发明申请
- 专利标题: Method and apparatus for detection of optical elements
- 专利标题(中): 用于检测光学元件的方法和装置
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申请号: US11099833申请日: 2005-04-06
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公开(公告)号: US20060228003A1公开(公告)日: 2006-10-12
- 发明人: D. Silverstein
- 申请人: D. Silverstein
- 主分类号: G06K9/00
- IPC分类号: G06K9/00
摘要:
A method and apparatus for detection of optical elements. The apparatus includes an illumination unit for projecting light into a target area to illuminate the target area, and an image capture unit for capturing images of the target area in an illuminated condition and a non-illuminated condition. An image comparison unit compares images of the target area in an illuminated condition and a non-illuminated condition to detect Fresnel reflections of light from the illumination unit.
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