- 专利标题: Actuator for pickup, pickup device, recording medium drive device, and method of manufacturing actuator for pickup
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申请号: US12926285申请日: 2010-11-08
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公开(公告)号: US20110103203A1公开(公告)日: 2011-05-05
- 发明人: Jun Suzuki
- 申请人: Jun Suzuki
- 申请人地址: JP Tokyo
- 专利权人: PIONEER CORPORATION
- 当前专利权人: PIONEER CORPORATION
- 当前专利权人地址: JP Tokyo
- 优先权: JP2004-099314 20040330; JP2004-099392 20040330
- 主分类号: G11B7/08
- IPC分类号: G11B7/08 ; B29C45/14
摘要:
Provided is an actuator for a pickup, in which end parts of a plurality of suspensions (550A to 550F) of five or more are positioned on a virtual circle (X) formed on a plane by being projected onto the plane including both a focusing direction and a tracking direction. A rolling center (O) defined as a center of the virtual circle (X) is made to coincide with all three, two, or one of a center (Os) of the gravity of a lens holder (600), a center (Os) of the drive force of the lens holder (600), and a center (Os) of the translational force of the suspensions (550A to 550F). Since the rolling center (O) coincides with all three, two, or one of those centers (Os), a rotational moment is not generated on the lens holder (600) and, therefore, generation of unnecessary resonance can be prevented.