WO2018135423A1 - レンズ駆動装置、カメラモジュール、及びカメラ搭載装置 - Google Patents
レンズ駆動装置、カメラモジュール、及びカメラ搭載装置 Download PDFInfo
- Publication number
- WO2018135423A1 WO2018135423A1 PCT/JP2018/000772 JP2018000772W WO2018135423A1 WO 2018135423 A1 WO2018135423 A1 WO 2018135423A1 JP 2018000772 W JP2018000772 W JP 2018000772W WO 2018135423 A1 WO2018135423 A1 WO 2018135423A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- unit
- autofocus
- shake correction
- ois
- magnet
- Prior art date
Links
- 230000003287 optical effect Effects 0.000 claims abstract description 86
- 238000012937 correction Methods 0.000 claims description 77
- 238000001514 detection method Methods 0.000 claims description 28
- 239000000463 material Substances 0.000 claims description 27
- 229920001971 elastomer Polymers 0.000 claims description 26
- 239000000806 elastomer Substances 0.000 claims description 25
- 238000003384 imaging method Methods 0.000 claims description 20
- 238000005452 bending Methods 0.000 claims description 15
- 239000011347 resin Substances 0.000 claims description 5
- 229920005989 resin Polymers 0.000 claims description 5
- 239000007769 metal material Substances 0.000 claims description 3
- 230000008859 change Effects 0.000 claims description 2
- 238000011105 stabilization Methods 0.000 abstract 4
- 238000010586 diagram Methods 0.000 description 10
- 239000000725 suspension Substances 0.000 description 9
- 230000009977 dual effect Effects 0.000 description 7
- 230000035945 sensitivity Effects 0.000 description 7
- 238000000034 method Methods 0.000 description 5
- 229920000106 Liquid crystal polymer Polymers 0.000 description 4
- 239000004977 Liquid-crystal polymers (LCPs) Substances 0.000 description 4
- 230000004907 flux Effects 0.000 description 4
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 238000000465 moulding Methods 0.000 description 3
- 238000004804 winding Methods 0.000 description 3
- 230000005355 Hall effect Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 230000003993 interaction Effects 0.000 description 2
- 229920000728 polyester Polymers 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 229920002725 thermoplastic elastomer Polymers 0.000 description 2
- 230000001154 acute effect Effects 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 238000013519 translation Methods 0.000 description 1
- 239000013585 weight reducing agent Substances 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/64—Imaging systems using optical elements for stabilisation of the lateral and angular position of the image
- G02B27/646—Imaging systems using optical elements for stabilisation of the lateral and angular position of the image compensating for small deviations, e.g. due to vibration or shake
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B13/00—Optical objectives specially designed for the purposes specified below
- G02B13/001—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/64—Imaging systems using optical elements for stabilisation of the lateral and angular position of the image
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
- G02B7/02—Mountings, adjusting means, or light-tight connections, for optical elements for lenses
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
- G02B7/02—Mountings, adjusting means, or light-tight connections, for optical elements for lenses
- G02B7/04—Mountings, adjusting means, or light-tight connections, for optical elements for lenses with mechanism for focusing or varying magnification
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
- G02B7/02—Mountings, adjusting means, or light-tight connections, for optical elements for lenses
- G02B7/04—Mountings, adjusting means, or light-tight connections, for optical elements for lenses with mechanism for focusing or varying magnification
- G02B7/06—Focusing binocular pairs
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
- G02B7/02—Mountings, adjusting means, or light-tight connections, for optical elements for lenses
- G02B7/04—Mountings, adjusting means, or light-tight connections, for optical elements for lenses with mechanism for focusing or varying magnification
- G02B7/08—Mountings, adjusting means, or light-tight connections, for optical elements for lenses with mechanism for focusing or varying magnification adapted to co-operate with a remote control mechanism
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
- G02B7/02—Mountings, adjusting means, or light-tight connections, for optical elements for lenses
- G02B7/04—Mountings, adjusting means, or light-tight connections, for optical elements for lenses with mechanism for focusing or varying magnification
- G02B7/09—Mountings, adjusting means, or light-tight connections, for optical elements for lenses with mechanism for focusing or varying magnification adapted for automatic focusing or varying magnification
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B3/00—Focusing arrangements of general interest for cameras, projectors or printers
- G03B3/10—Power-operated focusing
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B5/00—Adjustment of optical system relative to image or object surface other than for focusing
- G03B5/06—Swinging lens about normal to the optical axis
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control 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
- H04N23/50—Constructional details
- H04N23/55—Optical parts specially adapted for electronic image sensors; Mounting thereof
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/60—Control of cameras or camera modules
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/60—Control of cameras or camera modules
- H04N23/68—Control of cameras or camera modules for stable pick-up of the scene, e.g. compensating for camera body vibrations
- H04N23/682—Vibration or motion blur correction
- H04N23/685—Vibration or motion blur correction performed by mechanical compensation
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/60—Control of cameras or camera modules
- H04N23/68—Control of cameras or camera modules for stable pick-up of the scene, e.g. compensating for camera body vibrations
- H04N23/682—Vibration or motion blur correction
- H04N23/685—Vibration or motion blur correction performed by mechanical compensation
- H04N23/687—Vibration or motion blur correction performed by mechanical compensation by shifting the lens or sensor position
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/90—Arrangement of cameras or camera modules, e.g. multiple cameras in TV studios or sports stadiums
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R11/00—Arrangements for holding or mounting articles, not otherwise provided for
- B60R11/04—Mounting of cameras operative during drive; Arrangement of controls thereof relative to the vehicle
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B2205/00—Adjustment of optical system relative to image or object surface other than for focusing
- G03B2205/0007—Movement of one or more optical elements for control of motion blur
- G03B2205/0015—Movement of one or more optical elements for control of motion blur by displacing one or more optical elements normal to the optical axis
Definitions
- the present invention relates to a lens driving device for shake correction, a camera module having a shake correction function, and a camera mounting device.
- a small camera module is mounted on a mobile terminal such as a smartphone.
- an autofocus function (AF: Auto Focus) that automatically performs focusing when shooting a subject and vibration (vibration) that occurs during shooting are optically detected.
- a lens driving device having a shake correction function (hereinafter referred to as “OIS function”, hereinafter referred to as “OIS function”) that corrects and reduces image distortion is applied (for example, Patent Document 1).
- a lens driving device having an autofocus function and a shake correction function includes an autofocus drive unit (hereinafter referred to as “AF drive unit”) for moving the lens unit in the optical axis direction, and the lens unit in the optical axis direction.
- AF drive unit autofocus drive unit
- OIS drive unit shake correction drive unit
- the AF drive unit includes, for example, an autofocus coil unit (hereinafter referred to as “AF coil unit”) disposed around the lens unit, and an auto unit disposed in a radial direction away from the AF coil unit.
- a focusing magnet portion hereinafter referred to as “AF magnet portion”
- an autofocus fixing portion including an AF magnet portion hereinafter referred to as “AF fixing portion”
- AF fixing portion include a lens portion and an AF coil portion.
- an elastic support portion for example, a leaf spring that elastically supports an autofocus movable portion (hereinafter referred to as “AF movable portion”).
- the AF movable unit is moved in the optical axis direction with respect to the AF fixed unit to automatically focus. Done.
- the AF fixed portion includes an AF coil portion
- the AF movable portion includes an AF magnet portion.
- the OIS drive unit includes, for example, a shake correction magnet unit (hereinafter referred to as “OIS magnet unit”) disposed in the AF drive unit, and a shake correction coil disposed separately from the OIS magnet unit.
- Shake correction including an AF drive section and an OIS magnet section with respect to a vibration correction fixing section (hereinafter referred to as an "OIS fixing section") including an OIS coil section (hereinafter referred to as an "OIS coil section”) and an OIS coil section.
- a support portion that supports a movable portion hereinafter referred to as “OIS movable portion”.
- the OIS movable part is swung in a plane perpendicular to the optical axis direction with respect to the OIS fixed part, Shake correction is performed (so-called barrel shift method).
- the OIS magnet section can also be used as the AF magnet section.
- the lens driving device can be reduced in size and height.
- a suspension wire is applied as the support portion that supports the OIS movable portion with respect to the OIS fixed portion.
- dual cameras have various possibilities depending on the usage scene, such as being able to simultaneously capture two images with different focal lengths, or simultaneously capture still images and moving images.
- the size is larger than that of a single camera. Therefore, it is necessary to further reduce the size of the lens driving device for commercialization.
- An object of the present invention is to provide a lens driving device suitable for a dual camera application, a camera module including the lens driving device, and a camera mounting device.
- the lens driving device is a lens driving device having a rectangular shape in plan view, For a shake correction magnet unit disposed around the lens unit, a shake correction coil unit spaced apart from the shake correction magnet unit, and a shake correction fixing unit including the shake correction coil unit
- a shake correction support portion that supports the shake correction movable portion including the shake correction magnet portion in a state of being separated in the optical axis direction, and includes the shake correction coil portion and the shake correction magnet portion.
- a shake correction drive that performs shake correction by swinging the shake correction movable part in a plane orthogonal to the optical axis direction with respect to the shake correction fixed part using the drive force of the shake correction voice coil motor.
