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Optical anti-shake MEMS driver

An optical anti-shake and driver technology, applied in the field of micro-electromechanical systems, can solve problems such as the inability to realize the rotation compensation of the rolling axis, and achieve the effect of being suitable for mass production, clear images, and reduced power consumption

Pending Publication Date: 2019-07-23
HANGZHOU DIANZI UNIV
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  • Application Information

AI Technical Summary

Problems solved by technology

This VCM optical image stabilization technology can usually only perform translation compensation on the X-axis and Y-axis, and because the lens is rotationally symmetric, it cannot achieve roll axis (Roll axis) rotation compensation

Method used

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Embodiment Construction

[0030] The present invention will be further described below in conjunction with accompanying drawing.

[0031] Such as figure 1 with 2 As shown, an optical image stabilization MEMS driver is arranged in an OIS package. The OIS package includes a main frame 1 , a camera lens 2 , an image sensor 3 , a suspension connector 5 and a mounting frame 7 . The camera lens 2 is fixed on the main frame 1. The image sensor 3 is fixed on the mounting frame 7 . The four corners of the installation frame 7 are connected with the main frame 1 through suspension connectors 5 , so that the image sensor 3 is suspended in the main frame 1 . Suspension member 5 adopts elastic material, adopts fine metal wire in the present embodiment. The function of the main frame 1 is to package the camera lens, the image sensor, and the MEMS driver together. The special design of the present invention is that the image sensor 3 and the MEMS driver 4 are suspended in the main frame 1, and the suspension co...

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Abstract

The invention discloses an optical anti-shake micro-electromechanical system (MEMS) driver. An existing optical anti-shake driver is only provided with five axes at most. The optical anti-shake MEMS driver comprises a plane three-axis driver and a vertical three-axis driver. The planar three-axis driver comprises a first frame, a driving arm and a middle fixing plate. The vertical three-axis driver comprises a moving part and a driving part. The moving part comprises a second frame, second cantilevers, a deflection disc, a spring strip, a center disc and a third contact point. One ends of thesecond cantilevers are connected with the deflection disc, and the other ends of the second cantilevers are connected with the second frame. The driving part comprises a base plate and a sector-ring-shaped electrode plate set. The sector-ring-shaped electrode plate set comprises n sector-ring-shaped electrode plates. The n sector-ring-shaped electrode plates are all fixed on the bottom plate. Thesector-ring-shaped electrode plate set is aligned with the deflection disc. According to the invention, the image sensor can move on the plane three-axis and the vertical three-axis, and the problem of image blurring caused by camera shake is solved.

Description

technical field [0001] The invention belongs to the technical field of micro-electro-mechanical systems, and in particular relates to an optical anti-shake MEMS driver. Background technique [0002] Image stabilization (Image Stabilization, IS) technology plays a key role in improving the camera performance of mobile phones. There are two main forms of this technology: 1. Optical Image Stabilization (OIS), commonly known as optical image stabilization, which directly performs mechanical compensation on camera shake within the exposure time of one frame to eliminate image blur; 2. Electronic image stabilization Stabilization (Electronic Image Stabilization, EIS), which improves the clarity by computing and processing multiple frames of images after shooting. At present, the optical image stabilization technology used in smartphones is mainly driven by a voice coil motor (Voice Coil Motor, VCM). This VCM optical anti-shake technology can usually only perform translation comp...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N5/232
CPCH04N23/687
Inventor 吴丽翔孙全胜
Owner HANGZHOU DIANZI UNIV
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