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.
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
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