- the shake correction movable unit includes an autofocus coil unit disposed around the lens unit, an autofocus magnet unit disposed radially away from the autofocus coil unit, and the autofocus unit.
- An autofocus support section for supporting an autofocus movable section including the autofocus coil section with respect to an autofocus fixed section including the focus magnet section, and the autofocus coil section and the autofocus magnet.
- Auto focusing is performed by moving the autofocus movable part in the optical axis direction with respect to the autofocus fixed part using the driving force of the voice coil motor for autofocus composed of Including a focus drive,
- the set of the shake correction coil portion and the shake correction magnet portion is disposed along the adjacent first side and second side,
- the autofocus movable part is arranged in an eccentric state with respect to the central axis along the optical axis direction,
- the lens driving device according to claim 1, wherein the shake correction fixing unit includes a connection terminal portion disposed on the first side and the second side and connected to a power supply wiring of the shake correction coil unit.
- the camera module includes: A first lens driving device and a second lens driving device comprising the above lens driving device; The lens unit corresponding to each of the first lens driving device and the second lens driving device; An imaging unit that captures a subject image formed by the lens unit, The first lens driving device and the second lens driving device are juxtaposed in a positional relationship rotated by 90 ° in a plane perpendicular to the optical axis so that the connection terminal portion is not located between the first lens driving device and the second lens driving device. It is characterized by.
- the camera mounting device is a camera mounting device that is an information device or a transport device, The camera module is provided.
- a lens driving device suitable for a dual camera application a camera module including the lens driving device, and a camera mounting device are provided.
- FIG. 1A and 1B are diagrams showing a smartphone equipped with a camera module according to an embodiment of the present invention.
- FIG. 2 is an external perspective view of the rear camera.
- 3A is a plan view of the rear camera as viewed from the optical axis direction light receiving side
- FIG. 3B is a bottom view of the rear camera as viewed from the optical axis direction imaging side.
- FIG. 4 is an exploded perspective view of the camera module.
- 5A is a plan view of the lens driving device
- FIG. 5B is a front view of the lens driving device
- FIG. 5C is a rear view of the lens driving device
- FIG. 5D is a left side view of the lens driving device
- FIG. It is a right view of a drive device.
- FIG. 5A is a plan view of the lens driving device
- FIG. 5B is a front view of the lens driving device
- FIG. 5C is a rear view of the lens driving device
- FIG. 5D is a left side view of
- FIG. 6 is an exploded perspective view of the lens driving device.
- FIG. 7 is an exploded perspective view of the OIS movable portion.
- 8A is a plan view showing an attachment state of the AF support portion and the AF movable portion
- FIG. 8B is a front view showing an attachment state of the AF support portion and the AF movable portion
- FIG. 8C is an AF support portion and AF.
- FIG. 8D is a left side view showing the attachment state of the AF support part and the AF movable part
- FIG. 8E is a right side view showing the attachment state of the AF support part and the AF movable part.
- FIG. 9A and 9B are perspective views showing the attachment state of the AF support portion and the AF movable portion.
- FIG. 9A and 9B are perspective views showing the attachment state of the AF support portion and the AF movable portion.
- FIG. 10A and FIG. 10B are diagrams showing a bending aspect of the OIS support (first side support).
- FIG. 11A and FIG. 11B are diagrams showing a bending mode of the OIS support (second side support).
- 12A and 12B are diagrams showing a bending mode of the AF support portion (arm).
- FIG. 13 is a diagram illustrating the arrangement of the magnet unit and the connection terminal unit in the rear camera.
- FIG. 14 is a diagram showing a modification of the coil portion for OIS.
- 15A and 15B are diagrams illustrating the relationship between the magnetic flux generated by the coil portion for OIS according to the modification and the XY position detection unit.
- FIG. 16A and FIG. 16B are diagrams showing an automobile as a camera mounting device on which an in-vehicle camera module is mounted.
- FIGS. 1A and 1B are diagrams showing a smartphone M (camera mounting device) on which camera modules CM1 and CM2 according to an embodiment of the present invention are mounted.
- 1A is a front view of the smartphone M
- FIG. 1B is a rear view of the smartphone M.
- the smartphone M has a dual camera in which two camera modules CM1 and CM2 are arranged in parallel as a rear camera OC.
- Each of the camera modules CM1 and CM2 has an autofocus function and a shake correction function, and automatically performs focusing when shooting a subject, and corrects shake (vibration) generated at the time of shooting to produce an image without image blur. Take a picture.
- FIG. 2 is an external perspective view of the rear camera OC.
- FIG. 3A is a plan view of the rear camera OC as seen from the light receiving side in the optical axis direction.
- FIG. 3B is a bottom view of the rear camera OC viewed from the optical axis direction imaging side.
- FIG. 2 FIG. 3A and FIG. 3B, the present embodiment will be described using an orthogonal coordinate system (X, Y, Z).
- a common orthogonal coordinate system (X, Y, Z) is also used.
- the rear camera OC is mounted so that the X direction is the up-down direction (or left-right direction), the Y direction is the left-right direction (or up-down direction), and the Z direction is the front-rear direction when shooting is actually performed with the smartphone M.
- the X direction and the Y direction orthogonal to the optical axis direction are referred to as “optical axis orthogonal directions”.
- the camera modules CM1 and CM2 have the same structure.
- the camera modules CM1 and CM2 are arranged in a positional relationship rotated 90 ° in a plane orthogonal to the optical axis direction.
- reference points black dots are added to the optical axis direction light receiving side surface and the optical axis direction imaging side surface for convenience of explaining the positional relationship between the camera modules CM1 and CM2.
- FIG. 4 is an exploded perspective view of the camera modules CM1 and CM2.
- Each of the camera modules CM1 and CM2 captures a subject image formed by the lens unit 2 in which the lens is housed in a cylindrical lens barrel, the lens driving device 1 for AF and OIS, and the lens unit 2.
- An imaging unit (not shown) for imaging and a cover 3 covering the whole are provided.
- the “first lens driving device 1A”, the “first lens unit 2A”, and the “second lens driving device 1B” are used.
- second lens portion 2B is used when distinguishing the lens driving device 1A”, the “first lens unit 2A”, and the “second lens driving device 1B”.
- the cover 3 is a covered rectangular cylinder having a rectangular shape (here, a square shape) in a plan view as viewed from the optical axis direction, and has a circular opening 3a on the upper surface.
- the opening 3a is a central axis of the cover 3 (an axis parallel to the optical axis direction passing through the intersection of diagonal lines in the plan view of the cover 3), that is, a central axis of the camera modules CM1 and CM2 (a diagonal line in the plan view of the camera modules CM1 and CM2). And an axis that is parallel to the direction of the optical axis passing through the intersection).
- the lens portion 2 faces the outside through the opening 3a.
- the cover 3 is fixed to the base 23 of the OIS fixing portion 20 (see FIGS. 5A to 5E) of the lens driving device 1.
- the cover 3 may be made of a conductive material and grounded via the OIS fixing portion 20.
- the imaging unit has an imaging device (not shown) and is arranged on the optical axis direction imaging side of the lens driving device 1, that is, on the optical axis direction imaging side of the OIS fixing unit 20.
- the image sensor (not shown) is configured by, for example, a charge-coupled device (CCD) type image sensor, a complementary metal oxide semiconductor (CMOS) type image sensor, or the like.
- CCD charge-coupled device
- CMOS complementary metal oxide semiconductor
- FIGS. 5A to 5E are diagrams showing the lens driving device 1.
- FIG. 5A is a plan view
- FIG. 5B is a front view
- FIG. 5C is a rear view
- FIG. 5D is a left side view
- FIG. 5E is a right side view.
- FIGS. 5A to 5E only the coordinate axes are shown in FIG. 5A.
- FIG. 6 is an exploded perspective view of the lens driving device 1.
- the lens driving device 1 includes an OIS movable portion 10, an OIS fixing portion 20, an OIS support portion 30 and the like, and has a rectangular shape (here, a square shape) in plan view.
- a rectangular shape here, a square shape
- An axis parallel to the optical axis direction passing through the intersection of diagonal lines in plan view of the lens driving device 1 is referred to as a “center axis of the lens driving device 1”.
- the center axis of the cover 3, the center axis of the camera modules CM1 and CM2, the center axis of the magnet holder 121 described later, and the center axis of the base 22 coincide with the center axis of the lens driving device 1.
- the OIS movable part 10 has an OIS magnet part that constitutes a voice coil motor for OIS, and is a part that oscillates in a plane orthogonal to the optical axis perpendicular to the optical axis during shake correction.
- the OIS fixed portion 20 is a portion that has an OIS coil portion that constitutes an OIS voice coil motor and supports the OIS movable portion 10 via an OIS support portion 30. That is, the moving magnet method is adopted for the OIS drive unit in the lens drive device 1.
- the OIS movable unit 10 includes an AF driving unit.
- the OIS movable unit 10 is arranged away from the OIS fixed unit 20 so as to be movable in a plane orthogonal to the optical axis direction.
- the OIS movable unit 10 is disposed away from the OIS fixed unit 20 on the light receiving side in the optical axis direction.
- the OIS support section 30 connects the OIS fixed section 20 and the OIS movable section 10 together.
- a link member utilizing the elasticity of elastomer is employed as the OIS support 30 instead of the conventional suspension wire (hereinafter referred to as “OIS link member 30”).
