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    OPTICAL PICKUP DEVICE AND OPTICAL DISC APPARATUS APPLYING THE SAME
    3.
    发明申请
    OPTICAL PICKUP DEVICE AND OPTICAL DISC APPARATUS APPLYING THE SAME 审中-公开
    光拾取装置和光盘装置

    公开(公告)号：US20120176881A1

    公开(公告)日：2012-07-12

    申请号：US13303393

    申请日：2011-11-23

    申请人： Seong-su PARK ,  Soo-han PARK ,  Jung-woo HONG ,  Se-june PARK ,  Dong-jin SHIN ,  Ichiro MORISHITA

    发明人： Seong-su PARK ,  Soo-han PARK ,  Jung-woo HONG ,  Se-june PARK ,  Dong-jin SHIN ,  Ichiro MORISHITA

    IPC分类号： G11B7/135

    CPC分类号： G11B7/1365 ,  G11B7/1398

    摘要： An optical pickup device is provided. The device includes a semiconductor laser light source which outputs linearly-polarized light having an elliptical shape, an objective lens which focuses light outputted from the semiconductor laser light source, forming an optical spot on an optical disc; and a polarization plate which is disposed placed on an optical path between the semiconductor laser light source and the objective lens, and which polarizes the light outputted from the semiconductor laser light source and transmits elliptically-polarized light, wherein the polarization plate is disposed such that a major axis of the elliptical polarization of the light transmitted by the polarization plate is parallel to or perpendicular to a major axis of the elliptical shape of the light.

    摘要翻译： 提供一种光拾取装置。 该装置包括输出具有椭圆形的线偏振光的半导体激光光源，聚焦从半导体激光光源输出的光的物镜，在光盘上形成光点; 以及偏振板，其设置在所述半导体激光光源与所述物镜之间的光路上，使从所述半导体激光光源输出的光偏振并透射椭圆偏振光，其中，所述偏光板配置为 由偏振板透射的光的椭圆偏振的长轴平行于或垂直于光的椭圆形的长轴。

    OBJECTIVE LENS FOR OPTICAL PICKUP AND OPTICAL PICKUP APPARATUS HAVING THE SAME
    4.
    发明申请
    OBJECTIVE LENS FOR OPTICAL PICKUP AND OPTICAL PICKUP APPARATUS HAVING THE SAME 有权
    具有光学拾取和光学拾取装置的目标透镜

    公开(公告)号：US20130051209A1

    公开(公告)日：2013-02-28

    申请号：US13599473

    申请日：2012-08-30

    申请人： Seong-su PARK ,  Soo-han PARK ,  Woo-chang CHUN

    发明人： Seong-su PARK ,  Soo-han PARK ,  Woo-chang CHUN

    IPC分类号： G11B7/1353 ,  G02B5/18 ,  G02B3/00 ,  G11B7/1374 ,  G11B7/1376

    CPC分类号： G11B7/1381 ,  G02B5/1814 ,  G02B13/005 ,  G02B13/0055 ,  G11B7/1353 ,  G11B7/1374 ,  G11B2007/0006

    摘要： An objective lens for optical pickup and an optical pickup apparatus having the same are provided. The objective lens for optical pickup includes a light source side lens surface and a disc side lens surface. The light source side lens surface and the disc side lens surface each include an effective region disposed at a central region of the objective lens and a non-effective region disposed outside the effective region. An optical path changing element, disposed in the non-effective region of at least one of the light source side lens surface and the disc side lens surface, changes a path of light incident thereon.

    摘要翻译： 提供了一种用于光学拾取器的物镜和具有该物镜的光学拾取装置。 用于光学拾取器的物镜包括光源侧透镜表面和盘侧透镜表面。 光源侧透镜表面和盘侧透镜表面各自包括设置在物镜的中心区域的有效区域和设置在有效区域外的非有效区域。 设置在光源侧透镜表面和盘侧透镜表面中的至少一个的非有效区域中的光路改变元件改变入射到其上的光的路径。

    OPTICAL PICK-UP APPARATUS WITH DIFFRACTIVE OPTICAL ELEMENT AND OPTICAL RECORDING/REPRODUCING APPARATUS HAVING THE SAME
    5.
    发明申请
    OPTICAL PICK-UP APPARATUS WITH DIFFRACTIVE OPTICAL ELEMENT AND OPTICAL RECORDING/REPRODUCING APPARATUS HAVING THE SAME 有权
    具有衍射光学元件和光学记录/再现装置的光学拾取装置

    公开(公告)号：US20120155240A1

    公开(公告)日：2012-06-21

    申请号：US13316085

    申请日：2011-12-09

    申请人： Seong-su PARK ,  Joji ANZAI ,  Yong-han YOON ,  Jong-uk KIM ,  Ichiro MORISHITA

    发明人： Seong-su PARK ,  Joji ANZAI ,  Yong-han YOON ,  Jong-uk KIM ,  Ichiro MORISHITA

    IPC分类号： G11B7/1353 ,  G11B7/1374

    CPC分类号： G11B7/1374 ,  G11B7/1353

    摘要： An optical pick-up apparatus for reproducing information recorded on an optical recording medium or recording information on the optical recording medium is provided. The optical pick-up apparatus includes a light source unit which generates beams; a diffraction element which diffracts the generated beams; and an objective lens which focuses a p order diffracted beam which is used for recording and reproducing information among a plurality of diffracted beams which are diffracted by the diffraction element on any one of a plurality of information layers which are formed on an optical recording medium. A p±1 order diffracted beam which is not used for recording and reproducing information is focused away from the plurality of information recording layers and on the surface of the optical recording medium.

    摘要翻译： 提供了一种用于再现记录在光学记录介质上的信息或在光学记录介质上记录信息的光学拾取装置。 光学拾取装置包括产生光束的光源单元; 衍射元件衍射生成的光束; 以及物镜，其将用于在通过衍射元件衍射的多个衍射光束中记录和再现信息的p阶衍射光束聚焦在形成在光学记录介质上的多个信息层中的任何一个上。 不用于记录和再现信息的p±1级衍射光束从多个信息记录层和光记录介质的表面上聚焦。