发明名称 LENS DRIVE DEVICE
摘要 <P>PROBLEM TO BE SOLVED: To provide a lens drive device capable of controlling an attraction force between a moving body and a support body, thereby highly accurately controlling the position of the moving body, even when the moving body is directly moved to a predetermined position from an initial state where the moving body comes into contact with the support body in an optical axis direction. <P>SOLUTION: In a lens drive device 1, during a dormant period when the energization of coils 31 and 32 is stopped to stop a magnetic drive mechanism 5, a moving body 3 is in the initial state where the moving body 3 is located on an image side and the image side end of a sleeve 13 is in contact with a holder 19 with elasticity, by the energizing force of at least one of a rear spring member 14x and a front spring member 14y. At this time, a contact surface where the sleeve 13 comes into contact with the holder 19 and a reference surface where the holder 19 comes into contact with the sleeve 13 have UV irradiation processing etc., to reduce the attraction force between the holder 19 and the sleeve 13. <P>COPYRIGHT: (C)2013,JPO&INPIT
申请公布号 JP2013109231(A) 申请公布日期 2013.06.06
申请号 JP20110255414 申请日期 2011.11.22
申请人 NIDEC SANKYO CORP 发明人 AKAHA MAKOTO;TAKEDA TADASHI;TAGUCHI TADASHI;TAKEMURA MASAO;NIWA SHINICHI
分类号 G02B7/04;G02B7/02 主分类号 G02B7/04
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