- the elastomer is a rubber-like elastic body, and includes a thermosetting elastomer (rubber) and a thermoplastic elastomer (plastic having elasticity).
- the OIS link member 30 includes an upper frame 33, a first side support 31, and a second side support 32.
- first side support 31 and second side support 32 are exemplary side support bodies 31 and 32.
- the upper frame 33 is a rectangular (here, square) frame in plan view, and is disposed opposite the base 22 of the OIS fixing unit 20 in the optical axis direction.
- the upper frame 33 is made of a highly rigid material.
- a metal material or a resin material can be applied to the upper frame 33, but a resin material is preferable from the viewpoint of weight reduction.
- the upper frame 33 is preferably a liquid crystal polymer (LCP resin).
- the side support bodies 31 and 32 are formed of an elastomer material. As a result, the risk of the side support bodies 31 and 32 being damaged due to an impact such as dropping is extremely low as compared with the case where the suspension wire is applied as the OIS support section. Therefore, high reliability can be ensured and the sensitivity of the OIS drive unit of the lens drive device 1 (hereinafter referred to as “OIS sensitivity”) can be increased. In addition, since the primary resonance of the drive unit for OIS can be suppressed by using the damping force of the elastomer, the step of applying the damper material, which was performed when the suspension wire was applied, is not necessary, and the assembly work is facilitated. As a result, productivity is improved.
- thermoplastic elastomer for example, a polyester-based elastomer
- polyester-based elastomer that can be designed with a small spring constant and can be injection-molded
- Polyester elastomers are excellent in heat resistance and low temperature characteristics, and have relatively stable flexibility even when the temperature changes.
- the side support members 31 and 32 are columnar members having strength capable of supporting the OIS movable unit 10. Two first side support members 31 or two second side support members 32 are arranged on each of the four sides of the upper frame 33.
- the side supports 31 and 32 may be plate-like members that cover the side surfaces of the OIS movable part.
- the side support members 31 and 32 have a biaxial hinge structure that allows the OIS movable unit 10 to translate in the plane orthogonal to the optical axis by bending about two axes.
- the first side support 31 is formed thinner than the surroundings and has two Y hinge portions 31a and 31b with the Y direction as an axis.
- the Y hinge portions 31 a and 31 b are configured by hinge grooves formed on the outer surface of the first side support 31.
- the second side support 32 has the same shape as the first side support 31. That is, the 2nd side part support body 32 is formed thinner than the circumference
- the X hinge portions 32 a and 32 b are configured by hinge grooves formed on the outer surface of the second side support body 32.
- the shape of the hinge groove in the first side support 31 and the second side support 32 is not particularly limited, but preferably has an R shape. Thereby, durability with respect to the bending operation repeatedly performed during shake correction is improved.
- the first side support 31 is suspended from the respective ends of the two sides along the Y direction of the upper frame 33.
- One end of the first side support 31 is fixed to the upper frame 33, and the other end is fixed to the OIS movable unit 10 (here, the magnet holder 121).
- the second side support body 32 is suspended from the respective ends of the two sides along the X direction of the upper frame 33.
- One end of the second side support 32 is fixed to the upper frame 33, and the other end is fixed to the OIS fixing 20 (here, the base 22).
- the upper frame 33 of the OIS link member 30 is installed on the light receiving side in the optical axis direction of the OIS fixing unit 20 by the second side support 32.
- the OIS movable unit 10 is suspended from the upper frame 33 by the first side support 31.
- the OIS movable unit 10 moves in the Y direction, only the second side support 32 is elastically deformed, and the first side support 31 is not elastically deformed.
- the OIS movable unit 10 moves in the X direction, only the first side support 31 is elastically deformed, and the second side support 32 is not elastically deformed. That is, the OIS movable unit 10 can move independently in the X direction and the Y direction.
- the OIS support portion 30 is opposed to the upper frame 33 disposed to face the OIS fixing portion 20 in the optical axis direction and to the X direction (first direction orthogonal to the optical axis direction).
- 1st side support body 31 which is arrange
- the first side support 31 has two Y hinge portions 31a and 31b that are formed thinner than the surroundings and have the Y direction as an axis.
- the Y hinge portions 31a and 31b are bent so that the bending directions are opposite to each other (see FIGS. 10A and 10B).
- the second side support body 32 has two X hinge portions 32a and 32b that are formed thinner than the surroundings and have the X direction as an axis.
- the X hinge portions 32a and 32b are bent so that the bending directions are opposite to each other (see FIGS. 11A and 11B).
- the suspension wire When the OIS support is made of a suspension wire as in the prior art, the suspension wire preferably has a smaller wire diameter in order to improve the OIS sensitivity.
- the wire diameter of the suspension wire is reduced, the risk of breakage when receiving an impact such as dropping increases.
- the suspension wire is easily bent and the OIS movable portion cannot be translated (the lens portion is tilted), the tilt characteristic at the time of shake correction is deteriorated.
- the tilt characteristic is an index indicating the parallelism of the OIS movable unit at the time of shake correction, and is represented by the tilt angle of the lens unit accompanying the movement of the OIS movable unit.
- the parallelism of the OIS movable portion 10 is ensured by adopting a mechanical hinge structure using the elasticity of the elastomer as the OIS support portion 30, the tilt characteristic is improved. improves. Further, the risk of damaging the OIS support portion 30 due to an impact such as a drop is extremely low, and the influence of resonance on the AF movable portion 11 can be significantly reduced. Furthermore, since the OIS movable part 10 can be moved with a small force, power saving can be achieved.
- FIG. 7 is an exploded perspective view of the OIS movable unit 10.
- 8A to 8E are views showing the attachment state of the AF support portion 13 and the AF movable portion 11.
- 8A is a plan view
- FIG. 8B is a front view
- FIG. 8C is a rear view
- FIG. 8D is a left side view
- FIG. 8E is a right side view.
- FIGS. 8A to 8E only the coordinate axes are shown in FIG. 8A.
- 9A and 9B are perspective views showing the attachment state of the AF support portion 13 and the AF movable portion 11.
- the OIS movable unit 10 includes an AF movable unit 11, an AF fixed unit 12, an AF support unit 13, and the like.
- the AF movable part 11 is arranged to be spaced radially inward with respect to the AF fixing part 12 and is connected to the AF fixing part 12 by an AF support part 13.
- the AF movable portion 11 has an AF coil portion 112 that constitutes an AF voice coil motor, and is a portion that moves in the optical axis direction during focusing.
- the AF fixing portion 12 has an AF magnet portion 122A that constitutes an AF voice coil motor, and is a portion that supports the AF movable portion 11 via the AF support portion 13.
- the moving coil method is employed for the AF driving unit of the lens driving device 1.
- the AF movable unit 11 includes a lens holder 111, an AF coil unit 112, an AF position detection unit 113, and an FPC 114 (FPC: Flexible printed circuit).
- FPC Flexible printed circuit
- the lens holder 111 has a cylindrical lens housing portion 111a to which the lens portion 2 is fixed by bonding or screwing.
- the lens holder 111 has a coil mounting portion 111b on which the AF coil portion 112 is disposed on the side surface along the X direction.
- the lens holder 111 has link attachment portions 111c on two side surfaces along the Y direction.
- the AF coil portion 112 is an air-core coil that is energized during focusing, and is wound around the coil mounting portion 111 b of the lens holder 111. Both ends of the winding of the AF coil unit 112 are connected to the FPC 114.
- the AF coil portion 112 has an oval shape, and is arranged so that the XZ plane is the coil plane here, so that the coil plane is parallel to the optical axis.
- the AF coil section 112 faces the magnet section 122 (first magnet 122A).
- the FPC 114 is a flexible printed board on which the AF position detection unit 113 is mounted.
- the FPC 114 is arranged on the optical axis direction imaging side of the lens holder 111, and rises from the plane portion 114a, bends in a U shape, and is arranged adjacent to the coil mounting portion 111b of the lens holder 111.
- a sensor mounting portion 114b is provided.
- the flat surface portion 114 a of the FPC 114 extends outward from the lens holder 111 and is disposed on the FPC attachment portion 22 b of the base 11.
- a first OIS coil 21 ⁇ / b> A that constitutes the OIS coil portion 21 is disposed on the plane portion 114 a.
- the FPC 114 includes a power line (not shown) for supplying power to the AF coil unit 112, the AF position detection unit 113, and the first OIS coil 21A, and a detection signal signal output from the AF position detection unit 113.
- a line (not shown) and the like.
- the end of the flat surface portion 114a is bent toward the optical axis direction imaging side, and a connection terminal 114c (here, 8 pins) is provided at this portion.
- the AF position detection unit 113 is, for example, a Hall element that detects a magnetic field using the Hall effect (hereinafter referred to as “AF Hall element 113”).
- the AF hall element 113 mainly detects a magnetic field formed by the first magnet 122A. Based on the detection result of the AF hall element 113, the position of the AF movable portion 11 in the optical axis direction can be specified.
- the AF hall element 113 is used when focusing is performed by closed loop control.
- the AF hall element 113 is mounted on the sensor mounting portion 114 b of the FPC 114.
