the camera module 10 includes a first driving unit 300 including a magnet 350 disposed at a set size and a set position to reduce leakage magnetic flux. have. Accordingly, even when other actuators or other camera modules are arranged side by side in a position adjacent to the camera module 10, magnetic interference by the other actuators or the other camera modules can be minimized. Accordingly, the embodiment may provide an OIS function capable of effectively controlling vibrations caused by hand shake using the first camera actuator 1000 .
- FIG. 17 is a perspective view of a second camera actuator included in the camera module according to the embodiment
- FIG. 18 is a perspective view in which some components are omitted from the second camera actuator according to the embodiment
- FIG. 19 is an exploded perspective view in which some components are omitted in the second camera actuator according to the embodiment.
- the second camera actuator 2000 includes a base 2020, a circuit board 2410 disposed outside the base 2020, a fourth driving unit 2142, and a third lens assembly ( 2130) may be included.
- 18 is a perspective view in which the base 2020 and the circuit board 2410 are omitted from FIG. 17 , and referring to FIG. 18 , the second camera actuator 2000 according to the embodiment includes a first guide part 2210 and a first It may include a second guide unit 2220 , a first lens assembly 2110 , a second lens assembly 2120 , a third driving unit 2141 , and a fourth driving unit 2142 .
- the third driving unit 2141 and the fourth driving unit 2142 may include a coil or a magnet.
- the third driving unit 2141 and the fourth driving unit 2142 include a coil
- the third driving unit 2141 includes a first coil unit 2141b and a third yoke 2141a.
- the fourth driving unit 2142 may include a second coil unit 2142b and a fourth yoke 2142a.
- the third driving unit 2141 and the fourth driving unit 2142 may include a magnet.
- the second camera actuator 2000 includes a base 2020 , a first guide part 2210 , a second guide part 2220 , a first lens assembly 2110 , and a second lens. It may include an assembly 2120 and a third lens assembly 2130 .
- the second camera actuator 2000 includes a base 2020 , a first guide part 2210 disposed on one side of the base 2020 , and a second guide part disposed on the other side of the base 2020 . (2220), a first lens assembly 2110 corresponding to the first guide part 2210, a second lens assembly 2120 corresponding to the second guide part 2220, and the first guide part 2210 A first ball bearing 2117 (refer to FIG.
- the second camera actuator 2000 may include a third lens assembly 2130 disposed in front of the first lens assembly 2110 with respect to the optical axis direction.
- a first guide part 2210 disposed adjacent to a first sidewall of the base 2020 and a second guide part 2210 disposed adjacent to a second sidewall of the base 2020 are illustrated.
- 2 guide units 2220 may be included.
- the first guide part 2210 may be disposed between the first lens assembly 2110 and the first sidewall of the base 2020 .
- the second guide part 2220 may be disposed between the second lens assembly 2120 and a second sidewall of the base 2020 .
- the first sidewall and the second sidewall of the base 2020 may be disposed to face each other.
- the first guide part 2210 and the second guide part 2220 may not be integrally formed separately from the base 2020 .
- the first guide part 2210 and the second guide part 2220 may be injected separately from the base 2020, so that the first and second guide parts 2210 and 2220 are It is possible to inject more precisely, and it is possible to prevent the occurrence of gradients due to injection.
- Lengths of the first guide part 2210 and the second guide part 2220 in the first direction (x-axis direction) may be shorter than lengths of the base part 2020 in the first direction.
- lengths of the first guide part 2210 and the second guide part 2220 in the second direction may be shorter than lengths of the base part 2020 in the second direction. Accordingly, when the rails 2212 and 2222 are disposed on each of the first guide part 2210 and the second guide part 2220, it is possible to minimize the generation of gradient during injection, and to prevent the straight line of the rail from being distorted. can do.
- 20 is a perspective view of a first guide part and a second guide part in the second camera actuator according to the embodiment.
- the first guide part 2210 and the second guide part 2220 may guide the first lens assembly 2110 and the second lens assembly 2120 . That is, the first lens assembly 2110 and the second lens assembly 2120 may move in a second direction (y-axis direction) along the first and second guide parts 2210 and 2220 .
- the first guide part 2210 may include a single or a plurality of first rails 2212 .
- the second guide part 2220 may include a single or a plurality of second rails 2222 .
- the first rail 2212 may be connected from one surface to the other surface of the first guide part 2210 .
- the first rail 2212 may include a first-first rail 2212a and a first-second rail 2212b.
- the first-first rail 2212a and the first-second rail 2212b may extend in the same direction.
- the 1-1 rail 2212a and the 1-2 rail 2212b may extend in a second direction (y-axis direction).
- the first guide part 2210 may further include a first support part 2213 and a first guide protrusion part 2215 .
- the first support part 2213 may be disposed between the first-first rail 2212a and the first-second rail 2212b.
- first guide protrusion 2215 may extend in a lateral direction perpendicular to the extending direction of the first rail 2212 .
