| 发明名称 |
Camera |
| 摘要 |
A camera includes a shutter which is electromagnetically closed at the end of a given exposure time. Circuitry in the camera operates to prevent a prolonged opening of the shutter from occurring when the camera battery voltage drops below a satisfactory operating level during an exposure, wherein the shutter mechanism is forcibly recharged.
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| 申请公布号 |
US4389111(A) |
申请公布日期 |
1983.06.21 |
| 申请号 |
US19810295361 |
申请日期 |
1981.08.24 |
| 申请人 |
CANON KABUSHIKI KAISHA |
发明人 |
UCHIDOI, MASANORI;SHIGETA, YOSHIHIRO;YOSHIKAWA, RYOICHI;TOSAKA, YOICHI;HARAGUCHI, SHOSUKE |
| 分类号 |
G03B7/08;G03B7/093;G03B7/26;G03B9/08;G03B17/00;(IPC1-7):G03B1/18 |
主分类号 |
G03B7/08 |
| 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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