发明名称 |
Automatic focus imaging system using out-of-plane translation of an MEMS reflective surface |
摘要 |
The present invention provides an automatic focus imaging system comprising a lens unit, an image sensor, and a Micro-Electro-Mechanical System (MEMS) unit fabricated by microfabrication technology to improve the portability and focusing speed of the automatic focus imaging system. The MEMS unit for automatic focusing comprises a substrate having a control circuitry, at least one reflective surface movably connected to the substrate, and at least one actuation unit comprising a micro-actuator having a large in-plane translation and at least one micro-converter configured to convert the large in-plane translation of the micro-actuator to the large out-of-plane translation of the reflective surface. The MEMS unit changes a distance between lens unit and the image sensor by controlling the out-of-plane translation of the reflective surface in order to form an in-focus image on the image sensor.
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申请公布号 |
US8345146(B2) |
申请公布日期 |
2013.01.01 |
申请号 |
US20090569864 |
申请日期 |
2009.09.29 |
申请人 |
ANGSTROM, INC.;STEREO DISPLAY, INC.;CHO GYOUNG IL;KIM HYE YOUNG;SEO CHEONG SOO |
发明人 |
CHO GYOUNG IL;KIM HYE YOUNG;SEO CHEONG SOO |
分类号 |
H04N5/232;G03B13/00 |
主分类号 |
H04N5/232 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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