- a first protrusion 2214p may be disposed on the first guide protrusion 2215 .
- the first protrusion 2214p may include a 1-1 protrusion 2214p1 and a 1-2 protrusion 2214p2 .
- the second rail 2222 may be connected from one surface to the other surface of the second guide part 2220 .
- the second rail 2222 may include a 2-1 rail 2222a and a 2-2 rail 2222b.
- the second-first rail 2222a and the second-second rail 2222b may extend in the same direction.
- the 2-1 rail 2222a and the 2-2 rail 2222b may extend in a second direction (y-axis direction).
- the second guide part 2220 may further include a second support part 2223 and a second guide protrusion part 2225 .
- the second support part 2223 may be disposed between the 2-1 rail 222a and the 2-2 rail 222b.
- the second guide protrusion 2225 may extend in a lateral direction perpendicular to the extending direction of the second rail 2222 .
- a second protrusion 2224p may be disposed on the second guide protrusion 2225 .
- the second protrusion 2224p may include a 2-1 protrusion 2224p1 and a 2-2 protrusion 2224p2 .
- the 1-1 protrusion 2214p1 and the 1-2 protrusion 2214p2 of the first guide part 2210 and the 2-1 protrusion 2224p1 and the 2-2 protrusion of the second guide part 2220 are 2224p2 may be coupled to a third housing of a third lens assembly 2130 to be described later.
- the embodiment may include a plurality of guide parts 2210 and 2220, and each of the plurality of guide parts 2210 and 2220 may include a plurality of rails. Accordingly, even if one of the rails is damaged, there is an effect that can ensure the accuracy of the other rail. In addition, as each of the plurality of guide parts 2210 and 2220 includes a plurality of rails, even if there is an issue of the friction force of the ball on any one rail, the ball can roll through the other rails, so it can be effectively driven. .
- each of the plurality of guide parts 2210 and 2220 includes a plurality of rails, alignment and spacing of the plurality of lens assemblies 2110 and 2120 can be effectively controlled, and the angle of view is changed or the focus is out of focus. This has the effect of preventing it from happening. Accordingly, the embodiment may have improved picture quality and resolution.
- FIG. 21 and 22 are additional perspective views of the first guide part shown in FIG. 20
- FIG. 23 is a perspective view of the first driving part in the second camera actuator according to the embodiment.
- FIG. 24 is an exemplary view of driving in the second camera actuator according to the embodiment.
- the first lens assembly 2110 includes a first lens barrel 2112a in which the first lens 2113 is disposed, and a first drive unit housing 2112b in which the first drive unit 2116 is disposed. can do.
- the first lens barrel 2112a and the first driving unit housing 2112b may be defined as a first housing, and the first housing may have a barrel or barrel shape.
- the first driving unit 2116 may correspond to the first rail 2212 .
- the first driving unit 2116 may be a magnet driving unit, but is not limited thereto, and a coil may be disposed in some cases.
- the second lens assembly 2120 may include a second lens barrel (not shown) in which a second lens (not shown) is disposed and a second driving unit housing (not shown) in which a second driving unit (not shown) is disposed. have.
- the second lens barrel (not shown) and the second driving unit housing (not shown) may be defined as a second housing, and the second housing may have a barrel or barrel shape.
- the second driving unit may correspond to the second rail 2222 .
- the second driving unit may be a magnet driving unit, but is not limited thereto, and a coil may be disposed in some cases.
- Embodiments may be driven using single or multiple balls.
- the first ball bearing 2117 and the second guide part 2220 and the second lens assembly are disposed between the first guide part 2210 and the first lens assembly 2110 .
- a second ball bearing (not shown) disposed between the 2120 may be included.
- the first ball bearing 2117 includes a single or a plurality of 1-1 ball bearings 2117a disposed above the first driving unit housing 2112b and the first driving unit housing 2112b. It may include a single or a plurality of 1-2 ball bearings 2117b disposed on the lower side.
- the 1-1 ball bearing 2117a among the first ball bearings 2117 moves along the 1-1 rail 2212a which is one of the first rails 2212
- the first ball bearing 2117 ) of the 1-2 ball bearings 2117b may move along the 1-2 first rail 2212b, which is the other one of the first rails 2212 .
- the first lens assembly 2110 may include a first assembly groove 2112b1 in which the first ball bearing 2117 is disposed.
- the second lens assembly 2120 may include a second assembly groove (not shown) in which the second ball is disposed.
- the first assembly groove 2112b1 of the first lens assembly 2110 may be plural. In this case, a distance between two first assembly grooves 2112b1 among the plurality of first assembly grooves 2112b1 in the optical axis direction may be longer than a thickness of the first lens barrel 2112a.
- the first assembly groove 2112b1 of the first lens assembly 2110 may have a V shape.
- the second assembly groove (not shown) of the second lens assembly 2120 may have a V shape.
- first assembly groove 2112b1 of the first lens assembly 2110 may have a U shape or a shape contacting the first ball bearing 2117 at two or three points.
