发明名称 Shutter speed selector accessory
摘要 Apparatus for converting a camera metering system from a manually set electronic metering system into an automatic, aperture-preferred metering system uses sensing means responsive to exposure signals provided by the metering system of the camera for providing a signal to drive means for automatically selecting the proper shutter speed.
申请公布号 US4079392(A) 申请公布日期 1978.03.14
申请号 US19760720549 申请日期 1976.09.03
申请人 VIVITAR CORPORATION 发明人 ORBAN, JEAN M.
分类号 G03B7/083;G03B7/10;G03B17/18;(IPC1-7):G03B7/08;G03B9/08 主分类号 G03B7/083
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