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    • 7. 发明授权
    • Optical-system driving device effecting switchover between objective lenses for achieving focal spots
    • 光学系统驱动装置实现物镜之间的切换以实现焦点
    • US08171506B2
    • 2012-05-01
    • US11989584
    • 2006-06-05
    • Keiji NakamuraMitoru YabeNobuo TakeshitaToshiya Matozaki
    • Keiji NakamuraMitoru YabeNobuo TakeshitaToshiya Matozaki
    • G11B7/00
    • G11B7/1374G11B7/0932G11B7/0933G11B7/0935G11B2007/0006
    • An optical-system driving device is achieved that can switch over between objective lenses and is space-saving, lightweight, and simply-configured. An optical-system driving device for recording information onto or playing it back from an optical storage medium, includes a stationary unit having a rotation axis; a movable unit pivotable about the rotation axis; pivotal movement means for pivotally moving the movable unit about the rotation axis; and the movable unit includes a holder having a plurality of optical means that is able to focus a beam of light onto the optical storage medium, and a plurality of conductive elastic members for supporting the holder, wherein an optical axis of each of the plurality of optical means is located substantially equidistant from the rotation axis, and the optical means for focusing the beam of light onto the optical storage medium is selected by pivotally moving the movable unit with the rotation means.
    • 实现了能够在物镜之间切换并且节省空间,重量轻且简单配置的光学系统驱动装置。 一种用于将信息记录到光学存储介质上或从光存储介质播放的光学系统驱动装置,包括具有旋转轴的固定单元; 围绕所述旋转轴线枢转的可移动单元; 枢转运动装置,用于围绕旋转轴线可动地移动可移动单元; 并且所述可移动单元包括具有能够将光束聚焦到所述光学存储介质上的多个光学装置的保持器,以及用于支撑所述保持器的多个导电弹性构件,其中,所述多个 光学装置基本上等距离旋转轴线,并且通过用旋转装置枢转地移动可移动单元来选择用于将光束聚焦到光学存储介质上的光学装置。
    • 8. 发明授权
    • Optical actuator
    • 光学执行机构
    • US07168082B2
    • 2007-01-23
    • US10780868
    • 2004-02-19
    • Nobuo TakeshitaMitoru Yabe
    • Nobuo TakeshitaMitoru Yabe
    • G11B7/09G11B7/085G11B7/08
    • G11B7/0956G11B7/093G11B7/0932
    • An optical actuator according to this invention includes a focusing lens for focusing a laser beam on a information disk, a lens holder for holding the focusing lens, a focusing coil for driving the focusing lens in an axial direction of the laser beam, a tracking coil for driving the focusing lens in a radial direction of the information disk, a tilting coil for pivotally rotating the focusing lens on an axis along the tangential direction of the disk and a pair of supporting members each disposed on each opposing sides of the lens holder. Each of the supporting members having at least three fixing elements disposed in an approximately circular arc, and a plurality of linear elastic members are connected to each of the fixing elements.
    • 根据本发明的光学致动器包括用于将激光束聚焦在信息盘上的聚焦透镜,用于保持聚焦透镜的透镜保持器,用于沿着激光束的轴向驱动聚焦透镜的聚焦线圈,跟踪线圈 用于沿着信息盘的径向驱动聚焦透镜,用于使聚焦透镜在沿着盘的切线方向的轴上旋转地旋转的倾斜线圈以及分别设置在透镜保持器的每个相对侧上的一对支撑构件。 每个支撑构件具有设置在大致圆弧中的至少三个固定元件,并且多个线性弹性构件连接到每个固定元件。