发明名称 |
Exposure control circuit for camera |
摘要 |
The disclosure describes an improved exposure control circuit for camera in which an electromagnet adapted for control of camera shutter or diaphragm is excited with a constant current stabilized against variation of source voltage so that the operation time of said shutter or diaphragm may be remained always constant.
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申请公布号 |
US4104666(A) |
申请公布日期 |
1978.08.01 |
申请号 |
US19760739850 |
申请日期 |
1976.11.09 |
申请人 |
NIPPON KOGAKU K.K. |
发明人 |
TOYODA, KENJI;WATANABE, SAKUJI |
分类号 |
G03B9/62;G03B7/087;(IPC1-7):G03B9/02;G03B9/08 |
主分类号 |
G03B9/62 |
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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