发明名称 |
OPTICAL SENSOR AND IMAGE FORMING APPARATUS |
摘要 |
An optical sensor is disclosed, including an irradiating system; a first photodetecting system including a first photodetector which is arranged on an optical path of a light which is specularly reflected from a subject; a second photodetecting system including an optical element which is arranged on an optical path of a light which is diffuse reflected from the subject within an incident face in the subject and which separates a linearly polarized component in a second polarizing direction which is orthogonal to a first polarizing direction and a second photodetector which receives a light separated by the optical element; and a restricting member which is arranged on an optical path of an incident light with respect to at least one of the first photodetector and the second photodetector and which restricts a light receiving range in the at least one photodetector.
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申请公布号 |
US2013216245(A1) |
申请公布日期 |
2013.08.22 |
申请号 |
US201313766896 |
申请日期 |
2013.02.14 |
申请人 |
HOSHI FUMIKAZU;SUGAWARA SATORU;ISHII TOSHIHIRO;OBA YOSHIHIRO;RICOH COMPANY, LTD. |
发明人 |
HOSHI FUMIKAZU;SUGAWARA SATORU;ISHII TOSHIHIRO;OBA YOSHIHIRO |
分类号 |
G03G15/00;G01N21/55 |
主分类号 |
G03G15/00 |
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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