WO2020135466A1 - 镜头致动装置、潜望式拍摄模组及拍摄设备 - Google Patents

镜头致动装置、潜望式拍摄模组及拍摄设备 Download PDF

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Publication number
WO2020135466A1
WO2020135466A1 PCT/CN2019/128135 CN2019128135W WO2020135466A1 WO 2020135466 A1 WO2020135466 A1 WO 2020135466A1 CN 2019128135 W CN2019128135 W CN 2019128135W WO 2020135466 A1 WO2020135466 A1 WO 2020135466A1
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WO
WIPO (PCT)
Prior art keywords
motor
translation
elastic member
optical axis
actuating device
Prior art date
Application number
PCT/CN2019/128135
Other languages
English (en)
French (fr)
Inventor
郭利德
吴雨顺
李坤宜
Original Assignee
华为技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to EP19905977.5A priority Critical patent/EP3839611B1/en
Publication of WO2020135466A1 publication Critical patent/WO2020135466A1/zh
Priority to US17/207,345 priority patent/US11487079B2/en

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    • 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
    • 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
    • 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
    • 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
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B13/00—Viewfinders; Focusing aids for cameras; Means for focusing for cameras; Autofocus systems for cameras
    • G03B13/32—Means for focusing
    • G03B13/34—Power focusing
    • G03B13/36—Autofocus systems
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B30/00—Camera modules comprising integrated lens units and imaging units, specially adapted for being embedded in other devices, e.g. mobile phones or vehicles
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B5/00—Adjustment of optical system relative to image or object surface other than for focusing
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
    • H02K11/20—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection for measuring, monitoring, testing, protecting or switching
    • H02K11/21—Devices for sensing speed or position, or actuated thereby
    • H02K11/215—Magnetic effect devices, e.g. Hall-effect or magneto-resistive elements
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K41/00—Propulsion systems in which a rigid body is moved along a path due to dynamo-electric interaction between the body and a magnetic field travelling along the path
    • H02K41/02—Linear motors; Sectional motors
    • H02K41/035—DC motors; Unipolar motors
    • H02K41/0352—Unipolar motors
    • H02K41/0354—Lorentz force motors, e.g. voice coil motors
    • H02K41/0356—Lorentz force motors, e.g. voice coil motors moving along a straight path
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/50—Constructional details
    • H04N23/51—Housings
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/50—Constructional details
    • H04N23/54—Mounting of pick-up tubes, electronic image sensors, deviation or focusing coils
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/50—Constructional details
    • H04N23/55—Optical parts specially adapted for electronic image sensors; Mounting thereof
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/60—Control of cameras or camera modules
    • H04N23/68—Control of cameras or camera modules for stable pick-up of the scene, e.g. compensating for camera body vibrations
    • H04N23/682—Vibration or motion blur correction
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/60—Control of cameras or camera modules
    • H04N23/68—Control of cameras or camera modules for stable pick-up of the scene, e.g. compensating for camera body vibrations
    • H04N23/682—Vibration or motion blur correction
    • H04N23/685—Vibration or motion blur correction performed by mechanical compensation
    • H04N23/687—Vibration or motion blur correction performed by mechanical compensation by shifting the lens or sensor position
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B2205/00—Adjustment of optical system relative to image or object surface other than for focusing
    • G03B2205/0007—Movement of one or more optical elements for control of motion blur
    • G03B2205/0023—Movement of one or more optical elements for control of motion blur by tilting or inclining one or more optical elements with respect to the optical axis
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B2205/00—Adjustment of optical system relative to image or object surface other than for focusing
    • G03B2205/0007—Movement of one or more optical elements for control of motion blur
    • G03B2205/003—Movement of one or more optical elements for control of motion blur by a prism with variable angle or the like
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B2205/00—Adjustment of optical system relative to image or object surface other than for focusing
    • G03B2205/0053—Driving means for the movement of one or more optical element
    • G03B2205/0069—Driving means for the movement of one or more optical element using electromagnetic actuators, e.g. voice coils

Definitions

  • the present application relates to the field of electronic technology, and in particular to a lens actuating device, a periscope shooting module and a shooting device including the lens actuating device.
  • the shooting equipment generally includes a lens group, which refracts different light rays from different lenses in the lens group to illuminate the image sensor to form an image.
  • a motor is provided to drive the lens group to translate in the optical axis direction for focusing.
  • the two motors around the lens group are symmetrically arranged, and by controlling the difference in the force exerted on the lens group by the two symmetrical motors, the lens group rotates in a plane perpendicular to the optical axis, To compensate for the shaking when shooting, to achieve anti-shake.
  • the motors that drive the translation and rotation of the lens group are the same motor, so that the translation and rotation of the lens group can only be performed separately.
  • the present application provides a lens actuating device, a periscope shooting module and a shooting device including the lens actuating device, aiming to realize the simultaneous translation and rotation of the lens group and the improvement of focusing and anti-shake efficiency, To quickly get a clear picture.
  • the present application provides a lens actuation device for driving an optical component fixed to the lens actuation device to move or rotate;
  • the lens actuation device includes a housing and a bracket, a plurality of elastic members, and a translation Type motor and shift shaft motor;
  • the bracket is housed in the housing, the optical component is fixed with the bracket, the optical component is used to change the direction of light propagation;
  • a plurality of the elastic members are connected to the Between the housing and the bracket, and spaced around the optical axis of the optical component, for supporting the bracket in the housing;
  • the translation motor and the shaft motor are located at Between the housing and the bracket, and both the translation motor and the shaft motor include a fixed part and a movable part that moves relative to the fixed part;
  • the fixed part of the translation motor One of the movable parts is fixed to the bracket and the other is fixed to the casing, and the translation motor is used to drive the bracket to move in a translation direction relative to the casing;
  • a translation motor and a shaft-shift motor are provided on the bracket of the lens actuating device, so as to drive the translation of the optical component fixed to the bracket by the translation motor, to achieve the inclusion of the optical component And the focusing and anti-shake of the shooting module of the lens actuating device.
  • the shifting motor drives the rotation of the optical component fixed to the bracket to drive the shifting axis of the optical component located on the bracket, thereby compensating the shooting module including the optical component and the lens actuating device when shooting The generated jitter realizes the anti-shake of the shooting module.
  • the translation motor and the shaft motor are independent entities, so that the translation motor and the shaft motor can work at the same time, which can simultaneously drive the translation and rotation of the bracket, and can be installed at the same time.
  • the focusing and anti-shake of the optical components on the bracket have higher control efficiency, so as to quickly obtain a clear image.
  • the rotation of the bracket can be realized by the cooperation of the shaft-shifting motor and the elastic member. There is no need to set two or two symmetrical motors around the bracket, and there is no need to control the difference in the driving force of the bracket by the opposite motor.
  • the rotation is realized, so that the number of motors around the bracket can be reduced, and the volume occupied by the lens actuating device can be reduced.
  • the control of the motors can be simplified and the control efficiency can be improved.
  • the elastic members are two-degree-of-freedom elastic bodies, and the elastic coefficient in the first direction is smaller than the elastic coefficient in the second direction or the third direction, wherein the first direction, the second direction, and the second direction The three directions are orthogonal respectively, and the translation direction of the bracket is parallel to the first direction.
  • the elastic member is a two-degree-of-freedom elastic body, that is, the elastic coefficient of the elastic member in two of the three orthogonal directions is smaller than the elastic coefficient in the other direction, making the elastic member Of the three orthogonal directions, two of them are more easily deformed than the other.
  • elastic members with different degrees of freedom are selected to be used at different positions of the bracket, so that when the shift shaft motor generates a force on the bracket, the elastic members provided at different positions of the bracket are located in the shift shaft motor
  • the elastic coefficient of the direction of the force acting on the bracket is different, so that the bracket rotates, so that it is not necessary to control the driving force of the bracket at different positions to the bracket to achieve the rotation of the bracket, simplify the control of the shifting motor, and improve efficiency. And it can prevent the bracket from rotating in the non-rotation direction or rotating in the non-translation direction.
  • the lens actuating device further includes a plurality of position sensors, and the position sensors correspond one-to-one to the shift-axis motor and the shift-motor.
  • the position sensor corresponds one-to-one to the shift-axis motor and the shift-motor.
  • the optical component includes a light incident surface and a light exit surface at an angle to the light incident surface, the light incident surface has an optical axis perpendicular to the light incident surface, and the light exit surface
  • the surface has a light exit axis perpendicular to the light exit surface; the elastic member is in a sheet shape, and the light entrance axis is parallel to the plane where the elastic member is located.
  • the light incident surface and the light exit surface of the optical component form an angle, that is, the optical component can change the propagation direction of the light passing therethrough.
  • the plane of the elastic member is parallel to the optical axis, that is, the elastic member cannot be disposed in the direction of the optical axis, thereby preventing the elastic member from increasing the thickness of the lens actuating device along the optical axis.
  • the optical axis is perpendicular to the optical axis
  • the translation direction is parallel to the optical axis
  • the rotation axis is perpendicular to both the optical axis and the optical axis.
  • both the translation motor and the shaft motor are voice coil motors, and the movable parts of the translation motor and the shaft motor are magnets and are fixed to the bracket.
  • the direction of the N pole and S pole of the movable part of the translation motor is the same as the direction of the optical axis, and the direction of the N pole and S pole of the movable part of the shift motor is the same as the direction of the optical axis .
  • the voice coil motor generally includes a magnet and a coil corresponding to the magnet. By passing currents of different magnitudes into the coil, the magnitude of the Loren magnetic force between the coil and the magnet is controlled to control the propulsion of the bracket according to actual needs.
  • the direction of the N pole and S pole of the movable part of the translation motor is the same as the direction of the optical axis, so that the direction of the Loren magnetic force between the magnet and the coil of the translation motor is the direction of the optical axis .
  • the direction of the N pole and S pole of the movable part of the shifting motor is the same as the direction of the optical axis, so that the direction of the Loren magnetic force between the magnet and the coil of the shifting motor is the optical axis direction.
  • the light entrance axis is perpendicular to the light exit axis, and both the translation direction and the rotation axis direction are parallel to the light exit axis.
  • the lens actuating device drives the optical component to move in the direction of the optical axis, and can adjust the distance between the optical component and the photosensitive chip, that is, the image distance can be adjusted, thereby The focusing of the camera module can be achieved.
  • the rotation axis is perpendicular to the light entrance axis and the light exit axis, so that the bracket can drive the optical component to realize anti-shake in the direction perpendicular to the light exit axis and the light entrance axis.
  • both the translation motor and the shaft motor are voice coil motors, and the movable parts of the translation motor and the shaft motor are magnets, and are fixed on the bracket;
  • the direction of the N pole and S pole of the fixed part of the translation motor is perpendicular to the light exit axis and the light exit axis, and the direction of the N pole and S pole of the fixed part of the shift motor is to the direction of the light entrance axis The same direction.
  • the direction of the N pole and S pole of the movable part of the translation motor is perpendicular to the optical axis and the optical axis, so that the direction of the Loren magnetic force between the magnet and the coil of the translation motor
  • the direction of the N pole and S pole of the movable part of the shifting motor is the same as the direction of the optical axis, so that the direction of the Loren magnetic force between the magnet and the coil of the shifting motor is the optical axis direction.
  • the bracket includes a first surface and a second surface disposed oppositely, and a third surface connected between the first surface and the second surface, and the third surface Away from the light exit surface of the optical component;
  • the shift motor is symmetrically disposed on the first surface and the second surface, and the translation motor is located in the center of the third surface or symmetrically disposed on the first surface A surface and a second surface;
  • the translation motor and the shaft motor located on the same surface are arranged side by side along the direction of the optical axis.
  • the bracket includes a first surface and a second surface that are oppositely disposed, and a third surface connected between the first surface and the second surface, and the third The surface is far away from the light exit surface of the optical component; the shifting motor is disposed at the center of the third surface, and the translational motor is disposed symmetrically on the first surface and the second surface.
  • the shifting motor is symmetrically disposed on the first surface and the second surface, and the translating motor is located at the center of the third surface or symmetrically disposed on the first surface and the second surface; or
  • the shifting motor is arranged at the center of the third surface, and the translating motor is symmetrically arranged on the first surface and the second surface, both of which can push the bracket to generate the rotation that the rotation axis is perpendicular to the first surface, And the moving direction is the translation of the optical axis direction.
  • Both the shift motor and the translation motor are arranged symmetrically on the first and second surfaces or on the center of the third surface, so that the first surface and the second surface are under the same force, so that the bracket is avoided during the translation or rotation process.
  • the first and second surfaces are subjected to different forces to produce deflection and torque.
  • a plurality of the elastic members are symmetrically arranged on the first surface and the second surface;
  • the elastic members provided on the first surface and the second surface both include a translation elastic member and a common elastic member.
  • the elastic coefficient of the translation elastic member along the optical axis direction and the direction of the rotation axis The elastic coefficients are all smaller than the elastic coefficients in the direction of the optical axis; the elastic coefficients of the common elastic member in the direction of the rotation axis are greater than the elastic coefficients in the optical axis direction and the optical axis direction, and the common elastic member
  • the elastic coefficient in the direction parallel to the rotation axis is greater than the elastic coefficient in the direction parallel to the translation motor and the rotation axis;
  • a translation elastic member and a common elastic member are provided on both sides of the first surface and the second surface along the optical axis direction; the translation elastic member is away from the third surface relative to the common elastic member, The common elastic member is closer to the third surface relative to the translation elastic member.
  • the translating elastic member Since the translating elastic member is close to the third surface, the common elastic member is away from the third surface, and the elastic coefficient of the common elastic member parallel to the rotation axis is greater than that of the translating motor and the The elastic coefficient in the direction parallel to the rotation axis, so that when the shifting motor applies a force along the optical axis to the bracket, the deformation of the translating elastic member along the optical axis will be less than that of the common elastic member Deformation in the direction of the optical axis, resulting in rotation with the rotation axis perpendicular to the direction of the first surface.
  • each of the translating elastic member and the common elastic member includes a plurality of etching arms arranged at intervals and connected end to end.
  • the extending direction of the etching arm of the translating elastic member is The optical axis is parallel, and the extending direction of the etching arm of the common elastic member is perpendicular to the first surface, so that the elastic coefficient of the translation elastic member along the optical axis direction and the elastic coefficient of the rotation axis direction are both Less than the elastic coefficient in the direction of the optical axis; the elastic coefficient of the common elastic member in the direction of the rotation axis is greater than the elastic coefficients in the direction of the optical axis and the direction of the optical axis.
  • a plurality of the elastic members may be located at the first One side and the second side are on both sides in the direction of the optical axis; the elastic coefficients of the elastic member in the direction of the optical axis and the direction of the optical axis are smaller than the directions perpendicular to the optical axis and the direction of the optical axis Coefficient of elasticity.
  • the shifting motor Since the shifting motor is disposed on the third surface, the force applied by the shifting motor on the third surface of the bracket is greater than the force on the light emitting surface side.
  • the elastic member When the elastic member is along the direction of the light emitting axis and enters the light
  • the elastic coefficients in the axial direction are both smaller than the elastic coefficients in the direction perpendicular to the optical axis and the optical axis, the rotation of the rotating axis perpendicular to the direction of the first surface will occur.
  • the bracket can be translated in the direction of the optical axis, but it is limited
  • the movement perpendicular to the first surface prevents the bracket from moving in a direction that does not require movement, so as to realize precise control of the movement of the bracket.
  • each of the elastic members includes a plurality of etching arms arranged at intervals and connected end to end.
  • the extending direction of the etching arms is perpendicular to the optical axis and the optical axis, so that the The elastic coefficients of the elastic member in the direction of the optical axis and the direction of the optical axis are both smaller than the elastic coefficients perpendicular to the directions of the optical axis and the optical axis.
  • the magnet includes 2xn sub-magnets, where n is a natural number greater than 0; the N poles and S poles of adjacent sub magnets are opposite, and a position sensor is fixed on each magnet , And the position sensor is located at the junction of the two sub-magnets in the center of the magnet.
  • the position sensor at the junction of the two sub-magnets in the center of the magnet can more accurately obtain the movement information such as the movement distance and movement speed of the bracket relative to the housing, and then obtain it through the position sensor
  • the motion information in the guides the translation motor and the shaft motor to push the movement of the bracket to obtain accurate focusing and anti-shake effects.
  • the magnet is a single magnet, the direction of the N pole of the magnet is opposite to the direction of the S pole of the magnet; the position sensor is fixed on the housing and faces the The side surface of the magnet, the side surface of the magnet is perpendicular to the N-pole orientation direction and the S-pole orientation direction of the magnet.