- the AF movable unit 11 is arranged on a plane (XZ plane in the drawing) intersecting with the extending direction of the arm 412 and detects the position of the AF movable unit 11 in the optical axis direction based on the change of the magnetic field. It has an AF hall element 113 (an AF position detector). In addition to the first magnet 122A, a position detection magnet may be arranged in the AF fixing unit 12.
- the AF movable portion 11 is supported by the AF support portion 13 attached to the AF fixing portion 12 in a cantilevered state.
- vibration (resonance) is likely to occur in a direction intersecting the extending direction of the arm 412 of the AF support portion 13. Therefore, if the AF hall element 113 is disposed on a surface along the extending direction of the arm 412 (YZ plane in the figure), the AF hall element 113 is easily affected by a displacement due to resonance, and the detection accuracy of the AF hall element 113 may be reduced. is there.
- the AF hall element 113 is disposed on the surface intersecting the extending direction of the arm 412, the AF hall element 113 is not easily affected by the displacement due to resonance.
- the position of the AF movable part 11 can be detected with high detection accuracy.
- the AF fixing unit 12 includes a magnet holder 121 and a magnet unit 122.
- the magnet unit 122 includes a first magnet 122A and a second magnet 122B.
- the first magnet 122A and the second magnet 122B are rectangular parallelepiped permanent magnets (reference numerals omitted) having four poles on both sides. That is, in the first magnet 122A and the second magnet 122B, the N pole and the S pole appear equally on all six surfaces.
- the first magnet 122A is arranged along the X direction so as to face the AF coil section 112.
- the second magnet 122B is disposed along the Y direction.
- the size and position of the AF coil portion 112 and the first magnet 122A are set so that the magnetic fields crossing the two long side portions in the AF coil portion 112 in the Y direction are opposite to each other.
- Lorentz forces in the same direction in the Z direction are generated in the two long side portions of the AF coil unit 122.
- the first magnet 122A (AF magnet part) has a rectangular parallelepiped shape with double poles on both sides, and is arranged along the X direction (first direction orthogonal to the optical axis direction).
- the AF coil portion 112 has an oval shape, and the coil surface is opposed to the first magnet 122A, and the two long side portions are arranged so that the magnetic flux from the first magnet 122A crosses in the opposite direction. Is done.
- the first magnet 122A and the AF coil unit 112 constitute an AF voice coil motor.
- the first magnet 122A, the second magnet 122B, and the OIS coil section 21 constitute an OIS voice coil motor. That is, the first magnet 122A serves as both an AF magnet part and an OIS magnet part.
- the first magnet 122A and the second magnet 122B are used for detecting the position of the OIS movable unit 10 in the plane orthogonal to the optical axis.
- the first magnet 122A is used for detecting the position of the AF movable unit 11 in the optical axis direction.
- a position detection magnet may be arranged in the AF fixing unit 12 (OIS movable unit 10).
- the magnet holder 121 is a square cylinder that has a space that can accommodate the AF movable part 11 and has a substantially square shape in plan view.
- the magnet holder 121 has a magnet housing part 121a on one side wall along the X direction and a magnet housing part 121b on one side wall along the Y direction.
- the first magnet 122A is disposed in the magnet housing part 121a
- the second magnet 122B is disposed in the magnet housing part 121b.
- the AF movable unit 11 is configured so that the center axis of the magnet holder 121 (plan view of the magnet holder 121). Are arranged in an eccentric state with respect to an axis parallel to the optical axis direction passing through the intersection of diagonal lines. That is, the optical axis of the lens unit 2 disposed in the AF movable unit 11 does not coincide with the central axis of the lens driving device 1.
- the magnet holder 121 has an AF link fixing part 121c on the other side wall along the X direction.
- the magnet holder fixing portion 411 of the AF support portion 13 is fixed to the AF link fixing portion 121c.
- the magnet holder 121 has an OIS link fixing portion 121d at each end portion (total of four locations) along the Y direction.
- the first side support 31 of the OIS link member 30 is fixed to each OIS link fixing portion 121d.
- the AF support unit 13 supports the AF movable unit 11 with respect to the AF fixing unit 12.
- a link member using the elasticity of an elastomer is employed as the AF support portion 13 instead of a conventional leaf spring, similarly to the OIS link member 30 (hereinafter referred to as “AF link member 13”). ").
- the AF link member 13 is attached to the AF fixing portion 12 (magnet holder 121) in a cantilever state.
- the AF link member 13 includes a support portion main body 41 and a stiffening portion 42.
- the support portion main body 41 includes a magnet holder fixing portion 411, an arm 412, and a lens holder fixing portion 413.
- the magnet holder fixing part 411 has a shape corresponding to the AF link fixing part 121c of the magnet holder 121.
- the magnet holder fixing part 411 has a boss accommodating part 411a into which the restriction boss 111d of the lens holder 111 is inserted.
- the lens holder fixing part 413 has a notch part 413 a corresponding to the link attachment part 111 c of the lens holder 111.
- the arm 412 is made of an elastomer material.
- the arm 412 has a curved shape along the peripheral surface of the lens holder housing portion 111a.
- the two arms 412 each have an upper arm 412A and a lower arm 412B that are provided apart from each other in the optical axis direction.
- the base ends of the upper arm 412A and the lower arm 412B are connected to the magnet holder fixing part 411 and indirectly fixed to the AF fixing part 12.
- the tip portions of the upper arm 412A and the lower arm 412B are connected by a lens holder fixing portion 413.
- the upper arm 412A and the lower arm 412B have a biaxial hinge structure that allows the AF movable unit 11 to move in parallel by bending about two axes.
- a mechanical hinge structure using the elasticity of elastomer By adopting a mechanical hinge structure using the elasticity of elastomer, the AF movable part 11 can be moved with a small force, so that power saving can be achieved.
- the structure is simple and the number of parts is small as compared with the prior art, so that the assembling work can be facilitated.
- the upper arm 412A and the lower arm 412B are formed thinner than the surroundings and have two hinge portions 412a and 412b with the X direction as an axis.
- the hinge portions 412a and 412b are formed by hinge grooves formed at acute angles on the inner surfaces of the upper arm 412A and the lower arm 412B.
- the shape of the hinge groove is not particularly limited, but preferably has an R shape.
- the stiffening portion 42 is disposed between the two hinge portions 412a and 412b in the arm 412.
- a stiffening portion 42 is provided in each of the upper arm 412A and the lower arm 412B.
- the stiffening portion 42 is formed of a material having higher rigidity than the elastomer material, that is, a material having a low coefficient of thermal expansion.
- the stiffening portion 42 is formed, for example, by insert molding a metal piece (for example, a stainless piece). Further, for example, the stiffening part 42 is formed by two-color molding of a resin material (for example, a liquid crystal polymer).
- the size of the stiffening portion 42 only needs to be such that the resonance of the AF movable portion 11 can be suppressed. Extremely speaking, the portion between the hinge portion 412a and the hinge portion 412b is the stiffening portion 42. Also good.
- the arm 412 Since the thermal expansion coefficient of the elastomer material is relatively large, the arm 412 extends and becomes longer as the ambient temperature becomes higher. As the arm 412 becomes longer, it becomes more susceptible to resonance. In addition, since the position of the AF movable unit 11 in the plane orthogonal to the optical axis is shifted by the amount of elongation, shake correction is not appropriately performed, and image quality may be deteriorated.
- the shake correction may be performed in consideration of the extension of the arm 412, but this is not preferable because the calculation processing becomes complicated and the processing load increases.
- the stiffening portion 42 is disposed on the arm 412, so that the rigidity is improved as compared with the case where the entire arm 412 is formed of an elastomer material.
- the stiffening portion 42 is disposed, the resonance that occurs in the vicinity of 1 kHz transitions to a high frequency, and the resonance peak is significantly reduced.
- the positional deviation of the AF movable portion 11 in the plane orthogonal to the optical axis is also suppressed. Therefore, based on the detection signals from the AF position detection unit 113 and the OIS position detection unit 23, the stability when performing the closed loop control is improved, and the reliability of the lens driving device 1 is improved.
- the lens holder 111 is disposed so as to be located inside the arm 412.
- the lens holder 111 and the AF link member 13 are connected by fitting and bonding the notch 413a of the AF link member 13 to the link mounting portion 111c of the lens holder 111. Since the AF link member 13 is disposed close to the side surface of the lens holder 111, the size of the lens driving device 1 in a plan view can be suppressed and the AF movable portion 11 can be supported in a stable state.
- restriction boss 111 d of the lens holder 111 is inserted into the boss accommodating portion 411 a of the magnet holder fixing portion 411.
- the restriction boss 111d functions as a restriction part that restricts the movement of the AF movable part 11 in the optical axis direction. That is, when the AF movable portion 11 moves in the optical axis direction, the upper end (end portion on the light receiving direction in the optical axis direction) or the lower end (end portion on the optical axis direction imaging side) of the restricting boss 111d contacts the boss housing portion 411a. By touching, further movement is restricted.
- the gap between the regulating boss 111d and the boss accommodating portion 411a is sealed by the damper material 115. Thereby, the resonance level of AF movable part 11 can further be reduced.
- the support body 41 includes a magnet holder fixing portion 411 (fixed end) connected to the AF fixing portion 12, a lens holder fixing portion 413 (free end) connected to the AF movable portion 11, and a magnet holder.
