发明名称 LENS BARREL AND OPTICAL DEVICE
摘要 PROBLEM TO BE SOLVED: To provide a lens barrel and an optical device in which lock operations of plural movement members to a lens barrel and lock release operations thereof can be properly performed.SOLUTION: In a lens barrel and an optical device, when a first lens holder is moved in a direction to get away from a first lock position (R2), first magnetic characteristics are changed by a magnetic field generated by a first drive coil, and second magnetic characteristics are changed by a magnetic field generated by a second drive coil, so that the adsorption power between a first lock magnetic material and a lock magnet is reduced.
申请公布号 JP2013182165(A) 申请公布日期 2013.09.12
申请号 JP20120046518 申请日期 2012.03.02
申请人 NIKON CORP 发明人 ITO YOSHIHIRO
分类号 G02B7/02 主分类号 G02B7/02
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