发明名称 |
Electromagnetically driven shutter |
摘要 |
In an electromagnetically driven focal plane shutter of the type having a trailing screen which moves irrespective as to whether a leading screen is moving, there are provided a detecting member arranged to detect movement of the leading screen and an inhibiting means which inhibits the trailing screen from moving when movement of the leading screen is not detected.
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申请公布号 |
US4378150(A) |
申请公布日期 |
1983.03.29 |
申请号 |
US19810280339 |
申请日期 |
1981.07.06 |
申请人 |
CANON KABUSHIKI KAISHA |
发明人 |
HASHIMOTO, TEIJI;SENUMA, MICHIO |
分类号 |
G03B9/36;G03B9/18;G03B17/20;(IPC1-7):G03B9/40 |
主分类号 |
G03B9/36 |
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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