- second assembly groove (not shown) of the second lens assembly 2120 may have a U-shape other than a V-shape or a shape contacting the first ball bearing 2117 at two or three points.
- the first driving part 2116 includes a first magnet 2116b and a first yoke 2116a
- the first yoke 2116a includes a first support part 2116a1 and a first side protrusion part ( 2116a2).
- the first side protrusion 2116a2 may extend from the first support part 2116a1 to a side surface of the first magnet 2116b.
- the first side protrusions 2116a2 may be disposed on both side surfaces of the first magnet 2116b.
- the first yoke 2116a may further include a first fixing protrusion 2116a3 extending in a direction different from, for example, the opposite direction to, the first side protrusion 2116a2.
- the first fixing protrusion 2116a3 may be disposed at an intermediate position of the first support portion 2116a1, but is not limited thereto.
- the second driving part 2126 includes a second magnet 2126b and a second yoke 2126a, and the second yoke 2126a includes a second support part (not shown) and a second side protrusion (not shown). may be included (see the second yoke 2126a of FIG. 25 ).
- the second side protrusion may extend from the second support to a side surface of the second magnet 2126b.
- the second side protrusion may be disposed on both side surfaces of the second magnet 2126b.
- the second yoke 2126a may further include a second fixing protrusion (not shown) extending in a direction different from, for example, the opposite direction to, the second side protrusion.
- the second fixing protrusion may be disposed at an intermediate position of the second support, but is not limited thereto.
- the magnetization method of the magnet in the first driving unit 2116 may be a vertical magnetization method.
- both the N pole 2116N and the S pole 2116S of the magnet may be magnetized to face the first coil part 2141b.
- the N pole 2116N and the S pole 2116S of the magnet may be respectively disposed in the first coil unit 2141b to correspond to a region in which current flows in the y-axis direction perpendicular to the ground.
- a magnetic force DM is applied in the direction opposite to the x-axis at the N pole 2116N of the first driving unit 2116 (the direction of the magnetic force may be a positive direction or a negative direction of the illustrated direction),
- an electromagnetic force DEM may act in the z-axis direction according to Fleming's left hand rule.
- a magnetic force DM is applied in the x-axis direction at the S pole 2116S of the first driving unit 2116, and in the first coil unit 2141b corresponding to the S pole 2116S in the y-axis opposite direction perpendicular to the ground.
- the electromagnetic force DEM may act in the z-axis direction according to Fleming's left hand rule (the direction of the electromagnetic force may be positive or negative in the illustrated direction).
- the third driving unit 2141 including the first coil unit 2141b is in a fixed state
- the first lens assembly 2110 which is a mover in which the first driving unit 2116 is disposed, generates electromagnetic force ( DEM) may move back and forth along the rail of the first guide part 2210 in a direction parallel to the z-axis direction.
- the electromagnetic force DEM may be controlled in proportion to the current DE applied to the first coil unit 2141b.
- the second camera actuator 2000 may prevent or minimize the occurrence of lens decenter or tilt during zooming. Accordingly, it is possible to improve an alignment characteristic between a plurality of lens groups, thereby preventing a change in an angle of view or an out-of-focus occurrence, thereby improving image quality and resolution.
- FIG. 25 is a cross-sectional view illustrating a cross-section taken along line C-C' in FIG. 17
- FIGS. 26 and 27 are enlarged views illustrating the S region of FIG. 25 .
- the second camera actuator 2000 may include a base 2020 and a lens assembly disposed on the base 2020 .
- the third lens assembly 2130 , the first lens assembly 2110 , and the second lens assembly 2120 may be sequentially disposed on the base 2020 based on the light incident direction, and the image sensor ( 2180 may be disposed behind the second lens assembly 2120 .
- the second camera actuator 2000 may be driven by the electromagnetic force of the magnet and the coil unit as described above.
- the first lens assembly 2110 may include the first driving unit 2116 and the third driving unit 2141 , and the first driving unit 2116 . and the third driving unit 2141 .
- the second lens assembly 2120 may include the second driving unit 2126 and the fourth driving unit 2142 , and driven by the second driving unit 2126 and the fourth driving unit 2142 . can do.
- the first driving unit 2116 may include a first magnet 2116b and a first yoke 2116a
- the third driving unit 2141 may include a first coil unit 2141b.
- a third yoke 2141a may be included.
- the third driving unit 2141 may include a first circuit board 2041a between the first coil unit 2141b and the third yoke 2141a.
- the second camera actuator 2000 may include a first spacer 2141c and a first position detection sensor 2071 disposed on the base 2020 .
- the first coil unit 2141b and the first position detection sensor 2071 may be electrically connected to the first circuit board 2041a.
- the first spacer 2141c may be formed of at least one of polycarbonate (PC), polyethylene terephthalate glycol (PETG), polyethylene (PE), and polypropylene (PP), but is not limited thereto.
