发明名称 |
Camera with electromagnetically driven lens barrel |
摘要 |
In a camera which is provided with an electromagnetically driven lens barrel and is arranged to control a shutter by driving a rotor with an electromagnetic force generated by energizing a coil printed on the rotor, power supply to the coil is effected in a pulse-like manner for drawing out a photo-taking lens and in a continuous manner for driving the shutter.
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申请公布号 |
US4671639(A) |
申请公布日期 |
1987.06.09 |
申请号 |
US19860857524 |
申请日期 |
1986.04.23 |
申请人 |
CANON KABUSHIKI KAISHA |
发明人 |
KODAIRA, TAKANORI;EGAWA, AKIRA;NAMAI, AKIHIRO |
分类号 |
G02B7/08;G03B9/08;(IPC1-7):G03B3/10 |
主分类号 |
G02B7/08 |
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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