发明申请
- 专利标题: Lens driving apparatus
- 专利标题(中): 镜头驱动装置
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申请号: US10926221申请日: 2004-08-26
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公开(公告)号: US20050180275A1公开(公告)日: 2005-08-18
- 发明人: Manabu Shiraki , Satoshi Asakawa , Naoki Sekiguchi , Morimasa Yoshie
- 申请人: Manabu Shiraki , Satoshi Asakawa , Naoki Sekiguchi , Morimasa Yoshie
- 优先权: JP2004-41133 20040218; JP2004-41323 20040218; JP2004-45572 20040223; JP2004-53405 20040227; JP2004-60034 20040304; JP2004-60126 20040304
- 主分类号: G03B3/10
- IPC分类号: G03B3/10 ; G02B7/08 ; G02B7/09 ; G02B7/10 ; G02B7/28 ; G11B7/00
摘要:
A lens driving apparatus includes a first yoke 7 having an inner peripheral wall 7a and an outer peripheral wall 7b placed to be concentric with each other and forming a rectangular U-shape cross section and a cylindrical shape; a second yoke 12 placed at an outer side of the first yoke 7 be concentric with the first yoke 7 and forming a rectangular U-shape cross section and a cylindrical shape; a base 2; a first magnet 6 and a first coil 4 arranged in a rectangular U-shape interior of the first yoke 7; a second magnet 11 and a second coil 9 arranged in a rectangular U-shape interior of the second yoke 12; a first lens support member 5; and a second lens support member 10. The second lens support member 10 is placed at an inner peripheral side of the second yoke 12 and having the second coil 9 fixed onto an outer periphery. The first lens support member 5 is linearly moved in a direction of an optical axis of a lens by an electromagnetic force caused by passing current through the first coil 4. The second lens support member is linearly moved in a direction of an optical axis of a lens by an electromagnetic force caused by passing current through the second coil 9.
公开/授权文献
- US07394603B2 Lens driving apparatus 公开/授权日:2008-07-01
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