知搜-全球专利检索

  1. 登录
  2. 注册

搜索结果

4 条记录 (耗时 0.017 秒)

    OPTICAL BEAM FORMING APPARTUS
    1.
    发明申请
    OPTICAL BEAM FORMING APPARTUS 审中-公开
    光束形成APPARTUS

    公开(公告)号：US20110205880A1

    公开(公告)日：2011-08-25

    申请号：US13033868

    申请日：2011-02-24

    申请人： Bong-gi KIM ,  Young-man Ahn ,  Ichiro Morishita

    发明人： Bong-gi KIM ,  Young-man Ahn ,  Ichiro Morishita

    IPC分类号： G11B7/00

    CPC分类号： G11B7/1398 ,  G11B7/0903 ,  G11B7/1365 ,  G11B7/1374

    摘要： An optical beam forming apparatus capable of forming a polarization of laser beam into an elliptic polarization includes a beam source to emit a semiconductor laser beam, a wave plate to receive the beam emitted from the beam source and to form an elliptic polarization, and a lens to focus the beam passed through the wave plate to form a beam spot on a disc.

    摘要翻译： 能够将激光束的偏振形成为椭圆偏振的光束形成装置包括发射半导体激光束的光束源，接收从光束源发射的光束并形成椭圆偏振的波片，以及透镜 以将通过波片的光束聚焦以在光盘上形成光斑。

    ASPHERIC LENS AND OPTICAL PICKUP INCLUDING THE SAME
    2.
    发明申请
    ASPHERIC LENS AND OPTICAL PICKUP INCLUDING THE SAME 有权
    平面镜头和光学拾取器，包括它们

    公开(公告)号：US20100165821A1

    公开(公告)日：2010-07-01

    申请号：US12645989

    申请日：2009-12-23

    申请人： Bong-gi KIM ,  Ichiro MORISHITA ,  Soo-han PARK ,  Joong-eon SEO

    发明人： Bong-gi KIM ,  Ichiro MORISHITA ,  Soo-han PARK ,  Joong-eon SEO

    IPC分类号： G11B7/00

    CPC分类号： G02B3/04 ,  G11B7/1374 ,  G11B7/13922

    摘要： An aspheric lens includes at least one aspheric lens surface, and an angle of inclination on the aspheric lens surface is smaller than or equal to 65°. The aspheric lens surface is given by the equation Z  ( r ) = cr 2 1 + 1 - ( 1 + K )  c 2  r 2 + Lr 2 + Ar 4 + Br 6 + Cr 8 + Dr 10 + Er 12 + Fr 14 + Gr 16 + Hr 18 + Jr 20 where L≠0, c is a curvature, r2=x2+y2, K is a conic integer, and L and A through J are aspheric coefficients.

    摘要翻译： 非球面透镜包括至少一个非球面透镜表面，非球面透镜表面上的倾斜角小于或等于65°。 非球面透镜表面由等式Z（r）= cr 2 1 + 1 - （1 + K）c 2 r 2 + Lr 2 + Ar 4 + Br 6 + Cr 8 + Dr 10 + Er 12 + Fr 14 + Gr 16 + Hr 18 + Jr 20其中L≠0，c是曲率，r2 = x2 + y2，K是圆锥整数，L和A到J是非球面系数。

    OPTICAL PICKUP APPARATUS
    3.
    发明申请
    OPTICAL PICKUP APPARATUS 有权

    公开(公告)号：US20080156965A1

    公开(公告)日：2008-07-03

    申请号：US11931005

    申请日：2007-10-31

    申请人： Bong-gi KIM

    发明人： Bong-gi KIM

    IPC分类号： G02B7/04

    CPC分类号： G11B7/1353 ,  G11B7/0903 ,  G11B2007/0013

    摘要： An optical pickup apparatus includes a light source to emit light of a predetermined wavelength, an objective lens to focus the light emitted from the light source to form a light spot on an optical disc having a plurality of recording layers, a photodetector to detect a signal and an error signal by detecting the light reflected from the optical disc, and a light scattering portion to reduce an amount of the light reflected from a non-target layer of the recording layers and incident on the photodetector by scattering part of the light reflected from the optical disc during a reproduction of data from the optical disc.

    摘要翻译： 一种光拾取装置，包括发射预定波长的光的光源，用于聚焦从光源发射的光以在具有多个记录层的光盘上形成光斑的物镜;检测信号的光电检测器 以及通过检测从光盘反射的光的误差信号和光散射部分，以减少从记录层的非目标层反射的光的量并且通过散射部分反射的光入射到光电检测器上 在从光盘再现数据期间的光盘。