发明名称 Automatic exposure controller for a camera
摘要 An automatic exposure controller for camera permits a free selection between a spotwise photometry, an auto-mode and a manual photographing mode. When switching from the spotwise photometry mode to another photographing mode, photometric information which is stored during the spotwise photometry mode is cleared.
申请公布号 US4453811(A) 申请公布日期 1984.06.12
申请号 US19820366581 申请日期 1982.04.08
申请人 OLYMPUS OPTICAL COMPANY LTD. 发明人 YAMASAKI, MASAFUMI
分类号 G03B7/00;G03B7/08;G03B7/089;G03B7/091;G03B7/28;(IPC1-7):G03B7/08 主分类号 G03B7/00
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