发明名称 CAMERA
摘要 PROBLEM TO BE SOLVED: To prevent the occurrence of flare or the like by reducing harmful light caused by reflection in a lens barrel not only in the case of performing wide-angle photography but also in the case of performing telephotography. SOLUTION: A harmful light cutting means 12 is arranged on the luminous flux incident end side of a variable power optical system 4. When the camera is set to a telephotographic state from a wide-angle photographic state, the cutting means 12 is moved so that the harmful light unnecessary for the telephotography may be completely removed by an aperture part 11 formed in the cutting means 12. COPYRIGHT: (C)2004,JPO
申请公布号 JP2004117400(A) 申请公布日期 2004.04.15
申请号 JP20020276368 申请日期 2002.09.20
申请人 RICOH CO LTD 发明人 ONO YOSHIMI;FUNO KATSUHIKO
分类号 G02B7/02;G02B7/04;G02B7/10;G03B17/04;(IPC1-7):G02B7/02 主分类号 G02B7/02
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