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.
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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 |
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代理人 |
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主权项 |
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地址 |
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