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    • 5. 发明授权
    • Optical pickup device and optical disc drive
    • 光学拾取装置和光盘驱动器
    • US07739703B2
    • 2010-06-15
    • US11670047
    • 2007-02-01
    • Satoshi AraiHiroaki FuruichiYoshio OozekiRika NomuraKazumi Takahashi
    • Satoshi AraiHiroaki FuruichiYoshio OozekiRika NomuraKazumi Takahashi
    • G11B7/08
    • G11B7/12B29C65/1406B29C65/4835B29C65/4845B29C65/52B29C65/54B29C2035/0827B29K2081/04G11B7/22G11B33/1406
    • An optical pickup device having an optical module provided with an optical element and bonded and fixed to an optical pickup case, wherein the optical module is fixed to the optical pickup case by a first ultraviolet curing adhesive at at least two positions with an optical axis between the positions, the optical axis extending from the optical element to the optical pickup case, and at least a part of an exposed surface of the first ultraviolet curing adhesive is covered with a second ultraviolet curing adhesive higher in hardness or elastic modulus than the first ultraviolet curing adhesive to diminish an optical axis offset of the optical pickup device, further, a heat dissipating material higher in thermal conductivity than the first and second ultraviolet curing adhesives is brought into contact with both optical module and optical pickup case to improve the heat dissipating performance of the optical pickup device.
    • 一种光学拾取装置,具有设置有光学元件并被固定到光学拾取器壳体上的光学模块,其中所述光学模块通过第一紫外线固化粘合剂在至少两个位置处固定到所述光学拾取器壳体上, 位置,从光学元件延伸到光学拾取器壳体的光轴以及第一紫外线固化粘合剂的暴露表面的至少一部分被第二紫外线固化粘合剂覆盖,硬度或弹性模量比第一紫外线 固化粘合剂以减少光学拾取装置的光轴偏移,此外,与第一和第二紫外线固化粘合剂相比,导热性高的散热材料与光学模块和光学拾取器壳体接触以提高散热性能 的光拾取装置。
    • 8. 发明申请
    • OPTICAL PICKUP DEVICE
    • 光学拾取器件
    • US20090129239A1
    • 2009-05-21
    • US12265815
    • 2008-11-06
    • Satoshi AraiHiroaki FuruichiKazumi TakahashiMitsuo Satake
    • Satoshi AraiHiroaki FuruichiKazumi TakahashiMitsuo Satake
    • G11B7/00G11B7/135
    • G11B7/22
    • In laser welding an optical part to a pickup case of an optical pickup device, outgas deposition on a lens surface can be inhibited, and positional shifting of the optical part can be reduced. The optical part has a lens surface facing in an optical axis direction and a protruding part formed, to be joined to the pickup case, at an end portion thereof in a direction perpendicular to the optical axis. A joint surface between the protruding part and the pickup case extends in a direction parallel to the optical axis, and the joint surface is fixed by a weld portion formed by laser irradiation. The joint surface is parallel to a bottom surface of the pickup case, and the height from the bottom surface is approximately equal to the height of the center of the lens surface.
    • 在将光学部件激光焊接到光学拾取装置的拾取壳体时,可以抑制透镜表面上的气相沉积,并且可以减少光学部件的位置偏移。 光学部件具有面向光轴方向的透镜表面,并且在垂直于光轴的方向的端部形成有与拾取壳体接合的突出部。 突出部和拾取壳之间的接合面在与光轴平行的方向上延伸,接合面由通过激光照射形成的焊接部固定。 接头表面平行于拾取器壳体的底表面,并且从底表面的高度近似等于透镜表面中心的高度。