发明名称 Photometering apparatus
摘要 A photometering apparatus having a photometering lens and a light receiver to measure a finder screen of a single lens reflex camera, wherein the photometering lens and the light receiver are arranged so that the focusing screen is substantially conjugate with a light receiving surface of the light receiver, and a transparent optical element is inserted between the photometering lens and the light receiver.
申请公布号 US6014273(A) 申请公布日期 2000.01.11
申请号 US19980098462 申请日期 1998.06.17
申请人 ASAHI KOGAKU KOGYO KABUSHIKI KAISHA 发明人 HIRAI, ISAMU;MACHIDA, KATSUKI
分类号 G03B7/099;(IPC1-7):G02B7/02;G03B19/12 主分类号 G03B7/099
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