发明申请
- 专利标题: Objective Lens Driving Apparatus
- 专利标题(中): 物镜驱动装置
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申请号: US11743113申请日: 2007-05-01
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公开(公告)号: US20070263495A1公开(公告)日: 2007-11-15
- 发明人: Akira Iijima , Noboru Onojima
- 申请人: Akira Iijima , Noboru Onojima
- 申请人地址: JP Osaka
- 专利权人: Sanyo Electric Co., Ltd.
- 当前专利权人: Sanyo Electric Co., Ltd.
- 当前专利权人地址: JP Osaka
- 优先权: JP2006-133715 20060512
- 主分类号: G11B7/00
- IPC分类号: G11B7/00
摘要:
An objective lens driving apparatus comprising: an actuator movable unit that is configured such that a driving coil is mounted on a lens holder with an objective lens, and is supported on an actuator frame displaceably and elastically; a magnetic circuit that includes a magnet fixed to the actuator frame to form an effective magnetic field for the driving coil; and a rolling canceling coil that is so mounted on the lens holder as to act on the effective magnetic field formed by the magnetic circuit so effectively that a driving force is generated in a tilt direction that cancels rolling generated when a drive signal is supplied to a tracking coil to drive the actuator movable unit in a tracking direction.
公开/授权文献
- US07791985B2 Objective lens driving apparatus 公开/授权日:2010-09-07
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