发明名称 SINGLE LENS REFLEX CAMERA
摘要 <P>PROBLEM TO BE SOLVED: To provide a single lens reflex camera of compact size and capable of picking up an image with high picture quality. <P>SOLUTION: In a single lens reflex camera, a mirror box 100 for housing a sub-mirror 102 includes a front portion 103a in planar shape extending from a front opening 108a where a light beam having passed through a photographic optical system enters so as to approach an optical axis 50 of the photographic optical system, and a base plate 103 disposed between the sub-mirror and a focal point detection unit 105. A part of a condenser lens is positioned on an optical axis side with respect to a line extending from a bottom edge 108b of the front opening 108a parallel to the optical axis 50 of the photographic optical system. <P>COPYRIGHT: (C)2012,JPO&INPIT
申请公布号 JP2012108413(A) 申请公布日期 2012.06.07
申请号 JP20100258706 申请日期 2010.11.19
申请人 CANON INC 发明人 MORITA KEISUKE
分类号 G02B7/34;G02B7/28;G03B13/36;H04N5/225 主分类号 G02B7/34
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