  • the side of the magnet is a linear region of the magnetic field, and the position change is linearly related to the change in the magnetic field. Therefore, the position sensor is disposed toward the side of the magnet.
  • the optical component is a reflective plane with a single optical axis
  • the elastic member is shaped like a sheet
  • the optical axis is perpendicular to the plane where the elastic member is located.
  • the translation direction is parallel to the optical axis direction
  • the rotation axis direction is perpendicular to the translation direction.
  • both the translation motor and the shaft motor are voice coil motors, and the movable parts of the translation motor and the shaft motor are magnets and are fixed on the bracket;
  • the direction of the N pole and S pole of the movable portion of the translation motor is the same as the direction of the optical axis, and the direction of the N pole and S pole of the movable portion of the shift motor is perpendicular to the optical axis, so that The acting force of the translation motor and the shaft motor on the bracket can make the translation direction parallel to the optical axis direction, and the rotation axis direction perpendicular to the translation direction.
  • the bracket includes a side parallel to the optical axis, the translating motor and the translating motor are arranged side by side along the optical axis, and the translating motor and the translating motor All are embedded in the side.
  • the translation motor and the shaft motor can be as close as possible to the center of the bracket, so that the translation motor can push the bracket Moving in the direction of the optical axis without deflection, the axis-shifting motor can push the bracket to produce the rotation of the rotation axis direction perpendicular to the translation direction without deflection in other directions, so that the movement of the bracket is more accurate.
  • the side includes opposite first side and second side, and a third side connected between the first side and the second side, both the translation motor and the shaft motor Embedded in the third side;
  • a plurality of the elastic members are symmetrically arranged on the first side and the second side;
  • the elastic members provided on the first side and the second side both include a translation elastic member and a common elastic member.
  • the elastic coefficient of the translation elastic member along the optical axis direction and the parallel to the first The elastic coefficient of the direction of the side surface is less than the elastic coefficient of the direction perpendicular to the first side surface; the elastic coefficient of the common elastic member in the direction of the optical axis and the elastic coefficient of the direction perpendicular to the first side surface are less than The elastic coefficient of the direction parallel to the first side, the elastic coefficient of the direction of the common elastic member parallel to the first side is greater than the elastic coefficient of the direction in which the translation elastic member translates to the first side;
  • the translating elastic member and the common elastic member are respectively provided on both sides of the first side and the second side along the optical axis direction; the translating elastic member is closer to the reflecting plane relative to the common elastic member , The common elastic member is away from the reflective plane relative to the translation elastic member.
  • the translation elastic member Since the translation elastic member is closer to the reflection plane relative to the common elastic member, the common elastic member is farther away from the reflection plane relative to the translation elastic member, and the translation motor has a larger elastic coefficient in the direction of the optical axis , And the elastic coefficient of the common elastic member in the direction of the optical axis is small, so that the displacement of the translational elastic member parallel to the direction of the first side surface when the shifting motor gives the bracket a force parallel to the direction of the first side surface Less than the deformation of the common elastic member parallel to the direction of the first side, so that the rotation of the rotation axis is perpendicular to the direction of the first side.
  • each of the translating elastic member and the common elastic member includes a plurality of etching arms arranged at intervals and connected end to end.
  • the extending direction of the etching arm of the translating elastic member is perpendicular to the first side surface
  • the etching arm of the common elastic member is parallel to the first side, so that the elastic coefficient of the translating elastic member in the direction of the optical axis and the elastic coefficient in the direction parallel to the first side are smaller than the The coefficient of elasticity perpendicular to the direction of the first side; the coefficient of elasticity of the common elastic member in the direction of the optical axis and the coefficient of elasticity in the direction perpendicular to the first side are both smaller than those of the direction parallel to the first side Elasticity coefficient.
  • the present application provides a periscope camera module.
  • the periscope camera module includes a first mirror, a lens group, a photosensitive chip, and the lens actuating device.
  • the first mirror and The lens groups are all mounted on the bracket of the lens actuating device, and after being reflected by the first reflector, the light passes through the lens group and is transmitted to the photosensitive chip; the translation motor and The axis-shift motor drives the first mirror and lens group to move to achieve focus adjustment or anti-shake.
  • the translation motor drives the first mirror and the lens group to move, thereby changing the distance between the lens group and the photosensitive chip, thereby achieving focus adjustment
  • the shift motor drives the first mirror and the lens group to rotate , Change the direction of the optical axis to compensate for the camera module's jitter, thereby achieving anti-shake.
  • the lens actuation device is further provided between the lens group and the photosensitive chip of the periscope camera module, and between the lens group and the photosensitive chip
  • a second mirror is installed on the lens actuating device, and the second mirror is used to reflect the light passing through the lens group to the photosensitive chip.
  • focusing and anti-shake are achieved by the translation and rotation of the lens actuating device mounted with the second mirror and the lens actuating device mounted with the first mirror.
  • a second mirror is further provided between the lens group and the photosensitive chip of the periscope camera module, and the second mirror is used to pass the lens group Light is reflected to the photosensitive chip.
  • the present application also provides another periscope camera module
  • the periscope camera module includes a first reflector, a lens group, a photosensitive chip, a second reflector, and the lens actuating device
  • the second mirror is mounted on a bracket of the lens actuating device; the first mirror is used to reflect light to the lens group; the lens group is used to reflect the first mirror The light is transmitted to the second mirror; the second mirror is used to transmit the light transmitted by the lens group between the photosensitive chips, the translation motor and the shaft of the lens actuating device
  • the motor drives the mirror and lens group to move to achieve focus adjustment or anti-shake.
  • the present application provides a shooting device including a casing, a control unit, and the periscope shooting module, the periscope shooting module is installed in the casing; the casing A light entrance hole is provided, and light enters the periscope shooting module through the light entrance hole, and the optical axis of the lens group of the periscope shooting module intersects the axis of the light entrance hole.
  • the first reflector is located between the light entrance hole and the lens group, and is used to reflect the light entering the light entrance hole to the lens group; the translation motor, the shift shaft motor and The photosensitive chips are electrically connected to the control unit.
  • the control unit is used to receive and analyze the image of the photosensitive chip to determine an appropriate corrected motion value, and send a signal to the corresponding translation motor and/or Or the shifting shaft motor, so that the shifting motor and/or the shifting motor drives the bracket and the optical components mounted on the bracket to translate and/or rotate.
  • the optical axis of the lens group of the periscope camera module intersects the axis of the light entrance hole, and the light entering the light entrance hole is reflected to the lens group through the first reflector in.
  • the light entrance hole is generally provided in the thickness direction of the photographing device. Since there is no need to arrange the optical axis of the lens group coaxially with the axial direction of the light entrance hole, the optical axis direction of the lens group can be avoided
  • the size limits the size of the shooting module in the thickness direction, which facilitates the thinning of the shooting module.
  • the focusing and anti-shake of the periscope shooting module in the shooting module can enable the shooting device to shoot a picture with better definition.
  • FIG. 1 is a schematic structural diagram of a lens actuating device according to an embodiment of the application.
  • FIG. 2 is a schematic top view of the lens actuating device of FIG. 1;
  • FIG. 3 is a schematic structural diagram of a lens actuating device according to another embodiment of the application.
  • FIG. 4 is a schematic top view of the lens actuating device of FIG. 3;
  • FIG. 5 is a schematic structural diagram of a lens actuating device according to another embodiment of the application.
  • FIG. 6 is a schematic structural diagram of a translation motor and a position sensor in an embodiment of the application.
  • FIG. 7a is a schematic structural diagram of a shared elastic member according to an embodiment of the application.
  • FIG. 7b is a schematic structural diagram of a translation elastic member according to an embodiment of the application.
  • FIG. 8 is a schematic structural diagram of a lens actuating device according to another embodiment of the present application.
  • FIG. 9 is a schematic plan view of the lens actuating device of FIG. 8.
  • FIG. 10 is a schematic top view of the lens actuating device according to another embodiment of this application.
  • FIG. 11 is a schematic structural diagram of a lens actuating device according to another embodiment of the application.
  • FIG. 12 is a schematic top view of the lens actuating device of FIG. 11;
  • FIG. 13 is a schematic structural diagram of a lens actuating device according to another embodiment of this application.
  • FIG. 14 is a schematic structural diagram of a lens actuating device according to another embodiment of this application.
  • FIG. 15 is a schematic diagram of a split structure of the lens actuating device of the embodiment shown in FIG. 14;
  • 16 is a schematic diagram of an imaging principle of a periscope lens module according to an embodiment of the application.
  • FIG. 17 is a schematic structural view of the periscope lens module of the embodiment shown in FIG. 16;
  • FIG. 18 is a schematic diagram of an imaging principle of a periscope lens module according to another embodiment of this application.
  • FIG. 19 is a schematic diagram of an imaging principle of a periscope lens module according to another embodiment of this application.
  • FIG. 20 is a schematic diagram of an imaging principle of a periscope lens module according to another embodiment of this application.
  • connection may be a fixed connection, It can also be a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or can communicate with each other; it can be directly connected, or it can be indirectly connected through an intermediary, it can be the internal connection of two components or two Interaction of the two components.
  • fixing may be direct fixation or fixation through an intermediate medium.
  • installation may be detachable installation or fixed installation; it may also be direct installation or indirect installation through an intermediate medium.
  • the present application provides a shooting device, and the shooting device may be various electronic devices that can be used for shooting, such as mobile phones, tablets, and card cameras.
  • the shooting equipment includes a shooting module to shoot through the shooting module.
  • the shooting module includes a lens actuating device, an optical component, and a photosensitive chip, and the optical component is mounted on the lens actuating device.
  • the lens actuating device is used to drive or rotate the optical component mounted on the lens actuating device to achieve focusing and anti-shake of the camera module including the lens actuating device and the optical component.
  • the lens actuating device includes a housing and a bracket, a plurality of elastic members, a translation motor and a shaft motor.
  • the bracket is accommodated in the housing, and the optical component is fixed to the bracket.
  • the optical component refracts or reflects light to change the direction of light propagation, so that the light irradiates the photosensitive chip and obtains a clear image.
  • a plurality of the elastic members are connected between the housing and the bracket, are used to support the bracket in the housing, and provide a movement space for the movement of the bracket in the housing.
  • the translating motor and the shift shaft motor are both located between the housing and the bracket, and the translating motor and the shift shaft motor both include a fixed portion and move relative to the fixed portion Activities department.
  • One of the fixed part and the movable part of the translatory motor is fixed to the bracket and the other is fixed to the housing, by relative movement of the fixed part and the movable part of the translatory motor
  • the bracket is driven to move in a translation direction relative to the housing.
  • One of the driving part and the movable part of the shift shaft motor is fixed to the bracket, and the other is fixed to the casing.
  • the shift shaft motor is used to connect with the plurality of elastic members. Cooperate to drive the bracket to rotate relative to the housing about a rotation axis. In this application, the rotation axis is parallel to the translation direction or perpendicular to the translation direction.
  • a translation motor and a shaft-shift motor are provided on the bracket of the lens actuating device, so as to drive the translation of the optical component fixed to the bracket by the translation motor, to achieve the inclusion of the optical component And the focusing and anti-shake of the shooting module of the lens actuating device.
  • the shifting motor drives the rotation of the optical component fixed to the bracket to drive the shifting axis of the optical component located on the bracket, thereby compensating the shooting module including the optical component and the lens actuating device when shooting The generated jitter realizes the anti-shake of the shooting module.
  • the translation motor and the shaft motor are independent entities, so that the translation motor and the shaft motor can work at the same time, which can simultaneously drive the translation and the shaft of the bracket, and the lens can be realized at the same time. Focusing and anti-shake, with higher control efficiency, to quickly get clear images.
  • the rotation of the bracket can be realized by the cooperation of the shaft-shifting motor and the elastic member. There is no need to set two or two symmetrical motors around the bracket, and there is no need to control the difference in the driving force of the bracket by the opposite motor. The rotation is realized, so that the number of motors around the bracket can be reduced, and the volume occupied by the lens actuating device can be reduced. In addition, since the number of motors is reduced, the control of the motors can be simplified and the control efficiency can be improved.
  • the elastic members are all two-degree-of-freedom elastomers.
  • the two-degree-of-freedom elastic body means that the elastic coefficient of the elastic member in two orthogonal directions is smaller than the elastic coefficient in the other direction, so that the elastic member in the three orthogonal directions Two of them are more easily deformed than the other.
  • the translation direction of the bracket is parallel to the first direction, and the elastic coefficient of the first direction is smaller than that of the second direction or the third direction; the direction of the rotation axis is parallel to the second direction,
  • the elastic coefficients of the second direction and the third direction are different, and according to different actual requirements, the elastic coefficient of the elastic member along the second direction may be greater than the elastic coefficient of the third direction, It may be smaller than the elastic coefficient in the third direction.
  • elastic members with different degrees of freedom are selected to be used at different positions of the bracket, so that when the shifting motor generates a force on the bracket, the elastic members provided at different positions of the bracket.
  • the elastic coefficient of the direction of the acting force of the shift shaft motor on the bracket is different, so that the bracket rotates, so that it is not necessary to control the driving force of the motor at different positions of the bracket to drive the bracket to achieve the rotation of the bracket, simplifying the shift shaft motor Control, improve efficiency, and can avoid rotation of the bracket in the non-rotation direction or rotation in the non-translation direction.
  • the lens actuation device further includes a plurality of position sensors, and the position sensors correspond one-to-one to the shift-axis motor and the translation-type motor.
  • the closed loop refers to the use of feedback null mechanism, which has the ability to automatically correct the deviation of the controlled variable, can correct errors caused by component parameter changes and external disturbances, and has high control accuracy.
  • the position sensor is a Hall sensor. The Hall sensor can measure the magnetic field strength at different positions, and feed back the measured magnetic field strength to the drive controller.
  • the drive controller controls the translation motor and/or the shaft motor according to the information obtained by the position sensor. Direction and speed of movement to achieve more precise focusing and anti-shake operation.
  • the lens actuating device 100 includes a housing (not shown in the figure), and a bracket 20.
  • the housing includes a receiving cavity.
  • the bracket 20, the plurality of elastic members 30, the translation motor 40 and the shifting motor 50 are all received in the receiving cavity.
  • the housing is used to protect the structure provided inside. It can be understood that, when the lens actuating device 100 is provided in a photographing device, the housing 100 may be fixed with the housing of the photographing device, or may be the housing of the photographing device.
  • the optical component 60 is mounted on the bracket 20 and moves with the bracket 20.
  • the “installation” in this application may be a direct installation or an indirect installation.
  • the optical component 60 is first installed in a fixing bracket 60a, and then the fixing bracket 60a is fixed on the bracket 20, so that the optical component 60 and the bracket 20 are indirectly mounted.
  • the optical component 60 includes a light incident surface 61 and a light exit surface 62 at an angle to the light incident surface 61, the light incident surface 61 has an light incident axis 61a perpendicular to the light incident surface 61, and the light incident axis 61a Passing the center of the light incident surface 61; the light exit surface 62 has a light exit axis 62a perpendicular to the light exit surface 62, and the light exit axis 62a passes through the center of the light exit surface 62.
  • the optical axis 61a and the optical axis 62a are not actually existing axes, that is, the optical axis 61a and the optical axis 62a are virtual lines.
  • the light incident surface 61 and the light exit surface 62 of the optical component 60 form an angle, that is, the optical component 60 can change the propagation direction of the light passing therethrough.
  • the bracket 20 includes a first surface 21 and a second surface 22 that are oppositely disposed, and a third surface 23 connected between the first surface 21 and the second surface 22, and the third surface 23 is away from The light exit surface 62 of the optical component 200.
  • the shift shaft motor 50 is symmetrically disposed on the first surface 21 and the second surface 22. In this embodiment, there are two shifting motors 50, which are respectively disposed on the sides of the first surface 21 and the second surface 22 close to the third surface 23.
  • the translation motor 40 is located at the center of the third surface 23 or symmetrically disposed on the first surface 21 and the second surface 22.
  • the translation motor 40 and the shaft motor 50 located on the same surface are located along The optical axis directions are stated side by side.
  • the translation motor 40 is symmetrically disposed on the first surface 21 and the second surface 22, and is disposed near the light exit surface 62.
  • FIGS. 3 and 4 illustrate a lens actuating device 200 according to another embodiment of the present application.
  • the lens actuating device 200 in the embodiment of FIG. 3 is the same as that of the embodiment described in FIG. 1.
  • the difference of the lens actuating device 100 is that there is one translation motor 40, and the translation motor 40 is disposed on the central surface of the third surface 23. It can be understood that there may be a plurality of translation motors 40.
