公开(公告)号：US20090028033A1

公开(公告)日：2009-01-29

申请号：US11918659

申请日：2006-04-14

申请人： Tohru Kimura

发明人： Tohru Kimura

IPC分类号： G11B7/00

CPC分类号： G02B27/4272 ,  G02B27/42 ,  G02B27/4238 ,  G02B27/4294 ,  G11B7/1367 ,  G11B7/13922 ,  G11B2007/0006

摘要： An optical element for optical pickup device is provided with an optical path difference providing structure which provides a substantial phase change to a light flux having a predefined wavelength. The optical path difference providing structure is provided with a step portion having a smaller step difference than the predefined wavelength in an optical axis direction.

摘要翻译： 用于光学拾取装置的光学元件设置有向具有预定波长的光通量提供实质相位变化的光程差提供结构。 光路差提供结构具有在光轴方向上具有比预定波长小的台阶差的台阶部分。

公开(公告)号：US07460460B2

公开(公告)日：2008-12-02

申请号：US11062004

申请日：2005-02-18

申请人： Tohru Kimura

发明人： Tohru Kimura

IPC分类号： G11B7/135

CPC分类号： G11B7/1374 ,  G11B7/1367 ,  G11B7/13922 ,  G11B2007/0006 ,  G11B2007/13727

摘要： An objective optical system for use in an optical pickup apparatus for converging first and second parallel light fluxes includes: a first lens group having a phase structure; and a second lens group, wherein the first lens group and the second lens group are arranged in the objective optical system in this order from a longer conjugate distance side of the objective optical system, and a wavefront aberration of the first lens group WL1λ1, a wavefront aberration of the second lens group WL2λ1, a magnification of the second lens group M, a wavefront aberration of the second lens group WL2λ2, a wavefront aberration of the objective optical system WOBJλ2 are satisfy predescribed expressions.

摘要翻译： 用于会聚第一和第二平行光束的光学拾取装置中的物镜光学系统包括：具有相位结构的第一透镜组; 以及第二透镜组，其中，所述第一透镜组和所述第二透镜组从所述物镜光学系统的较长共轭距离侧依次配置在所述物镜光学系统中，并且所述第一透镜组WL1l1,1a1的波前像差 第二透镜组WL2λ1的波前像差，第二透镜组M的倍率，第二透镜组WL2λ2的波前像差，物镜光学系统WOBJ1λ2的波前像差满足预先描述的表达式。

公开(公告)号：US07408866B2

公开(公告)日：2008-08-05

申请号：US10772544

申请日：2004-02-05

申请人： Tohru Kimura

发明人： Tohru Kimura

IPC分类号： G11B7/00

CPC分类号： G11B7/1374 ,  G02B5/1895 ,  G02B27/0037 ,  G02B27/4238 ,  G11B7/1353 ,  G11B2007/0006

摘要： An objective lens, comprises a first diffractive structure having plural concentric ring-shaped zones. A n1-th order diffracted ray is converged on an information recording surface of first optical information recording medium through first protective substrate in such a way that when a wavefront aberration is measured within a first numerical aperture NA1, the RMS value of the wavefront aberration becomes 0.07λ1 or less, and a n2-th order diffracted ray (n2

摘要翻译： 物镜包括具有多个同心环形区域的第一衍射结构。 n级1级衍射光线通过第一保护衬底会聚在第一光学信息记录介质的信息记录表面上，使得当在第一数值孔径NA 1内测量波前像差时，波前的RMS值 像差变为0.07λ1以下，2级衍射光线（n 2

公开(公告)号：US07369481B2

公开(公告)日：2008-05-06

申请号：US10866902

申请日：2004-06-15

申请人： Tohru Kimura ,  Kiyoshi Yamashita ,  Nobuyoshi Mori ,  Yuichi Atarashi

发明人： Tohru Kimura ,  Kiyoshi Yamashita ,  Nobuyoshi Mori ,  Yuichi Atarashi

IPC分类号： G11B7/00

CPC分类号： G11B7/1369 ,  G11B7/1275 ,  G11B7/1353 ,  G11B7/1374 ,  G11B7/1376 ,  G11B7/1378 ,  G11B7/13922 ,  G11B7/13925 ,  G11B2007/0006 ,  G11B2007/13727

摘要： An optical system for use in an optical pickup apparatus comprises a first optical surface having a superposition type diffractive structure including a plurality of ring-shaped zones which are formed concentrically around an optical axis, wherein each ring-shaped zone is composed of a plurality of stepped sections stepwise, and a second optical surface having a diffractive structure including a plurality of ring-shaped zones which are formed concentrically around an optical axis, wherein each of the plurality of ring-shaped zones are divided by a stepped section to generate a diffractive light ray of diffractive order whose absolute value is not small than 1 for the light flux.