- An arm 412 that connects the fixing portion 411 and the lens holder fixing portion 413 is provided.
- the arm 412 is formed of an elastomer material, is formed thinner than the surroundings, has two hinge portions 412a and 412b with the X axis (direction orthogonal to the optical axis direction) as an axis, and the optical axis of the AF movable portion 11 With the movement in the direction, the hinge portions 412a and 412b are bent so that the bending directions are opposite to each other (see FIGS. 12A and 12B). As a result, durability against bending operations repeatedly performed during autofocus is improved, and the risk of breakage due to impact such as dropping is extremely low.
- the OIS fixing unit 20 includes an OIS coil unit 21, a base 22, an OIS position detection unit 23, and the like.
- the coil portion for OIS 21 is disposed at a position facing the magnet portion 122 in the optical axis direction.
- the coil portion for OIS 21 includes a first OIS coil 21A and a second OIS coil 21B corresponding to the first magnet 122A and the second magnet 122B.
- the first OIS coil 21A is formed of an oval planar coil.
- the first OIS coil 21A is disposed on the flat surface portion 114a of the FPC 114 so that the coil surface faces the surface on the image forming side of the first magnet 122A in the optical axis direction.
- the second OIS coil 21B is formed of an oval planar coil.
- the second OIS coil 21B is disposed on the FPC 24 so that the coil surface faces the surface of the second magnet 122B on the optical axis direction imaging side.
- the size and position of the OIS coil portion 21 and the magnet portion 122 are set so that the two long side portions of the respective OIS coils 21A and 21B cross a magnetic field opposite in the Z direction.
- Lorentz forces in the same direction in the X direction or the Y direction are generated in the two long side portions of the OIS coil portion 21.
- the base 22 is a member having a rectangular shape (here, a square shape) in plan view, and is eccentric with respect to the central axis of the base 22 (axis parallel to the optical axis direction passing through the intersection of diagonal lines in plan view of the base 22).
- a circular opening 22a is provided at the position.
- the base 22 has an FPC attachment portion 22b on the periphery of the opening 22a.
- the flat surface portion 114a and the FPC 24 of the FPC 114 are disposed on the FPC attachment portion 22b.
- the area of the portion where the OIS coil portion 21 is not disposed is smaller than the area of the portion where the OIS coil portion 21 is disposed, and is minimized.
- the two OIS position detection units 23 are mounted on the FPC 24.
- the OIS position detector 23 is, for example, a Hall element that detects a magnetic field using the Hall effect (hereinafter referred to as “OIS Hall element 23”).
- the OIS hall element 23 is arranged in the vicinity of one end in the longitudinal direction of the OIS coils 21A and 21B on two adjacent sides of the base 22.
- the Hall element 23 for OIS mainly detects a magnetic field formed by the magnet part 122. Based on the detection result of the OIS Hall element 23, the position of the OIS movable unit 10 in the plane orthogonal to the optical axis can be specified.
- the first magnet 122A and the second magnet 122B are longer in the extending direction than the OIS coils 21A and 21B so as to face the OIS hall element 23.
- a position detection magnet may be arranged in the OIS movable unit 10.
- the FPC 24 includes a power line (not shown) for supplying power to the second OIS coil 21B and the OIS position detector 23, a signal line (not shown) for a detection signal output from the OIS position detector 23, and the like.
- a connection terminal 24a here, 10 pins
- the wiring of the FPC 24 may be embedded in the base 22 by, for example, insert molding. As a result, the FPC 24 on which the OIS position detector 23 is mounted can be omitted, so that the camera module can be reduced in size and weight.
- the direction of the Lorentz force is a direction (Y direction or X direction) orthogonal to the direction of the magnetic field (Z direction) and the direction of the current flowing in the long side portion of the OIS coil section 211 (X direction or Y direction).
- the OIS coil portion 211 Since the OIS coil portion 211 is fixed, a reaction force acts on the magnet portion 122. This reaction force becomes the driving force of the voice coil motor for OIS, and the OIS movable portion 10 having the magnet portion 122 swings in the XY plane, and shake correction is performed. Specifically, the energization current of the shake correction coil unit 211 is based on a detection signal indicating the angular shake from a shake detection unit (eg, a gyro sensor, not shown) so that the angular shake of the camera module A is offset. Is controlled. At this time, the translation result of the OIS movable unit 10 can be accurately controlled by feeding back the detection result of the position detection unit 23 for OIS.
- a shake detection unit eg, a gyro sensor, not shown
- the first side support of the OIS link member 30. 31 bends. That is, as shown in FIG. 10B, the portion of the first side support 31 located below the Y hinge portion 31a moves in the X direction together with the OIS movable portion 10 (magnet holder 121). The portion located above 31 b does not move because it is indirectly connected to the OIS fixing portion 20 via the upper frame 33 and the second side support 32. Therefore, the 1st side part support body 31 bend
- the second side portion of the OIS link member 30 is shown in FIG. 11B.
- the support 32 is bent. That is, the portion of the second side support 32 located above the X hinge portion 32a moves in the Y direction together with the OIS movable portion 10 (magnet holder 121), but is located below the X hinge portion 32b. Since it is connected to the base 22 of the OIS fixing part 20, it does not move. Accordingly, the second side support 32 is bent so that the bending direction of the X hinges 32a and 32b is opposite.
- the lens driving device 1 when the AF coil unit 112 is energized, Lorentz force is generated in the AF coil unit 112 due to the interaction between the magnetic field of the first magnet 122 ⁇ / b> A and the current flowing through the AF coil unit 112.
- the direction of the Lorentz force is a direction (Z direction) orthogonal to the direction of the magnetic field (Y direction) and the direction of the current flowing in the AF coil portion 112 (X direction).
- This force becomes the driving force of the voice coil motor for AF, and the AF movable portion 11 having the AF coil portion 112 moves in the optical axis direction, and focusing is performed.
- the in-focus position is adjusted, for example, by analyzing a plurality of pieces of image information acquired by an imaging unit (not shown) while moving the AF movable unit 11 and performing contrast evaluation.
- the AF movable portion 11 When no power is applied without focusing, the AF movable portion 11 is held by the AF link member 13 in a state of being hung between the infinity position and the macro position (hereinafter referred to as “reference state”).
- the AF movable portion 11 (lens holder 111) is displaced to both sides in the Z direction while being positioned with respect to the AF fixed portion 12 (magnet holder 121) by the AF link member 13. Supported as possible.
- the direction of the current is controlled according to whether the AF movable unit 11 is moved from the reference state to the macro position side or to the infinity position side. Further, the magnitude of the current is controlled according to the moving distance of the AF movable unit 11.
- the arm 412 of the AF link member 13 is bent as shown in FIG. 12B. That is, as shown in FIG. 12B, the portion of the arm 412 that is located to the left of the hinge portion 412b moves in the Z direction together with the AF movable portion 11, but the portion that is located to the right of the hinge portion 412a is the magnet holder. Since it is connected to the AF fixing unit 12 via the fixing unit 411, it does not move. Therefore, the arm 412 bends so that the bending direction in the hinge portions 412a and 412b is opposite.
- the lens driving device 1 includes the magnet unit 122 (shake correction magnet unit) arranged around the lens unit 2 and the OIS coil unit 211 (shake correction use) arranged away from the magnet unit 122.
- Coil portion) and OIS fixed portion 20 (vibration correction fixed portion) including coil portion 211 for OIS and OIS movable portion 10 (vibration correction movable portion) including magnet portion 122 are supported in a state of being separated in the optical axis direction.
- the OIS support portion 30 (shake correction support portion), and using the driving force of an OIS voice coil motor composed of an OIS coil portion 211 and a magnet portion 122, And a shake correction drive unit that performs shake correction by swinging the OIS movable unit 10 in a plane orthogonal to the optical axis direction.
- the OIS movable unit 10 includes an AF coil unit 112 (autofocus coil unit) disposed around the lens unit 2 and a first magnet disposed radially away from the AF coil unit 112.
- the AF movable portion 11 (autofocus movable portion) including the AF coil portion 112 is supported with respect to 122A (autofocus magnet portion) and the AF fixed portion 12 (autofocus fixed portion) including the first magnet 122A.
- the AF fixing unit 12 has an AF support unit 13 (autofocus support unit) and uses the driving force of an AF voice coil motor including the AF coil unit 112 and the first magnet 122A.
- it includes an autofocus drive unit that automatically focuses by moving the AF movable unit 11 in the optical axis direction.
- the set of the coil portion for OIS 21 and the magnet portion 122 is disposed along the adjacent first side and second side.
- the AF movable part 11 is arranged in an eccentric state with respect to the central axis of the lens driving device 1 parallel to the optical axis direction.
- the OIS fixing portion 20 includes connection terminal portions 114 a and 24 a that are disposed on the first side and the second side and are connected to the power supply wiring of the OIS coil portion 21.
- the OIS support portion 30 is formed of an elastomer material and has a biaxial hinge structure that supports the OIS movable portion 10 so as to be movable in a plane orthogonal to the optical axis.
- the AF support portion 13 is formed of an elastomer material and has a biaxial hinge structure that supports the AF movable portion 11 so as to be movable in the optical axis direction.
- the AF support portion 13 includes a support portion main body 41 and a stiffening portion 42.
