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    Optical system for optical pickup apparatus, optical pickup apparatus, optical information recording and/or reproducing apparatus and aberration-correcting element for optical pickup apparatus
    1.
    发明授权
    Optical system for optical pickup apparatus, optical pickup apparatus, optical information recording and/or reproducing apparatus and aberration-correcting element for optical pickup apparatus 失效
    用于光学拾取装置的光学系统，光学拾取装置，光学信息记录和/或再现装置以及用于光学拾取装置的像差校正元件

    公开(公告)号：US07515523B2

    公开(公告)日：2009-04-07

    申请号：US10859982

    申请日：2004-06-04

    申请人： Tohru Kimura ,  Nobuyoshi Mori ,  Eiji Nomura

    发明人： Tohru Kimura ,  Nobuyoshi Mori ,  Eiji Nomura

    IPC分类号： G11B7/00

    CPC分类号： G11B7/1353 ,  G11B7/1367 ,  G11B7/1374 ,  G11B7/13922

    摘要： An optical system utilized in an optical pickup apparatus comprising: an aberration-correcting element made of a plastic material; and a converging lens to converge a light flux emitted from the aberration-correcting element, the converging lens being made of a plastic material, wherein the aberration-correcting element has a first optical surface provided thereon an optical path difference generating structure and has a second optical surface provided thereon a diffractive structure, and the converging lens is a single refractive lens having at least an aspherical surface.

    摘要翻译： 一种在光拾取装置中使用的光学系统，包括：由塑料材料制成的像差校正元件; 以及聚光透镜，用于会聚从像差修正元件发出的光束，会聚透镜由塑料材料制成，其中像差修正元件具有设置在其上的光程差产生结构的第一光学表面，并具有第二 在其上设置有衍射结构的光学表面，并且会聚透镜是具有至少非球面的单折射透镜。

    Optical pick-up device and optical information recording reproducing apparatus
    6.
    发明授权
    Optical pick-up device and optical information recording reproducing apparatus 失效
    光拾取装置和光信息记录重放装置

    公开(公告)号：US07345983B2

    公开(公告)日：2008-03-18

    申请号：US10949279

    申请日：2004-09-27

    申请人： Tohru Kimura ,  Eiji Nomura ,  Nobuyoshi Mori

    发明人： Tohru Kimura ,  Eiji Nomura ,  Nobuyoshi Mori

    IPC分类号： G11B7/00

    CPC分类号： G11B7/13925 ,  G11B7/123 ,  G11B7/1275 ,  G11B7/1353 ,  G11B7/1369 ,  G11B7/1378 ,  G11B2007/0006 ,  G11B2007/0013 ,  G11B2007/13727

    摘要： An optical pickup apparatus includes: first-third light sources; a packaged multiple light source unit for packaging emitting points of at least two of the first-third light sources in one housing; an objective optical system for converging light fluxes emitted by light sources onto information recording surfaces of at least three kinds of optical disks; and a magnification adjusting optical unit having an actuator and a movable lens group and being arranged in an optical path between the packaged multiple light source unit and the objective optical system, wherein the movable lens group is driven by the actuator along the optical axis so as to change a magnification of the objective optical system according to a wavelength of a light flux emitted by the packaged multiple light source unit.

    摘要翻译： 光拾取装置包括：第一至第三光源; 封装的多个光源单元，用于封装在一个外壳中发射至少两个第一三个光源的点; 用于将由光源发射的光束会聚到至少三种光盘的信息记录表面上的物镜光学系统; 以及具有致动器和可移动透镜组并且被布置在所述封装的多个光源单元和所述物镜光学系统之间的光路中的放大率调整光学单元，其中所述可移动透镜组由所述致动器沿着所述光轴驱动，以便 根据由封装的多个光源单元发射的光束的波长来改变物镜光学系统的放大倍率。

    Optical pick-up system, optical pick-up device, and optical information recording and/or reproducing apparatus
    7.
    发明申请
    Optical pick-up system, optical pick-up device, and optical information recording and/or reproducing apparatus 审中-公开
    光学拾取系统，光学拾取装置和光学信息记录和/或再现装置

    公开(公告)号：US20050068881A1

    公开(公告)日：2005-03-31

    申请号：US10949642

    申请日：2004-09-27

    申请人： Tohru Kimura ,  Nobuyoshi Mori ,  Kazutaka Noguchi

    发明人： Tohru Kimura ,  Nobuyoshi Mori ,  Kazutaka Noguchi

    IPC分类号： G02B1/04 ,  G02B5/18 ,  G02B13/18 ,  G11B7/00 ,  G11B7/135

    CPC分类号： G11B7/1378 ,  G02B5/1876 ,  G11B7/1353 ,  G11B7/1392 ,  G11B2007/0006

    摘要： An optical pick-up system comprising: a first light source for projecting a first light flux having a wavelength of not more than 450 nm; a second light source for projecting a second light flux having a wavelength within a range of 630 nm to 680 nm; an objective optical system for converging the first light flux on a first optical disk, and for converging a second light flux on a second optical disk, and having at least a plastic lens having a positive refractive power, and wherein a ratio ΔSA/ΔT of a change of a spherical aberration to a temperature change satisfies the following expression (1); and an aberration correction optical system arranged in an optical path between the first light source and the objective optical system, and having a plastic lens having a positive refractive power and a glass lens. ΔSA/ΔT>0  (1)