- the first spacer 2141c includes a first support part 2141c1 and a first protrusion part 2141c3 protruding from the first support part 2141c1, and the first position detection sensor 2071 includes the first protrusion part ( 2141c3), and the first protrusion 2141c3 may be disposed in the hollow of the first coil unit 2141b, which is a coil driving unit.
- the first spacer 2141c may include a first connection part 2141c2 connecting the first protrusion 2141c3 and the first support part 2141c1.
- the first circuit board 2041a includes a first substrate region 2041a1 disposed on the first spacer 2141c and a second substrate region 2041a3 disposed to be spaced apart from the first substrate region 2041a1.
- the first circuit board 2041a may include a 2-2 substrate region 2041a2 connecting the first substrate region 2041a1 and the second substrate region 2041a3.
- the second substrate region 2041a3 may be disposed in the hollow of the first coil unit 2141b serving as a coil driving unit.
- the first position detection sensor 2071 may be disposed on the first spacer 2141c.
- the first position detection sensor 2071 may be disposed on the second substrate area 2041a3 .
- the first position detection sensor 2071 may be a magnetic sensor.
- the first position detection sensor 2071 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 2126 may include a second magnet 2126b and a second yoke 2126a
- the fourth driving unit 2142 may include a second coil unit 2142b.
- a fourth yoke 2142a may be included.
- the fourth driving unit 2142 may include a second circuit board 2041b between the second coil unit 2142b and the fourth yoke 2142a.
- the second camera actuator 2000 may include a second spacer 2142c and a second position detection sensor 2072 disposed on the base 2020 .
- the second coil unit 2142b and the second position detection sensor 2072 may be electrically connected to the second circuit board 2041b.
- the second spacer 2142c may be formed of at least one of polycarbonate (PC), polyethylene terephthalate glycol (PETG), polyethylene (PE), and polypropylene (PP), but is not limited thereto.
- the second spacer 2142c may adopt the technical characteristics of the first spacer 2141c.
- the second spacer 2142c includes a second protrusion (not shown) protruding from a second support part (not shown), and the second position detection sensor 2072 is disposed on the second protrusion. and the second protrusion may be disposed in the hollow of the fourth driving unit 2142 that is a coil driving unit.
- the second spacer 2142c may include a second connection part (not shown) connecting the second protrusion part and the second support part.
- the second circuit board 2041b includes a third substrate region (not shown) disposed on the second spacer 2142c and a fourth substrate region (not shown) disposed to be spaced apart from the third substrate region.
- the second circuit board 2041b may include a 4-2 th substrate region connecting the third substrate region and the fourth substrate region.
- the 4-2th substrate region may be disposed in the hollow of the fourth driving unit 2142 that is a coil driving unit.
- the second position detection sensor 2072 may be disposed on the second spacer 2142c.
- the second position detection sensor 2072 may be disposed on the 4-2th substrate area.
- the second position detection sensor 2072 may be any one of a coil type magnetic sensor, a solid magnetic sensor such as a Hall sensor, or a resonance type magnetic sensor, but is not limited thereto.
- the first lens assembly 2110 is formed by an electromagnetic force (DEM) between the first magnet 2116b of the first driving unit 2116 and the first coil unit 2141b of the third driving unit 2141 . It can be driven in the optical axis direction.
- the electromagnetic force DEM may be affected by the distance DCM between the first magnet 2116b and the first coil unit 2141b.
- the magnetic flux of the magnet detected by the position detection sensor changes, so that the position detection performance of the position detection sensor is affected.
- FIG. 28 shows magnetic flux data according to the separation distance between the magnet and the first position detection sensor 2071 in the second camera actuator 2000 according to the embodiment and the comparative example.
- the height of the coil unit must be secured in order to secure the thrust of the lens assembly.
- the position detection sensor is disposed on the substrate at the lower end of the coil unit, as the height of the coil unit increases, so that the distance between the magnet and the position detection sensor increases, so that the distance between the magnet and the position detection sensor
- the first distance DH1 was limited to be secured at least 800 ⁇ m or more. Accordingly, in the prior art (comparative example), the magnetic flux of the magnet detected by the position detection sensor was at a level of securing about 50 mT.
- the first spacer 2141c includes a first protrusion 2141c3 protruding from the first support 2141c1
- the first position detection sensor 2071 includes the first protrusion 2141c3.
- the second distance DH2 between the first magnet 2116b and the first position detection sensor 2071 can be significantly reduced. Accordingly, in the embodiment, the magnetic flux of the first magnet 2116b detected by the first position detection sensor 2071 may be remarkably improved.
- the second distance DH2 is set to about 400 ⁇ m or less, about twice or more than that of the conventional (comparative example). can be obtained briefly.
- the magnetic flux between the first magnet 2116b and the first position detection sensor 2071 can be secured by about 150 mT or more, which is about three times higher than that of the comparative example. Accordingly, the second camera actuator 2000 according to the embodiment can further improve thrust and, at the same time, simultaneously increase the sensitivity of the position detection sensor, so that it can have more improved characteristics.