  • the plurality of translation motors 40 are arranged side by side on the third surface 23 in the direction of the first surface 21 to the second surface 22.
  • the center of the overall structure after the parallel translation motor 40 is arranged side by side coincides with the center of the third surface 23, so that the support 20 has the same force on the side where the first surface 21 is located and the side where the second surface 22 is located, to avoid uneven force Produces greater torque and tilt in the non-rotating direction.
  • the translation motor 40 and the shaft motor 50 are both voice coil motors.
  • the voice coil motor includes a magnet and a coil moving relative to the magnet. By passing different currents into the coil, The magnitude of the Loren magnetic force between the coil and the magnet is controlled to control the force pushing the bracket 20 relative to the housing according to actual needs.
  • the translation motor 40 includes a magnet 41 and a coil 42 that moves relative to the magnet 41, wherein the magnet 41 is a movable part of the translation motor 40 and is fixed on the bracket 20; the coil 42 is the translation motor 40 fixed part.
  • the shaft-shifting motor 50 includes a magnet 51 and a coil 52 that moves relative to the magnet 51, wherein the magnet 51 is a movable part of the shaft-shifting motor 50 and is fixed on the bracket 20; the coil 42 is a translation motor 40 Fixed part.
  • the directions of the N pole and S pole of the magnet 41 are the same as the direction of the optical axis 62a, so that the Loren magnetic force along the direction of the optical axis 62a is generated between the magnet 41 and the coil 42.
  • the direction of the N pole and S pole of the movable part of the shifting motor 50 is the same as the direction of the optical axis 61a, so that the Loren between the magnet 51 and the coil 52 is generated along the direction of the optical axis 61a
  • the magnetic force cooperates with the elastic member 30 to produce the rotation of the rotation axis perpendicular to the first surface 21.
  • the rotation axis is perpendicular to the light entrance axis and the light exit axis.
  • the lens actuating device 100 drives the optical component 200 to move in the direction of the optical axis, and can adjust the distance between the optical component 200 and the photosensitive chip 1003, that is, it can Adjust the image distance so that the camera module can focus.
  • the rotation axis is perpendicular to the light entrance axis and the light exit axis, so that the holder 20 can drive the optical component 200 to realize anti-shake in the direction of the light exit axis.
  • the magnets include 2xn sub-magnets 411, where n is a natural number greater than 0.
  • the magnet includes two sub-magnets 411.
  • the N poles and S poles of the adjacent sub-magnets 411 are opposite.
  • the magnet includes a first surface fixed on the support, and a second surface opposite to the first surface, the coil faces the second surface, and two adjacent sub magnets 411 face the first surface The magnetic poles on the two surfaces are opposite.
  • each of the sub-magnets 411 is independent. It can be understood that, in other embodiments of the present application, the sub-magnet of the magnet may be obtained by a certain magnetization method for a magnet.
  • the magnet is a single-sided bipolar pair magnetized magnet, that is, the magnet is formed into two parts with opposite magnetic poles by a certain magnetization method, wherein the two with opposite magnetic poles The part is equivalent to two sub-magnets 411.
  • a position sensor 70 is fixed on each of the magnets, and the position sensor 70 is located at the junction of two sub-magnets 411 in the center of the magnet. Because the vicinity of the junction of the two sub-magnets 411 in the center of the magnet is a linear region of the magnetic field, the position change relative to the coil has a linear relationship with the magnetic field change, and the other positions have a poor linear relationship, and the position detection effect is not good.
  • the magnet may be a single magnet, and the direction of the N pole of the magnet is opposite to the direction of the S pole of the magnet.
  • the position sensor is fixed on the housing and faces the side of the magnet, and the side of the magnet is perpendicular to the direction of the N pole and the direction of the S pole of the magnet.
  • FIG. 5 is a lens actuation device 300 of another embodiment of the present application.
  • the difference between the lens actuation device 300 of the embodiment of FIG. 5 and the lens actuation device 200 of the embodiment of FIG. 3 is the translation
  • the magnet 41 of the electric motor 40 is a single magnet, and the N pole face of the magnet 41 abuts on the third face 23.
  • the magnet 41 of the translation motor 40 of the lens actuating device 300 is a single cylindrical magnet, the two sides of the magnet 41 in the axial direction are the N pole surface and the S pole surface, and the side surfaces of the magnet 41 are the N pole surface and the S pole The side between the faces.
  • the coil 42 of the translation motor 40 of the lens actuating device 300 is a toroidal coil.
  • the toroidal coil ring is disposed outside the side of the cylindrical magnet. After the coil is energized, a Loren magnetic force along the axial direction of the magnet is generated between the magnet and the magnet 41 so that The coil 42 generates movement in the axial direction of the magnet.
  • an induction magnet 43 is fixed on the side of the magnet 41
  • the position sensor 70 is fixed on the housing, and is opposed to the induction magnet 43 to sense the position change of the induction magnet 43, thereby Obtain parameters such as the speed of movement of the bracket 20 relative to the housing and the distance moved.
  • the outer surface of the magnet 41 is covered with a magnetic conductive shell 44, which plays a role of magnetic permeability and improves the main magnetic flux of the magnet 41.
  • the elastic member 30 is in a sheet shape, and the optical axis 61 a is parallel to the plane where the elastic member 30 is located, that is, the elastic member 30 is perpendicular to the first surface 21 Settings.
  • the plane of the elastic member 30 is parallel to the optical axis 61a, so that the elastic member 30 cannot be disposed in the direction of the optical axis 61a, thereby avoiding the elastic member 30 from increasing the lens actuating device 100 along the optical axis 61a The thickness of the direction.
  • the elastic member 30 is a two-degree-of-freedom elastic member, that is, the elastic coefficient of the elastic member 30 in two of the three orthogonal directions is smaller than the elastic coefficient in the other direction , So that the elastic member 30 is more easily deformed in two of the three orthogonal directions than in the other direction.
  • a plurality of the elastic members 30 are symmetrically arranged on the first surface 21 and the second surface 22, and are close to the third on the first surface 21 and the second surface 22 Both the side of the surface 23 and the side away from the third surface 23 are provided with elastic members 30, so that the bracket 20 is stably supported in the housing.
  • the elastic members 30 which are symmetrically disposed on the first surface 21 and the second surface 22 in pairs. Furthermore, in the present embodiment, the first direction optical axis 62a, the second direction is a direction perpendicular to the first surface 21, and the third direction is the direction of the optical axis 61a.
  • the elastic members 30 provided on the first surface 21 and the second surface 22 each include a translation elastic member 30a and a common elastic member 30b.
  • the elastic coefficient of the translation elastic member 30a in the direction of the optical axis 62a and the elastic coefficient in the direction of the rotation axis are both smaller than the elastic coefficient of the optical axis 61a, that is, the first direction and the second direction of the translation elastic member 30a
  • the elastic coefficient of is smaller than the elastic coefficient of the third direction; the elastic coefficient of the common elastic member 30b along the rotation axis direction is greater than the elastic coefficients of the optical axis direction and the optical axis direction, that is, the common elastic member 30b is first
  • the elastic coefficients in the direction and the third direction are smaller than those in the second direction.
  • the elastic coefficient of the translation elastic member 30a parallel to the direction of the optical axis 61a is greater than the elastic coefficient of the common elastic member 30b parallel to the direction of the optical axis 61a.
  • a translation elastic member 30 and a common elastic member 30 are respectively provided; the translation elastic member 30 is away from the common elastic member 30 In the third surface 23, the common elastic member 30 is closer to the third surface 23 relative to the translating elastic member 30.
  • the shifting motor 50 applies a force to the bracket 20 along the optical axis 61a
  • the elastic coefficient of the translation elastic member 30a in the first direction is greater than the elastic coefficient of the common elastic member 30b in the first direction
  • the translation elastic member The amount of deformation in the third direction of 30a is smaller than the amount of deformation in the third direction of the common elastic member 30b, thereby generating rotation about the second direction (perpendicular to the first surface 21) as the rotation axis.
  • the rotation of the bracket 20 is realized by the cooperation of the shifting motor 50 and the elastic member 30, and it is not necessary to separately control the pushing force of the motors at different positions of the bracket to the bracket to achieve the rotation of the bracket, simplifying the shifting of the shaft Control of the motor 50 improves efficiency.
  • each of the translating elastic members 30a and the common elastic member 30b includes a plurality of etching arms 31 spaced apart and connected end to end.
  • the translating elastic members 30 The extending direction of the etching arm 31 is parallel to the optical axis, and the extending direction of the etching arm 31 of the common elastic member 30 is perpendicular to the first surface 21, so that the translating elastic member 30 is along the
  • the elastic coefficient in the direction of the optical axis and the elastic coefficient in the direction of the rotating axis are both smaller than the elastic coefficient in the direction of the optical axis 61a; the elastic coefficient of the common elastic member 30 in the direction of the rotating axis is greater than the optical axis Elastic coefficients in the direction of 61a and in the direction of the optical axis 62a.
  • the elastic member 30 is a metal member, and a plurality of etching arms 31 connected end to end are obtained by bending a linear metal spring piece into a wave shape.
  • the etching arm 31 may be obtained by etching a metal plate.
  • the shift motor is disposed at the center of the third surface
  • the translation motor is symmetrically disposed on the first surface and the second surface, and can also push the bracket to generate the rotation axis as
  • the rotation perpendicular to the first surface and the moving direction are translations in the direction of the optical axis.
  • FIGS. 8 and 9 illustrate a lens actuating device 400 according to an embodiment of the present application. The difference between the lens actuating device 400 and the lens actuating device 100 lies in: the shift axis
  • the motor 50 is located in the center of the third surface 23.
  • the force exerted by the shifting motor 50 on the bracket 20 is located on the third surface 23 and is parallel to the optical axis 62a, so that the shifting motor 50 exerts an effect on the third surface 23
  • the force is greater than the force on the light-emitting surface 62 side, so that the bracket 20 can generate a rotation perpendicular to the first surface 21 in the direction of the rotation axis.
  • the bracket 20 can be generated perpendicular to the first surface 21 with the rotation axis direction Turn.
  • the elastic members 30 provided on the first surface 21 and the second surface 22 may both be a common elastic member 30b, which can avoid the limitation of the elastic member 30 on the translation and rotation of the bracket 20. It can be understood that, in this embodiment, the elastic member 30 on the first surface 21 and the second surface 22 may also have the same structure and position as the elastic member 30 in the lens actuating device 100.
  • the translating motor and the shifting shaft motor are both voice coil motors, and the moving parts of the translating motor and the shifting motor are magnets, and both are fixed to the bracket Above; the N and S pole directions of the fixed part of the translational motor 40 are perpendicular to the optical axis and the optical axis, and the N, S pole directions of the fixed part of the shifting motor and the optical axis In the same direction.
  • the direction of the N pole and S pole of the movable part of the translation motor is perpendicular to the optical axis and the optical axis, so that the direction of the Loren magnetic force between the magnet and the coil of the translation motor is perpendicular to the direction of the optical axis And the direction of the optical axis to push the bracket to produce a translation perpendicular to the optical axis and the optical axis.
  • the direction of the N pole and S pole of the movable part of the shifting motor is the same as the direction of the optical axis, so that the direction of the Loren magnetic force between the magnet and the coil of the shifting motor is the optical axis Direction to push the bracket to produce a rotation axis direction perpendicular to the light exit axis and the light exit axis rotation. That is, in these embodiments, the translation direction in which the translation motor drives the bracket to move is parallel to the rotation axis direction in which the displacement motor drives the bracket to rotate.
  • the shift shaft motor is symmetrically disposed on the first surface and the second surface, and the translation motor is located in the center of the third surface or symmetrically disposed on the first surface and the second surface Surface; or, the shifting motor is arranged at the center of the third surface, and the translational motor is symmetrically arranged on the first surface and the second surface, both of which can push the bracket to generate a rotation axis perpendicular to the first
  • the rotation of one side and the direction of movement are translations in the direction of the optical axis.
  • Both the shift motor and the translation motor are arranged symmetrically on the first and second surfaces or on the center of the third surface, so that the first surface and the second surface are under the same force, so that the bracket is avoided during the translation or rotation process.
  • the first and second surfaces are subjected to different forces to produce deflection and torque.
  • FIG. 10 shows a lens actuation assembly 500 of the present application.
  • the translation direction of the bracket 20 in the lens actuation assembly 500 is parallel to the direction of the rotation axis of the bracket 20.
  • the difference between the lens actuation assembly 500 and the lens actuation assembly 100 described in FIG. 1 is that the direction from the N pole to the S pole of the translation motor 40 is perpendicular to the optical axis 62a and the optical axis 61a, wherein the translation The translation direction of the motor 20 pushing the bracket 20 is parallel to the direction from the N pole to the S pole of the translation motor 40.
  • the planes of the translating elastic members 30a and the common elastic member 30b are parallel to the optical axis 62a to ensure that the elastic coefficients of the translating elastic members 30a and the common elastic member 30b in the translation direction are small, so as to avoid the translating elastic members The limitation of the translation process of the bracket 20 by the 30a and the common elastic member 30b.
  • FIGS. 11 and 12 illustrate a lens actuation assembly 600 of the present application.
  • the difference between the lens actuation assembly 600 and the lens actuation assembly 500 is that: the shifting motor 50 is provided In the center of the third surface 23, the translation motor 40 is symmetrically disposed on the first surface 21 and the second surface 22.
  • the elastic members 30 of the lens actuating assembly 600 are all common elastic members 30b, that is, the elastic coefficient of the elastic member 30 in the translation direction of the bracket and the direction perpendicular to the translation axis and the rotation axis is smaller than the rotation axis direction Coefficient of elasticity.
  • the elastic coefficients of the elastic member 30 in the direction of the optical axis 62a and the optical axis 61a are both smaller than the elastic coefficients perpendicular to the optical axis 62a and the optical axis 61a. Since the shifting motor 50 is disposed on the third surface 23, the force applied by the shifting motor 50 on the third surface 23 side of the bracket 20 is greater than the force on the light emitting surface 62 side.
  • the bracket 20 can move along the optical axis 62a The translation is performed in the direction, but its movement perpendicular to the first surface 21 is restricted to prevent the bracket 20 from moving in a direction that does not require movement, so as to achieve precise control of the movement of the bracket 20.
  • the common elastic members each include a plurality of etching arms 31 spaced apart and connected end to end.
  • the extending direction of the etching arms 31 is perpendicular to the optical axis 61a and the optical axis 62a, so that the The elastic coefficients of the elastic member 30 in the direction of the optical axis 62a and the direction of the optical axis 61a are both smaller than the elastic coefficients perpendicular to the direction of the optical axis 62a and the optical axis 61a.
  • FIG. 13 shows another lens actuation device 700 of the present application.
  • the difference between the lens actuation device 700 and the lens actuation device 600 lies in: the magnet of the translation motor of the lens actuation device 700 It is the same single magnet as the translation motor in the lens actuating device 300.
  • the present application also provides a lens actuating device.
  • the optical components of the lens actuating device include a single reflection plane and a single optical axis. That is, both the light incident surface and the light emitting surface of the optical component are the reflection planes, and the light rays enter the reflection plane and are reflected by the reflection plane before exiting.
  • the central axis of the reflection plane is the optical axis. It can be understood that the optical axis is a virtual axis, not an actual axis.
  • FIGS. 14 and 15 illustrate another lens actuation device 800 of the present application.
  • the optical component 60 of the lens actuation device 800 includes a single reflection plane 64 with a single Optical axis 64a.
  • the elastic member 30 is in a sheet shape, and the optical axis 64a is perpendicular to the plane where the elastic member 30 is located, so that the elastic coefficient of the elastic member 30 in the direction of the optical axis 64a is small, so that the bracket 20 can be easily Movement in the direction of the optical axis 64a.
  • the difference between the lens actuation device 800 and the lens actuation device 100 in FIG. 1 is that the translation motor 40 and the shaft motor 50 are both one, and the translation motor 40 It is arranged side by side with the axis-shifting motor 50 in the direction of the optical axis 64a, and is embedded on the side of the bracket 20 parallel to the optical axis 64a.
  • the side of the bracket 20 parallel to the optical axis 64a includes an opposing first side 20a and a second side 20b, and a third side 20c connected between the first side 20a and the second side 20b.
  • Two receiving grooves 24 are recessed in the third side surface 20c.
  • the translating motor 40 and the shaft-moving motor 50 are respectively received in one receiving groove 24, so that the translating motor 40 and the shaft-moving type
  • the motor 50 is embedded in the third side 20c, so that the translational motor 40 and the translational motor 50 are close to the geometric center of the bracket 20, so as to avoid the translational motor 40 or the translational motor 50 to the bracket 20
  • the applied force deviates from the required position, thereby preventing the bracket 20 from generating large torque and tilt angle in the non-rotation direction.
