发明名称 Exposure control device for camera
摘要 The present invention relates to an exposure control device for a camera for obtaining a proper exposure taking the differences of the films to be used into consideration, so designed that an exposure amount control circuit for controlling an exposure amount by means of a first light measuring circuit for measuring the light reflected from the film plane is provided, while a second light measuring circuit for measuring the light reflected from the shutter plane and/or the film plane is provided in such a manner that by means of the output of the second light measuring circuit the control output value of the exposure amount control circuit is compensated so as to obtain a proper exposure amount.
申请公布号 US4131350(A) 申请公布日期 1978.12.26
申请号 US19770839832 申请日期 1977.10.06
申请人 CANON KABUSHIKI KAISHA 发明人 UCHIYAMA, TAKASHI;SUZUKI, RYOICHI;TSUNEKAWA, TOKUICHI;KAWANA, HIROYOSHI;ONO, YUSUKE;MATSUDA, MUTSUHIDE
分类号 G03B7/083;G03B7/099;(IPC1-7):G03B7/08 主分类号 G03B7/083
代理机构 代理人
主权项
地址