- 29 and 30 are magnetic flux density distribution data of a second camera actuator according to Comparative Examples and Examples.
- the yoke of the driving part of the first lens assembly 2110 or the second lens assembly 2120 may include a side protrusion extending to the side of the magnet. Accordingly, the embodiment may acquire magnetic flux density distribution data as shown in FIG. 30 . That is, the embodiment can prevent magnetic field interference (IF) between magnets by including the side protrusions, thereby improving the precision of camera control. As the yoke according to the embodiment includes the side protrusion, it is possible to prevent leakage of magnetic flux generated from the magnet. And, as the side protrusions are disposed in a region having a high magnetic flux density, the magnetic flux can be concentrated (FC), which increases the density between the flux line and the coil to increase the Lorentz Force, thereby increasing the thrust. can improve
- FC concentrated
- 31 is an exemplary view of an integrated body in a camera module according to another embodiment.
- the integrated body 2315 may include a first body region 2315a and a second body region 2315b.
- the second camera actuator 2000 may be disposed in the first body region 2315a
- the first camera actuator 1000 may be disposed in the second body region 2315b .
- FIG. 32 is a perspective view of a mobile terminal to which a camera module according to an embodiment is applied.
- the mobile terminal 3000 may include a camera module 10 provided on the rear side.
- the camera module 10 may include an image capturing function.
- the camera module 10 may include at least one of an auto focus function, a zoom function, and an OIS function.
- the camera module 10 may process a still image image or an image frame of 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 display unit (not shown) of the mobile terminal 3000 and stored in a memory (not shown).
- the camera module may be further disposed on the front of the mobile terminal 3000 .
- the camera module 10 may include a first camera module 10A and a second camera module 10B.
- the first camera module 10A and the second camera module 10B may include a camera module including the first camera actuator 1000 and the second camera actuator 2000 described above. . Accordingly, the camera module may provide an OIS function along with an AF or zoom function.
- the mobile terminal 3000 may further include an autofocus device 3010 .
- the auto focus device 3010 may include an auto focus function using a laser.
- the autofocus device 3010 may be mainly used in a condition in which the autofocus function using the image of the camera module 10 is deteriorated, for example, in proximity of 10 m or less or in a dark environment.
- the autofocus device 3010 may include a light emitting unit including a vertical cavity surface emitting laser (VCSEL) semiconductor device and a light receiving unit that converts light energy such as a photodiode into electrical energy.
- VCSEL vertical cavity surface emitting laser
- the mobile terminal 3000 may further include a flash module 3030 .
- the flash module 3030 may include a light emitting device emitting light therein.
- the flash module 3030 may be operated by a camera operation of a mobile terminal or a user's control.
- FIG. 33 is a perspective view of a vehicle to which a camera module according to an embodiment is applied.
- FIG. 33 is an external view of a vehicle including a vehicle driving assistance device to which the camera module 10 according to the embodiment is applied.
- a vehicle 4000 may include wheels 4210 and 4230 and a camera module 4100 that rotate by a power source.
- the camera module 4100 may be disposed toward at least one of a front, a rear, a side, an upper surface, and a lower surface of the vehicle to process a still image image or an image frame of a moving image.
- the camera module 4100 may include the first camera actuator 1000 and the second camera actuator 2000 described above.
- the camera module may provide an OIS function along with an AF or zoom function.
- the camera module 4100 may be disposed in the vehicle 4000 to provide various information.
- the camera module 4100 may photograph a front image or a surrounding image of the vehicle 4000 and may acquire image information through a camera sensor.
- the camera module 4100 may determine a lane non-identification situation using the obtained image information, and may provide information on a virtual lane when the lane is not identified.
- the camera module 4100 may acquire a front image of the vehicle 4000 , and a processor (not shown) may analyze an object included in the front image and provide image information.
- a processor (not shown) may analyze an object included in the front image and provide image information.
- the processor detects these objects and provides image information can do.
- the processor may further supplement the image information by acquiring distance information from the object detected through the camera module 4100 .
- the image information may be information about an object photographed in an image.
