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    • 2. 发明授权
    • Objective lens driving apparatus, optical pickup
    • 物镜驱动装置,光学拾取器
    • US09070380B2
    • 2015-06-30
    • US13015740
    • 2011-01-28
    • Yoshihiro SatoJun HatoKatsuhiko KimuraSeiichi KatoTakahiro Yamaguchi
    • Yoshihiro SatoJun HatoKatsuhiko KimuraSeiichi KatoTakahiro Yamaguchi
    • G11B7/095G11B7/09
    • G11B7/0932G11B7/0935G11B7/0956
    • High-performance and reliable objective lens driving apparatus and optical pickup wherein the tilt of an objective lens relative to an optical disc is suppressed are provided. The optical pickup is equipped with a semiconductor laser, an electro-optic component, and the objective lens driving apparatus. In this optical pickup, the objective lens driving apparatus is comprised of: a moving part including an objective lens, a holder that holds the objective lens, a focusing coil, and a tracking coil; a holding member for elastic support members that couples together multiple elastic support members providing elastic support on a fixed part and the moving part and is mounted on the moving part; the elastic support members that elastically support the moving part from the fixed part; and the fixed part. The holding member for elastic support members mounted on the moving part and the holder that holds the objective lens are joined together by fitting together a concavity and a convexity.
    • 提供了高性能且可靠的物镜驱动装置和光学拾取器,其中抑制了物镜相对于光盘的倾斜。 光学拾取器配备有半导体激光器,电光部件和物镜驱动装置。 在该光学拾取器中,物镜驱动装置包括:包括物镜的移动部件,保持物镜的保持器,聚焦线圈和跟踪线圈; 用于弹性支撑构件的保持构件,其将固定部件和所述移动部件上提供弹性支撑的多个弹性支撑构件联接在一起并安装在所述移动部件上; 所述弹性支撑构件从所述固定部弹性地支撑所述移动部件; 和固定部分。 安装在移动部件上的弹性支撑部件的保持部件和保持物镜的保持器通过将凹凸嵌合而接合在一起。
    • 3. 发明授权
    • Lens driving mechanism for optical pickup and optical disc apparatus
    • 用于光学拾取器和光盘装置的透镜驱动机构
    • US08341657B2
    • 2012-12-25
    • US12542078
    • 2009-08-17
    • Tatsuya YamasakiYoshihiro SatoSeiichi KatoKatsuhiko KimuraTakahiro YamaguchiYoshiro KonishiHidenao Saito
    • Tatsuya YamasakiYoshihiro SatoSeiichi KatoKatsuhiko KimuraTakahiro YamaguchiYoshiro KonishiHidenao Saito
    • G11B7/135
    • G11B7/08582
    • An optical pickup, mounting a lens actuator 101 thereon, the lens actuator comprises: a lens 1 having an optical axis in direction in parallel with an optical disc; a holder 2, which holds the lens thereon; a first guide shaft 3 holding the holder, so as to regulate the holder to change a position thereof, into an inner surface direction of a surface having the optical axis of the lens as a normal line vector thereof; a second guide shaft 4, which regulates the holder to change the position thereof, into a normal line vector of an optical disc; and a reed screw, which moves the holder into direction of the optical axis of the lens, wherein a distance between the optical axis of the lens and the optical disc, a distance between a central axis of the first guide shaft and the optical disc, and a distance between a central axis of the second guide shaft and the optical disc are lager than a distance between a central axis of the reed screw and the optical disc.
    • 在其上安装透镜致动器101的光学拾取器,透镜致动器包括:具有与光盘平行的方向的光轴的透镜1; 在其上保持透镜的保持器2; 保持保持器的第一引导轴3,以将保持器的位置调整为具有透镜的光轴的表面的内表面方向作为其法线矢量; 第二引导轴4,其将保持器改变其位置,调节成光盘的法线矢量; 以及将保持器移动到透镜的光轴的方向的簧片螺钉,其中透镜的光轴与光盘之间的距离,第一引导轴的中心轴线与光盘之间的距离, 并且第二引导轴的中心轴线与光盘之间的距离大于簧片螺钉的中心轴线与光盘之间的距离。