发明名称 |
Spectral colorimetric apparatus and image forming apparatus using the same |
摘要 |
A spectral colorimetric apparatus for detecting a color of an image of a subject, including: an illumination optical system illuminating the subject on a detection surface; a spectral optical system including a spectral element spectrally separating the beam diffused by the subject and a light receiving element array detecting a spectral intensity distribution; and a guiding optical system for guiding a beam diffused by the subject, wherein: the detection surface is parallel to a spectral plane including a principal ray of a beam entering the spectral optical system and a principal ray of a beam spectrally separated; the principal ray of the beam enters the spectral optical system within the spectral plane obliquely to a line joining a center of the light receiving element array with a surface vertex of the spectral element; and a light receiving surface of the light receiving element array is orthogonal to the spectral plane.
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申请公布号 |
US8462406(B2) |
申请公布日期 |
2013.06.11 |
申请号 |
US20100769247 |
申请日期 |
2010.04.28 |
申请人 |
TAKIZAWA TOKUJI;KIMURA KAZUMI;TOCHIGI NOBUYUKI;TERAMURA MASAYASU;CANON KABUSHIKI KAISHA |
发明人 |
TAKIZAWA TOKUJI;KIMURA KAZUMI;TOCHIGI NOBUYUKI;TERAMURA MASAYASU |
分类号 |
H04N1/46;G01J3/28;G03G15/00;G03G15/04 |
主分类号 |
H04N1/46 |
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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