  • the elastic member 30 is disposed on the first side surface 20a and the second side surface 20b, and is disposed perpendicular to the moving direction.
  • the elastic members 30 provided on the first side surface 20a and the second side surface 20b both include a translation elastic member 30a and a common elastic member 30b having the same structure as in the lens actuating device 100 .
  • the elastic coefficient of the translation elastic member 30a in the direction of the optical axis 64a and the elastic coefficient in the direction parallel to the first side 20a are both smaller than the elastic coefficient in the direction perpendicular to the first side 20a; the common The elastic coefficient of the elastic member 30b in the direction of the optical axis 64a and the elastic coefficient in the direction perpendicular to the first side surface 20a are both smaller than the elastic coefficient in the direction parallel to the first side surface 20a.
  • the translating elastic member 30a and the common elastic member 30b are respectively disposed on both sides of the first side surface 20a and the second side surface 20b in the direction of the optical axis 64a.
  • the translation elastic member 30a is closer to the reflection plane 64 relative to the common elastic member 30b, and the common elastic member 30b is away from the reflection plane 64 relative to the translation elastic member 30a.
  • the translation direction of the bracket 20 of the lens actuating device 800 relative to the housing 10 is parallel to the direction of the optical axis 64a, and the rotation axis of the bracket 20 relative to the housing 10 is
  • the translation direction is vertical, so that when the lens actuating device 100 is applied to the camera module, the bracket 20 can be shifted along the translation direction to achieve focusing, and the bracket 20 can be rotated about the rotation axis to achieve the camera module's axis. Thereby compensating for jitter and achieving anti-shake.
  • the translating elastic member 30a is closer to the reflecting plane relative to the common elastic member 30b, the common elastic member 30b is away from the reflecting plane relative to the translating elastic member 30a, and the translating motor 40 is in the direction of the optical axis 64a It has a large elastic coefficient, and the common elastic member 30b has a small elastic coefficient in the direction of the optical axis 64a, so that the shifting motor 50 gives the bracket 20 a force parallel to the direction of the first side 20a, which translates the elasticity
  • the deformation of the member 30a parallel to the direction of the first side 20a is smaller than the deformation of the common elastic member 30b parallel to the direction of the first side 20a, so that the rotation of the rotation axis is perpendicular to the direction of the first side 20a.
  • each of the translating elastic member 30a and the common elastic member 30b includes a plurality of etching arms 31 arranged at intervals and connected end to end.
  • the extending direction of the etching arm 31 of the translating elastic member 30a is perpendicular to the first side 20a, and the etching arm 31 of the common elastic member 30b is parallel to the first side 20a, so that the translating elastic member
  • the elastic coefficient of 30a along the direction of the optical axis 64a and the elastic coefficient of the direction parallel to the first side surface 20a are both smaller than the elastic coefficient of the direction perpendicular to the first side surface 20a.
  • the elastic coefficient of the common elastic member 30b in the direction of the optical axis 64a and the elastic coefficient of the direction perpendicular to the first side surface 20a are both smaller than the elastic coefficient of the direction parallel to the first side surface 20a.
  • FIG. 16 shows a periscope camera module 1000 according to an embodiment of the present application.
  • the direction of the arrow in the figure indicates the propagation path of light inside the periscope camera module 1000.
  • the periscope camera module 1000 includes a first mirror 1001, a lens group 1002, a photosensitive chip 1003, and the lens actuating device in any of the above embodiments.
  • the optical component 60 mounted on the bracket 20 of the lens actuating device includes the first mirror 1001 and the lens group 1002.
  • the bracket 20, the optical component 60 and the photosensitive chip 1003 are all accommodated in the housing 80 of the lens actuating device, and the photosensitive chip 1003 is fixed in the housing 80.
  • the housing 80 is provided with a light entrance hole 81, the first reflection passes through the light entrance hole 81 of 1001, and the light entering the light entrance hole 81 is reflected by the first reflector 1001 and then passes through the lens group 1002 and Transfer to the photosensitive chip 1003.
  • the lens actuating device in the periscope camera module 1000 is the lens actuating device 100 shown in FIG. 1, and the translation motor of the lens actuating device 100 40 and the shifting motor 50 drive the first mirror 1001 and the lens group 1002 to achieve focus adjustment or anti-shake.
  • the translation motor 40 drives the first mirror 1001 and the lens group 1002 to move in a direction parallel to the optical axis 62a, thereby changing the distance between the lens group 1002 and the photosensitive chip 1003, thereby achieving focus adjustment.
  • the axis-shift motor 50 drives the first mirror 1001 and the lens group 1002 to rotate perpendicular to the rotation axis of the first surface 21, so that the optical axis direction of the lens group 1002 changes to compensate for the shake of the periscope camera module 1000, thereby Achieve anti-shake.
  • the lens actuation device in the periscope camera module 1000 is the lens actuation device 600 shown in FIG. 11 or the lens actuation shown in FIG. 13
  • the translation direction of the translation motor 40 to drive the bracket 20 to translate is the same as the direction of the rotation axis of the translation motor 50 to drive the bracket 20 to rotate.
  • the translation motor 40 drives the first mirror 1001 and the lens group 1002 mounted on the bracket 20 to move in a direction perpendicular to the first surface 21, thereby changing the position of the optical axis of the lens group 1002 to achieve the perpendicularity to the first Anti-shake in the direction of the surface 21;
  • the shifting motor 50 drives the first mirror 1001 and the lens group 1002 to rotate perpendicular to the rotation axis of the first surface 21, so that the direction of the optical axis 64a changes to achieve the direction parallel to the first surface 21 Anti-shake. Therefore, in the present application, by providing different types of lens actuating devices in the periscope camera module 1000, it is possible to achieve focus and image stabilization or image stabilization in multiple degrees of freedom.
  • the first reflector 1001 is a triangular lens, which is indirectly fixed on the bracket 20.
  • the triangular lens 63 includes a light entrance surface 63, a light exit surface 64, and a reflection surface 65 connected to each other.
  • the light incident surface 63 of the triangular lens is parallel to the light incident surface 61 of the optical component 60
  • the light emitting surface 64 of the triangular lens is parallel to the light emitting surface 62 of the optical component 60, that is, the light emitting surface 64 of the triangular lens
  • the smooth surface 63 is vertical.
  • the angle between the reflecting surface 65 of the triangular lens, the light emitting surface 64 and the light incident surface 63 is 45°, so that the light incident from the light incident surface 63 is reflected by the reflection surface 65 and then exits from the light emitting surface 64.
  • the first reflecting mirror 1001 is first fixed on a fixing frame 60a, and the fixing frame 60a is fixed in the bracket 20.
  • the lens group 1002 is also fixed on the fixing frame 60a and located at the light exit surface 62 of the first reflector 1001, so that the light reflected by the first reflector 1001 enters the lens group 1002.
  • the lens group 1002 includes a plurality of lenses, and the light incident on the lens group 1002 is refracted by the plurality of lenses in the lens group 1002, and then the light is projected onto the photosensitive chip 1003.
  • the photosensitive chip 1003 is located at a position of the lens group 1002 facing away from the first reflecting mirror 1001, so that light emitted from the lens group 1002 is projected onto the photosensitive chip to form an image. It can be understood that, in other embodiments, the first reflection 1001 and the lens group 1002 can also be directly fixed in the bracket 20.
  • a plano-convex lens 1006 is laminated on the light incident surface 63 of the first reflector 1001.
  • the plano-convex lens 1006 is used to gather more light from the outside into the periscope camera module to obtain a clearer image.
  • FIG. 18 shows another periscope camera module 2000 of the present application.
  • the difference between the periscope camera module 2000 and the periscope camera module 1000 lies in: the lens group 1002
  • a lens actuating device is also provided between the photosensitive chip 1003, and a second reflecting mirror 1005 is installed on the lens actuating device between the lens group 1002 and the photosensitive chip 1003.
  • the second mirror 1005 is used to reflect the light passing through the lens group to the photosensitive chip 1003.
  • the translation and rotation of the lens actuating device 100 mounted with the second mirror 1005 and the lens actuating device 100 mounted with the first mirror 1001 together achieve focusing and image stabilization.
  • the lens actuating device equipped with the second reflection channel may be the lens actuating device of any one of the embodiments described above.
  • the lens actuating device equipped with the second reflecting mirror 1005 is the lens actuating device 800 shown in FIG. 14, and the second reflecting mirror 1005 is a planar reflecting mirror with a single reflecting plane.
  • FIG. 19 shows a periscope camera module 3000 according to another embodiment of the present application.
  • the difference between the periscope camera module 3000 and the periscope camera module 1000 is that: A second mirror 1006 is further provided between the lens group 1002 and the photosensitive chip 1003 of the camera module 3000, and the second mirror 1006 is fixed to the housing 10 of the lens actuation device, that is, relative to the photosensitive
  • the chip 1003 is fixed so that the light passing through the lens group 1002 is reflected by the second mirror 1006 to the photosensitive chip 1003, thereby reducing the size of the periscope camera module 3000 in the optical axis direction of the lens group 1002 .
  • FIG. 20 shows a periscope camera module 4000 according to another embodiment of the present application.
  • the difference between the periscope camera module 4000 and the periscope camera module 2000 is:
  • the camera module 3000 includes a lens actuating device having only a fixed second mirror 1005, the first mirror 1001, the lens group 1002, and the photosensitive chip 1003 are fixed to the housing, that is, the first mirror 1001, the lens
  • the positions of the group 1002 and the photosensitive chip 1003 are relatively fixed.
  • the lens actuating device installed with the second mirror 1005 By controlling the movement of the lens actuating device installed with the second mirror 1005, the distance from which the light is emitted from the lens group and irradiates the photosensitive chip is changed. Or, the angle of the optical axis 64a when the lens group is irradiated onto the photosensitive chip is changed, so that the periscope lens module 3000 performs focusing and anti-shake.
  • the present application also provides a shooting device including a housing and the periscope camera module, the periscope camera module is installed in the housing.
  • the housing is provided with a light entrance hole through which light enters the periscope camera module.
  • a control unit is also provided in the casing of the mobile terminal.
  • the control unit is a PCB board, and a control circuit is provided on the PCB board.
  • the translation motor, the shift shaft motor, and the photosensitive chip are all electrically connected to the control unit, and the control unit is used to analyze the image received from the photosensitive chip to determine an appropriate corrected motion value, and One or more electrical signals to the corresponding translation motor and/or the shift shaft motor, so that the translation motor and/or the shift shaft motor drives the bracket and is mounted on the bracket
  • the optical components on the top produce corrective motion.
  • both the translation motor and the coil of the shift motor are connected to the control unit through a flexible circuit board (FPC).
  • FPC flexible circuit board
  • the control unit receives the image of the photosensitive chip to determine an appropriate corrected motion value ,
  • the control signal is transmitted to the translation motor and the coil of the shift shaft motor through the flexible circuit board (FPC), that is, the size of the current transmitted to the coil is controlled, thereby controlling the pushing of the bracket by different motors
  • the magnitude of the force so as to control the bracket to drive the movement of the optical components located thereon, so as to achieve the focus and axis shift of the periscope camera module in the shooting device.
  • the periscope lens module is installed in the shooting device so that the external light enters the lens group after being reflected, so that the lens group can form an angle with the light entrance axis of the light entrance hole, which can make
  • the direction of the optical axis of the lens group is different from the thickness direction of the photographing device, so as to eliminate the limitation of the length of the optical axis direction of the lens group on the thickness of the photographing device, and realize the thinning of the photographing device.
  • the translation motor can drive the translation of the optical component fixed to the bracket to achieve the inclusion of the optical component and The focusing and anti-shake of the periscope lens module of the lens actuating device.
  • the shifting motor drives the rotation of the optical component fixed to the bracket to drive the shifting axis of the optical component located on the bracket, thereby compensating the shooting module including the optical component and the lens actuating device when shooting The generated jitter realizes the anti-shake of the shooting module.
  • the translation motor and the shaft motor are independent entities, so that the translation motor and the shaft motor can work at the same time, which can simultaneously drive the translation and rotation of the bracket, and can be installed at the same time.
  • the rotation of the bracket can be realized by the cooperation of the shaft-shifting motor and the elastic member. There is no need to set two or two symmetrical motors around the bracket, and there is no need to control the difference in the driving force of the bracket by the opposite motor. The rotation is realized, so that the number of motors around the bracket can be reduced, and the volume occupied by the lens actuating device can be reduced. In addition, since the number of motors is reduced, the control of the motors can be simplified and the control efficiency can be improved.

