发明名称 LENS MIRROR FRAME, ZOOM LENS BARREL, DIGITAL CAMERA, AND OPTICAL APPARATUS
摘要 PROBLEM TO BE SOLVED: To provide; a lens mirror frame which has a plurality of lens units which have a structure of holding lenses by lens frames, built in the direction of an optical axis and allows positions of lenses to be easily adjusted (aligned) in the direction of the optical axis and the radial direction and can be made high-precision and small-sized and has the constitution simplified; a zoom lens barrel; a digital camera; and an optical apparatus. SOLUTION: A lens mirror frame 0 is provided with; a first lens unit A having a first lens frame 5 which holds at least one first lens 1 on the outer diameter side; a second lens frame 10 fixed to the front end part in the direction of the optical axis, of the first lens unit; and a second lens unit B having a second lens 11 which is held by the inner periphery of the second lens frame. The second lens frame is provided with a second lens receiving part 12 which is brought into contact with the outer peripheral part of the second lens to position the second lens in the direction of the optical axis and a rear end expanded part 13 which has the inner periphery brought into contact with the outer periphery of a front end narrowed part 6 of the first lens frame, and the first lens frame is provided with a second lens frame position control part 14 which controls movement in the radial direction of the second lens frame, in the outer periphery of the front end narrowed part, and the second lens frame is fixed to the first lens frame by a fixing means. COPYRIGHT: (C)2005,JPO&NCIPI
申请公布号 JP2005092141(A) 申请公布日期 2005.04.07
申请号 JP20030329087 申请日期 2003.09.19
申请人 RICOH CO LTD 发明人 IRISAWA SHIGERU
分类号 G02B7/02;(IPC1-7):G02B7/02 主分类号 G02B7/02
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