摘要翻译： 一种用于光学拾取装置的光学系统包括具有叠加型衍射结构的第一光学表面，该叠置型衍射结构包括围绕光轴同心地形成的多个环形区域，其中每个环形区域由多个 并且具有衍射结构的第二光学表面，所述衍射结构包括围绕光轴同心地形成的多个环形区域，其中，所述多个环形区域中的每一个被阶梯部分分割以产生衍射 光通量的绝对值不小于1的衍射光线。

公开(公告)号：US07359255B2

公开(公告)日：2008-04-15

申请号：US11438345

申请日：2006-05-23

申请人： Tohru Kimura ,  Masahiro Yoshihara ,  Masaru Koyanagi

发明人： Tohru Kimura ,  Masahiro Yoshihara ,  Masaru Koyanagi

IPC分类号： G11C7/00

CPC分类号： H03M1/1061 ,  G11C5/147 ,  G11C16/30 ,  G11C29/02 ,  G11C29/021 ,  G11C29/028

摘要： A reference voltage generation circuit generates a reference voltage. An internal voltage generation circuit generates an internal voltage on the basis of the reference voltage generated by the reference voltage generation circuit. A first trimming circuit trims the internal voltage. During trimming of the internal voltage, the first trimming circuit trims an externally supplied first target voltage in accordance with first trimming data. The first trimming circuit ends the trimming when the first target voltage meets a given condition for the reference voltage.

摘要翻译： 参考电压产生电路产生参考电压。 内部电压产生电路基于由参考电压产生电路产生的参考电压产生内部电压。 第一个微调电路修剪内部电压。 在微调内部电压期间，第一微调电路根据第一微调数据修正外部提供的第一目标电压。 当第一目标电压满足参考电压的给定条件时，第一微调电路结束修整。

公开(公告)号：US07352517B2

公开(公告)日：2008-04-01

申请号：US11416168

申请日：2006-05-03

申请人： Tohru Kimura

发明人： Tohru Kimura

IPC分类号： G02B13/00

CPC分类号： G11B7/1374 ,  G02B3/08 ,  G11B7/1353 ,  G11B7/1367 ,  G11B7/13922 ,  G11B2007/0006

摘要： An optical pickup apparatus for conducting at least recording or reproducing of information on two types of optical information recording media having protective substrates with different thicknesses, includes: a first light source for emitting a first light flux with a wavelength λ1; a first objective lens for converging the first light flux on an information recording surface of a first optical information recording medium when the optical pickup apparatus reproduces or records information for the first optical information medium; and a second objective lens for converging the first light flux on an information recording surface of a second optical information recording medium when the optical pickup apparatus reproduces or records information for the second optical information medium, wherein effective diameters of the first objective lens and the second objective lens are substantially same.

摘要翻译： 一种用于至少对具有不同厚度的保护衬底的光学信息记录介质的信息进行至少记录或再现的光拾取装置，包括：用于发射波长λ1的第一光通量的第一光源; 第一物镜，用于当光学拾取装置再现或记录第一光学信息介质的信息时，将第一光束会聚在第一光学信息记录介质的信息记录表面上; 以及第二物镜，用于当光学拾取装置再现或记录第二光学信息介质的信息时，将第一光束会聚在第二光学信息记录介质的信息记录表面上，其中第一物镜和第二物镜的有效直径 物镜基本相同。

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。

公开(公告)号：US07330420B2

公开(公告)日：2008-02-12

申请号：US10624535

申请日：2003-07-23

申请人： Tohru Kimura ,  Shogo Yamamoto

发明人： Tohru Kimura ,  Shogo Yamamoto

IPC分类号： G11B7/00

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

摘要： An objective lens unit for use in an optical pickup apparatus, includes a first optical element arranged opposite to the optical information recording medium; a second optical element arranged at a light source side of the first optical element opposite to the first optical element and including a ring-shaped structure in which plural ring-shaped zones are formed on at least one optical surface of the second optical element such that neighboring ring-shaped zones cause a predetermined optical path difference for incident rays; and each of the first and second optical elements having a optical functional section and a flange section formed around the optical functional section, wherein the flange section of the first optical element and the flange section of the second optical element are formed so as to fix the first and second optical elements at predetermined respective relative positions.