- the support portion main body 41 includes a magnet holder fixing portion 411 (fixed end) connected to the AF fixing portion 12, a lens holder fixing portion 413 (free end) connected to the AF movable portion 11, and a magnet holder fixing portion 411.
- the arm 412 that couples the lens holder fixing portion 413.
- the arm 412 is formed of an elastomer material, and has two hinge portions 412a and 412b that are formed thinner than the surroundings and have a direction orthogonal to the optical axis direction as an axis.
- the arm 412 bends so that the bending directions of the two hinge portions 412a and 412b are opposite to each other as the AF movable portion 11 moves in the optical axis direction.
- the stiffening portion 42 is formed of a material having rigidity higher than that of the elastomer material, and is disposed between the two hinge portions 412 a and 412 b of the arm 412.
- the rear camera OC (camera module) includes a first lens driving device 1A and a second lens driving device 1B, lens units 2A and 2B corresponding to the lens driving devices 1A and 1B, a lens unit 2A, An imaging unit (not shown) that captures the subject image formed by 2B.
- the lens driving devices 1A and 1B are arranged side by side in a positional relationship rotated by 90 ° in a plane orthogonal to the optical axis so that the connection terminal portions 114a and 24a are not located between them (see FIG. 13).
- the magnet portion 122 is disposed only on two adjacent sides. Therefore, as shown in FIG. 13, the two lens driving devices 1 are rotated by 90 ° in a plane orthogonal to the optical axis direction. By arranging them in parallel, the magnet portions 122 can be moved away from each other. Therefore, a rear camera OC (dual camera) with less magnetic interference can be realized. In addition, the distance between the lens driving devices 1A and 1B is minimized, and the area of the portion where the pair of the magnet portion for OIS 21 and the magnet portion 122 is not arranged is minimized, thereby reducing the size of the rear camera OC. Can be achieved.
- the lens driving devices 1A and 1B are arranged side by side so that the connection terminal portions 114a and 24a are not disposed between them, the soldering work of the connection terminal portions 114a and 24a does not become complicated.
- the lens driving devices 1A and 1B since the AF movable portion 11 is provided in an eccentric state with respect to the central axis of the lens driving devices 1A and 1B, the lens driving devices 1A and 1B are rotated by 180 °. If they are arranged side by side, the horizontal positions of the lens portions 2A and 2B are shifted, and there is a possibility that the imaging areas will not be the same.
- the lens driving devices 1A and 1B are arranged in parallel with each other rotated by 90 ° as in the present embodiment, the horizontal positions of the lens portions 2A and 2B are the same. Can be suppressed.
- the lens driving device 1 the risk of damaging the shake correction support portion and the autofocus support portion due to impact such as dropping is extremely low.
- the structure is simpler and the number of parts is smaller than in the past.
- the influence of resonance that the AF movable part 11 receives can be significantly reduced. Therefore, high reliability can be ensured, OIS sensitivity can be increased, and assembly work can be facilitated.
- the OIS support portion 30 and the AF support portion 13 may be formed of an elastomer material and have a biaxial hinge structure, and are not limited to the support structure shown in the embodiment.
- the first OIS coil 21A and the second OIS coil 21B may each have a divided structure composed of two coil portions.
- the two coil portions are formed of, for example, one winding so that the directions of the flowing currents are the same.
- the OIS hall element 23 is disposed at a position corresponding to the divided portion.
- the first OIS coil 21A and the second OIS coil 21B have an ellipse-shaped upper coil layer 211a (first coil layer) and an upper coil layer 211a that are elongated. You may make it have the 2 layer structure which consists of the lower coil layer 211b (2nd coil layer) divided
- the upper coil layer 211a and the lower coil layer 211b are formed of, for example, one winding so that the direction of the flowing current is the same.
- the OIS hall element 23 is disposed at a position corresponding to the divided portion.
- the “position corresponding to the divided portion” includes not only between the divided portions but also a position shifted from the divided portions in the optical axis direction.
- the OIS coil portion 211 when the OIS coil portion 211 is energized, even if a magnetic flux is generated in the OIS coil portion 211, the magnetic flux incident on the OIS hall element 23 becomes small.
- the influence of the magnetic field by the coil unit 211 is suppressed. That is, electrical resonance is suppressed, and even when feedback control is performed at 150 to 200 Hz, the gain in the low frequency band is improved. Therefore, the detection sensitivity of the OIS hall element 23 is improved, the settling time of the OIS drive unit is shortened, and the accuracy of shake correction is improved.
- the upper coil layer 211a is not divided, a large Lorentz force is generated in the OIS coil section 211 as compared with the case where the entire OIS coil section 211 has a divided structure. Therefore, the sensitivity of shake correction is also improved.
- stiffening portion 42 embedded in the arm 412 of the AF support portion 13 this may be used as a power supply line or a signal line for the AF coil portion 112 and the AF hall element 113.
- this stiffening portion 42 and the wiring of the base 22 and between the stiffening portion 42 and the AF coil portion 112 and the AF hall element 113 for example, high flexibility. Stretchable wiring can be used.
- a smartphone that is a camera-equipped mobile terminal has been described as an example of a camera-mounted device that includes camera modules CM1 and CM2.
- the present invention can be applied to a camera-mounted device that is an information device or a transport device.
- An on-camera device that is an information device is an information device having a camera module and a control unit that processes image information obtained by the camera module.