Abstract
Description
제1 및 제2 카메라 모듈 사이의 간격 (mm) | 실시예 | 비교예 | |||||
Virtual Force (mN) | Virtual Force (mN) | ||||||
X | Y | Z | X | Y | Z | ||
제1 카메라 모듈 Only | 결과 | -0.175 | 0.129 | 0.229 | -0.173 | 0.462 | 0.225 |
1.275 mm | 결과 | -0.188 | -0.423 | 0.287 | -0.302 | -1.708 | 0.363 |
변화량 | -0.013 | -0.552 | 0.058 | -0.129 | -1.246 | 0.139 | |
2 mm | 결과 | -0.088 | -0.274 | 0.288 | -0.281 | -1.449 | 0.349 |
변화량 | 0.087 | -0.403 | 0.058 | -0.108 | -0.986 | 0.125 | |
3 mm | 결과 | -0.055 | -0.123 | 0.272 | -0.276 | -1.230 | 0.335 |
변화량 | 0.120 | -0.252 | 0.043 | -0.103 | -0.768 | 0.110 | |
4 mm | 결과 | -0.053 | -0.037 | 0.267 | -0.253 | -1.047 | 0.287 |
변화량 | 0.122 | -0.166 | 0.038 | -0.080 | -0.585 | 0.062 | |
5 mm | 결과 | -0.067 | 0.022 | 0.258 | -0.213 | -0.894 | 0.286 |
변화량 | 0.107 | -0.107 | 0.029 | -0.040 | -0.431 | 0.062 | |
6 mm | 결과 | -0.094 | 0.070 | 0.253 | -0.082 | -0.806 | 0.277 |
변화량 | 0.081 | -0.059 | 0.023 | 0.091 | -0.344 | 0.053 | |
7 mm | 결과 | -0.100 | 0.093 | 0.264 | -0.089 | -0.730 | 0.252 |
변화량 | 0.075 | -0.096 | 0.035 | 0.084 | -0.268 | 0.027 | |
8 mm | 결과 | -0.096 | 0.113 | 0.247 | -0.083 | -0.651 | 0.246 |
변화량 | 0.079 | -0.016 | 0.018 | 0.090 | -0.189 | 0.022 |
Claims (17)
- 제1 하우징;상기 제1 하우징 내에 배치되는 프리즘 유닛; 및상기 프리즘 유닛을 제1 축 또는 제2 축으로 틸팅하는 제1 구동부를 포함하고,상기 제1 구동부는 상기 프리즘 유닛의 제1 외측면과 대응되는 영역에 배치되는 제1 마그넷; 상기 프리즘 유닛의 제1 외측면과 반대되는 제2 외측면과 대응되는 영역에 배치되는 제2 마그넷; 및 상기 프리즘 유닛의 제1 및 제2 외측면 사이에 배치된 제3 외측면과 대응되는 영역에 배치되는 제3 마그넷을 포함하고,상기 제1 및 제2 마그넷은 제1 방향으로 이격하고,상기 제3 마그넷의 상기 제1 방향 길이는, 상기 제1 및 제2 마그넷의 상기 제1 방향 간격의 50% 내지 98%인 카메라 액추에이터.
- 제1 항에 있어서, 상기 제1 내지 제3 마그넷은 상기 제1 방향과 수직인 제2 방향으로 연장하고,상기 제1 및 제2 마그넷의 상기 제2 방향 길이는 동일한 카메라 액추에이터.
- 제2 항에 있어서, 상부에 보았을 때, 상기 제3 마그넷은 상기 제1 및 제2 마그넷과 상기 제1 방향으로 오버랩되고,상기 제1 및 제2 마그넷과 오버랩되는 상기 제3 마그넷의 상기 제2 방향 길이는, 상기 제3 마그넷의 상기 제2 방향 전체 길이의 50% 내지 98%인 카메라 액추에이터.
- 제3 항에 있어서, 상기 제3 마그넷의 상기 제2 방향 길이는 상기 제1 및 제2 마그넷의 상기 제2 방향 길이와 동일한 카메라 액추에이터.
- 제2 항에 있어서, 상기 제3 마그넷의 상기 제1 방향 길이는 상기 제3 마그넷의 상기 제2 방향 길이보다 긴 카메라 액추에이터.
- 제1 항에 있어서, 상기 제1 하우징의 일측면 상에 배치되는 제1 하우징 홀더; 및상기 프리즘 유닛 및 상기 제1 하우징 홀더 사이에 배치되는 무빙 플레이트를 포함하고,상기 무빙 플레이트는 상기 프리즘 유닛과 마주하는 일면 상에 배치되는 복수의 제1 이동부; 및 상기 일면과 반대되며 상기 제1 하우징 홀더와 마주하는 타면 상에 배치되는 복수의 제2 이동부를 포함하는 카메라 액추에이터.
- 제6 항에 있어서, 상기 제1 및 제2 이동부는 일면 및 타면 각각에서 돌출된 형태를 가지는 카메라 액추에이터.
- 제6 항에 있어서, 상기 복수의 제1 이동부는 상기 제1 방향으로 이격되고,상기 복수의 제2 이동부는 상기 제1 방향과 수직인 제3 방향으로 이격되는 카메라 액추에이터.
- 제7 항에 있어서, 상기 프리즘 유닛은 상기 제1 및 제2 외측면 사이에 배치되며 상기 무빙 플레이트와 마주하는 제5 외측면을 포함하고,상기 제5 외측면은 상기 복수의 제1 이동부와 대응되는 영역에 배치되는 복수의 리세스를 포함하는 카메라 액추에이터.
- 제9 항에 있어서, 상기 복수의 제1 이동부는 서로 동일한 형상을 가지고,상기 복수의 리세스는 서로 다른 단면 형상을 가지는 카메라 액추에이터.
