发明名称 Lens barrel having a biasing member to prevent backlash between lens unit cam mechanisms
摘要 A lens barrel which has a lens holding member for holding a lens unit, a movement cam mechanism for moving the lens holding member in an optical-axis direction, a biasing member for biasing the lens holding member to shift a slide allowance of the movement cam mechanism in one direction, a biasing force receiving member for receiving a biasing force of the biasing member and a biasing force adjustment cam mechanism for moving the biasing force receiving member in the optical-axis direction so that the biasing force of the biasing member remains the same.
申请公布号 US5627683(A) 申请公布日期 1997.05.06
申请号 US19950571762 申请日期 1995.12.13
申请人 NIKON CORPORATION 发明人 TAKEZAWA, KAZUMITSU
分类号 G02B7/04;G02B7/10;(IPC1-7):G02B15/14 主分类号 G02B7/04
代理机构 代理人
主权项
地址