利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

49 条记录 (耗时 0.041 秒)

    Optical pickup apparatus, recording/reproducing apparatus provided with the optical pickup apparatus, optical element, and information recording/reproducing method
    1.
    发明授权
    Optical pickup apparatus, recording/reproducing apparatus provided with the optical pickup apparatus, optical element, and information recording/reproducing method 有权
    光拾取装置，设置有光学拾取装置的记录/再现装置，光学元件和信息记录/再现方法

    公开(公告)号：US07889617B2

    公开(公告)日：2011-02-15

    申请号：US11976063

    申请日：2007-10-19

    申请人： Norikazu Arai ,  Toshiyuki Kojima ,  Toshihiko Kiriki ,  Kohei Ota ,  Shinichiro Saito

    发明人： Norikazu Arai ,  Toshiyuki Kojima ,  Toshihiko Kiriki ,  Kohei Ota ,  Shinichiro Saito

    IPC分类号： G11B7/00

    CPC分类号： G11B7/1353 ,  G11B7/1275 ,  G11B7/1374 ,  G11B7/139 ,  G11B7/13922 ,  G11B2007/0006

    摘要： An optical pickup apparatus for reproducing information from an optical information recording medium or for recording information onto an optical information recording medium, is provided with a first light source for emitting first light flux having a first wavelength; a second light source for emitting second light flux having a second wavelength, the first wavelength being different from the second wavelength; a converging optical system having an optical axis and a diffractive portion, and a photo detector; wherein in case that the first light flux passes through the diffractive portion to generate at least one diffracted ray, an amount of n-th ordered diffracted ray of the first light flux is greater than that of any other ordered diffracted ray of the first light flux, and in case that the second light flux passes through the diffractive portion to generate at least one diffracted ray, an amount of n-th ordered diffracted ray of the second light flux is greater than that of any other ordered diffracted ray of the second light flux, where n stands for an integer other than zero.

    摘要翻译： 一种用于从光学信息记录介质再现信息或将信息记录在光学信息记录介质上的光学拾取装置设置有用于发射具有第一波长的第一光通量的第一光源; 第二光源，用于发射具有第二波长的第二光束，所述第一波长不同于所述第二波长; 具有光轴和衍射部分的会聚光学系统和光电检测器; 其中在第一光束通过衍射部分以产生至少一个衍射光线的情况下，第一光通量的n阶衍射光线的量大于第一光通量的任何其它有序衍射光线的量 并且在第二光束通过衍射部分以产生至少一个衍射光线的情况下，第二光束的n阶衍射光线的量大于第二光的任何其它有序衍射光线的量 通量，其中n表示除零以外的整数。

    Optical pickup apparatus and objective lens
    7.
    发明授权
    Optical pickup apparatus and objective lens 有权
    光学拾取装置和物镜

    公开(公告)号：US06366542B1

    公开(公告)日：2002-04-02

    申请号：US09712122

    申请日：2000-11-15

    申请人： Toshiyuki Kojima ,  Norikazu Arai

    发明人： Toshiyuki Kojima ,  Norikazu Arai

    IPC分类号： G11B712

    CPC分类号： G11B7/1275 ,  G02B27/0037 ,  G02B27/4283 ,  G11B7/1353 ,  G11B7/1374 ,  G11B7/13922 ,  G11B2007/0006

    摘要： An optical pickup apparatus to conduct reproducing and/or recording information of an optical information recording medium, comprises a light source to emit a light flux having a wavelength of &lgr; (nm); a converging optical system to converge the light flux emitted from the light source onto a information recording surface of the optical information recording medium, the converging optical system having an objective lens; and an optical detector to receive reflected light from the optical information recording medium. The objective lens is a plastic lens, has a diffracting section on at least one surface thereof and satisfies the following conditional formula: 0.3≦&phgr;R/&phgr;≦1.5 where &phgr;R represents a refracting power of the objective lens on wavelength &lgr; (nm) of the light source and &phgr; represents a power of the objective lens in wavelength &lgr; nm of the light source.

    摘要翻译： 用于进行光信息记录介质的再现和/或记录信息的光拾取装置包括发射波长为lambd（nm）的光束的光源; 会聚光学系统，其将从光源发射的光束会聚到所述光学信息记录介质的信息记录表面上，所述会聚光学系统具有物镜; 以及用于接收来自光学信息记录介质的反射光的光学检测器。 物镜是塑料透镜，在其至少一个表面上具有衍射部分，并满足以下条件公式：0.3 <= phiR / phi <= 1.5其中，phiR表示物镜在波长λ（nm）上的折射能力， 的光源和phi表示光源的波长lambd nm的物镜的功率。

    Optical pickup apparatus, recording/reproducing apparatus provided with the optical pickup apparatus, optical element, and information recording/reproducing method
    9.
    发明授权
    Optical pickup apparatus, recording/reproducing apparatus provided with the optical pickup apparatus, optical element, and information recording/reproducing method 有权
    光拾取装置，设置有光学拾取装置的记录/再现装置，光学元件和信息记录/再现方法