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Abstract

一种镜头致动装置（100），包括壳体、支架（20）、多个弹性件（30）、平移式马达（40）及移轴式马达（50），平移式马达（40）及移轴式马达（50）为彼此独立的个体，使得平移式马达（40）及移轴式马达（50）能够同时工作，具有更高的控制效率。并且通过移轴式马达（50）与弹性件（30）的配合实现支架（20）的转动，不需要在支架（20）的四周设置两两对称的马达，从而能够减小设置在支架（20）周围的马达的数量。还公开了一种包括镜头致动装置（100）的潜望式透镜模组（1000）以及包括潜望式透镜模组（1000）的拍摄设备，通过在镜头致动装置（100）的支架（20）上设置平移式马达（40）及移轴式马达（50），实现包括光学部件（60）及镜头致动装置（100）的潜望式透镜模组（1000）的对焦及防抖。光线经过反射后进入透镜组（1002），使得透镜组（1002）的光轴方向与拍摄设备的厚度方向不同，以消除透镜组（1002）的光轴方向长度对拍摄设备厚度的限制，实现拍摄设备的薄型化。

Description

镜头致动装置、潜望式拍摄模组及拍摄设备
本申请要求于2018年12月26日提交中国专利局、申请号为2018116084170、申请名称为“镜头致动装置、潜望式拍摄模组及拍摄设备”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请涉及电子技术领域，尤其涉及一种镜头致动装置、包括所述镜头致动装置的潜望式拍摄模组及拍摄设备。
背景技术
拍摄设备一般包括透镜组，通过透镜组中不同透镜对不同光线的折射以照射至图像传感器上从而成像，为了实现对焦以及防抖以得到画质清晰的图像，需要在所述镜头组的四周均设置马达，以驱动所述镜头组沿光轴方向平移以进行对焦。或者将所述镜头组周围的马达两个对称设置，通过控制相对称的两个马达对镜头组施加的作用力的不同，以使得所述镜头组产生在垂直于光轴方向平面内的转动，以补偿拍摄时的抖动，从而实现防抖。现有技术中，驱动镜头组平移及转动的马达为相同的马达，使得镜头组的平移及转动均只能分开进行。
发明内容
本申请提供一种镜头致动装置、包括所述镜头致动装置的潜望式拍摄模组及拍摄设备，旨在实现镜头组的平移及转动能够同时进行，实现对焦及防抖效率的提高，以快速得到画质清晰的画面。
第一方面，本申请提供一种镜头致动装置，用于带动与所述镜头致动装置固定的光学部件移动或转动；所述镜头致动装置包括壳体以及支架、多个弹性件、平移式马达及移轴式马达；所述支架收容于所述壳体内，所述光学部件与所述支架固定，所述光学部件用于改变光线的传播方向；多个所述弹性件均连接在所述壳体与所述支架之间，并围绕所述光学部件的入光轴间隔设置，用于将所述支架支撑于所述壳体内；所述平移式马达及所述移轴式马达均位于所述壳体与所述支架之间，且所述平移式马达及所述移轴式马达均包括固定部以及相对于所述固定部运动的活动部；所述平移式马达的所述固定部和所述活动部中的一者固定于所述支架、另一者固定于所述壳体，所述平移式马达用于驱动所述支架相对所述壳体在平移方向上移动；所述移轴式马达的所述驱动部和所述活动部中的一者固定于所述支架上，另一者固定于所述壳体上，所述移轴式马达用于与多个所述弹性件配合以驱动所述支架相对所述壳体绕旋转轴转动，所述旋转轴平行于所述平移方向或垂直于所述平移方向。
本申请中，通过在所述镜头致动装置的支架上设置平移式马达及移轴式马达，以通过所述平移式马达带动与所述支架固定的光学部件的平移，实现包括所述光学部件及镜头致动装置的拍摄模组的对焦及防抖。通过所述移轴式马达带动与所述支架固定的光学部件的转动，以带动位于所述支架上的光学部件移轴，从而补偿包括所述光学部件及镜头致动装 置的拍摄模组拍摄时产生的抖动，实现拍摄模组的防抖。本申请中，所述平移式马达及移轴式马达为彼此独立的个体，使得所述平移式马达及移轴式马达能够同时工作，进而能够同时带动支架平移以及转动，能够同时实现安装于所述支架上的光学部件的对焦及防抖，具有更高的控制效率，以快速的得到画质清晰的图像。并且，本申请中通过移轴式马达与弹性件的配合即可实现支架的转动，不需要在支架的四周设置两两对称的马达，且不需要控制相对的马达对于支架的推动力的不同而实现转动，从而能够减小设置支架周围的马达的数量，减小所述镜头致动装置占用的体积。并且，由于马达的数量减小，也能够简化对马达的控制，提高控制效率。
本申请一些实施例中，所述弹性件均为两自由度弹性体，第一方向的弹性系数小于第二方向或第三方向的弹性系数，其中，所述第一方向、第二方向及第三方向分别正交，所述支架的平移方向与所述第一方向平行。
本申请中，由于所述弹性件为两自由度弹性体，即弹性件在正交的三个方向中的其中两个方向上的弹性系数小于在另一个方向上的弹性系数，使得弹性件在正交的三个方向中的其中两个方向上较另一个方向上更容易变形。根据需要，在所述支架的不同位置选择使用自由度方向不同的弹性件，从而使得移轴式马达对支架产生作用力时，由于设于所述支架的不同位置的弹性件在移轴式马达对支架产生作用力方向的弹性系数不同，从而使得支架进行转动，使得不需要控制支架不同位置的马达对支架的推动力不同而实现支架的转动，简化对移轴式马达的控制，提高效率，并能够避免支架在非旋转方向产生转动或在非平移方向产生转动。
本申请一些实施例中，所述镜头致动装置还包括多个位置传感器，所述位置传感器与所述移轴式马达及所述平移式马达一一对应。通过设置与所述移轴式马达及所述平移式马达一一对应的位置传感器，能够形成位置闭环，即能够通过所述位置传感器精准的获知所述支架相对所述壳体的精确位置，并通过所述位置传感器获取的信息控制进一步指导对所述移轴式马达及所述平移式马达的控制，进而实现对镜头精确的对焦及防抖。具体的，本申请一种实施例中，所述位置传感器为霍尔(hall)传感器。
本申请一些实施例中，所述光学部件包括入光面以及与所述入光面呈夹角的出光面，所述入光面具有垂直于所述入光面的入光轴，所述出光面具有垂直于所述出光面的出光轴；所述弹性件为片状，所述入光轴与所述弹性件所在平面平行。
所述光学部件的入光面与出光面之间呈夹角，即光学部件能够改变经过其的光线的传播方向。并且，所述弹性件的所在平面与所述入光轴平行，即弹性件不可能设置于入光轴方向，从而避免弹性件增加所述镜头致动装置沿入光轴方向的厚度。
本申请的一些实施例中，所述入光轴与所述出光轴垂直，所述平移方向与所述出光轴平行，所述旋转轴与所述入光轴及所述出光轴均垂直。当将所述镜头致动装置应用于摄像模组中时，所述镜头致动装置带动光学部件沿出光轴方向移动，能够调整光学部件与感光芯片之间的距离，即能够调整像距，从而能够实现摄像模组的对焦。而所述旋转轴与所述入光轴及所述出光轴均垂直，使得支架能够带动光学部件实现在出光轴方向的防抖。
具体的，一实施例中，所述平移式马达及移轴式马达均为音圈马达，所述平移式马达及移轴式马达的所述活动部均为磁石，且均固定于所述支架上；所述平移式马达的活动部 的N极、S极方向与所述出光轴方向相同，所述移轴式马达的活动部的N极、S极方向与所述入光轴的方向相同。
音圈马达一般包括磁石以及所述磁石对应的线圈，通过往所述线圈中通入不同大小的电流，以控制线圈与磁石之间的洛伦磁力的大小，以根据实际需求控制推动所述支架相对于壳体的作用力。本实施例中，所述平移式马达的活动部的N极、S极方向与所述出光轴方向相同，从而使得所述平移式马达的磁石与线圈之间的洛伦磁力方向为出光轴方向。而所述移轴式马达的活动部的N极、S极方向与所述入光轴的方向相同，从而使得所述移轴式马达的磁石与线圈之间的洛伦磁力方向为入光轴方向。
本申请的另一些实施例中，所述入光轴与所述出光轴垂直，所述平移方向及所述旋转轴方向均与所述出光轴平行。当将所述镜头致动装置应用于摄像模组中时，所述镜头致动装置带动光学部件沿出光轴方向移动，能够调整光学部件与感光芯片之间的距离，即能够调整像距，从而能够实现摄像模组的对焦。而所述旋转轴与所述入光轴及所述出光轴均垂直，使得支架能够带动光学部件实现在垂直于出光轴方向及入光轴的防抖。
具体的，一实施例中，所述平移式马达及移轴式马达均为音圈马达，所述平移式马达及移轴式马达的活动部均为磁石，且均固定于所述支架上；所述平移式马达的固定部的N极、S极方向垂直于所述出光轴及所述出光轴，所述移轴式马达的固定部的N极、S极方向与所述入光轴的方向相同。
本实施例中，所述平移式马达的活动部的N极、S极方向垂直于所述出光轴及所述出光轴，从而使得所述平移式马达的磁石与线圈之间的洛伦磁力方向垂直于出光轴方向及入光轴方向。而所述移轴式马达的活动部的N极、S极方向与所述入光轴的方向相同，从而使得所述移轴式马达的磁石与线圈之间的洛伦磁力方向为入光轴方向。
本申请的一些实施例中，所述支架包括相对设置的第一面及第二面，以及连接于所述第一面与所述第二面之间的第三面，且所述第三面远离所述光学部件的出光面；所述移轴式马达对称设置于所述第一面及所述第二面，所述平移式马达位于所述第三面中心或者对称设置于所述第一面及第二面；位于同一面的所述平移式马达及所述移轴式马达沿所述出光轴方向并排设置。
本申请的另一些实施例中，所述支架包括相对设置的第一面及第二面，以及连接于所述第一面与所述第二面之间的第三面，且所述第三面远离所述光学部件的出光面；所述移轴式马达设置于所述第三面的中心，所述平移式马达对称设置于所述第一面及第二面。
所述移轴式马达对称设置于所述第一面及所述第二面，所述平移式马达位于所述第三面中心或者对称设置于所述第一面及第二面；或者，所述移轴式马达设置于所述第三面的中心，所述平移式马达对称设置于所述第一面及第二面，均能够推动支架以产生旋转轴为垂直于第一面的转动，以及移动方向为所述出光轴方向的平移。移轴式马达及平移式马达均对称设置于第一面及第二面或者设置于第三面中心，使得第一面及第二面受力相同，使得支架在平移或者转动的过程中，避免第一面与第二面受力不同而产生偏转和扭矩。
一些实施例中，多个所述弹性件对称设于所述第一面及所述第二面；
设于所述第一面及所述第二面上的所述弹性件均包括平移弹性件以及共用弹性件，所述平移弹性件沿所述出光轴方向的弹性系数及所述旋转轴方向的弹性系数均小于所述入光 轴方向的弹性系数；所述共用弹性件沿所述旋转轴方向的弹性系数大于所述入光轴方向及所述出光轴方向的弹性系数，所述共用弹性件与所述旋转轴平行的方向的弹性系数大于所述平移式马达与所述旋转轴平行的方向的弹性系数；
所述第一面及第二面上沿所述出光轴方向上的两侧分别设有平移弹性件以及共用弹性件；所述平移弹性件相对于所述共用弹性件远离所述第三面，所述共用弹性件相对于所述平移弹性件靠近所述第三面。
由于所述平移弹性件靠近所述第三面，所述共用弹性件远离所述第三面，而所述共用弹性件与所述旋转轴平行的方向的弹性系数大于所述平移式马达与所述旋转轴平行的方向的弹性系数，从而使得所述移轴式马达给所述支架施加沿入光轴方向的力时，平移弹性件在沿入光轴方向的变形会小于共用弹性件沿入光轴方向的变形，从而产生旋转轴为垂直于第一面方向的转动。
具体的，一种实施例中，每个所述平移弹性件以及共用弹性件均包括多条间隔设置并首尾连接的蚀刻臂，所述平移弹性件的所述蚀刻臂的延伸方向与所述入光轴平行，所述共用弹性件的所述蚀刻臂的延伸方向与所述第一面垂直，使得所述平移弹性件沿所述出光轴方向的弹性系数及所述旋转轴方向的弹性系数均小于所述入光轴方向的弹性系数；所述共用弹性件沿所述旋转轴方向的弹性系数大于所述入光轴方向及所述出光轴方向的弹性系数。
对于所述移轴式马达设置于所述第三面的中心，所述平移式马达对称设置于所述第一面及第二面的实施例来说，多个所述弹性件可以分别位于第一面及第二面沿所述出光轴方向上的两侧边上；所述弹性件沿出光轴方向及入光轴方向的弹性系数均小于垂直于所述出光轴及所述入光轴方向的弹性系数。
由于所述移轴式马达设置于所述第三面，使得移轴式马达施加于支架上第三面一侧的力大于在出光面一侧的力，当弹性件沿出光轴方向及入光轴方向的弹性系数均小于垂直于所述出光轴及所述入光轴方向的弹性系数时，会产生旋转轴垂直于第一面方向的转动。且由于当弹性件沿出光轴方向及入光轴方向的弹性系数均小于垂直于所述出光轴及所述入光轴方向的弹性系数，使得支架能够在沿出光轴方向进行平移，但限制其在垂直于第一面上的运动，避免支架在不需要进行运动的方向上进行运动，以实现支架运动的精准控制。
具体的，一实施例中，每个所述弹性件均包括多条间隔设置并首尾连接的蚀刻臂，所述蚀刻臂的延伸方向垂直于所述入光轴及所述出光轴，使得所述弹性件沿出光轴方向及入光轴方向的弹性系数均小于垂直于所述出光轴及所述入光轴方向的弹性系数。
本申请一些实施例中，所述磁石包括2ⅹn块子磁石，其中，n为大于0的自然数；相邻的所述子磁石的N极、S极相反，每个所述磁石上固定有位置传感器，且所述位置传感器位于所述磁石的中心的两块子磁石的交界处。
由于所述磁石的中心的两块子磁石交界处附近为磁场线性区域，位置变化与磁场变化是线性关系，其他位置线性关系差，位置检测效果不好。因此，将所述位置传感器位于所述磁石的中心的两块子磁石的交界处能够更加准确的获知所述支架相对于壳体的运动距离及运动速度等运动信息,再通过所述位置传感器获得的运动信息指导所述平移式马达及所述移轴式马达推动所述支架的运动，以得到精确的对焦及防抖效果。
本申请另一些实施例中，所述磁石为单块磁铁，所述磁石的N极朝向方向及所述磁石的S极朝向方向相背；所述位置传感器固定于所述壳体上并朝向所述磁石的侧面，所述磁石的侧面与所述N极朝向方向及所述磁石的S极朝向方向垂直。对于所述磁石为单块磁铁的情况，所述磁石的侧面为磁场线性区域，位置变化与磁场变化是线性关系，因此，将所述位置传感器朝向所述磁石的侧面设置。
本申请的另一些实施例中，所述光学部件为反射平面，具有单一光轴，所述弹性件为片状，所述光轴与所述弹性件所在平面垂直。
其中，所述平移方向与所述光轴方向平行，所述旋转轴方向与所述平移方向垂直。使得将所述镜头致动装置应用于摄像模组时，沿平移方向平移所述支架能够实现对焦，以旋转轴为轴转动所述支架实现摄像模组的移轴，从而补偿抖动，实现防抖。
一些实施例中，所述平移式马达及移轴式马达均为音圈马达，所述平移式马达及移轴式马达的所述活动部均为磁石，且均固定于所述支架上；所述平移式马达的活动部的N极、S极方向与所述光轴方向相同，所述移轴式马达的活动部的N极、S极方向与所述光轴的垂直，从而通过所述平移式马达及移轴式马达对所述支架的作用力，能够使得所述平移方向与所述光轴方向平行，所述旋转轴方向与所述平移方向垂直。
一些实施例中，所述支架包括与所述光轴平行的侧面，所述平移式马达与所述移轴式马达沿光轴方向并排设置，且所述平移式马达与所述移轴式马达均内嵌于所述侧面。通过将平移式马达与所述移轴式马达均内嵌于所述侧面，使得所述平移式马达与所述移轴式马达能够尽量的接近所述支架的中心，使得平移式马达能够推动支架沿光轴方向移动而不会产生偏转，移轴式马达能够推动支架产生旋转轴方向垂直所述平移方向的转动而不会产生其它方向的偏转，使得支架的运动更加的准确。
其中，所述侧面包括相对的第一侧面及第二侧面，以及连接于所述第一侧面与所述第二侧面之间的第三侧面，所述平移式马达与所述移轴式马达均内嵌于所述第三侧面；
多个所述弹性件对称设于所述第一侧面及所述第二侧面；
设于所述第一侧面及所述第二侧面上的所述弹性件均包括平移弹性件以及共用弹性件，所述平移弹性件沿所述光轴方向的弹性系数及所述平行于第一侧面的方向的弹性系数均小于所述垂直于第一侧面的方向的弹性系数；所述共用弹性件沿所述光轴方向的弹性系数及所述垂直于第一侧面的方向的弹性系数均小于所述平行于第一侧面的方向的弹性系数，所述共用弹性件平行于第一侧面的方向的弹性系数大于所述平移弹性件平移于第一侧面的方向的弹性系数；
所述平移弹性件以及共用弹性件分别设于所述第一侧面及第二侧面上沿所述光轴方向上的两侧；所述平移弹性件相对于所述共用弹性件靠近所述反射平面，所述共用弹性件相对于平移弹性件远离所述反射平面。
由于所述平移弹性件相对于所述共用弹性件靠近所述反射平面，所述共用弹性件相对于平移弹性件远离所述反射平面，而平移式马达在入光轴方向具有较大的弹性系数，而共用弹性件在入光轴方向弹性系数较小，从而使得所述移轴式马达给所述支架平行于第一侧面方向的力时，平移弹性件在平行于第一侧面方向的变形会小于共用弹性件平行于第一侧面方向的变形，从而产生旋转轴为垂直于第一侧面方向的转动。
