发明名称 |
Imaging optical unit, inspection method for the same, and image reading apparatus |
摘要 |
Provided is an imaging optical unit used in an image reading apparatus for imaging image information on a photoelectric conversion element. The imaging optical unit includes a case and an imaging optical system having multiple reflecting members housed and disposed in the case. The reflecting member has a mirror surface for detecting assembly performance in the case on a side opposite to an optical surface for performing an imaging action. A light beam from a light source unit is projected to the mirror surface of the reflecting member and reflection light from the mirror surface is used for detecting one of a shift of posture and a distortion of the reflecting member. |
申请公布号 |
US8104256(B2) |
申请公布日期 |
2012.01.31 |
申请号 |
US20090435969 |
申请日期 |
2009.05.05 |
申请人 |
MORI SEIICHIRO;CANON KABUSHIKI KAISHA |
发明人 |
MORI SEIICHIRO |
分类号 |
G01N21/55 |
主分类号 |
G01N21/55 |
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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