发明授权
- 专利标题： Computer type electronic flash device
- 专利标题（中）： 电脑型电子闪光灯装置
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申请号： US386231申请日： 1982-06-08
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公开(公告)号： US4494044A公开(公告)日： 1985-01-15
- 发明人: Hiroyuki Kataoka
- 申请人： Hiroyuki Kataoka
- 申请人地址： JPX 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： JPX Tokyo
- 优先权： JPX56-94443 19810618
- 主分类号： G03B15/05
- IPC分类号： G03B15/05 ; H05B41/32 ; H05B37/02
摘要：
The disclosed computer type electronic flash device has a light measuring circuit which produces a flash terminating signal upon receipt of light reflected from an object to be photographed. Connected to this light measuring circuit is a control circuit which renders the former inoperative after the lapse of time required by a flash tube for terminating emission of a flash light. This arrangement precludes a commutating circuit from being rendered conductive again after termination of flash by the flash tube.
公开/授权文献
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