WO2022134192A1 - 照相机用透镜驱动装置、照相机及电子设备 - Google Patents

照相机用透镜驱动装置、照相机及电子设备 Download PDF

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Publication number
WO2022134192A1
WO2022134192A1 PCT/CN2020/142191 CN2020142191W WO2022134192A1 WO 2022134192 A1 WO2022134192 A1 WO 2022134192A1 CN 2020142191 W CN2020142191 W CN 2020142191W WO 2022134192 A1 WO2022134192 A1 WO 2022134192A1
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WO
WIPO (PCT)
Prior art keywords
lens
driving device
circuit board
fixing base
lens module
Prior art date
Application number
PCT/CN2020/142191
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English (en)
French (fr)
Inventor
邱敬中
色摩和雄
Original Assignee
诚瑞光学(深圳)有限公司
常州市瑞泰光电有限公司
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Publication of WO2022134192A1 publication Critical patent/WO2022134192A1/zh

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Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/64—Imaging systems using optical elements for stabilisation of the lateral and angular position of the image
    • G02B27/646—Imaging systems using optical elements for stabilisation of the lateral and angular position of the image compensating for small deviations, e.g. due to vibration or shake
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
    • G02B7/02—Mountings, adjusting means, or light-tight connections, for optical elements for lenses
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B30/00—Camera modules comprising integrated lens units and imaging units, specially adapted for being embedded in other devices, e.g. mobile phones or vehicles
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B5/00—Adjustment of optical system relative to image or object surface other than for focusing
    • G—PHYSICS
    • 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
    • G03B2205/00—Adjustment of optical system relative to image or object surface other than for focusing
    • G03B2205/0007—Movement of one or more optical elements for control of motion blur
    • G03B2205/0015—Movement of one or more optical elements for control of motion blur by displacing one or more optical elements normal to the optical axis
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B2205/00—Adjustment of optical system relative to image or object surface other than for focusing
    • G03B2205/0007—Movement of one or more optical elements for control of motion blur
    • G03B2205/0023—Movement of one or more optical elements for control of motion blur by tilting or inclining one or more optical elements with respect to the optical axis
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B2205/00—Adjustment of optical system relative to image or object surface other than for focusing
    • G03B2205/0053—Driving means for the movement of one or more optical element
    • G03B2205/0069—Driving means for the movement of one or more optical element using electromagnetic actuators, e.g. voice coils

