发明名称 |
METHOD AND SYSTEM FOR MEASURING A FOCAL LENGTH OF AN OPTICAL LENS |
摘要 |
A system for measuring a focal length of an optical lens includes an image processing device and an operating platform. The image processing device is configured for capturing a light spot image of the optical lens. The operating platform includes a mount, a holder and a measurer. The mount is configured for mounting the image processing device. The holder is configured for holding the optical lens. The mount is moved back and forth along the direction towards and away from the optical lens held by the holder. The measurer is configured for measuring and recording a distance between image processing device and the optical lens when a minimal light spot image of the optical lens is obtained. The distance is the focal length of the optical lens.
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申请公布号 |
US2011149273(A1) |
申请公布日期 |
2011.06.23 |
申请号 |
US20100849753 |
申请日期 |
2010.08.03 |
申请人 |
FOXSEMICON INTEGRATED TECHNOLOGY, INC. |
发明人 |
YEH CHAO-YI;HUANG CHUNG-CHIH;YAN RONG-YIH |
分类号 |
G01M11/02 |
主分类号 |
G01M11/02 |
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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