发明名称 Photometric mode switching apparatus for cameras of automatic exposure control type
摘要 A photometric mode switching apparatus for a camera of the automatic exposure control type includes a first switch which is used to select a particular photometric mode, and a second switch which is interlocked with a storage switch contained in a spotwise photometry circuit. Unless the two switches are operated to establish a spotwise photometric mode, the camera is caused to operate in the average photometric mode.
申请公布号 US4402587(A) 申请公布日期 1983.09.06
申请号 US19810303131 申请日期 1981.09.15
申请人 OLYMPUS OPTICAL COMPANY LTD. 发明人 YAMASAKI, MASAFUMI
分类号 G03B7/089;G03B7/083;G03B7/28;(IPC1-7):G03B7/08 主分类号 G03B7/089
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