Definitions

  • the present invention relates to the field of lens driving devices for cameras, and in particular, to a lens driving device, a camera and an electronic device for preventing image shake and obtaining a clear image.
  • the lens driving device is widely used in many photographing devices and portable electronic equipment.
  • a drive mechanism suitable for a lens drive device of a general portable electronic device is generally formed of a coil and a magnetic steel, and the coil is fixed to the outer periphery of the lens holder.
  • the coil moves the lens holder along the optical axis direction of the lens due to the action of electromagnetic force, thereby enabling focusing.
  • the lens may move in the direction orthogonal to the optical axis of the lens. In this way, in the lens driving device, disturbance of the captured image is not suppressed, and the quality of the captured image is degraded.
  • the drive circuit of the electromagnetic drive device arranged at the bottom of the lens drive device on the image pickup sensor side generates drive noise to the close image pickup sensor, and the lens size increases as the sensor size increases. It has also become larger than before, and in a general linear camera shake correction device, there is a concern that power consumption will increase, and there is a concern that the shake correction performance will deteriorate due to insufficient rigidity of the support member. There is a possibility that a more rigid holding method may be required due to the shaking of the direction.
  • Patent Document 1 Japanese Patent Laid-Open No. 2019-23760
  • Patent Document 2 Japanese Patent Laid-Open No. 2017-142424
  • the present invention is to solve the problem of suppressing a captured image when a lens keeps moving in a direction orthogonal to the optical axis of the lens due to shake of a lens driving device due to a camera shake that occurs when a user shoots with an electronic device or a camera for a portable terminal. Disturbance and the problem of reducing driving noise, a new lens driving device is provided.
  • a lens driving device includes a casing, the casing has a receiving space,
  • the lens module includes a lens, a lens holder for accommodating the lens, a support frame for freely rotating the lens holder in a direction orthogonal to the optical axis direction, a support member, an electromagnetic drive device, and a base for fixing a circuit board ,
  • the electromagnetic driving device is respectively arranged on the lens holder and the base for fixing the circuit board, and is arranged near the level of the center of gravity of the lens module,
  • the lens module has different moving axes in a plane, and is freely rotatable with respect to the fixing base.
  • the supporting member is an axle pin, and at least four axle pins are provided.
  • the circuit board fixing base has in-plane grooves for rotation along different moving axes.
  • the electromagnetic driving device includes a magnetic steel and a driving coil, the magnetic steel is fixed on the lens module; the driving coil is fixed on the circuit board fixing base.
  • the housing comprises a fixing base and a cover
  • the fixing base and the cover form the receiving space
  • the fixing base is provided with a second repulsive force magnet that is attracted to the support direction and the position is limited;
  • the lens module is provided with a first repulsive force magnet arranged in a direction orthogonal to the optical axis.
  • the lens holder has a hole for fixing the support member
  • the first repulsive force magnet is arranged on the lens holder.
  • it also includes a yoke and a yoke support frame;
  • the yoke is mounted on the yoke support frame for acting on the electromagnetic drive device.
  • the driving coil is arranged on the outer side of the magnetic steel to clamp the magnetic steel relative to the optical axis and generate an electromagnetic effect.
  • the present invention includes an imaging device such as a camera including the above-described lens driving device.
  • the present invention includes a portable electronic device such as a smartphone including the above-mentioned camera.
  • the lens driving device of the present invention can adjust the movement of the optical axis of the lens and limit the rotation, thereby achieving the purpose of preventing shake and improving the quality of the captured image.
  • FIG. 1 is an exploded perspective view of a lens driving device of the present invention.
  • FIG. 2 is a cross-sectional view 1 of the lens driving device of the present invention.
  • FIG. 3 is a cross-sectional view 2 of the lens driving device of the present invention.
  • FIG. 4 is a front view of the lens driving device of the present invention.
  • FIG. 5 is a left side view of the lens driving device of the present invention.
  • FIG. 6 is an exploded perspective view of a base for fixing a circuit board and a support member of the present invention.
  • FIG. 7 is a portable electronic device (portable information terminal) provided with the lens driving device of the present invention.
  • FIG. 1 to 5 are drawings showing a lens driving device 100 of the present invention.
  • the lens driving device 100 includes a housing 10 , a lens module 30 , a base 40 for fixing a circuit board, a support member 41 , a magnetic body 60 , and a drive coil 70 .
  • the housing 10 has a housing space 13 , and the housing 10 includes a fixing base 11 , a cover 12 for forming the housing space 13 in cooperation with the fixing base 11 , and a circuit board 80 .
