发明名称 |
Shutter opening angle control device for a motion picture camera |
摘要 |
In the disclosed motion picture shutter angle control device, a motor serves exclusively for varying the shutter opening angle formed with a number of shutter blades. A detector detects when a predetermined shutter opening angle is obtained and delivers a signal which is used in a fade operation and the overlap operation to change the maximum opening angle.
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申请公布号 |
US4322140(A) |
申请公布日期 |
1982.03.30 |
申请号 |
US19790073434 |
申请日期 |
1979.09.07 |
申请人 |
CANON KABUSHIKI KAISHA |
发明人 |
TAKIMOTO, HIROYUKI;TOYAMA, MASAMICHI |
分类号 |
G03B9/12;G03B19/18;(IPC1-7):G03B21/36 |
主分类号 |
G03B9/12 |
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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