一种实施例中，每个所述平移弹性件以及共用弹性件均包括多条间隔设置并首尾连接的蚀刻臂，所述平移弹性件的所述蚀刻臂的延伸方向与垂直所述第一侧面，所述共用弹性件的所述蚀刻臂平行所述第一侧面，使得所述平移弹性件沿所述光轴方向的弹性系数及所述平行于第一侧面的方向的弹性系数均小于所述垂直于第一侧面的方向的弹性系数；所述共用弹性件沿所述光轴方向的弹性系数及所述垂直于第一侧面的方向的弹性系数均小于所述平行于第一侧面的方向的弹性系数。
第二方面，本申请提供一种潜望式摄像模组，所述潜望式摄像模组包括第一反射镜、透镜组、感光芯片以及所述镜头致动装置，所述第一反射镜及所述透镜组均安装于所述镜头致动装置的所述支架上，光线经所述第一反射镜反射后穿过所述透镜组并传输至所述感光芯片上；所述平移式马达以及移轴式马达带动所述第一反射镜及透镜组移动以实现调焦或者防抖。具体的，所述平移式马达带动所述第一反射镜及透镜组移动，从而改变镜头组与感光芯片之间的距离，从而实现调焦，移轴式马达带动第一反射镜及透镜组转动，改变光轴的方向，以补偿摄像模组的抖动，从而实现防抖。
本申请一些实施例中，所述潜望式摄像模组的所述透镜组与所述感光芯片之间还设有一个所述镜头致动装置，所述透镜组与所述感光芯片之间的所述镜头致动装置上安装有第二反射镜，所述第二反射镜用于将经所述透镜组的光线反射至所述感光芯片。并且，通过安装有所述第二反射镜的镜头致动装置与安装有第一反射镜的镜头致动装置的平移与转动共同实现对焦以及防抖。
本申请一些实施例中，所述潜望式摄像模组的所述透镜组与所述感光芯片之间还设有一个第二反射镜，所述第二反射镜用于将经所述透镜组的光线反射至所述感光芯片。
第三方面，本申请还提供另一种潜望式摄像模组，所述潜望式摄像模组包括第一反射镜、透镜组、感光芯片、第二反射镜以及所述镜头致动装置，所述第二反射镜安装于所述镜头致动装置的支架上；所述第一反射镜用于将光线反射至所述透镜组；所述透镜组用于将所述第一反射镜反射的光线传输至所述第二反射镜；所述第二反射镜用于将所述透镜组传输的光线传输至所述感光芯片之间，所述镜头致动装置的所述平移式马达以及移轴式马达带动所述反射镜及透镜组移动以实现调焦或者防抖。
第四方面，本申请提供一种拍摄设备，所述拍摄设备包括外壳、控制单元及所述潜望式拍摄模组，所述潜望式拍摄模组安装于所述外壳内；所述外壳上设有入光孔，光线经所述入光孔进入所述潜望式拍摄模组中，且所述潜望式拍摄模组的透镜组的光轴与所述入光孔的轴线相交，所述第一反射镜位于所述入光孔与所述透镜组之间，用于将所述入光孔进入的光线反射至所述透镜组；所述平移式马达、所述移轴式马达及所述感光芯片均与所述控制单元电连接，所述控制单元用于接收并分析所述感光芯片的图像以确定一个合适的校正运动值，并发送信号至相应的所述平移式马达和/或所述移轴式马达，使得所述平移式马达和/或所述移轴式马达带动所述支架以及与安装于所述支架上的光学部件平移和/或转动。
本申请中，所述潜望式拍摄模组的透镜组的光轴与所述入光孔的轴线相交，通过所述第一反射镜将所述入光孔进入的光线反射至所述透镜组中。一般来说，所述入光孔一般设于所述拍摄设备的厚度方向，由于不需要将透镜组的光轴与入光孔的轴向同轴设置，从而 能够避免透镜组的光轴方向的尺寸限制所述拍摄模组厚度方向的尺寸，便于实现拍摄模组的薄型化。并且，通过所述拍摄模组中的潜望式拍摄模组的对焦及防抖，能够使得所述拍摄设备能够拍摄得到清晰度更好的画面。
附图说明
为更清楚地阐述本申请的构造特征和功效，下面结合附图与具体实施例来对其进行详细说明。
图1为本申请一实施例的镜头致动装置的结构示意图；
图2为图1所述镜头致动装置俯视示意图；
图3为本申请另一实施例的镜头致动装置的结构示意图；
图4为图3所述镜头致动装置俯视示意图；
图5为本申请另一实施例的镜头致动装置的结构示意图；
图6为本申请一实施例中的平移式马达以及位置传感器的结构示意图；
图7a为本申请一实施例的共用弹性件的结构示意图；
图7b为本申请一实施例的平移弹性件的结构示意图；
图8为本申请另一实施例的镜头致动装置的结构示意图；
图9为图8所述镜头致动装置俯视示意图；
图10为本申请另一实施例的所述镜头致动装置俯视示意图；
图11为本申请另一实施例的镜头致动装置的结构示意图；
图12为图11所述镜头致动装置俯视示意图；
图13为本申请另一实施例的镜头致动装置的结构示意图；
图14为本申请另一实施例的镜头致动装置的结构示意图；
图15为图14所述实施例的镜头致动装置的拆分结构示意图；
图16为本申请一实施例的潜望式透镜模组的成像原理示意图；
图17为图16所述实施例的潜望式透镜模组的结构示意图；
图18为本申请另一实施例的潜望式透镜模组的成像原理示意图；
图19为本申请另一实施例的潜望式透镜模组的成像原理示意图；
图20为本申请另一实施例的潜望式透镜模组的成像原理示意图。
具体实施方式
下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行清楚、完整地描述。
在本申请的描述中，需要说明的是，除非另有明确的规定和限定，术语“安装”、“连接”、“固定”应做广义理解，例如，所述“连接”可以是固定连接，也可以是可拆卸连接，或一体地连接；可以是机械连接，也可以是电连接或可以相互通讯；可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通或两个元件的相互作用关系。“所述固定”可以是直接固定，也可以通过中间媒介固定。所述“安装”可以为可拆卸安装、固定安装；也可以为直接安装或者通过中间媒介间接安装。对于本领域的普通技术人员而 言，可以根据具体情况理解上述术语在本申请中的具体含义。
本申请提供一种拍摄设备，所述拍摄设备可以为手机、平板、卡片相机等各种能够用于拍摄的电子设备。所述拍摄设备包括拍摄模组，以通过所述拍摄模组进行拍摄。所述拍摄模组包括镜头致动装置、光学部件以及感光芯片，所述光学部件安装于所述镜头致动装置上。所述镜头致动装置用于带动与安装于所述镜头致动装置上的光学部件移动或转动，以实现包括所述镜头致动装置及所述光学部件的拍摄模组的对焦及防抖。
本申请中，所述镜头致动装置包括壳体以及支架、多个弹性件、平移式马达及移轴式马达。所述支架收容于所述壳体内，所述光学部件与所述支架固定，所述光学部件对光线进行折射或者反射以改变光线的传播方向，使得光线照射至感光芯片上并得到清晰的像。多个所述弹性件均连接在所述壳体与所述支架之间，用于将所述支架支撑于所述壳体内，并为支架在壳体内的运动提供运动空间。所述平移式马达及所述移轴式马达均位于所述壳体与所述支架之间，且所述平移式马达及所述移轴式马达均包括固定部以及相对于所述固定部运动的活动部。所述平移式马达的所述固定部和所述活动部中的一者固定于所述支架、另一者固定于所述壳体，通过所述平移式马达的固定部与活动部的相对运动驱动所述支架相对所述壳体在平移方向上移动。所述移轴式马达的驱动部和活动部中的一者固定于所述支架上，另一者固定于所述壳体上，通过所述移轴式马达用于与多个所述弹性件配合以驱动所述支架相对所述壳体绕旋转轴转动。本申请中，所述旋转轴平行于所述平移方向或垂直于所述平移方向。
本申请中，通过在所述镜头致动装置的支架上设置平移式马达及移轴式马达，以通过所述平移式马达带动与所述支架固定的光学部件的平移，实现包括所述光学部件及镜头致动装置的拍摄模组的对焦及防抖。通过所述移轴式马达带动与所述支架固定的光学部件的转动，以带动位于所述支架上的光学部件移轴，从而补偿包括所述光学部件及镜头致动装置的拍摄模组拍摄时产生的抖动，实现拍摄模组的防抖。本申请中，所述平移式马达及移轴式马达为彼此独立的个体，使得所述平移式马达及移轴式马达能够同时工作，进而能够同时带动支架平移以及移轴，能够同时实现镜头的对焦及防抖，具有更高的控制效率，以快速的得到画质清晰的图像。并且，本申请中通过移轴式马达与弹性件的配合即可实现支架的转动，不需要在支架的四周设置两两对称的马达，且不需要控制相对的马达对于支架的推动力的不同而实现转动，从而能够减小设置支架周围的马达的数量，减小所述镜头致动装置占用的体积。并且，由于马达的数量减小，也能够简化对马达的控制，提高控制效率。
本申请一些实施例中，所述弹性件均为两自由度弹性体。其中，两自由度弹性体是指弹性件在正交的三个方向中的其中两个方向上的弹性系数小于在另一个方向上的弹性系数，使得弹性件在正交的三个方向中的其中两个方向上较另一个方向上更容易变形。本申请中，所述支架的平移方向与所述第一方向平行，第一方向的弹性系数小于第二方向或第三方向的弹性系数；所述旋转轴的方向与所述第二方向平行，所述第二方向与所述第三方向的弹性系数的大小不同，且根据实际需求的不同，所述弹性件沿所述第二方向的弹性系数可能大于所述第三方向的弹性系数，也可能小于第三方向的弹性系数。本申请中，根据实际需求，在所述支架的不同位置选择使用自由度方向不同的弹性件，从而使得移轴式马 达对支架产生作用力时，由于设于所述支架的不同位置的弹性件在移轴式马达对支架产生作用力方向的弹性系数不同，从而使得支架进行转动，使得不需要控制支架不同位置的马达对支架的推动力不同而实现支架的转动，简化对移轴式马达的控制，提高效率，并能够避免支架在非旋转方向产生转动或在非平移方向产生转动。
进一步的，本申请一些实施例中，所述镜头致动装置还包括多个位置传感器，所述位置传感器与所述移轴式马达及所述平移式马达一一对应。通过设置与所述移轴式马达及所述平移式马达一一对应的位置传感器，能够形成位置闭环。其中，闭环是指利用反馈空机制，具有自动修正被控制量出现偏离的能力，可以修正元件参数变化及外界扰动引起的误差，控制精度高。本申请一些实施例中，所述位置传感器为霍尔(Hall)传感器。所述霍尔传感器能够测定不同位置的磁场强度，并将测定得到的磁场强度至反馈给驱动控制器，所述驱动控制器根据位置传感器获得的信息控制平移式马达和/或移轴式马达的移动方向及速度，从而实现较为精确的对焦及防抖操作。
请参阅图1及图2，具体的，本申请一实施例中提供一种所述镜头致动装置100，镜头致动装置100包括壳体(图中未示出)、以及支架20、多个弹性件30、平移式马达40及移轴式马达50。壳体包括收容腔，支架20、多个弹性件30、平移式马达40及移轴式马达50均收容于收容腔内，所述壳体用于对设于其内部的结构进行保护。可以理解的是，当将所述镜头致动装置100设于拍摄设备内时，所述壳体100可以与所述拍摄设备的外壳固定，也可以为所述拍摄设备的外壳。光学部件60安装于支架20上，并随支架20一起运动。可以理解的是，本申请中所说的“安装”可以为直接安装，也可以为间接安装。例如，本实施例中，光学部件60先安装于一个固定架60a内，再将固定架60a固定于支架20上，使得光学部件60与支架20间接安装。
光学部件60包括入光面61以及与所述入光面61呈夹角的出光面62，所述入光面61具有垂直于所述入光面61的入光轴61a，且入光轴61a经过入光面61的中心；所述出光面62具有垂直于所述出光面62的出光轴62a，且出光轴62a经过出光面62的中心。需要说明的是，入光轴61a及出光轴62a并非实际存在的轴线，即入光轴61a及出光轴62a均为虚拟线。所述光学部件60的入光面61与出光面62之间呈夹角，即光学部件60能够改变经过其的光线的传播方向。
所述支架20包括相对设置的第一面21及第二面22，以及连接于所述第一面21与所述第二面22之间的第三面23，且所述第三面23远离所述光学部件200的出光面62。所述移轴式马达50对称设置于所述第一面21及所述第二面22。本实施例中，移轴式马达50为两个，分别设于第一面21及第二面22靠近第三面23的一侧。所述平移式马达40位于所述第三面23中心或者对称设置于所述第一面21及第二面22，位于同一面的所述平移式马达40及所述移轴式马达50沿所述出光轴方向并排设置。本实施例中，所述平移式马达40对称设置于第一面21及第二面22上，并靠近出光面62设置。请参阅图3及图4，图3及图4所示为本申请的另一种实施例的镜头致动装置200，图3实施例中的镜头致动装置200与图1所述实施例的镜头致动装置100的差别在于平移式马达40为一个，且平移式马达40设置于第三面23的中心面上。可以理解的是，所述平移式马达40也可以为多个，多个平移式马达40在第一面21至第二面22的方向上并排设置于所述第三面23上，且多个 平移式马达40并排设置后的整体结构的中心与第三面23的中心重合，从而使得支架20在第一面21所在侧及第二面22所在侧受力相同，避免因受力不均而在非旋转方向上产生较大的扭矩和倾角。
请再次参阅图1，所述平移式马达40及移轴式马达50均为音圈马达，音圈马达包括磁石与相对于磁石运动的线圈，通过往所述线圈中通入不同大小的电流，以控制线圈与磁石之间的洛伦磁力的大小，以根据实际需求控制推动所述支架20相对于壳体的作用力。所述平移式马达40包括磁石41及相对于磁石41运动的线圈42，其中，磁石41为所述平移式马达40的活动部，固定于所述支架20上；线圈42为所述平移式马达40的固定部。移轴式马达50包括磁石51及相对于磁石51运动的线圈52，其中，磁石51为所述移轴式马达50的活动部，固定于所述支架20上；线圈42为平移式马达40的固定部。所述磁石41的N极、S极方向与所述出光轴62a方向相同，从而使得所述磁石41与线圈42之间的产生沿出光轴62a方向的洛伦磁力。所述移轴式马达50的活动部的N极、S极方向与所述入光轴61a的方向相同，从而使得所述磁石51与线圈52之间的产生沿入光轴61a方向的洛伦磁力,与弹性件30配合产生旋转轴垂直于第一面21的转动。
本实施例中，由于所述磁石41的N极、S极方向与所述出光轴62a方向相同，从而使得所述磁石41与线圈42之间的产生沿出光轴62a方向的洛伦磁力，使得所述支架20相对于壳体平移的平移方向与所述出光轴62a平行。通过设置所述弹性件的所述旋转轴与所述入光轴及所述出光轴均垂直。当将所述镜头致动装置100应用于摄像模组中时，所述镜头致动装置100带动光学部件200沿出光轴方向移动，能够调整光学部件200与感光芯片1003之间的距离，即能够调整像距，从而能够实现摄像模组的对焦。而所述旋转轴与所述入光轴及所述出光轴均垂直，使得支架20能够带动光学部件200实现在出光轴方向的防抖。
一些实施例中，所述磁石(磁石41及磁石51)包括2ⅹn块子磁石411，其中，n为大于0的自然数。本实施例中，所述磁石包括两块子磁石411。相邻的所述子磁石411的N极、S极相反。具体的，所述磁石包括固定于支架上的第一表面，以及与所述第一表面相背的第二表面，所述线圈朝向所述第二表面，相邻两个子磁石411朝向所述第二表面一侧的磁极相反。本实施例中，每个所述子磁石411均独立。可以理解的是，在本申请的其它实施例中，所述磁石的子磁石可以为一块磁石通过一定的充磁方式得到。例如，在本申请的一种实施例中，磁石为单面双极性对充磁磁石，即通过一定的充磁方式使得所述磁石形成磁极相反的两个部分，其中，磁极相反的两个部分相当于两块子磁石411。
本申请一些实施例中，每个所述磁石上固定有位置传感器70，且所述位置传感器70位于所述磁石的中心的两块子磁石411的交界处。由于位于磁石的中心的两块子磁石411的交界处附近为磁场线性区域，使得该位置相对于线圈的位置变化与磁场变化是线性关系，其他位置线性关系差，位置检测效果不好。
本申请的其它实施例中，所述磁石可以为单块磁铁，所述磁石的N极朝向方向及所述磁石的S极朝向方向相背。所述位置传感器固定于所述壳体上并朝向所述磁石的侧面，所述磁石的侧面与所述N极朝向方向及所述磁石的S极朝向方向垂直。例如，图5为本申请的另一种实施例的镜头致动装置300，图5实施例中的镜头致动装置300与图3所述实施例的镜头致动装置200的差别在于所述平移式马达40的磁石41为单块磁铁，所述磁石41 的N极面贴靠所述第三面23。具体的，镜头致动装置300的平移式马达40的磁石41为单块圆柱磁铁，磁石41轴向方向的两侧为N极面以及S极面，磁石41的侧面为N极面与S极面之间的侧面。镜头致动装置300的平移式马达40的线圈42为环形线圈，环形线圈环设于圆柱磁铁的侧面外，线圈通电后与磁石之间产生沿磁石轴向方向的洛伦磁力，使得磁石41相对于线圈42产生沿磁石轴向方向的运动。本实施例中，所述磁石41的侧面固定有感应磁石43，所述位置传感器70固定于所述壳体上，并与所述感应磁石43相对，以感测感应磁石43的位置变化，从而获取支架20相对于壳体运动的速度及移动的距离等参数。