  • the circuit board fixing base 40 includes a groove 42 for regulating the direction of the support member 41 provided in the lens module 30 , a circuit board 80 and a drive coil 70 fixed to the circuit board fixing base 40 .
  • the lens module 30 includes a lens and a lens holder 32 .
  • the fixing base 11 includes a second repulsive force magnet 63 provided on the fixing base 11 in a direction perpendicular to the optical axis, and is accommodated in the housing space 13 of the housing 10 , and the lens module 30 includes a second repulsion magnet 63 oriented in the direction perpendicular to the optical axis.
  • the first repulsive magnetic steel 62 in the orthogonal direction is accommodated in the base 40 for fixing the circuit board, and the lens module 30 includes a lens (not shown). Similarly, it is accommodated in the interior of the accommodation space 13 of the casing 10 .
  • the support member 41 supports the lens module 30 and the circuit board fixing base 40 so that the lens module 30 is rotatable relative to the fixing base 11 in a direction orthogonal to the optical axis of the lens.
  • the support member 41 may be a shaft pin. At least four support members 41 are provided as pivot pins, and on the other hand, grooves 42 provided on the circuit board fixing base 40 and the lens module 30 that restrict the direction of the support members provided on the circuit board fixing base are provided.
  • the axis of rotation is limited, and by rolling the shaft pin 41, the lens module 30 can rotate in the limited first rotational optical axis direction 43 and the limited second rotational optical axis 44 based on the direction orthogonal to the optical axis of the lens. Rotate freely within.
  • the board fixing base 40 the four support members 41 , the lens module 30 , and the fixing base 11 are assembled in this order.
  • the magnetic body 60 attracts and restricts the magnetic action of the support member of the base 40 for fixing a circuit board, and these members are attracted to the optical axis direction so as not to fall off in any direction.
  • the magnetic steel 61 is mounted and fixed to the lens module 30 .
  • the first repulsive force magnet 62 is installed and fixed to the lens module 30 .
  • the second repulsive force magnet 63 is attached and fixed to the fixing base 11 .
  • the lens driving device 100 is provided with a yoke 90 which is attached and fixed to the yoke support frame 20 and has a function of pulling the magnetic steel 61 toward the center of the optical axis when the lens module is rotated perpendicular to the optical axis.
  • a reaction force that presses against the center of the optical axis when rotated by the magnetic action of the first repulsive force magnet 62 provided in the lens module 30 and the second repulsive force magnet 63 provided in the fixing base 11 is provided.
  • the driving coils 70 are provided on the circuit board 80 fixed to the circuit board fixing base 40 , and are respectively provided on the outer sides of the magnetic steel 61 .
  • the drive coil 70 may be a coil winding integrated with the circuit board 80 mounted and fixed on the circuit board fixing base 40 , or may be a conductive pattern formed directly on the circuit board 80 . Due to the electromagnetic action between the driving coil 70 and the magnetic steel 61, the yoke support frame 20 can be rotated and moved relative to the base 40 for fixing the circuit board in a direction orthogonal to the optical axis of the lens, so that the light beam with the lens is realized. Adjustments related to the rotational movement of the shaft.
  • the lens driving device 100 is further provided with a circuit board 80 .
  • the circuit board 80 is connected to the drive coil 70 .
  • Four magnets 61 are provided corresponding to the driving coils 70 , and are arranged together at positions symmetrical with respect to the optical axis of the lens, that is, at positions symmetrical with respect to the center line.
  • the drive coil 70 is connected to the connection terminal 14 provided on the fixing base 11 and connected to the outside, but may be connected to a magnetic detection element 81 having a driving circuit, and the magnetic detection element 81 having a second driving circuit is an example , and can also be a driver IC for magnetic detection.
  • the magnetic detection element 81 having the second driving circuit is located at a position facing the magnet 61 , and can detect the position of the magnet 61 moving together with the lens module 30 .
  • the lens module 30 can be efficiently balanced with respect to the center of gravity of the moving object, and can be rotated and moved relative to the circuit board fixing base 40 in a direction orthogonal to the optical axis of the lens, or can be The tendency to move the optical axis of the lens is suppressed. Therefore, the movement of the optical axis of the lens can be adjusted.
  • the above-described lens driving device 100 can be used for, for example, an imaging device 300 for a portable information device 200 such as a so-called smartphone, a so-called feature phone, or a tablet device shown in FIG. 7 .
  • a portable information device 200 such as a so-called smartphone, a so-called feature phone, or a tablet device shown in FIG. 7 .
  • the lens driving device 100 of the present invention since the adjustment of the movement of the optical axis of the lens can be realized, the object of preventing shake can be achieved, and the quality of the captured image can be improved.

