发明名称 |
Lens barrel with lens shutter |
摘要 |
A lens barrel having a front lens group frame axially movable along its optical axis is stabilized by means of spring elements which urge the frame in a radial direction to a stable position. A rear lens group frame is subsequently radially adjusted so that the optical axis of the rear lens group is in alignment with that of the first lens group.
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申请公布号 |
US4720167(A) |
申请公布日期 |
1988.01.19 |
申请号 |
US19850801993 |
申请日期 |
1985.11.25 |
申请人 |
ASAHI KOGAKU KOGYO KABUSHIKI KAISHA |
发明人 |
OKURA, ZENICHI |
分类号 |
G03B9/10;G02B7/04;G02B15/14;(IPC1-7):G02B7/02 |
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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