发明授权
- 专利标题： Temperature compensated exposure control apparatus for a camera
- 专利标题（中）： 照相机温度补偿曝光控制装置
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申请号： US567116申请日： 1975-04-11
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公开(公告)号： US4000498A公开(公告)日： 1976-12-28
- 发明人: Tokuichi Tunekawa , Takehiko Kiyohara , Masanori Uchidoi , Tetsuya Taguchi , Yukio Mashimo , Yusuke Ono
- 申请人： Tokuichi Tunekawa , Takehiko Kiyohara , Masanori Uchidoi , Tetsuya Taguchi , Yukio Mashimo , Yusuke Ono
- 申请人地址： JA Tokyo
- 专利权人： Canon Kabushiki Kaisha
- 当前专利权人： Canon Kabushiki Kaisha
- 当前专利权人地址： JA Tokyo
- 优先权： JA49-43665 19740418; JA50-31940 19750317
- 主分类号： G03B7/083
- IPC分类号： G03B7/083 ; G03B7/08
摘要：
An exposure control apparatus which can set accurate shutter speed constantly irrespective of changes in ambient temperature and which can eliminate not only an error in shutter speed caused by an expansion semiconductor element but also an error in shutter speed caused by the variation in output characteristics due to variation in temperature of a compression circuit.
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