Abstract

一种小型且手抖校正良好的透镜驱动装置（100）、照相机及电子设备。透镜驱动装置（100）包括壳体（10），壳体（10）具有收容空间（13），在收容空间（13）内具有透镜模块（30）；透镜模块（30）包括透镜、收容透镜的透镜支架（32）、以及用于使透镜支架（32）向与光轴方向正交的方向自如地转动的支承框架、支承部件（41）和电磁驱动装置以及电路板固定用基座（40），电磁驱动装置分别设置于透镜支架（32）及电路板固定用基座（40），并且设置于透镜模块的重心位置（31）的水平附近，透镜模块（30）在平面内具有不同的移动轴，并相对于电路板固定用基座（40）自如地转动。

Description

照相机用透镜驱动装置、照相机及电子设备 技术领域
本发明涉及照相机用透镜驱动装置领域，尤其涉及一种防止图像抖动而得到清晰的图像的透镜驱动装置、照相机及电子设备。
 背景技术
随着拍摄技术的迅速发展，对照片品质的要求变得比以往高，特别是在拍摄夜景时，为了提高暗处的拍摄品质，需要追加明亮的透镜或图像抖动防止功能，使用了图像抖动校正的透镜驱动装置被广泛地应用于许多拍摄装置及便携式电子设备。
适用于通常的便携式电子设备的透镜驱动装置的驱动机构一般由线圈和磁钢形成，线圈固定于透镜架的外周。在向线圈施加电流时，由于电磁力的作用，线圈使透镜架移动而沿着透镜的光轴方向移动，从而能够进行对焦。但是，在用户手持电子设备的同时进行拍摄时，无法避免基于手抖的透镜驱动装置的抖动。因此，存在透镜向与透镜的光轴正交的方向不断移动的情况。这样，在透镜驱动装置中，不会抑制拍摄图像的紊乱，拍摄到的图像的质量降低。
另外，在通常的校正手抖的装置中，由配置在透镜驱动装置的底部、拍摄传感器侧的电磁驱动装置的驱动用电路会向接近的拍摄传感器产生驱动噪声，随着传感器尺寸的发展透镜尺寸也变得比以往大，在一般的线式手抖动校正装置中，存在消耗电力变高的担忧、支承部件的刚性不足下的抖动校正性能恶化的担忧等，为了校正向与光轴正交的方向的抖动，存在需要刚性更高的保持方法的可能性。
因此，需要提供一种能够解决以上的课题的新的透镜驱动装置。
现有技术文献
专利文献
专利文献1：日本特开2019-23760号公报
专利文献2：日本特开2017-142424号公报
 技术问题
本发明为了解决在由于基于用户利用电子设备或便携终端用的照相机进行拍摄时发生的手抖的透镜驱动装置的抖动而透镜向与透镜的光轴正交的方向不断移动的情况下抑制拍摄图像的紊乱、以及能够降低驱动噪声的课题，而提供一种新的透镜驱动装置。
 技术解决方案
本发明的目的如下实现。需要说明的是，在以下的说明中，为了容易理解发明，用括号备注附图中的符号等，但本发明的各构成要素并不限定于这些备注的构成要素，应被广泛地解释至本领域技术人员在技术上能够理解的范围。
一种透镜驱动装置，包括壳体，所述壳体具有收容空间，
在所述收容空间内具有透镜模块；
所述透镜模块包括透镜、收容所述透镜的透镜支架、以及用于使透镜支架向与光轴方向正交的方向自如地转动的支承框架、支承部件和电磁驱动装置以及电路板固定用基座，
所述电磁驱动装置分别设置于所述透镜支架及电路板固定用基座，并且设置于所述透镜模块的重心位置的水平附近，
所述透镜模块在平面内具有不同的移动轴，相对于所述固定用基座自如地转动。
优选地，所述支承部件为轴销，所述轴销至少设置4个。
优选地，所述电路板固定用基座在平面内具有用于沿不同的移动轴转动的槽。
优选地，所述电磁驱动装置包括磁钢和驱动线圈，所述磁钢固定于所述透镜模块；所述驱动线圈固定于所述电路板固定用基座。
优选地，所述壳体包括固定用基座和罩；
所述固定用基座和所述罩形成所述收容空间；
所述固定用基座设置有向支承方向吸引而位置被限制的第二排斥力磁钢；
所述透镜模块设置有沿光轴正交的方向设置的第一排斥力磁钢。
优选地，所述透镜支架具有固定所述支承部件的孔；
所述第一排斥力磁钢设置在所述透镜支架。
优选地，还包括磁轭和磁轭支撑框架；
所述磁轭安装于所述磁轭支撑框架，用于作用于所述电磁驱动装置。
优选地，所述驱动线圈设置于所述磁钢的外侧，以相对于光轴夹持所述磁钢并产生电磁作用。
另外，本发明包括具备上述透镜驱动装置的照相机等拍摄装置。
另外，本发明包括具备上述照相机的智能手机等便携电子设备。
 有益效果
作为本发明的优点，本发明的透镜驱动装置能够进行对透镜的光轴的移动的调整及旋转的限制，因此能够达成抖动防止的目的，拍摄图像的质量变好。
 附图说明
图1是本发明的透镜驱动装置的分解立体图。
图2是本发明的透镜驱动装置的剖视图1。
图3是本发明的透镜驱动装置的剖视图2。
图4是本发明的透镜驱动装置的主视图。
图5是本发明的透镜驱动装置的左侧视图。
图6是本发明的电路板固定用基座和支承部件的分解立体图。
图7是具备本发明的透镜驱动装置的便携电子设备（便携信息终端）。
附图标记
10 壳体
11 固定用基座
12 罩
13 收容空间