进一步的，请参阅图5及图6，本申请一些实施例中，所述磁石41的外表面包覆有导磁外壳44，起到导磁作用，提高磁石41的主磁通量。
请重新参阅图1，本实施例中，所述弹性件30为片状，所述入光轴61a与所述弹性件30所在平面平行，即所述弹性件30垂直于所述第一面21设置。所述弹性件30的所在平面与所述入光轴61a平行，使得弹性件30不可能设置于入光轴61a方向上，从而避免弹性件30增加所述镜头致动装置100沿入光轴61a方向的厚度。
进一步的，本申请中，由于所述弹性件30为两自由度弹性件，即弹性件30在正交的三个方向中的其中两个方向上的弹性系数小于在另一个方向上的弹性系数，使得弹性件30在正交的三个方向中的其中两个方向上较另一个方向上更容易变形。图1所示的镜头致动装置100中，多个所述弹性件30对称设于所述第一面21及所述第二面22，并在第一面21及第二面22靠近第三面23的一侧及远离第三面23的一侧均设有弹性件30，从而使得支架20稳定的支撑于壳体内。具体的，本实施例中，所述弹性件30为四个，两两对称设置于第一面21及第二面22。并且，本实施例中，所述第一方向出光轴62a，第二方向为垂直于第一面21的方向，第三方向为入光轴61a的方向。设于所述第一面21及所述第二面22上的所述弹性件30均包括平移弹性件30a以及共用弹性件30b。所述平移弹性件30a沿所述出光轴62a方向的弹性系数及所述旋转轴方向的弹性系数均小于所述入光轴61a方向的弹性系数，即平移弹性件30a第一方向以及第二方向的弹性系数小于第三方向的弹性系数；所述共用弹性件30b沿所述旋转轴方向的弹性系数大于所述入光轴方向及所述出光轴方向的弹性系数，即共用弹性件30b第一方向以及第三方向的弹性系数小于第二方向的弹性系数。并且，本实施例中，所述平移弹性件30a平行于所述入光轴61a方向的弹性系数大于共用弹性件30b平行于所述入光轴61a方向的弹性系数。
所述第一面21及第二面22上沿所述出光轴方向上的两侧分别设有平移弹性件30以及共用弹性件30；所述平移弹性件30相对于所述共用弹性件30远离所述第三面23，所述共用弹性件30相对于所述平移弹性件30靠近所述第三面23。当移轴式马达50对支架20施加沿入光轴61a的力时，由于所述平移弹性件30a第一方向的弹性系数大于共用弹性件30b第一方向的弹性系数，使得所述平移弹性件30a第三方向的变形量小于共用弹性件30b第三方向的变形量，从而产生以第二方向(垂直于第一面21)为旋转轴的转动。本申请中，通过移轴式马达50与弹性件30的配合以实现支架20的转动，不需要分别控制所述支架不同位置的马达对支架的推动力不同而实现支架的转动，简化对移轴式马达50的控制，提高效率。
具体的，请参阅图7a及图7b，一种实施例中，每个所述平移弹性件30a以及共用弹 性件30b均包括多条间隔设置并首尾连接的蚀刻臂31，所述平移弹性件30的所述蚀刻臂31的延伸方向与所述入光轴平行，所述共用弹性件30的所述蚀刻臂31的延伸方向与所述第一面21垂直，使得所述平移弹性件30沿所述出光轴方向的弹性系数及所述旋转轴方向的弹性系数均小于所述入光轴61a方向的弹性系数；所述共用弹性件30沿所述旋转轴方向的弹性系数大于所述入光轴61a方向及所述出光轴62a方向的弹性系数。本实施例中，所述弹性件30为金属件，通过将线型的金属弹片弯曲呈波浪型而得到所述首尾连接的多条蚀刻臂31。或者，在一些实施例中，所述蚀刻臂31可以通过蚀刻金属板得到。
本申请其它一些实施例中，移轴式马达设置于所述第三面的中心，所述平移式马达对称设置于所述第一面及第二面上，同样能够推动支架以产生旋转轴为垂直于第一面的转动，以及移动方向为所述出光轴方向的平移。请参阅图8及图9，图8及图9所示为本申请一种实施例的镜头致动装置400，所述镜头致动装置400与镜头致动装置100的差别在于：所述移轴式马达50位于所述第三面23的中心。此时，所述移轴式马达50对支架20施加的作用力位于所述第三面23上并平行于所述入光轴62a，使得移轴式马达50施加于第三面23上的作用力大于出光面62一侧的作用力，从而使得支架20能够产生以旋转轴方向垂直于第一面21的转动。在本实施例中，由于移轴式马达50施加于第三面23上的作用力大于出光面62一侧的作用力，从而能够使得支架20能够产生以旋转轴方向垂直于第一面21的转动。则设于所述第一面21及第二面22上的弹性件30可以均为共用弹性件30b，能够避免弹性件30对支架20平移及转动的限制。可以理解的是，本实施例中，所述第一面21及第二面22上的弹性件30也可以与镜头致动装置100中的弹性件30的结构及位置相同。
本申请的一些其它的实施例中，所述平移式马达及移轴式马达均为音圈马达，所述平移式马达及移轴式马达的活动部均为磁石，且均固定于所述支架上；所述平移式马达40的固定部的N、S极方向垂直于所述出光轴及所述出光轴，所述移轴式马达的固定部的N、S极方向与所述入光轴的方向相同。所述平移式马达的活动部的N极、S极方向垂直于所述出光轴及所述出光轴，从而使得所述平移式马达的磁石与线圈之间的洛伦磁力方向垂直于出光轴方向及入光轴方向，以推动所述支架产生垂直于所述出光轴及所述出光轴的平移。而所述移轴式马达的活动部的N极、S极方向与所述入光轴的方向相同，从而使得所述移轴式马达的磁石与线圈之间的洛伦磁力方向为入光轴方向，以推动所述支架产生旋转轴方向为垂直于所述出光轴及所述出光轴的转动。即这些实施例中，所述平移式马达推动所述支架移动的平移方向与所述移轴式马达推动所述支架转动的转动轴方向平行。这些实施例中，所述移轴式马达对称设置于所述第一面及所述第二面，所述平移式马达位于所述第三面中心或者对称设置于所述第一面及第二面；或者，所述移轴式马达设置于所述第三面的中心，所述平移式马达对称设置于所述第一面及第二面，均能够推动支架以产生旋转轴为垂直于第一面的转动，以及移动方向为所述出光轴方向的平移。移轴式马达及平移式马达均对称设置于第一面及第二面或者设置于第三面中心，使得第一面及第二面受力相同，使得支架在平移或者转动的过程中，避免第一面与第二面受力不同而产生偏转和扭矩。
具体的，请参阅图10，图10所示为本申请的一种镜头致动组件500，镜头致动组件500中的所述支架20的平移方向与所述支架20转动的转动轴方向平行。所述镜头致动组件500与图1所述的镜头致动组件100的差别在于平移式马达40的N极至S极的方向与所 述出光轴62a及入光轴61a均垂直，其中，平移式马达40推动支架20的平移方向与平移式马达40的N极至S极的方向平行。并且，所述平移弹性件30a与共用弹性件30b的所在平面与出光轴62a平行，以保证所述平移弹性件30a与共用弹性件30b在平移方向上的弹性系数均较小，避免平移弹性件30a与共用弹性件30b对支架20平移过程的限制。
请参阅图11及图12，图11及图12所示为本申请的一种镜头致动组件600，镜头致动组件600与镜头致动组件500的差别在于：所述移轴式马达50设置于所述第三面23的中心，所述平移式马达40对称设置于所述第一面21及第二面22。并且，本实施例中，镜头致动组件600的弹性件30均为共用弹性件30b，即所述弹性件30在支架的平移方向及垂直于平移轴及转轴的方向的弹性系数小于旋转轴方向的弹性系数。对于本实施例中，即所述弹性件30沿出光轴62a方向及入光轴61a方向的弹性系数均小于垂直于所述出光轴62a及所述入光轴61a方向的弹性系数。由于所述移轴式马达50设置于所述第三面23，使得移轴式马达50施加于支架20上第三面23一侧的力大于在出光面62一侧的力，当弹性件30沿出光轴62a方向及入光轴61a方向的弹性系数均大于垂直于所述出光轴62a及所述入光轴61a方向的弹性系数时，会产生旋转轴垂直于第一面21方向的转动。且由于当弹性件30沿出光轴62a方向及入光轴61a方向的弹性系数均小于垂直于所述出光轴62a及所述入光轴61a方向的弹性系数，使得支架20能够在沿出光轴62a方向进行平移，但限制其在垂直于第一面21上的运动，避免支架20在不需要进行运动的方向上进行运动，以实现支架20运动的精准控制。本实施例中，所述共用弹性件均包括多条间隔设置并首尾连接的蚀刻臂31，所述蚀刻臂31的延伸方向垂直于所述入光轴61a及所述出光轴62a，使得所述弹性件30沿出光轴62a方向及入光轴61a方向的弹性系数均小于垂直于所述出光轴62a及所述入光轴61a方向的弹性系数。
请参阅图13，图13所示为本申请的另一种镜头致动装置700，镜头致动装置700与镜头致动装置600的差别在于：所述镜头致动装置700的平移式马达的磁石为镜头致动装置300中平移式马达相同的单块磁铁。
本申请还提供一种镜头致动装置，所述镜头致动装置的光学部件包括单一的反射平面，具有单一光轴。即所述光学部件的入光面及出光面均为所述反射平面，光线入射至反射平面，经反射平面反射后再出射。其中，所述反射平面的中心轴为所述光轴。可以理解的是，光轴为虚拟轴，而并非实际存在的轴线。请参阅图14及图15，图14及图15所示为本申请的另一种镜头致动装置800，所述镜头致动装置800的所述光学部件60包括单一的反射平面64，具有单一光轴64a。所述弹性件30为片状，所述光轴64a与所述弹性件30所在平面垂直，使得弹性件30在光轴64a的方向上的弹性系数较小，从而使得支架20能够较容易的在光轴64a方向上的移动。本实施例中，所述镜头致动装置800与图1中的镜头致动装置100的差别在于：所述平移式马达40与所述移轴式马达50均为一个，所述平移式马达40与所述移轴式马达50沿光轴64a方向并排设置，并内嵌于所述支架20上与光轴64a平行的侧面。其中，所述支架20与光轴64a平行的侧面包括相对的第一侧面20a及第二侧面20b，以及连接于所述第一侧面20a与所述第二侧面20b之间的第三侧面20c。第三侧面20c上内凹有两个收容槽24，所述平移式马达40与所述移轴式马达50分别收容于一个收容槽24，以使得所述平移式马达40与所述移轴式马达50内嵌于所述第三侧面20c， 进而使得平移式马达40与所述移轴式马达50靠近所述支架20的几何中心，以避免平移式马达40或者移轴式马达50对支架20施加作用力偏离所需要的位置，进而避免支架20在非旋转方向上产生较大的扭矩和倾角。
本实施例中，所述弹性件30设于所述第一侧面20a及第二侧面20b上，并垂直于移动方向设置。并且，本实施例中，设于所述第一侧面20a及所述第二侧面20b上的所述弹性件30均包括与镜头致动装置100中结构相同的平移弹性件30a以及共用弹性件30b。具体的，所述平移弹性件30a沿所述光轴64a方向的弹性系数及平行于第一侧面20a的方向的弹性系数均小于所述垂直于第一侧面20a的方向的弹性系数；所述共用弹性件30b沿所述光轴64a方向的弹性系数及所述垂直于第一侧面20a的方向的弹性系数均小于所述平行于第一侧面20a的方向的弹性系数。所述平移弹性件30a以及共用弹性件30b分别设于所述第一侧面20a及第二侧面20b上沿所述光轴64a方向上的两侧。所述平移弹性件30a相对于所述共用弹性件30b靠近所述反射平面64，所述共用弹性件30b相对于平移弹性件30a远离所述反射平面64。
本实施例中，所述镜头致动装置800的支架20相对于壳体10平移的平移方向与所述光轴64a方向平行，所述支架20相对于壳体10转动的旋转轴方向与所述平移方向垂直，使得将所述镜头致动装置100应用于摄像模组时，沿平移方向平移所述支架20能够实现对焦，以旋转轴为轴转动所述支架20实现摄像模组的移轴，从而补偿抖动，实现防抖。
由于所述平移弹性件30a相对于所述共用弹性件30b靠近所述反射平面，所述共用弹性件30b相对于平移弹性件30a远离所述反射平面，而平移式马达40在入光轴64a方向具有较大的弹性系数，而共用弹性件30b在入光轴64a方向弹性系数较小，从而使得所述移轴式马达50给所述支架20平行于第一侧面20a方向的力时，平移弹性件30a在平行于第一侧面20a方向的变形会小于共用弹性件30b平行于第一侧面20a方向的变形，从而产生旋转轴为垂直于第一侧面20a方向的转动。
本实施例中，每个所述平移弹性件30a以及共用弹性件30b均包括多条间隔设置并首尾连接的蚀刻臂31。所述平移弹性件30a的所述蚀刻臂31的延伸方向与垂直所述第一侧面20a，所述共用弹性件30b的所述蚀刻臂31平行所述第一侧面20a，使得所述平移弹性件30a沿所述光轴64a方向的弹性系数及所述平行于第一侧面20a的方向的弹性系数均小于所述垂直于第一侧面20a的方向的弹性系数。所述共用弹性件30b沿所述光轴64a方向的弹性系数及所述垂直于第一侧面20a的方向的弹性系数均小于所述平行于第一侧面20a的方向的弹性系数。
请参阅图16，图16所示为本申请一种实施例的潜望式摄像模组1000，图中箭头方向表示光线在所述潜望式摄像模组1000内部的传播路径。所述潜望式摄像模组1000包括第一反射镜1001、透镜组1002、感光芯片1003以及上述的任一实施例中的镜头致动装置。其中，安装于所述镜头致动装置的支架20上的光学部件60包括所述第一反射镜1001及所述透镜组1002。所述支架20、光学部件60及感光芯片1003均收容于所述镜头致动装置的壳体80内，且所述感光芯片1003固定于所述壳体80内。所述壳体80上设有入光孔81，所述第一反射经1001的朝向入光孔81，入光孔81进入的光线经第一反射镜1001反射后穿过所述透镜组1002并传输至所述感光芯片1003上。
请参阅图17，本申请一实施例中，所述潜望式摄像模组1000中的镜头致动装置为图1所示的镜头致动装置100，所述镜头致动装置100的平移式马达40以及移轴式马达50带动所述第一反射镜1001及透镜组1002移动以实现调焦或者防抖。具体的，所述平移式马达40带动所述第一反射镜1001及透镜组1002沿平行于出光轴62a的方向移动，从而改变镜头组1002与感光芯片1003之间的距离，从而实现调焦，移轴式马达50带动第一反射镜1001及透镜组1002以垂直于第一面21的旋转轴转动，使得透镜组1002的光轴方向改变，以补偿潜望式摄像模组1000的抖动，从而实现防抖。可以理解的是，在本申请的其它实施例中，当所述潜望式摄像模组1000中的镜头致动装置为图11所示的镜头致动装置600或图13所示的镜头致动装置700时，平移式马达40带动支架20平移的平移方向与移轴式马达50带动支架20转动的转动轴方向相同。具体的，平移式马达40带动安装于支架20上的第一反射镜1001及透镜组1002在垂直于第一面21的方向移动，从而改变镜头组1002的光轴的位置，实现垂直于第一面21方向的防抖；移轴式马达50带动第一反射镜1001及透镜组1002以垂直于第一面21的旋转轴转动，使得光轴64a的方向改变，实现平行于第一面21方向的防抖。因此，本申请中，通过设置潜望式摄像模组1000中的镜头致动装置的类型不同，能够实现对焦及防抖或者多自由度方向的防抖。
请一并参阅图16及图17，本实施例中，所述第一反射镜1001为三棱透镜，间接固定于所述支架20上。所述三棱透镜63包括相互连接入光面63、出光面64以及反射面65。所述三棱透镜的入光面63与光学部件60的入光面61平行，所述三棱透镜的出光面64与光学部件60的出光面62平行，即三棱透镜的出光面64与入光面63垂直。所述三棱透镜的反射面65与出光面64及入光面63的夹角均为45°，以使得从入光面63入射的光线经过反射面65反射后从出光面64出射。具体的，所述第一反射镜1001先固定于一个固定架60a上，在将所述固定架60a固定于所述支架20内。所述透镜组1002同样固定于固定架60a上并位于所述第一反射镜1001的出光面62位置，从而使得经过所述第一反射镜1001反射后的光线进入所述透镜组1002内。所述透镜组1002内包括多个透镜，通过所述透镜组1002内的多个透镜将射入透镜组1002的光线进行折射，再将光线投射至所述感光芯片1003上。所述感光芯片1003位于所述透镜组1002背离所述第一反射镜1001的位置，以便于从所述透镜组1002射出的光线投射至所述感光芯片上以形成图像。可以理解的是，在其它的实施例中，所述第一反射1001及所述透镜组1002也能够直接固定于支架20内。