摘要翻译： 一种用于光学拾取装置的物镜单元，包括与光学信息记录介质相对布置的第一光学元件; 布置在与第一光学元件相对的第一光学元件的光源侧的第二光学元件，并且包括在第二光学元件的至少一个光学表面上形成有多个环形区域的环形结构，使得 相邻的环形区域对入射光线造成预定的光程差; 并且第一和第二光学元件中的每一个具有形成在光学功能部分周围的光学功能部分和凸缘部分，其中第一光学元件的凸缘部分和第二光学元件的凸缘部分被形成为将 第一和第二光学元件在预定的相应位置。

公开(公告)号：US20060250704A1

公开(公告)日：2006-11-09

申请号：US11416168

申请日：2006-05-03

申请人： Tohru Kimura

发明人： Tohru Kimura

IPC分类号： G02B3/02

CPC分类号： G11B7/1374 ,  G02B3/08 ,  G11B7/1353 ,  G11B7/1367 ,  G11B7/13922 ,  G11B2007/0006

摘要： An optical pickup apparatus for conducting at least recording or reproducing of information on two types of optical information recording media having protective substrates with different thicknesses, includes: a first light source for emitting a first light flux with a wavelength λ1; a first objective lens for converging the first light flux on an information recording surface of a first optical information recording medium when the optical pickup apparatus reproduces or records information for the first optical information medium; and a second objective lens for converging the first light flux on an information recording surface of a second optical information recording medium when the optical pickup apparatus reproduces or records information for the second optical information medium, wherein effective diameters of the first objective lens and the second objective lens are substantially same.

摘要翻译： 一种用于至少对具有不同厚度的保护衬底的光学信息记录介质的信息进行至少记录或再现的光拾取装置，包括：用于发射波长λ1的第一光通量的第一光源; 第一物镜，用于当光学拾取装置再现或记录第一光学信息介质的信息时，将第一光束会聚在第一光学信息记录介质的信息记录表面上; 以及第二物镜，用于当光学拾取装置再现或记录第二光学信息介质的信息时，将第一光束会聚在第二光学信息记录介质的信息记录表面上，其中第一物镜和第二物镜的有效直径 物镜基本相同。

公开(公告)号：US07133332B2

公开(公告)日：2006-11-07

申请号：US10346782

申请日：2003-01-17

申请人： Tohru Kimura

发明人： Tohru Kimura

IPC分类号： G11B7/00

CPC分类号： G11B7/1353 ,  G11B7/1374 ,  G11B7/1378 ,  G11B7/13922 ,  G11B7/13925 ,  G11B2007/0013

摘要： A light-converging optical system has an objective lens arranged at a position to be opposite to an optical information recording medium and including at least one plastic lens, and an aberration correcting element provided on an optical path between the light source and the objective lens and structured by two groups of a positive lens and a negative lens both being a plastic lens. At least one of the positive lens and the negative lens has at least one diffractive surface on which a diffractive structure is formed and a total paraxial power of the aberration correcting element has a temperature dependency satisfying a formula of: PT1 PT0>PT2, where PT0, PT1 and PT2 are the total paraxial power (mm−1) of the aberration correcting element under the temperature of 25° C., −5° C. and 55° C. respectively.

摘要翻译： 聚光光学系统具有布置在与光学信息记录介质相对的位置处的物镜，并且包括至少一个塑料透镜和设置在光源和物镜之间的光路上的像差校正元件和 由两组正透镜和负透镜构成，均为塑料透镜。 正透镜和负透镜中的至少一个具有至少一个其上形成衍射结构的衍射表面，并且像差校正元件的总傍轴光焦度具有满足以下公式的温度依赖性：<？在线公式 描述=“在线公式”end =“lead”？> P

T1 > P P T1，T2和P2 T2是像差校正元件的总傍轴功率（mm ^{-1 ） 分别在25℃，-5℃和55℃的温度下进行。}