发明名称 |
Flash responsive exposure time control system |
摘要 |
An exposure time control system includes a circuit which denergizes a shutter control circuit and an electromagnet and causes a shutter closure when an electronic flash device is triggered to fire an electronic flash tube. The system further includes a power supply circuit and a self-maintaining circuit for maintaining the power supply circuit at its active condition after it is activated even after a power switch therefor is opened. A signal generated upon the trigger of the flash device releases the self-maintenance of the power supply.
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申请公布号 |
US4256391(A) |
申请公布日期 |
1981.03.17 |
申请号 |
US19790069854 |
申请日期 |
1979.08.27 |
申请人 |
MINOLTA CAMERA KABUSHIKI KAISHA |
发明人 |
KITAURA, MASHIO |
分类号 |
G03B7/083;G03B7/16;G03B9/70;G03B15/05;(IPC1-7):G03B7/16 |
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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