- 제8 항에 있어서, 상기 프리즘 유닛은 상기 제1 방향으로 연장하는 가상의 직선을 회전축으로 상기 제3 방향으로 틸트 가능하게 제공되고,상기 제1 이동부는 상기 프리즘 유닛이 상기 제3 방향으로 틸트할 경우 상기 프리즘 유닛을 가이드하는 카메라 액추에이터.
- 제11 항에 있어서, 상기 프리즘 유닛은 상기 제3 방향으로 연장하는 가상의 직선을 회전축으로 상기 제1 방향으로 틸트 가능하게 제공되고,상기 제2 이동부는 상기 프리즘 유닛이 상기 제1 방향으로 틸트할 경우 상기 프리즘 유닛을 가이드하는 카메라 액추에이터.
- 제1 하우징;상기 제1 하우징 내에 배치되는 프리즘 유닛; 및상기 프리즘 유닛을 제1 축 또는 제2 축으로 틸팅하는 제1 구동부를 포함하고,상기 제1 구동부는 상기 프리즘 유닛의 제1 외측면과 대응되는 영역에 배치되는 제1 마그넷; 상기 프리즘 유닛의 제1 외측면과 반대되는 제2 외측면과 대응되는 영역에 배치되는 제2 마그넷; 및 상기 프리즘 유닛의 제1 및 제2 외측면 사이에 배치된 제3 외측면과 대응되는 영역에 배치되는 제3 마그넷을 포함하고,상기 프리즘 유닛은 상기 제1 및 제2 외측면 사이에 배치되며 상기 제3 외측면과 연결되는 제5 외측면을 포함하고,상기 제1 및 제2 마그넷은 제1 방향으로 이격하고,상기 제1 방향을 기준으로 상기 제1 및 제2 마그넷의 중심은 동일 선상에 배치되고,상기 제1 방향과 수직인 제2 방향을 기준으로 상기 제3 마그넷의 중심은 상기 제1 및 제2 마그넷의 중심을 연결한 가상의 직선보다 상기 제5 외측면과 인접하게 배치되는 카메라 액추에이터.
- 제13 항에 있어서, 상기 제2 방향을 기준으로 상기 제3 마그넷의 일끝단은 상기 제1 및 제2 마그넷의 일끝단보다 상기 제5 외측면과 인접하게 배치되는 카메라 액추에이터.
- 제14 항에 있어서, 상기 제3 마그넷의 상기 제1 방향 길이는, 상기 제1 및 제2 마그넷의 상기 제1 방향 간격의 50% 내지 98%인 카메라 액추에이터.
- 제1 카메라 액추에이터; 및제2 카메라 액추에이터를 포함하고,상기 제1 카메라 액추에이터는 OIS(Optical Image Stabilizer) 기능을 제공하고,상기 제2 카메라 액추에이터는 줌(Zoom) 또는 오토 포커스(Auto focusing) 또는 기능을 제공하고,상기 제1 카메라 액추에이터는 제1 항 내지 제15 항 중 어느 한 항에 따른 카메라 액추에이터를 포함하는 카메라 모듈.
- 제16 항에 있어서,외부에서 상기 카메라 모듈에 입사한 광은 상기 제1 카메라 액추에이터를 통해 상기 제2 카메라 액추에이터에 입사되는 카메라 모듈.
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202180091630.2A CN116803091A (zh) | 2020-12-22 | 2021-12-22 | 相机致动器和包括该相机致动器的相机模块 |
JP2023538098A JP2024500897A (ja) | 2020-12-22 | 2021-12-22 | カメラアクチュエータ及びこれを含むカメラモジュール |
EP21911542.5A EP4270924A1 (en) | 2020-12-22 | 2021-12-22 | Camera actuator and camera module comprising same |
US18/268,356 US20230384649A1 (en) | 2020-12-22 | 2021-12-22 | Camera actuator and camera module comprising same |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020200180860A KR20220090055A (ko) | 2020-12-22 | 2020-12-22 | 카메라 액추에이터 및 이를 포함하는 카메라 모듈 |
KR10-2020-0180860 | 2020-12-22 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2022139476A1 true WO2022139476A1 (ko) | 2022-06-30 |
Family
ID=82158513
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/KR2021/019641 WO2022139476A1 (ko) | 2020-12-22 | 2021-12-22 | 카메라 액추에이터 및 이를 포함하는 카메라 모듈 |
Country Status (6)
Country | Link |
---|---|
US (1) | US20230384649A1 (ko) |
EP (1) | EP4270924A1 (ko) |
JP (1) | JP2024500897A (ko) |
KR (1) | KR20220090055A (ko) |
CN (1) | CN116803091A (ko) |
WO (1) | WO2022139476A1 (ko) |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20180120894A (ko) * | 2017-04-28 | 2018-11-07 | 자화전자(주) | 다축 구조의 반사계 구동장치 |
KR20190108375A (ko) * | 2018-03-14 | 2019-09-24 | 엘지전자 주식회사 | 이미지 획득 장치 |
KR20200039378A (ko) * | 2018-10-05 | 2020-04-16 | 엘지이노텍 주식회사 | 카메라 액추에이터 및 이를 포함하는 카메라 모듈 |
KR20200132562A (ko) * | 2019-05-17 | 2020-11-25 | 삼성전기주식회사 | 반사모듈 및 이를 포함하는 카메라 모듈 |
CN112104799A (zh) * | 2019-06-18 | 2020-12-18 | 三星电机株式会社 | 用于光学图像稳定的反射模块和包括其的相机模块 |
-
2020
