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    • 4. 发明授权
    • Compact optical disk device capable of driving various types of optical disks
    • 能够驱动各种光盘的紧凑型光盘装置
    • US06188665B1
    • 2001-02-13
    • US09113519
    • 1998-07-10
    • Koji Furusawa
    • Koji Furusawa
    • G11B1730
    • G11B17/30
    • An optical disk device applicable to a plurality of optical disks differently normalized from each other, including rotation driving unit which support the optical disk and which drive rotation of the optical disk; a plurality of optical heads which are applicable to the a plurality of differently normalized optical disks, respectively; single guiding member for guiding each of the a plurality of optical heads in a radial direction of the optical disk supported by the rotation driving unit; pushing member for pushing the each of the a plurality of optical heads along the single guiding member; container unit for containing all of the a plurality of optical heads; and optical head moving member for moving one of the a plurality of optical heads from the container unit toward the single guiding member or from the single guiding member toward the container unit.
    • 一种光盘装置,其适用于彼此不同地标准化的多个光盘,包括支撑光盘的旋转驱动单元和驱动光盘的旋转的旋转驱动单元; 分别适用于多个不同规格化的光盘的多个光学头; 单个引导构件,用于沿着由旋转驱动单元支撑的光盘的径向引导多个光学头的每一个; 推动构件,用于沿着单个引导构件推动多个光学头中的每一个; 用于容纳所有多个光学头的容器单元; 以及用于将多个光学头中的一个从容器单元朝向单个引导构件或从单个引导构件朝向容器单元移动的光学头移动构件。
    • 7. 发明授权
    • Optical disk device with optical path length changing member
    • 具有光路长度变化构件的光盘装置
    • US5986982A
    • 1999-11-16
    • US966059
    • 1997-11-07
    • Koji Furusawa
    • Koji Furusawa
    • G11B7/085G11B7/00G11B7/09G11B7/135
    • G11B7/1365G11B7/1369G11B2007/0006G11B7/0927
    • An optical disk device for projecting laser light emitted from a laser light source on an optical disk to reproduce information has a support shaft which is disposed nearly parallel with an optical axis of the laser light. The support shaft is fixed on a mount. A lens holder is rotatably disposed around the support shaft and reciprocally movable along the support shaft as well as holding an objective lens for converging the laser light upon a recording plane of the optical disk. The device also includes a tracking drive for energizing the rotation movement of the lens holder, and a focusing drive for energizing the reciprocative movement along the support shaft of the lens holder. An optical path length changing member is provided which has a change region where an optical path length is changed when the laser light is transmitted therethrough and an unchanged region where an optical path length is not changed when the laser light is transmitted therethrough is located closer to the optical disk than the lens holder and rotatably disposed around the support shaft and reciprocally movable along the support shaft. Completing the device is a linking mechanism for variably effecting the engagement or disengagement of the optical path length changing member with the lens holder.
    • 用于将从激光源发射的激光投射在光盘上以再现信息的光盘装置具有与激光的光轴几乎平行设置的支撑轴。 支撑轴固定在支架上。 透镜保持器可旋转地设置在支撑轴周围并且沿着支撑轴可往复移动,并且保持用于将激光会聚在光盘的记录平面上的物镜。 该装置还包括用于激励透镜保持器的旋转运动的跟踪驱动器和用于激励沿着透镜保持器的支撑轴的往复移动的聚焦驱动器。 提供一种光路长度改变件,其具有当激光透射时光路长度改变的变化区域和当激光透射时光路长度不变的不变区域位于更接近 所述光盘比所述透镜保持器旋转,并且可旋转地设置在所述支撑轴周围并且可沿所述支撑轴往复运动。 完成装置是用于可变地实现光路长度改变构件与透镜保持器的接合或分离的连接机构。