Lens driving device

A lens driving device and lens technology, which can be applied to printing devices, electromechanical devices, projection devices, etc., can solve the problems of poor imaging effect, no anti-shake function, and low practicability.

Active Publication Date: 2014-05-14
AAC OPTICS (CHANGZHOU) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this lens driving device does not have an anti-shake function, is not practical, and has poor imaging effects

Method used

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Examples

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Embodiment Construction

[0031] The present invention will be described in detail below in conjunction with the accompanying drawings.

[0032] Such as Figure 1 to Figure 4 As shown, it is a lens driving device A provided by the present invention. The lens driving device A includes a housing, a circuit board 81, a connector 100, a lens module 20, a supporting frame 30, a spring piece, a magnetic steel 61, a second A driving coil 51 , a second driving coil 52 , and a position detection unit 91 .

[0033] The housing includes a base 11 and a cover 12 cooperating with the base 11 to enclose a receiving space.

[0034] The circuit board 81 is fixed on the casing.

[0035] The support frame 30 is accommodated in the housing accommodation space, and the support frame 30 includes a first frame 31, a second frame 32, a third frame 33 and a fourth frame 34 which are sequentially stacked and assembled. The first frame 31 Compared with the fourth frame 34 , which is further away from the base 11 , the first ...

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PUM

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Abstract

The invention discloses a lens driving device which comprises an outer shell, a circuit board, connecting pieces, a lens module, a bearing frame, a spring piece, magnetic steel, a first driving coil, second driving coils and a position detecting unit. The circuit board is installed and fixedly supported on the outer shell, the lens module is connected in the bearing frame through the spring piece, the bearing frame is connected to the outer shell through the connecting pieces and can move in the direction perpendicular to the optical axis of a lens, the first driving oil is mounted and fixedly supported on the lens module, the second driving coils and the position detecting unit are mounted and fixedly supported on the circuit board, the magnetic steel is installed and fixedly supported on the bearing frame, the first coil drives the lens module to move in the direction of the optical axis of the lens, the position detecting unit senses the shake of the bearing frame, the shake is fed back to the second driving coils, the second driving coils drive the bearing frame to move in the direction perpendicular to the optical axis of the lens, and therefore the aim of preventing the shake is achieved.

Description

【Technical field】 [0001] The invention relates to the field of driving devices, in particular to a lens driving device. 【Background technique】 [0002] With the development of camera technology, lens driving devices are widely used in various camera devices. The combination of the lens driving device and various portable electronic devices such as mobile phones, video cameras, computers, etc., is favored by consumers. [0003] However, the driving mechanism of the lens driving device used in common digital products is usually composed of a coil and a magnetic steel. The coil is fixed on the outer periphery of the lens carrier. Drive the lens carrier to move along the direction of the optical axis of the lens. However, this lens driving device does not have an anti-shake function, is not practical, and has a poor imaging effect. [0004] Therefore, it is necessary to provide a new lens driving device to solve the above disadvantages. 【Content of invention】 [0005] The ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B7/02G03B5/00H02K33/18G03B30/00
Inventor 董乐平
Owner AAC OPTICS (CHANGZHOU) CO LTD
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