- 2020-12-22 KR KR1020200180860A patent/KR20220090055A/ko active Search and Examination
-
2021
- 2021-12-22 JP JP2023538098A patent/JP2024500897A/ja active Pending
- 2021-12-22 CN CN202180091630.2A patent/CN116803091A/zh active Pending
- 2021-12-22 WO PCT/KR2021/019641 patent/WO2022139476A1/ko active Application Filing
- 2021-12-22 US US18/268,356 patent/US20230384649A1/en active Pending
- 2021-12-22 EP EP21911542.5A patent/EP4270924A1/en active Pending
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20180120894A (ko) * | 2017-04-28 | 2018-11-07 | 자화전자(주) | 다축 구조의 반사계 구동장치 |
KR20190108375A (ko) * | 2018-03-14 | 2019-09-24 | 엘지전자 주식회사 | 이미지 획득 장치 |
KR20200039378A (ko) * | 2018-10-05 | 2020-04-16 | 엘지이노텍 주식회사 | 카메라 액추에이터 및 이를 포함하는 카메라 모듈 |
KR20200132562A (ko) * | 2019-05-17 | 2020-11-25 | 삼성전기주식회사 | 반사모듈 및 이를 포함하는 카메라 모듈 |
CN112104799A (zh) * | 2019-06-18 | 2020-12-18 | 三星电机株式会社 | 用于光学图像稳定的反射模块和包括其的相机模块 |
Also Published As
Publication number | Publication date |
---|---|
US20230384649A1 (en) | 2023-11-30 |
EP4270924A1 (en) | 2023-11-01 |
CN116803091A (zh) | 2023-09-22 |
JP2024500897A (ja) | 2024-01-10 |
KR20220090055A (ko) | 2022-06-29 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
WO2014142622A1 (ko) | 렌즈 액츄에이터 | |
WO2014092271A1 (en) | Optical adjusting apparatus | |
WO2019031817A1 (ko) | 렌즈 구동 장치, 카메라 모듈 및 광학 기기 | |
WO2015130051A1 (ko) | 렌즈구동모터 | |
WO2015046761A1 (ko) | 자동 초점 조절 및 손떨림 보정 기능을 갖는 휴대단말기용 카메라 액추에이터 | |
WO2014003492A1 (en) | Camera module | |
WO2019164296A1 (ko) | 카메라 모듈 | |
WO2019151700A1 (ko) | 카메라 모듈 | |
WO2020122594A1 (ko) | 렌즈 어셈블리 및 이를 포함하는 카메라 모듈 | |
WO2016137083A1 (ko) | 손 떨림 보정 장치 | |
WO2019143116A1 (ko) | 렌즈 어셈블리 및 그를 포함하는 카메라 모듈 | |
WO2020013465A1 (ko) | 자동 초점 조절장치 | |
KR20210013978A (ko) | 카메라 모듈 및 이를 포함하는 카메라 장치 | |
WO2020251203A1 (ko) | 렌즈 어셈블리 구동 장치 및 이를 포함하는 카메라 모듈 | |
WO2021225230A1 (ko) | 렌즈 조립체 | |
WO2022139476A1 (ko) | 카메라 액추에이터 및 이를 포함하는 카메라 모듈 | |
WO2022085920A1 (ko) | 카메라 장치 | |
WO2022092557A1 (ko) | 카메라 액추에이터 및 이를 포함하는 카메라 모듈 | |
US20230185052A1 (en) | Camera actuator and camera device including same | |
WO2021235835A1 (ko) | 카메라 모듈 및 광학기기 | |
KR20220162522A (ko) | 카메라 액추에이터 및 이를 포함하는 카메라 모듈 | |
KR20220162547A (ko) | 렌즈 배럴 및 이를 포함하는 카메라 모듈 | |
WO2022005151A1 (ko) | 카메라 모듈 | |
WO2022158902A1 (ko) | 카메라 액추에이터 및 이를 포함하는 카메라 모듈 | |
WO2024049021A1 (ko) | 렌즈 구동 장치, 카메라 모듈 및 광학기기 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 21911542 Country of ref document: EP Kind code of ref document: A1 |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2023538098 Country of ref document: JP |
|
WWE | Wipo information: entry into national phase |
Ref document number: 202180091630.2 Country of ref document: CN |
|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
ENP | Entry into the national phase |
Ref document number: 2021911542 Country of ref document: EP Effective date: 20230724 |