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    Optical head and optical recording apparatus
    6.
    发明申请
    Optical head and optical recording apparatus 审中-公开
    光头和光记录装置

    公开(公告)号：US20080002529A1

    公开(公告)日：2008-01-03

    申请号：US11821697

    申请日：2007-06-25

    申请人： Koujirou Sekine ,  Hiroaki Ueda ,  Manami Kuiseko ,  Naoki Nishida ,  Kenji Konno ,  Masahiro Okitsu ,  Hiroshi Hatano

    发明人： Koujirou Sekine ,  Hiroaki Ueda ,  Manami Kuiseko ,  Naoki Nishida ,  Kenji Konno ,  Masahiro Okitsu ,  Hiroshi Hatano

    IPC分类号： G11B5/127 ,  G11B5/31 ,  G11B5/39 ,  G11B7/00

    CPC分类号： G11B5/127 ,  G11B7/124 ,  G11B7/1374 ,  G11B7/1384 ,  G11B7/1387 ,  G11B2005/0021

    摘要： An optical head having: a graded index lens which receives incident light radiated from a linear optical guide at one end surface of the graded index lens and transmits the incident light from the other end surface of the graded index lens, the graded index lens is adapted to form a light spot at a position that is away from the other end surface from which the incident light is transmitted; a light path deflection section which deflects light transmitted from the graded index lens, the light path deflection section is arranged between the other end surface from which the incident light is transmitted and the position where the light spot is formed; and a slider which floats on a recording medium while moving relative to the recording medium, wherein at least the graded index lens and the light path deflection section are installed on the slider.

    摘要翻译： 一种光学头，具有：渐变折射率透镜，其接收从渐变折射率透镜的一个端面处的从线性光学引导器发射的入射光，并且透射来自渐变折射率透镜的另一端面的入射光， 在远离入射光的另一端面的位置处形成光点; 光路偏转部，其使从渐变折射率透镜发射的光偏转，光路偏转部配置在入射光的另一端面与形成有光斑的位置之间; 以及在相对于记录介质移动时漂浮在记录介质上的滑块，其中至少将渐变折射率透镜和光路偏转部分安装在滑块上。

    Optical Device, Optical Recording Head and Optical Recording Device
    10.
    发明申请
    Optical Device, Optical Recording Head and Optical Recording Device 审中-公开
    光学设备，光学记录头和光学记录装置

    公开(公告)号：US20110134740A1

    公开(公告)日：2011-06-09

    申请号：US13057666

    申请日：2009-07-13

    申请人： Koujirou Sekine ,  Hiroaki Ueda ,  Manami Kuiseko ,  Naoki Nishida ,  Hiroshi Hatano ,  Kou Osawa

    发明人： Koujirou Sekine ,  Hiroaki Ueda ,  Manami Kuiseko ,  Naoki Nishida ,  Hiroshi Hatano ,  Kou Osawa

    IPC分类号： G11B7/00 ,  G02B27/44

    CPC分类号： G11B5/314 ,  G11B2005/0005 ,  G11B2005/0021

    摘要： Provided is an optical device configured to makes it possible to enhance use efficiency of light. An optical device is provided with an optical element to deflect incident light and a fixation member on which the optical element is fixed. The optical element includes a reflective surface and a diffraction grating surface that deflects the incident light. The optical element is fixed on the fixation member to restrain displacement in accordance with temperature changes at portions thereof other than the reflective surface and the diffracting grating surface in such a condition that displacement is caused without restraint be temperature changes at the reflective surface and the diffraction grating surface. A change of the incident light in the deflection angle due to an inclination change by the reflective surface and the diffracting grating surface is suppressed by a change in a diffraction angle due to a periodical change in the diffraction grating by the displacement of the diffraction grating surface.

    摘要翻译： 提供了一种配置成可以提高光的使用效率的光学装置。 光学装置设置有用于偏转入射光的光学元件和固定有光学元件的固定构件。 光学元件包括反射表面和使入射光偏转的衍射光栅表面。 光学元件被固定在固定构件上，以便在反射面和衍射光栅表面以外的部分处的温度变化下抑制位移，使得在不受限制地产生位移的情况下，反射表面的温度变化和衍射 光栅表面。 通过衍射光栅表面的位移，由于衍射光栅的周期性变化引起的衍射角的变化来抑制由反射表面和衍射光栅表面的倾斜变化引起的偏转角中入射光的变化 。