    摘要翻译： 一种光学拾取系统，包括：用于投射波长不大于450nm的第一光束的第一光源; 用于投射波长在630nm至680nm范围内的第二光束的第二光源; 用于将第一光束会聚在第一光盘上并用于将第二光束会聚在第二光盘上并具有至少具有正折光力的塑料透镜的物镜光学系统，并且其中ΔSA/ 球面像差对温度变化的改变满足以下表达式（1）; 以及配置在第一光源和物镜光学系统之间的光路中并具有正屈光力的塑料透镜和玻璃透镜的像差校正光学系统。 DeltaSA / DeltaT> 0（1）

    Optical pickup device, optical information recording and reproducing apparatus and objective lens
    9.
    发明授权
    Optical pickup device, optical information recording and reproducing apparatus and objective lens 失效
    光学拾取装置，光学信息记录和再现装置以及物镜

    公开(公告)号：US07253968B2

    公开(公告)日：2007-08-07

    申请号：US10821940

    申请日：2004-04-12

    申请人： Tohru Kimura ,  Nobuyoshi Mori ,  Kazutaka Noguchi

    发明人： Tohru Kimura ,  Nobuyoshi Mori ,  Kazutaka Noguchi

    IPC分类号： G02B13/18

    CPC分类号： G11B7/13922 ,  G11B2007/13727

    摘要： An optical pickup device comprises a light source to emit a light flux having wavelength λ; an objective lens including at least two plastic lenses of a first plastic lens having positive refractive power and a second plastic lens having positive refractive power, wherein the first plastic lens and the second plastic lens are arranged in this order from the light source side; and an actuator to drive the objective lens; wherein the objective lens satisfies the following expression (1-1): −0.0004

    摘要翻译： 光拾取装置包括发射波长为λ的光束的光源; 包括具有正屈光力的第一塑料透镜的至少两个塑料透镜和具有正屈光力的第二塑料透镜的物镜，其中所述第一塑料透镜和所述第二塑料透镜从所述光源侧依次布置; 以及用于驱动物镜的致动器; 其中物镜满足以下表达式（1-1）：<？in-line-formula description =“In-line formula”end =“lead”？> - 0.0004 .f。（1-m））<0.0004（1-1）<？in-line-formula description =“In-line Formulas”end =“tail”？>其中Delta3SA（lambdaRMS）表示 当物镜的整个体的温度均匀地变化时物镜的三阶球面像差f（mm）表示具有波长λ的光束的物镜的焦距，m表示物镜的放大倍数 物镜。

    Objective optical system, optical pickup apparatus and optical disk drive apparatus
    10.
    发明申请
    Objective optical system, optical pickup apparatus and optical disk drive apparatus 审中-公开
    物镜光学系统，光学拾取装置和光盘驱动装置

    公开(公告)号：US20050265151A1

    公开(公告)日：2005-12-01

    申请号：US11135449

    申请日：2005-05-24

    申请人： Tohru Kimura ,  Nobuyoshi Mori ,  Yuichi Atarashi ,  Kiyono Ikenaka

    发明人： Tohru Kimura ,  Nobuyoshi Mori ,  Yuichi Atarashi ,  Kiyono Ikenaka

    IPC分类号： G11B7/00 ,  G11B7/135

    CPC分类号： G11B7/1353 ,  G11B7/1374 ,  G11B7/13922

    摘要： An objective optical system for use in an optical pickup apparatus which reproduces and/or records information on an information recording surface of first-third optical disks, the objective optical system includes a first optical element, a first part comprising a material A, a second part comprising a material b, wherein the first part and the second part are laminated on the first optical element in an optical axis of the objective optical system, and the material A and the material B have different Abbe constants for d-line each other and a first phase structure formed on a boundary between the first part and the second part.

    摘要翻译： 一种用于在第一至第三光盘的信息记录表面上再现和/或记录信息的光学拾取装置中的物镜光学系统，所述物镜光学系统包括第一光学元件，包括材料A的第一部分， 包括材料b的部分，其中第一部分和第二部分在物镜光学系统的光轴上层压在第一光学元件上，并且材料A和材料B具有彼此d线的不同的阿贝常数， 形成在第一部分和第二部分之间的边界上的第一相位结构。