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Lens driving device

A technology of lens driving device and lens barrel, which is applied in the direction of printing device, focusing device, projection device, etc., can solve the problems of adding hanging wires, increasing the difficulty of lens module assembly, low production efficiency, etc., and achieves sensitive response and easy assembly , The effect of improving production efficiency

Active Publication Date: 2015-06-10
AAC OPTICS (CHANGZHOU) CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, it is very difficult to add suspension wires in the process of sequentially stacking and combining many components, thus increasing the difficulty of assembling the lens module and resulting in low production efficiency

Method used

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Embodiment Construction

[0038] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0039] The lens driving device 10 with auto focus (AF: auto focusing) and optical image stabilization (OIS: optical image stabilization) functions of the present invention can be applied to portable mobile terminals such as smart phones and tablet computers. like figure 1 shown, and see figure 2 and image 3 . The lens driving device 10 includes a housing 11 , a lens barrel 30 , a permanent magnet mount 40 , a permanent magnet 50 , a driving coil 39 , an anti-shake coil 52 , a circuit board 54 , a top cover 124 , a lower cover 57 , elastic components, and OIS elastic components 80 and steel ball 120 (bearing ball).

[0040] The housing 11 includes a base 12 and an upper cover 20 which is connected to the base 12 , and the upper cover 20 and the base 12 surround the base 12 to form a receiving space. The base 12 is a rectangular frame structure, whic...

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PUM

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Abstract

The invention relates to an lens driving device using a scientific method to prevent shaking vague images caused by shaking; the lens driving device comprises a housing, a lens barrel moving in an optical axis direction in the housing, a permanent magnet mount surrounding the lens barrel and moving along a direction vertical to the optical axis, and an OIS elastic assembly used for pulling the permanent magnet mount to a set position when the mount moves in the direction vertical to the optical axis; the OIS elastic assembly uses elastic reset force to restore the lens to the default position after lens shaking, thus realizing optical anti-shaking function, and the lens driving device is sensitive in reaction, and good in reliability. The lens driving device needs no hall sensor for inducting lens shaking, thus reducing making cost and size, and no suspension wire is needed, so assembling is easier, thus improving production efficiency.

Description

【Technical field】 [0001] The invention relates to a lens module of a camera, which has an optical correction function for image shaking caused by shaking. 【Background technique】 [0002] Recently, in addition to portable cameras, portable terminals such as smartphones and tablet computers are also equipped with high-performance lens modules. A high-performance lens module configured on a portable terminal generally has an auto focusing function (auto focusing) and an optical image stabilization function (OIS: optical image stabilization). Optical Image Stabilization (OIS) reduces photo shake caused by external shocks or the user's hand shaking. The optical image stabilization function is divided into a lens shift type that "moves the lens in a direction perpendicular to the optical axis of the lens", and a lens shift type that "moves the image sensor in a direction perpendicular to the optical axis of the lens" "" of the image sensor shift type (image sensor shift type). ...

Claims

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Application Information

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IPC IPC(8): G03B5/00G03B13/36G02B7/09
CPCG02B7/09G03B5/00G03B13/36G03B5/02G03B5/04G03B5/06
Inventor 薛铉熹梁大义金荣镇
Owner AAC OPTICS (CHANGZHOU) CO LTD
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