进一步的，本申请的一些实施例中，所述第一反射镜1001的入光面63上层叠有平凸透镜1006。所述平凸透镜1006用于将外界的更多光线会聚至所述潜望式摄像模组中，以得到画质更加清晰的图像。
请参阅图18，图18所示为本申请的另一种潜望式摄像模组2000，所述潜望式摄像模组2000与潜望式摄像模组1000的差别在于：所述透镜组1002与所述感光芯片1003之间还设有一个所述镜头致动装置，所述透镜组1002与所述感光芯片1003之间的所述镜头致动装置上安装有第二反射镜1005，所述第二反射镜1005用于将经所述透镜组的光线反射至所述感光芯片1003。并且，通过安装有所述第二反射镜1005的镜头致动装置100与安装有第一反射镜1001的镜头致动装置100的平移与转动共同实现对焦以及防抖。可以理解的是，安装有第二反射经的所述镜头致动装置可以为上述的任一种实施例的所述镜头致动 装置。并且，本实施例中，通过控制安装有第一反射镜1001的所述镜头致动装置及安装有第二反射镜1005的所述镜头致动装置中的任一个镜头致动装置运动，或者控制安装有第一反射镜1001的所述镜头致动装置及安装有第二反射镜1005的所述镜头致动装置共同配合运动均能够实现所述潜望式摄像模组1000的对焦及防抖操作。本申请一实施例中，安装有第二反射镜1005的镜头致动装置为图14所示的镜头致动装置800，所述第二反射镜1005为平面反射镜，具有单一的反射平面。
请参阅图19，图19所示为本申请的另一实施例的潜望式摄像模组3000，潜望式摄像模组3000与潜望式摄像模组1000的差别在于：所述潜望式摄像模组3000的所述透镜组1002与所述感光芯片1003之间还设有一个第二反射镜1006，所述第二反射镜1006与镜头致动装置的壳体10固定，即相对于感光芯片1003固定，以使得经所述透镜组1002的光线经述第二反射镜1006反射至所述感光芯片1003，从而减小潜望式摄像模组3000在透镜组1002的光轴方向的尺寸大小。
请参阅图20，图20所示为本申请的另一实施例的潜望式摄像模组4000，潜望式摄像模组4000与潜望式摄像模组2000的差别在于：所述潜望式摄像模组3000包括仅具有固定第二反射镜1005的镜头致动装置，所述第一反射镜1001、透镜组1002及感光芯片1003均与壳体固定，即所述第一反射镜1001、透镜组1002及感光芯片1003的位置均相对固定，通过控制安装有所述第二反射镜1005的镜头致动装置运动，以改变光线从所述透镜组出射并照射至所述感光芯片上的距离，或者改变所述透镜组的照射至所述感光芯片上时的光轴64a的角度，进而实现所述潜望式透镜模组3000进行对焦及防抖。
本申请还提供一种拍摄设备，所述拍摄设备包括外壳及所述潜望式摄像模组，所述潜望式摄像模组安装于所述外壳内。所述外壳上设有入光孔，光线经所述入光孔进入所述潜望式摄像模组中。所述移动终端的外壳内还设有控制单元，本实施例中，所述控制单元为PCB板，所述PCB板上设有控制电路。所述平移式马达、所述移轴式马达及所述感光芯片均与所述控制单元电连接，所述控制单元用于分析接收所述感光芯片的图像以确定一个合适的校正运动值，并一个或多个电信号到相应的所述平移式马达和/或所述移轴式马达，使得所述平移式马达和/或所述移轴式马达带动所述支架以及与安装于所述支架上的光学部件产生校正运动。本实施例中，平移式马达及所述移轴式马达的线圈均通过柔性线路板(FPC)与控制单元连接，所述控制单元接收所述感光芯片的图像以确定一个合适的校正运动值后，将控制信号通过所述柔性线路板(FPC)传输至平移式马达及所述移轴式马达的线圈，即控制传输至所述线圈中的电流的大小，从而控制不同的马达对支架的推动力的大小，从而控制支架带动位于其上的光学部件的移动，以实现所述拍摄设备中潜望式摄像模组的对焦及移轴。
本申请中，通过在拍摄设备内设置潜望式透镜模组，以使得外界的光线经过反射后在进入透镜组，从而使得透镜组能够与入光孔的入光轴呈夹角，从而能够使得透镜组的光轴方向与拍摄设备的厚度方向不同，以消除透镜组的光轴方向长度对拍摄设备厚度的限制，实现拍摄设备的薄型化。进一步的，通过在所述镜头致动装置的支架上设置平移式马达及移轴式马达，以通过所述平移式马达带动与所述支架固定的光学部件的平移，实现包括所述光学部件及镜头致动装置的潜望式透镜模组的对焦及防抖。通过所述移轴式马达带动与 所述支架固定的光学部件的转动，以带动位于所述支架上的光学部件移轴，从而补偿包括所述光学部件及镜头致动装置的拍摄模组拍摄时产生的抖动，实现拍摄模组的防抖。本申请中，所述平移式马达及移轴式马达为彼此独立的个体，使得所述平移式马达及移轴式马达能够同时工作，进而能够同时带动支架平移以及转动，能够同时实现安装于所述支架上的光学部件的对焦及防抖，具有更高的控制效率，以快速的得到画质清晰的图像。并且，本申请中通过移轴式马达与弹性件的配合即可实现支架的转动，不需要在支架的四周设置两两对称的马达，且不需要控制相对的马达对于支架的推动力的不同而实现转动，从而能够减小设置支架周围的马达的数量，减小所述镜头致动装置占用的体积。并且，由于马达的数量减小，也能够简化对马达的控制，提高控制效率。
以上所述，仅为本发明的具体实施方式，但本发明的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本发明揭露的技术范围内，可轻易想到变化或替换，都应涵盖在本发明的保护范围之内。因此，本发明的保护范围应以所述权利要求的保护范围为准。

Claims (27)

  1. 一种镜头致动装置，用于带动与所述镜头致动装置固定的光学部件移动或转动，其特征在于，包括：
    壳体以及支架，所述支架收容于所述壳体内，所述光学部件与所述支架固定，所述光学部件用于改变光线的传播方向；
    多个弹性件，多个所述弹性件均连接在所述壳体与所述支架之间，并围绕所述光学部件的入光轴间隔设置，用于将所述支架支撑于所述壳体内；
    平移式马达及移轴式马达，所述平移式马达及所述移轴式马达均位于所述壳体与所述支架之间，且所述平移式马达及所述移轴式马达均包括固定部以及相对于所述固定部运动的活动部；
    所述平移式马达的所述固定部和所述活动部中的一者固定于所述支架、另一者固定于所述壳体，所述平移式马达用于驱动所述支架相对所述壳体在平移方向上移动；
    所述移轴式马达的所述驱动部和所述活动部中的一者固定于所述支架上，另一者固定于所述壳体上，所述移轴式马达用于与多个所述弹性件配合以驱动所述支架相对所述壳体绕旋转轴转动，所述旋转轴平行于所述平移方向或垂直于所述平移方向。
  2. 如权利要求1所述的镜头致动装置，其特征在于，所述弹性件均为两自由度弹性体，第一方向的弹性系数小于第二方向或第三方向的弹性系数，其中，所述第一方向、第二方向及第三方向分别正交，所述支架的平移方向与所述第一方向平行。
  3. 如权利要求1所述的镜头致动装置，其特征在于，还包括多个位置传感器，所述位置传感器与所述移轴式马达及所述平移式马达一一对应。
  4. 如权利要求1或2所述的镜头致动装置，其特征在于，所述光学部件包括入光面以及与所述入光面呈夹角的出光面，所述入光面具有垂直于所述入光面的入光轴，所述出光面具有垂直于所述出光面的出光轴；所述弹性件为片状，所述入光轴与所述弹性件所在平面平行。
  5. 如权利要求4所述的镜头致动装置，其特征在于，所述入光轴与所述出光轴垂直，所述平移方向与所述出光轴平行，所述旋转轴与所述入光轴及所述出光轴均垂直。
  6. 如权利要求5所述的镜头致动装置，其特征在于，所述平移式马达及移轴式马达均为音圈马达，所述平移式马达及移轴式马达的所述活动部均为磁石，且均固定于所述支架上；所述平移式马达的活动部的N极、S极方向与所述出光轴方向相同，所述移轴式马达的活动部的N极、S极方向与所述入光轴的方向相同。
  7. 如权利要求4所述的镜头致动装置，其特征在于，所述入光轴与所述出光轴垂直，所述平移方向及所述旋转轴方向均与所述出光轴平行。
  8. 如权利要求7所述的镜头致动装置，其特征在于，所述平移式马达及移轴式马达均为音圈马达，所述平移式马达及移轴式马达的活动部均为磁石，且均固定于所述支架上；所述平移式马达的固定部的N极、S极方向垂直于所述出光轴及所述出光轴，所述移轴式马达的固定部的N极、S极方向与所述入光轴的方向相同。
  9. 如权利要求5至8任一项所述的镜头致动装置，其特征在于，所述支架包括相对设置的第一面及第二面，以及连接于所述第一面与所述第二面之间的第三面，且所述第三面 远离所述光学部件的出光面；所述移轴式马达对称设置于所述第一面及所述第二面，所述平移式马达位于所述第三面中心或者对称设置于所述第一面及第二面；位于同一面的所述平移式马达及所述移轴式马达沿所述出光轴方向并排设置。
  10. 如权利要求5至8任一项所述的镜头致动装置，其特征在于，所述支架包括相对设置的第一面及第二面，以及连接于所述第一面与所述第二面之间的第三面，且所述第三面远离所述光学部件的出光面；所述移轴式马达设置于所述第三面的中心，所述平移式马达对称设置于所述第一面及第二面。
  11. 如权利要求9或10所述的镜头致动装置，其特征在于，多个所述弹性件对称设于所述第一面及所述第二面；
    设于所述第一面及所述第二面上的所述弹性件均包括平移弹性件以及共用弹性件，所述平移弹性件沿所述出光轴方向的弹性系数及所述旋转轴方向的弹性系数均小于所述入光轴方向的弹性系数；所述共用弹性件沿所述旋转轴方向的弹性系数大于所述入光轴方向及所述出光轴方向的弹性系数，所述共用弹性件与所述旋转轴平行的方向的弹性系数大于所述平移式马达与所述旋转轴平行的方向的弹性系数；
    所述第一面及第二面上沿所述出光轴方向上的两侧分别设有平移弹性件以及共用弹性件；所述平移弹性件相对于所述共用弹性件远离所述第三面，所述共用弹性件相对于所述平移弹性件靠近所述第三面。
  12. 如权利要求11所述的镜头致动装置，其特征在于，每个所述平移弹性件以及共用弹性件均包括多条间隔设置并首尾连接的蚀刻臂，所述平移弹性件的所述蚀刻臂的延伸方向与所述入光轴平行，所述共用弹性件的所述蚀刻臂的延伸方向与所述第一面垂直。
  13. 如权利要求10所述的镜头致动装置，其特征在于，多个所述弹性件分别位于第一面及第二面平行于所述出光轴的方向上的两侧边上；
    所述弹性件沿出光轴方向及入光轴方向的弹性系数均小于垂直于所述出光轴及所述入光轴方向的弹性系数。
  14. 如权利要求13所述的镜头致动装置，其特征在于，每个所述弹性件均包括多条间隔设置并首尾连接的蚀刻臂，所述蚀刻臂的延伸方向垂直于所述入光轴及所述出光轴。
  15. 如权利要求6或8所述的镜头致动装置，其特征在于，所述磁石包括并排紧邻设置的2ⅹn块子磁石，其中，n为大于0的自然数；相邻的所述子磁石的N极、S极相反；每个所述磁石上固定有位置传感器，且所述位置传感器位于所述磁石的中心的两块子磁石的交界处。
  16. 如权利要求6或8所述的镜头致动装置，其特征在于，所述磁石为单块磁铁，所述磁石的N极朝向方向及所述磁石的S极朝向方向相背；所述位置传感器固定于所述壳体上并朝向所述磁石的侧面，所述磁石的侧面与所述N极朝向方向及所述磁石的S极朝向方向垂直。
  17. 如权利要求1-3任一项所述的镜头致动装置，其特征在于，所述光学部件包括单一的反射平面，具有单一光轴，所述弹性件为片状，所述光轴与所述弹性件所在平面垂直。
  18. 如权利要求17所述的镜头致动装置，其特征在于，所述平移方向与所述光轴方向平行，所述旋转轴方向与所述平移方向垂直。
  19. 如权利要求18所述的镜头致动装置，其特征在于，所述平移式马达及移轴式马达均为音圈马达，所述平移式马达及移轴式马达的所述活动部均为磁石，且均固定于所述支架上；所述平移式马达的活动部的N极、S极方向与所述光轴方向相同，所述移轴式马达的活动部的N极、S极方向与所述光轴的垂直。
  20. 如权利要求18所述的镜头致动装置，其特征在于，所述支架包括与所述光轴平行的侧面，所述平移式马达与所述移轴式马达沿光轴方向并排设置，且所述平移式马达与所述移轴式马达均内嵌于所述侧面。
  21. 如权利要求20所述的镜头致动装置，其特征在于，所述侧面包括相对的第一侧面及第二侧面，以及连接于所述第一侧面与所述第二侧面之间的第三侧面，所述平移式马达与所述移轴式马达均内嵌于所述第三侧面；
    多个所述弹性件对称设于所述第一侧面及所述第二侧面；
    设于所述第一侧面及所述第二侧面上的所述弹性件均包括平移弹性件以及共用弹性件，所述平移弹性件沿所述光轴方向的弹性系数及所述平行于第一侧面的方向的弹性系数均小于所述垂直于第一侧面的方向的弹性系数；所述共用弹性件平行于所述光轴的方向的弹性系数及所述垂直于第一侧面的方向的弹性系数均小于所述平行于第一侧面的方向的弹性系数，所述共用弹性件平行于第一侧面的方向的弹性系数大于所述平移弹性件平移于第一侧面的方向的弹性系数；
    所述平移弹性件以及共用弹性件分别设于所述第一侧面及第二侧面上沿所述光轴方向上的两侧；所述平移弹性件相对于所述共用弹性件靠近所述反射平面，所述共用弹性件相对于平移弹性件远离所述反射平面。
  22. 如权利要求21所述的镜头致动装置，其特征在于，每个所述平移弹性件以及共用弹性件均包括多条间隔设置并首尾连接的蚀刻臂，所述平移弹性件的所述蚀刻臂的延伸方向与垂直所述第一侧面，所述共用弹性件的所述蚀刻臂平行所述第一侧面。
  23. 一种潜望式拍摄模组，其特征在于，包括第一反射镜、透镜组、感光芯片以及如权利要求1-22一项所述的镜头致动装置，所述第一反射镜及所述透镜组均安装于所述镜头致动装置的所述支架上，光线经所述第一反射镜反射后穿过所述透镜组并传输至所述感光芯片上；所述平移式马达以及移轴式马达带动所述第一反射镜及透镜组移动以实现调焦或者防抖。
  24. 如权利要求23述的潜望式拍摄模组，其特征在于，所述潜望式摄像模组的所述透镜组与所述感光芯片之间还设有一个所述镜头致动装置，所述透镜组与所述感光芯片之间的所述镜头致动装置上安装有第二反射镜，所述第二反射镜用于将经所述透镜组的光线反射至所述感光芯片。
  25. 如权利要求23述的潜望式拍摄模组，其特征在于，所述潜望式摄像模组的所述透镜组与所述感光芯片之间还设有一个第二反射镜，所述第二反射镜用于将经所述透镜组的光线反射至所述感光芯片。
  26. 一种潜望式拍摄模组，其特征在于，包括第一反射镜、透镜组、感光芯片、第二反射镜以及如权利要求1-22任一项所述的镜头致动装置，所述第二反射镜安装于所述镜头致动装置的支架上；所述第一反射镜用于将光线反射至所述透镜组；所述透镜组用于将所 述第一反射镜反射的光线传输至所述第二反射镜；所述第二反射镜用于将所述透镜组传输的光线传输至所述感光芯片之间，所述镜头致动装置的所述平移式马达以及移轴式马达带动所述反射镜及透镜组移动以实现调焦或者防抖。
  27. 一种拍摄设备，其特征在于，包括外壳、控制单元及如权利要求23-26任一项所述的潜望式拍摄模组，所述潜望式拍摄模组安装于所述外壳内；
    所述外壳上设有入光孔，光线经所述入光孔进入所述潜望式拍摄模组中；所述潜望式拍摄模组的透镜组的光轴与所述入光孔的轴线相交，所述第一反射镜位于所述入光孔与所述透镜组之间，用于将所述入光孔进入的光线反射至所述透镜组；
    所述平移式马达、所述移轴式马达及所述感光芯片均与所述控制单元电连接，所述控制单元用于接收并分析所述感光芯片的图像以确定一个合适的校正运动值，并发送信号至相应的所述平移式马达和/或所述移轴式马达，使得所述平移式马达和/或所述移轴式马达带动所述支架以及与安装于所述支架上的光学部件平移和/或转动。
PCT/CN2019/128135 2018-12-26 2019-12-25 镜头致动装置、潜望式拍摄模组及拍摄设备 WO2020135466A1 (zh)

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