- a camera-equipped mobile phone, a notebook computer, a tablet terminal, and a portable game machine Web cameras, and in-vehicle devices with cameras (for example, back monitor devices, drive recorder devices).
- the camera mounting apparatus which is a transport apparatus is a transport apparatus which has a control part which processes a camera module and the image acquired with the camera module, for example, includes a motor vehicle.
- FIG. 16A and FIG. 16B are views showing a vehicle V as a camera mounting device on which a camera module VC (Vehicle Camera) is mounted.
- 16A is a front view of the automobile V
- FIG. 16B is a rear perspective view of the automobile V.
- the automobile V is equipped with the camera module A described in the embodiment as an in-vehicle camera module VC.
- the in-vehicle camera module VC is attached to the windshield, for example, facing forward or attached to the rear gate facing backward.
- This in-vehicle camera module VC is used for a back monitor, a drive recorder, a collision avoidance control, an automatic driving control, and the like.
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Adjustment Of Camera Lenses (AREA)
- Lens Barrels (AREA)
- Studio Devices (AREA)
- Cameras In General (AREA)
- Camera Bodies And Camera Details Or Accessories (AREA)
Abstract
Description
レンズ部の周囲に配置される振れ補正用マグネット部と、前記振れ補正用マグネット部から離間して配置される振れ補正用コイル部と、前記振れ補正用コイル部を含む振れ補正固定部に対して前記振れ補正用マグネット部を含む振れ補正可動部を光軸方向に離間した状態で支持する振れ補正用支持部とを有し、前記振れ補正用コイル部と前記振れ補正用マグネット部で構成される振れ補正用ボイスコイルモーターの駆動力を利用して、前記振れ補正固定部に対して前記振れ補正可動部を光軸方向に直交する平面内で揺動させることにより振れ補正を行う振れ補正用駆動部を備え、
前記振れ補正可動部は、前記レンズ部の周囲に配置されるオートフォーカス用コイル部と、前記オートフォーカス用コイル部に対して径方向に離間して配置されるオートフォーカス用マグネット部と、前記オートフォーカス用マグネット部を含むオートフォーカス固定部に対して前記オートフォーカス用コイル部を含むオートフォーカス可動部を支持するオートフォーカス用支持部とを有し、前記オートフォーカス用コイル部と前記オートフォーカス用マグネット部とで構成されるオートフォーカス用ボイスコイルモーターの駆動力を利用して、前記オートフォーカス固定部に対して前記オートフォーカス可動部を光軸方向に移動させることにより自動的にピント合わせを行うオートフォーカス用駆動部を含み、
前記振れ補正用コイル部と前記振れ補正用マグネット部の組は、隣接する第1の辺及び第2の辺に沿って配置され、
前記オートフォーカス可動部は、光軸方向に沿う中心軸に対して偏心状態で配置され、
前記振れ補正固定部は、前記第1の辺及び前記第2の辺に配置され、前記振れ補正用コイル部の給電用配線に接続される接続端子部を有することを特徴とするレンズ駆動装置。
上記のレンズ駆動装置からなる第1のレンズ駆動装置及び第2のレンズ駆動装置と、
前記第1のレンズ駆動装置及び前記第2のレンズ駆動装置のそれぞれに対応する前記レンズ部と、
前記レンズ部により結像された被写体像を撮像する撮像部と、を備え、
前記第1のレンズ駆動装置及び前記第2のレンズ駆動装置は、両者の間に前記接続端子部が位置しないように、前記光軸に直交する平面内で90°回転した位置関係で並設されていることを特徴とする。
上記のカメラモジュールを備えることを特徴とする。
図1A、図1Bは、本発明の一実施の形態に係るカメラモジュールCM1、CM2を搭載するスマートフォンM(カメラ搭載装置)を示す図である。図1AはスマートフォンMの正面図であり、図1BはスマートフォンMの背面図である。
カメラモジュールCM1、CM2は、ぞれぞれ、円筒形状のレンズバレルにレンズが収容されてなるレンズ部2、AF用及びOIS用のレンズ駆動装置1、レンズ部2により結像された被写体像を撮像する撮像部(図示略)、及び全体を覆うカバー3等を備える。以下において、カメラモジュールCM1、CM2のレンズ駆動装置1及びレンズ部2を区別する場合は、「第1のレンズ駆動装置1A」、「第1のレンズ部2A」、「第2のレンズ駆動装置1B」、「第2のレンズ部2B」と称する。
マグネット部122は、第1のマグネット122A及び第2のマグネット122Bを有する。第1のマグネット122A及び第2のマグネット122Bは、両面4極の直方体状の永久磁石(符号略)である。すなわち、第1のマグネット122A及び第2のマグネット122Bにおいては、6面すべてにおいて、N極とS極が等分に現れている。第1のマグネット122Aは、AF用コイル部112に対向するように、X方向に沿って配置される。第2のマグネット122BはY方向に沿って配置される。
OIS用コイル部21は、光軸方向においてマグネット部122と対向する位置に配置される。OIS用コイル部21は、第1のマグネット122A及び第2のマグネット122Bに対応する第1のOISコイル21A及び第2のOISコイル21Bを有する。
2、2A、2B レンズ部
3 カバー
10 OIS可動部(振れ補正可動部)
11 AF可動部(オートフォーカス可動部)
111 レンズホルダー
112 AF用コイル部(オートフォーカス用コイル部)
113 AF用位置検出部、AF用ホール素子
114 FPC
114c 接続端子部
12 AF固定部(オートフォーカス固定部)
121 マグネットホルダー
122 マグネット部
122A 第1のマグネット(オートフォーカス用マグネット部、振れ補正用マグネット部)
122B 第2のマグネット(振れ補正用マグネット部)
13 AF用支持部、AF用リンク部材(オートフォーカス用支持部)
20 OIS固定部(振れ補正固定部)
21 OIS用コイル部(振れ補正用コイル部)
21A 第1のOISコイル
21B 第2のOISコイル
22 ベース
23 OIS用位置検出部、OIS用ホール素子
24 FPC
24a 接続端子部
30 OIS用支持部、OIS用リンク部材(振れ補正用支持部)
31 第1の側部支持体
31a、31b Yヒンジ部
32 第2の側部支持体
32a、32b Xヒンジ部
33 上部枠体
41 支持部本体
411 マグネットホルダー固定部(固定端)
412 アーム
412a、412b ヒンジ部
413 レンズホルダー固定部(自由端)
42 補剛部
CM1、CM2 カメラモジュール
M スマートフォン(カメラ搭載装置)
Claims (8)
- 平面視で矩形状を有するレンズ駆動装置であって、
レンズ部の周囲に配置される振れ補正用マグネット部と、前記振れ補正用マグネット部から離間して配置される振れ補正用コイル部と、前記振れ補正用コイル部を含む振れ補正固定部に対して前記振れ補正用マグネット部を含む振れ補正可動部を光軸方向に離間した状態で支持する振れ補正用支持部とを有し、前記振れ補正用コイル部と前記振れ補正用マグネット部で構成される振れ補正用ボイスコイルモーターの駆動力を利用して、前記振れ補正固定部に対して前記振れ補正可動部を光軸方向に直交する平面内で揺動させることにより振れ補正を行う振れ補正用駆動部を備え、
前記振れ補正可動部は、前記レンズ部の周囲に配置されるオートフォーカス用コイル部と、前記オートフォーカス用コイル部に対して径方向に離間して配置されるオートフォーカス用マグネット部と、前記オートフォーカス用マグネット部を含むオートフォーカス固定部に対して前記オートフォーカス用コイル部を含むオートフォーカス可動部を支持するオートフォーカス用支持部とを有し、前記オートフォーカス用コイル部と前記オートフォーカス用マグネット部とで構成されるオートフォーカス用ボイスコイルモーターの駆動力を利用して、前記オートフォーカス固定部に対して前記オートフォーカス可動部を光軸方向に移動させることにより自動的にピント合わせを行うオートフォーカス用駆動部を含み、
前記振れ補正用コイル部と前記振れ補正用マグネット部の組は、隣接する第1の辺及び第2の辺に沿って配置され、
前記オートフォーカス可動部は、光軸方向に平行な当該レンズ駆動装置の中心軸に対して偏心状態で配置され、
前記振れ補正固定部は、前記第1の辺及び前記第2の辺に配置され、前記振れ補正用コイル部の給電用配線に接続される接続端子部を有することを特徴とするレンズ駆動装置。 - 前記振れ補正用支持部は、エラストマー材料で形成され、前記振れ補正可動部を光軸に直交する面内で移動可能に支持する2軸ヒンジ構造を有し、
前記オートフォーカス用支持部は、エラストマー材料で形成され、前記オートフォーカス可動部を光軸方向に移動可能に支持する2軸ヒンジ構造を有することを特徴とする請求項1に記載のレンズ駆動装置。 - 前記オートフォーカス用支持部は、支持部本体と、補剛部と、を有し、
前記支持部本体は、前記オートフォーカス固定部に接続される固定端と、前記オートフォーカス可動部に接続される自由端と、前記固定端と前記自由端を連結するアームと、を有し、
前記アームは、エラストマー材料で形成され、周囲よりも薄肉に形成され光軸方向と直交する方向を軸とする2つのヒンジ部を有し、前記オートフォーカス可動部の光軸方向への移動に伴い、前記2つのヒンジ部における屈曲方向が互いに逆方向となるように屈曲し、
前記補剛部は、前記エラストマー材料よりも剛性の高い材料で形成され、前記アームの前記2つのヒンジ部間に配置されることを特徴とする請求項2に記載のレンズ駆動装置。 - 前記補剛部は、金属材料又は樹脂材料で形成されることを特徴とする請求項3に記載のレンズ駆動装置。
- 前記オートフォーカス可動部は、前記アームの延在方向と交差する面に配置され、磁界の変化に基づいて、当該オートフォーカス可動部の光軸方向の位置を検出する位置検出部を有し、
前記オートフォーカス固定部は、前記位置検出部に対向して配置される位置検出用マグネットを有することを特徴とする請求項3に記載のレンズ駆動装置。 - 前記オートフォーカス固定部と前記固定端との間に介在するダンパー部を備えることを特徴とする請求項3に記載のレンズ駆動装置。
- 請求項1に記載のレンズ駆動装置からなる第1のレンズ駆動装置及び第2のレンズ駆動装置と、
前記第1のレンズ駆動装置及び前記第2のレンズ駆動装置のそれぞれに対応する前記レンズ部と、
前記レンズ部により結像された被写体像を撮像する撮像部と、を備え、
前記第1のレンズ駆動装置及び前記第2のレンズ駆動装置は、両者の間に前記接続端子部が位置しないように、前記光軸に直交する平面内で90°回転した位置関係で並設されていることを特徴とするカメラモジュール。 - 情報機器または輸送機器であるカメラ搭載装置であって、
請求項7に記載のカメラモジュールを備えることを特徴とするカメラ搭載装置。
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020197020749A KR102542168B1 (ko) | 2017-01-18 | 2018-01-15 | 렌즈 구동장치, 카메라 모듈, 및 카메라 탑재 장치 |
US16/478,945 US10890781B2 (en) | 2017-01-18 | 2018-01-15 | Lens drive device, camera module, and camera-equipped device |
EP18742314.0A EP3572858A4 (en) | 2017-01-18 | 2018-01-15 | LENS DRIVE DEVICE, CAMERA MODULE AND DEVICE WITH CAMERA |
JP2018563307A JP7041360B2 (ja) | 2017-01-18 | 2018-01-15 | レンズ駆動装置、カメラモジュール、及びカメラ搭載装置 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201710034450.6A CN108319093B (zh) | 2017-01-18 | 2017-01-18 | 透镜驱动装置、摄像机模块以及摄像机搭载装置 |
CN201710034450.6 | 2017-01-18 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2018135423A1 true WO2018135423A1 (ja) | 2018-07-26 |
Family
ID=62890727
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2018/000772 WO2018135423A1 (ja) | 2017-01-18 | 2018-01-15 | レンズ駆動装置、カメラモジュール、及びカメラ搭載装置 |
Country Status (6)
Country | Link |
---|---|
US (1) | US10890781B2 (ja) |
