发明名称 Lens barrel with integrally formed zoom operation tube and cam tube
摘要 A lens barrel comprises a lens for zooming and a moving mechanism for moving the lens in the direction of an optical axis. The moving mechanism includes a zoom operation tube for performing a zooming operation and a cam tube disposed inside the zoom operation tube and having a cam part. The zoom operation tube and the cam tube are integrally formed.
申请公布号 US5225939(A) 申请公布日期 1993.07.06
申请号 US19910733425 申请日期 1991.07.22
申请人 CANON KABUSHIKI KAISHA 发明人 IIZUKA, TOSHIMI
分类号 G02B7/02;G02B7/10 主分类号 G02B7/02
代理机构 代理人
主权项
地址