发明名称 Removable (lens position limiting) stop for auto-manual focusing cameras
摘要 A manually positionable lens movement limiting stop is provided that limits the manual movement of a variable focus lens in a photographic camera to within its normal focusing range wherein said camera has a manual and automatic focus control system and wherein said lens must be moved outside of its said normal focusing range for proper automatic focus control system operation.
申请公布号 US4160590(A) 申请公布日期 1979.07.10
申请号 US19780896713 申请日期 1978.04.17
申请人 POLAROID CORPORATION 发明人 REYNARD, JOHN M.
分类号 G02B7/40;(IPC1-7):G03B3/00 主分类号 G02B7/40
代理机构 代理人
主权项
地址