Invention Grant
US08130426B2 Image reader, light guide used for the same, and method of making light guide
有权
图像读取器，相同的导光板以及制作导光板的方法
- Patent Title: Image reader, light guide used for the same, and method of making light guide
- Patent Title (中): 图像读取器，相同的导光板以及制作导光板的方法
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Application No.: US12317358Application Date: 2008-12-22
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Publication No.: US08130426B2Publication Date: 2012-03-06
- Inventor: Hideki Sawada , Yasuhiro Nagao
- Applicant: Hideki Sawada , Yasuhiro Nagao
- Applicant Address: JP Kyoto
- Assignee: Rohm Co., Ltd.
- Current Assignee: Rohm Co., Ltd.
- Current Assignee Address: JP Kyoto
- Agency: Hamre, Schumann, Mueller & Larson, P.C.
- Priority: JP2007-330080 20071221; JP2008-59448 20080310; JP2008-98998 20080407; JP2008-152432 20080611
- Main IPC: H04N1/04
- IPC: H04N1/04
Abstract:
An elongate light guide includes a light incident portion provided at an end in the longitudinal direction of the guide, a light reflecting portion extending in the longitudinal direction, a light emitting portion extending in the longitudinal direction for emitting linear light, and a scatterer for scattering the light entering through the light incident portion. For instance, the scatterer is provided as a grained portion formed at least part of the reflecting portion.
Public/Granted literature
- US20090237747A1 Image reader, light guide used for the same, and method of making light guide Public/Granted day:2009-09-24
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