发明名称 Exposure correction factor setting device for a camera
摘要 An exposure correction factor setting device is disclosed which includes an exposure correction factor setting dial, a brush connected to the dial and arranged to be operated when the film speed is manually adjusted, and a bias device connected to a variable resistor for manual adjustment of the film speed so as to apply to a film speed signal producing device for automatic adjustment of film speed a bias signal corresponding to the exposure correction factor set by the dial. It is thereby possible to utilize the exposure correction factor setting device in automatically setting a film speed by a film cassette as well as in manually setting the film speed.
申请公布号 US4159168(A) 申请公布日期 1979.06.26
申请号 US19770855480 申请日期 1977.11.29
申请人 CANON K K 发明人 OHTAKI, SHOHEI;SUMI, AKIYASU;TSUNEKAWA, TOKUICHI
分类号 G03B7/24;G03B7/00;G03B7/08;G03B7/16;G03B15/05;(IPC1-7):G03B7/00 主分类号 G03B7/24
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