发明名称 Photographic camera with film speed setting system
摘要 A manually operable or automatic film speed setting system adapted for use in an electronic exposure control apparatus of a photographic camera. When a film cartridge having an electrically conductive marker representative of the sensitivity of film therein is loaded in the camera, information representative of film speed is automatically introduced into the exposure value computer regardless of the manually switched position of the inherent film speed dial different from that for the sensitivity of the used film.
申请公布号 US4200371(A) 申请公布日期 1980.04.29
申请号 US19770841469 申请日期 1977.10.12
申请人 CANON K K 发明人 SANADA, NORIAKI;SUZUKI, RYOICHI;SUZUKI, TOYOTOSI;TAGUCHI, TETSUYA;TEZUKA, NOBUO;UCHIYAMA, TAKASHI
分类号 G03B7/00;(IPC1-7):G03B7/08;G03B15/03;G03B17/18;G03B17/36;G03B17/38 主分类号 G03B7/00
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