EP (1) | EP3572858A4 (ja) |
JP (1) | JP7041360B2 (ja) |
KR (1) | KR102542168B1 (ja) |
CN (1) | CN108319093B (ja) |
WO (1) | WO2018135423A1 (ja) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2020027285A (ja) * | 2018-08-09 | 2020-02-20 | エーエーシー テクノロジーズ ピーティーイー リミテッド | レンズモジュール |
WO2020122047A1 (ja) * | 2018-12-14 | 2020-06-18 | ミツミ電機株式会社 | レンズ駆動装置、カメラモジュール、及びカメラ搭載装置 |
JP2020095217A (ja) * | 2018-12-14 | 2020-06-18 | ミツミ電機株式会社 | レンズ駆動装置、カメラモジュール、及びカメラ搭載装置 |
CN112654920A (zh) * | 2018-08-13 | 2021-04-13 | 米尼斯怀斯股份公司 | 透镜驱动装置、摄像机模块及摄像机搭载装置 |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR102510364B1 (ko) * | 2016-05-31 | 2023-03-14 | 미쓰미덴기가부시기가이샤 | 렌즈 구동장치, 카메라 모듈, 및 카메라 탑재 장치 |
US11105962B2 (en) * | 2018-01-25 | 2021-08-31 | Tdk Taiwan Corp. | Optical system and control method for the optical system |
CN111273420A (zh) * | 2018-12-05 | 2020-06-12 | 信泰光学(深圳)有限公司 | 摄像装置 |
CN109655994A (zh) * | 2019-02-20 | 2019-04-19 | 重庆睿恩光电子有限责任公司 | 透镜驱动装置、摄像头装置及电子设备 |
KR102334157B1 (ko) * | 2019-07-17 | 2021-12-03 | 자화전자(주) | 댐퍼 및 이를 포함하는 카메라용 액추에이터 |
KR102279920B1 (ko) | 2020-02-10 | 2021-07-22 | 삼성전기주식회사 | 카메라 모듈 |
CN112600360B (zh) * | 2020-12-14 | 2022-04-12 | 基合半导体(宁波)有限公司 | 对焦马达、对焦马达的闭环控制方法及摄像设备 |
JP2024515011A (ja) * | 2021-03-24 | 2024-04-04 | エルジー イノテック カンパニー リミテッド | アクチュエータ装置 |
CN117389062A (zh) * | 2021-04-28 | 2024-01-12 | 新思考电机有限公司 | 光学防抖弹性支撑机构、防抖和透镜驱动装置及摄像装置 |
US11743565B1 (en) | 2021-09-24 | 2023-08-29 | Apple Inc. | Coil structure of camera actuators |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2008040188A (ja) * | 2006-08-08 | 2008-02-21 | Seiko Instruments Inc | 支持装置、支持駆動装置、レンズ駆動モジュール、カメラモジュール及び電子機器 |
JP2011141517A (ja) * | 2009-12-11 | 2011-07-21 | Panasonic Corp | レンズアクチュエータ |
JP2013024938A (ja) | 2011-07-15 | 2013-02-04 | Mitsumi Electric Co Ltd | レンズ駆動装置 |
JP2016020939A (ja) * | 2014-07-11 | 2016-02-04 | ミツミ電機株式会社 | レンズ駆動装置、カメラモジュール、及びカメラ付き携帯端末 |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8842355B2 (en) * | 2007-12-10 | 2014-09-23 | Parker-Hannifin Corporation | Lens shutter and aperture control devices |
JP2014126668A (ja) * | 2012-12-26 | 2014-07-07 | Mitsumi Electric Co Ltd | レンズ駆動装置、カメラモジュール、及びカメラ付き携帯端末 |
KR101494823B1 (ko) * | 2013-05-08 | 2015-02-23 | (주)옵티스 | 카메라 모듈 |
KR102148988B1 (ko) * | 2013-07-12 | 2020-08-27 | 엘지이노텍 주식회사 | 카메라 모듈 |
US9810917B2 (en) * | 2014-01-24 | 2017-11-07 | Apple Inc. | Passive damping for optical image stabilization |
KR20150113675A (ko) * | 2014-03-31 | 2015-10-08 | 자화전자(주) | 듀얼 카메라 모듈 |
JP6311434B2 (ja) * | 2014-04-25 | 2018-04-18 | ミツミ電機株式会社 | アクチュエーター、カメラモジュール、及びカメラ付き携帯端末 |
US9772506B2 (en) * | 2014-11-12 | 2017-09-26 | Tdk Taiwan Corp. | Configuration of flexible connections used in a lens driving module |
KR101555904B1 (ko) * | 2015-02-17 | 2015-09-30 | (주) 엠디펄스 | 카메라 모듈 |
JP6500540B2 (ja) | 2015-03-24 | 2019-04-17 | ミツミ電機株式会社 | レンズ駆動装置、カメラモジュール、及びカメラ搭載装置 |
EP3492958B1 (en) * | 2015-04-02 | 2022-03-30 | Corephotonics Ltd. | Dual voice coil motor structure in a dual-optical module camera |
KR102510364B1 (ko) * | 2016-05-31 | 2023-03-14 | 미쓰미덴기가부시기가이샤 | 렌즈 구동장치, 카메라 모듈, 및 카메라 탑재 장치 |
-
2017
- 2017-01-18 CN CN201710034450.6A patent/CN108319093B/zh active Active
-
2018
- 2018-01-15 WO PCT/JP2018/000772 patent/WO2018135423A1/ja unknown
- 2018-01-15 KR KR1020197020749A patent/KR102542168B1/ko active IP Right Grant
- 2018-01-15 JP JP2018563307A patent/JP7041360B2/ja active Active
- 2018-01-15 EP EP18742314.0A patent/EP3572858A4/en not_active Withdrawn
- 2018-01-15 US US16/478,945 patent/US10890781B2/en active Active
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2008040188A (ja) * | 2006-08-08 | 2008-02-21 | Seiko Instruments Inc | 支持装置、支持駆動装置、レンズ駆動モジュール、カメラモジュール及び電子機器 |
JP2011141517A (ja) * | 2009-12-11 | 2011-07-21 | Panasonic Corp | レンズアクチュエータ |
JP2013024938A (ja) | 2011-07-15 | 2013-02-04 | Mitsumi Electric Co Ltd | レンズ駆動装置 |
JP2016020939A (ja) * | 2014-07-11 | 2016-02-04 | ミツミ電機株式会社 | レンズ駆動装置、カメラモジュール、及びカメラ付き携帯端末 |
Non-Patent Citations (1)
Title |
---|
See also references of EP3572858A4 |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2020027285A (ja) * | 2018-08-09 | 2020-02-20 | エーエーシー テクノロジーズ ピーティーイー リミテッド | レンズモジュール |
CN112654920A (zh) * | 2018-08-13 | 2021-04-13 | 米尼斯怀斯股份公司 | 透镜驱动装置、摄像机模块及摄像机搭载装置 |
CN112654920B (zh) * | 2018-08-13 | 2022-09-20 | 米尼斯怀斯股份公司 | 透镜驱动装置、摄像机模块及摄像机搭载装置 |
CN115494680A (zh) * | 2018-08-13 | 2022-12-20 | 米尼斯怀斯股份公司 | 透镜的抖动修正装置、摄像机模块及摄像机搭载装置 |
WO2020122047A1 (ja) * | 2018-12-14 | 2020-06-18 | ミツミ電機株式会社 | レンズ駆動装置、カメラモジュール、及びカメラ搭載装置 |
JP2020095217A (ja) * | 2018-12-14 | 2020-06-18 | ミツミ電機株式会社 | レンズ駆動装置、カメラモジュール、及びカメラ搭載装置 |
JP7295375B2 (ja) | 2018-12-14 | 2023-06-21 | ミツミ電機株式会社 | レンズ駆動装置、カメラモジュール、及びカメラ搭載装置 |
US11962883B2 (en) | 2018-12-14 | 2024-04-16 | Mitsumi Electric Co., Ltd. | Lens driving device, camera module, and camera mounting device |
Also Published As
Publication number | Publication date |
---|---|
CN108319093A (zh) | 2018-07-24 |
KR102542168B1 (ko) | 2023-06-09 |
US20200041811A1 (en) | 2020-02-06 |
KR20190104161A (ko) | 2019-09-06 |
JP7041360B2 (ja) | 2022-03-24 |
CN108319093B (zh) | 2021-08-06 |
US10890781B2 (en) | 2021-01-12 |
EP3572858A4 (en) | 2020-09-23 |
JPWO2018135423A1 (ja) | 2019-12-19 |
EP3572858A1 (en) | 2019-11-27 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP7041360B2 (ja) | レンズ駆動装置、カメラモジュール、及びカメラ搭載装置 | |
JP6652734B2 (ja) | レンズ駆動装置、カメラモジュール、及びカメラ搭載装置 | |
JP6853487B2 (ja) | レンズ駆動装置、カメラモジュール、及びカメラ搭載装置 | |
US10591744B2 (en) | Lens drive device, camera module, and camera-equipped device | |
JP7096484B2 (ja) | レンズ駆動装置、カメラモジュール、及びカメラ搭載装置 | |
CN109073851B (zh) | 透镜驱动装置以及包括其的摄像机模块和光学装置 | |
TW201804195A (zh) | 鏡頭驅動裝置、相機模組及配備相機的裝置 | |
JP6712070B2 (ja) | レンズ駆動装置、カメラモジュール、及びカメラ搭載装置 | |
CN113589467B (zh) | 透镜驱动装置、摄像机模块及摄像机搭载装置 | |
JP2021085932A (ja) | レンズ駆動装置、カメラモジュール及びカメラ搭載装置 | |
US20230221574A1 (en) | Sensor shifting actuator and camera module including sensor shifting actuator |
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: 18742314 Country of ref document: EP Kind code of ref document: A1 |
|
ENP | Entry into the national phase |
Ref document number: 2018563307 Country of ref document: JP Kind code of ref document: A Ref document number: 20197020749 Country of ref document: KR Kind code of ref document: A |
|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
ENP | Entry into the national phase |
Ref document number: 2018742314 Country of ref document: EP Effective date: 20190819 |