    公开(公告)号：US07366078B2

    公开(公告)日：2008-04-29

    申请号：US11225096

    申请日：2005-09-14

    申请人： Norikazu Arai ,  Toshiyuki Kojima ,  Toshihiko Kiriki ,  Kohei Ota ,  Shinichiro Saito

    发明人： Norikazu Arai ,  Toshiyuki Kojima ,  Toshihiko Kiriki ,  Kohei Ota ,  Shinichiro Saito

    IPC分类号： G11B7/00

    CPC分类号： G11B7/1353 ,  G11B7/1275 ,  G11B7/1374 ,  G11B7/139 ,  G11B7/13922 ,  G11B2007/0006

    摘要： An optical pickup apparatus for reproducing information from an optical information recording medium or for recording information onto an optical information recording medium, is provided with a first light source for emitting first light flux having a first wavelength; a second light source for emitting second light flux having a second wavelength, the first wavelength being different from the second wavelength; a converging optical system having an optical axis and a diffractive portion, and a photo detector; wherein in case that the first light flux passes through the diffractive portion to generate at least one diffracted ray, an amount of n-th ordered diffracted ray of the first light flux is greater than that of any other ordered diffracted ray of the first light flux, and in case that the second light flux passes through the diffractive portion to generate at least one diffracted ray, an amount of n-th ordered diffracted ray of the second light flux is greater than that of any other ordered diffracted ray of the second light flux, where n stands for an integer other than zero.

    摘要翻译： 一种用于从光学信息记录介质再现信息或将信息记录在光学信息记录介质上的光学拾取装置设置有用于发射具有第一波长的第一光通量的第一光源; 第二光源，用于发射具有第二波长的第二光束，所述第一波长不同于所述第二波长; 具有光轴和衍射部分的会聚光学系统和光电检测器; 其中在第一光束通过衍射部分以产生至少一个衍射光线的情况下，第一光通量的n阶衍射光线的量大于第一光通量的任何其它有序衍射光线的量 并且在第二光束通过衍射部分以产生至少一个衍射光线的情况下，第二光束的n阶衍射光线的量大于第二光的任何其它有序衍射光线的量 通量，其中n表示除零以外的整数。

    Optical pickup optical system, optical pickup apparatus, coupling optical system, coupling optical system lens and recording/reproduction apparatus
    10.
    发明授权
    Optical pickup optical system, optical pickup apparatus, coupling optical system, coupling optical system lens and recording/reproduction apparatus 失效
    光学拾取光学系统，光学拾取装置，耦合光学系统，耦合光学系统透镜和记录/再现装置

    公开(公告)号：US06411587B1

    公开(公告)日：2002-06-25

    申请号：US09685012

    申请日：2000-10-05

    申请人： Norikazu Arai ,  Toshiyuki Kojima ,  Koji Honda

    发明人： Norikazu Arai ,  Toshiyuki Kojima ,  Koji Honda

    IPC分类号： G11B700

    CPC分类号： G11B7/1353 ,  G11B7/1275 ,  G11B7/1376 ,  G11B7/13922 ,  G11B2007/0006

    摘要： An optical pickup apparatus for recording and/or reproducing information on an optical information recording medium includes a light source emitting a light flux, a light-converging optical system to converge a light flux emitted from the light source, having a coupling optical system which changes a divergent angle of a light flux emitted from the light source and an objective lens optical system which converges a light flux emerging from the coupling optical system on an information recording surface of the optical information recording medium, and an optical detector for detecting reflected light or transmitted light coming from the information recording surface of the optical information recording medium. In the optical pickup apparatus, at least one surface of the coupling optical system is provided with a diffraction surface by which the longitudinal spherical aberration on the occasion wherein light having a wavelength differing from that of light with a prescribed wavelength by a prescribed difference of wavelength is made to enter the objective lens optical system through the coupling optical system is made to be smaller, compared with the longitudinal spherical aberration on the occasion wherein light having a wavelength different by a prescribed difference of wavelength is made to enter the objective lens optical system.

    摘要翻译： 一种用于在光学信息记录介质上记录和/或再现信息的光学拾取装置包括发射光束的光源，聚光光学系统以会聚从光源发射的光束，具有耦合光学系统，其改变 从光源发射的光束的发散角和将从耦合光学系统出射的光束会聚在光学信息记录介质的信息记录表面上的物镜光学系统，以及用于检测反射光的光学检测器或 来自光信息记录介质的信息记录表面的透射光。 在光拾取装置中，耦合光学系统的至少一个表面设置有衍射面，通过该衍射面，在具有与规定波长的光的波长不同的波长的光具有规定的波长差异的情况下， 通过耦合光学系统进入物镜光学系统被制成更小，与将波长不同于波长的波长的光进入物镜光学系统的情况相比，与纵向球面像差相比较 。