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lens driver

A lens driving device and lens holding technology, applied in focusing devices, projection devices, printing devices, etc., can solve the problems of inability to correspond to the resolution of high-pixel image sensors, focus blur, etc.

Active Publication Date: 2015-12-16
MICRO WIN TECH +3
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This is because the fixed-focus camera module will produce focus blur, which cannot correspond to the resolution of high-pixel image sensors

Method used

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Embodiment Construction

[0113] Hereinafter, the present invention will be described in detail through the embodiments, but the following embodiments do not limit the invention in the claims, and all combinations of the features described in the embodiments are not necessarily limited to the solution means of the invention.

[0114] The first form of implementation:

[0115] Figure 1 to Figure 3 is a structural diagram showing a lens driving device 10 according to the first embodiment of the present invention, figure 1 is a longitudinal section view, figure 2 is the floor plan, image 3 (a) is an exploded oblique view, image 3 (b) is a detailed view showing the spring member 19A ( 19B) for locking.

[0116] The lens drive device 10 includes a lens holder 12 for holding the lens 11, a stopper member 13, a case 14, a drive coil 15, a drive magnet 16, an auxiliary drive coil 17, drive spring members 18A, 18B, and a stopper. Spring members 19A, 19B.

[0117] Such as figure 1 As shown, a camera...

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Abstract

The invention provides a lens driving device, comprising a lens holder for holding a lens; a driving coil wound around the periphery side of the lens holder; a case for fixing components; and a driving magnet held in the case and spaced from and arranged opposite to the driving coil. The lens driving device is characterized by comprising a locking member which is arranged on an opposite side of a subject side of the lens holder and abuts against the lens holder. The locking member is hung and supported on the case by a locking spring member in a swingable manner, and can move to the subject side by a driving spring member, and forces are applied on the opposite side of the subject side so as to hang and support the lens holder.

Description

technical field [0001] The present invention relates to a lens drive device for a photographic optical device capable of suppressing hand shake. Background technique [0002] In recent years, cameras mounted on mobile phones and the like have increased the number of pixels of image sensors to improve the quality of photographed images. At the same time, the mounted lens system has also changed from a fixed-focus camera module to a movable-focus camera module. Therefore, the fixed-focus camera module will produce focus blur, which cannot correspond to the resolution of the high-pixel image sensor. [0003] The driving method of the lens system in the active focus camera module mostly uses such as Figure 16 The illustrated lens driving device 50 using a voice coil motor (for example, refer to Patent Document 1: Japanese Patent Laid-Open No. 2004-280031). [0004] The lens driving device 50 includes: a yoke 51 made of a magnetic material such as soft iron and having a U-shap...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02B7/09G03B5/00G03B13/36
Inventor 寺嶋厚吉
Owner MICRO WIN TECH