发明名称 |
Optical apparatus and image-taking system |
摘要 |
There is provided an optical apparatus that provides quick and precise TTL phase difference detection and pupil slicing focus detection. An optical apparatus includes a first optical element for splitting a first polarized light component contained in light that passes an exit pupil of a first optical system and directs to a photoelectric conversion element so that the first polarized light component direct to different light-receiving areas on the photoelectric conversion element. The optical apparatus may further include a second optical element for separating a second polarized light component contained in the light from said first optical element, from the first polarized light component. |
申请公布号 |
EP1645899(A2) |
申请公布日期 |
2006.04.12 |
申请号 |
EP20050256256 |
申请日期 |
2005.10.06 |
申请人 |
CANON KABUSHIKI KAISHA |
发明人 |
NAGANO, AKIHIKO;TAKAMIYA, MAKOTO;WASHISU,KOICHI |
分类号 |
G02B7/34;G02B5/18;G03B13/06;G03B13/36;H04N5/232;H04N5/335;H04N5/372;H04N5/374 |
主分类号 |
G02B7/34 |
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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