14  设置于电路板固定用基座的与外部连接的连接端子
20 磁轭支承框架
30 透镜模块
31 透镜模块的重心位置
32- 透镜支架
40 电路板固定用基座
41 支承部件
42  对设置于支承框架的支承部件的方向进行限制的槽
43 被限制的第一旋转光轴方向
44 被限制的第二旋转光轴方向
60  对支承部件进行吸引限制的磁性体
61 磁钢
62 第一排斥力磁钢
63 第二排斥力磁钢
70 驱动线圈
80 电路板
81  具有驱动用电路的磁检测元件
90 磁轭
100 透镜驱动装置
200 便携信息设备
300 拍摄装置
 本发明的实施方式
以下，一边参照附图一边对本发明进行详细说明。
图1～图5是表示本发明的透镜驱动装置100的附图。
透镜驱动装置100具备壳体10、透镜模块30、电路板固定用基座40、支承部件41、磁性体60以及驱动线圈70。
在壳体10具有收容空间13，壳体10具备固定用基座11、用于与固定用基座11配合地形成收容空间13的罩12、以及电路板80。
电路板固定用基座40具备对设置于透镜模块30的支承部件41的方向进行限制的槽42、以及固定于电路板固定用基座40的电路板80及驱动线圈70。
透镜模块30包括透镜和透镜支架32。
固定用基座11具备设置于固定用基座11的向与光轴正交的方向的第二排斥力磁钢63，并且收容于壳体10的收容空间13，透镜模块30具备向与光轴正交的方向的第一排斥力磁钢62，并且收容于电路板固定用基座40内，透镜模块30包括透镜（未图示）。同样地，收容于壳体10的收容空间13的内部。
支承部件41以透镜模块30能够沿着与透镜的光轴正交的方向相对于固定用基座11自如地转动的方式对透镜模块30和电路板固定用基座40进行支承。
支承部件41可以是轴销。轴销即支承部件41至少设置4个，与此相对，通过设置在电路板固定用基座40及透镜模块30上的对设置于电路板固定用基座的支承部件的方向进行限制的槽42来限制转动的轴，通过轴销41的滚动，透镜模块30能够在基于与透镜的光轴正交的方向的、被限制的第一旋转光轴方向43及被限制的第二旋转光轴44内自如地转动。
另外，相对于光轴方向，以电路板固定用基座40、4个支承部件41、透镜模块30、固定用基座11的顺序进行组装，通过向设置于透镜模块30的支承部件41以及设置于电路板固定用基座40的支承部件进行吸引限制的磁性体60的磁作用，这些部件以无论朝哪个方向都不会脱落的方式向光轴方向吸附。
磁钢61安装并固定于透镜模块30。
第一排斥力磁钢62安装并固定于透镜模块30。
第二排斥力磁钢63安装并固定于固定用基座11。
透镜驱动装置100设置有磁轭90，磁轭90安装并固定于磁轭支承框架20，并且具备在透镜模块向光轴方向垂直方向转动时将磁钢61向光轴中心拉拽的功能。
或者，具备在由于设置于透镜模块30的第一排斥力磁钢62以及设置于固定用基座11的第二排斥力磁钢63的磁作用而转动时向光轴中心压靠的反作用力。
驱动线圈70设置在固定于电路板固定用基座40的电路板80，且分别对应地设置于磁钢61的外侧。
驱动线圈70可以是与安装并固定在电路板固定用基座40上的电路板80一体化的线圈绕组，也可以是直接形成于电路板80上的导电性图案。由于驱动线圈70与磁钢61之间的电磁作用，磁轭支承框架20能够沿着与透镜的光轴正交的方向相对于电路板固定用基座40转动移动，因此实现了与透镜的光轴的转动移动相关的调整。
在透镜驱动装置100还设置有电路板80。
电路板80与驱动线圈70连接。
与驱动线圈70对应地，磁钢61设置4个，且一同配置在对于透镜的光轴为中心对称的位置，即配置在相对于中心线为对称的位置。
驱动线圈70与设置于固定用基座11的与外部连接的连接端子14连接，但也可以与具有驱动用电路的磁检测元件81连接，具有第二驱动用电路的磁检测元件81为一个例子，也可以是兼磁检测的驱动IC。具有第二驱动用电路的磁检测元件81位于与磁钢61对置的位置，能够检测与透镜模块30一起移动的磁钢61的位置。
在透镜的光轴因手抖而移动的情况下、或者存在移动的倾向的情况下，能够使电流流入设置于透镜模块的重心位置31的水平附近的驱动线圈70，驱动线圈70被固定，因此基于作用力及反作用力的原理，能够实现透镜模块30相对于移动物的重心高效地保持均衡并且沿着与透镜的光轴正交的方向相对于电路板固定用基座40转动移动，或者能够抑制透镜的光轴的移动倾向。因此，能够对透镜的光轴的移动进行调整。
上述的透镜驱动装置100例如可以用于图7所示的所谓的智能手机、所谓的功能手机、或者平板设备等便携信息设备200用的拍摄装置300。
根据本发明的透镜驱动装置100，能够实现对透镜的光轴的移动的调整，因此能够达成抖动防止的目的，能够提高拍摄图像的质量。
以上仅是本发明的优选的实施方式，本发明的保护范围并不限定于上述实施方式，本领域的技术人员基于本发明所公开的内容而作出的同等的修改或变形全部包含在本申请的权利要求书所记载的本发明中。

