发明名称 |
Shutter device for camera |
摘要 |
The present invention relates to an electromagnetically driven shutter device for camera, so designed that a detecting means for detecting the displacement speed of the shutter member and the power supply means for supplying the driving energy to the shutter member are provided in such a manner that the output of the power supply means is varied in accordance with the output of the detecting means so as to maintain the displacement speed of the shutter member constant.
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申请公布号 |
US4322145(A) |
申请公布日期 |
1982.03.30 |
申请号 |
US19800141279 |
申请日期 |
1980.04.18 |
申请人 |
CANON KABUSHIKI KAISHA |
发明人 |
YAMADA, TATEO;HARIGAYA, ISAO;OGAWA, YUKIO;HIROHATA, MICHIO |
分类号 |
G03B9/10;G03B9/08;G03B9/22;(IPC1-7):G03B7/08 |
主分类号 |
G03B9/10 |
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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