发明名称 LENS DRIVE UNIT, LENS SYSTEM AND PHOTOGRAPHING SYSTEM
摘要 PROBLEM TO BE SOLVED: To provide a lens drive unit constituted so that a photographer can easily confirm the present operation state of the lens device in various using situations. SOLUTION: In the lens drive unit which is attached to a lens device 1 so as to servo-drive the lens device, light emitting parts 6a and 6b equipped with a display function are arranged in a part exposed beyond the lens device in the drive unit main body, and the light is emitted when the lens device is manually operated, or when the lens device is servo-driven.
申请公布号 JP2003131107(A) 申请公布日期 2003.05.08
申请号 JP20010324546 申请日期 2001.10.23
申请人 CANON INC 发明人 NAKAGAWA HIDENORI
分类号 G02B7/02;G03B17/02;G03B17/18;(IPC1-7):G02B7/02 主分类号 G02B7/02
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