Claims (10)

  1. 一种透镜驱动装置，其特征在于，包括壳体，所述壳体具有收容空间，
    在所述收容空间内具有透镜模块；
    所述透镜模块包括透镜、收容所述透镜的透镜支架、以及用于使透镜支架向与光轴方向正交的方向自如地转动的支承框架、支承部件和电磁驱动装置以及电路板固定用基座，
    所述电磁驱动装置分别设置于所述透镜支架及电路板固定用基座，并且设置于所述透镜模块的重心位置的水平附近，
    所述透镜模块在平面内具有不同的移动轴，并相对于所述电路板固定用基座自如地转动。
  2. 根据权利要求1所述的透镜驱动装置，其特征在于，
    所述支承部件为轴销，所述轴销至少设置4个。
  3. 根据权利要求1或2所述的透镜驱动装置，其特征在于，
    所述电路板固定用基座在平面内具有用于沿不同的移动轴转动的槽。
  4. 根据权利要求3所述的透镜驱动装置，其特征在于，
    所述电磁驱动装置包括磁钢和驱动线圈，所述磁钢固定于所述透镜模块；所述驱动线圈固定于所述电路板固定用基座。
  5. 根据权利要求4所述的透镜驱动装置，其特征在于，所述壳体包括固定用基座和罩；
    所述固定用基座和所述罩形成所述收容空间；
    所述固定用基座设置有向支承方向吸引而位置被限制的第二排斥力磁钢；
    所述透镜模块设置有沿光轴正交的方向设置的第一排斥力磁钢。
  6. 根据权利要求5所述的透镜驱动装置，其特征在于，
    所述透镜支架具有固定所述支承部件的孔；
    所述第一排斥力磁钢设置在所述透镜支架。
  7. 根据权利要求6所述的透镜驱动装置，其特征在于，
    还包括磁轭和磁轭支撑框架；
    所述磁轭安装于所述磁轭支撑框架，用于作用于所述电磁驱动装置。
  8. 根据权利要求4所述的透镜驱动装置，其特征在于，
    所述驱动线圈设置于所述磁钢的外侧，以相对于光轴夹持所述磁钢并产生电磁作用。
  9. 一种照相机，其特征在于，具备权利要求1～8中任一项所述的透镜驱动装置。
  10. 一种便携电子设备，其特征在于，具备权利要求9所述的照相机。
PCT/CN2020/142191 2020-12-25 2020-12-31 照相机用透镜驱动装置、照相机及电子设备 WO2022134192A1 (zh)

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