公开(公告)号：US07957231B2

公开(公告)日：2011-06-07

申请号：US12533070

申请日：2009-07-31

申请人： Tohru Kimura ,  Yuichi Atarashi ,  Kiyono Ikenaka ,  Kenji Ogiwara ,  Eiji Nomura

发明人： Tohru Kimura ,  Yuichi Atarashi ,  Kiyono Ikenaka ,  Kenji Ogiwara ,  Eiji Nomura

IPC分类号： G11B7/00

CPC分类号： G11B7/1367 ,  G11B7/1275 ,  G11B7/1374 ,  G11B7/1376 ,  G11B7/13925 ,  G11B2007/0006

摘要： A light flux from the first light source forms a converged spot on first optical information recording medium by only a refraction action of the aspheric surface, or by a combination of the refraction action and an optical action given by at least one of the first phase structure and the second phase structure, a light flux from the second light source forms a converged spot on second optical recording medium by a combination of a refraction action of the aspheric surface and an optical action given by at least one of the first phase structure and the second phase structure, and a light flux from the third light source forms a converged spot on third optical recording medium by a combination of a refraction action of the aspheric surface and an optical action given by at least one of the first phase structure and the second phase structure.

摘要翻译： 来自第一光源的光束仅通过非球面的折射作用或通过由第一相结构中的至少一个给出的折射作用和光学作用的组合在第一光学信息记录介质上形成会聚点 和第二相结构，来自第二光源的光束通过非球面的折射作用和由第一相结构和第二相结构中的至少一个给出的光学作用的组合在第二光学记录介质上形成会聚点 第二相结构，并且来自第三光源的光束通过非球面的折射作用和由第一相结构和第二相结构中的至少一个给出的光学作用的组合在第三光学记录介质上形成会聚点 相结构。

公开(公告)号：US20060203692A1

公开(公告)日：2006-09-14

申请号：US11366546

申请日：2006-03-03

申请人： Kohei Ota ,  Nobuyoshi Mori ,  Junji Hashimura ,  Tohru Kimura ,  Kiyono Ikenaka ,  Katsuya Sakamoto ,  Eiji Nomura

发明人： Kohei Ota ,  Nobuyoshi Mori ,  Junji Hashimura ,  Tohru Kimura ,  Kiyono Ikenaka ,  Katsuya Sakamoto ,  Eiji Nomura

IPC分类号： G11B7/00

CPC分类号： G11B7/1367 ,  G11B7/1275 ,  G11B7/1353 ,  G11B7/1374 ,  G11B7/13922 ,  G11B2007/0006

摘要： An optical pickup apparatus includes: a first light source for emitting a first light flux; a second light source for emitting a second light flux; a third light source for emitting a third light flux; and an objective optical unit having a first optical path difference providing structure and a second optical path difference providing structure. Magnifications of the objective optical unit for the first-third light fluxes have almost same value. The first optical path difference providing structure provides a predefined optical path difference and changes a spherical aberration to be one of under-correction and over-correction for all of the first light flux, the second light flux, and the third light flux. The second optical path difference providing structure provides a predefined optical path difference and changes a spherical aberration to be the other of under-correction and over-correction of the spherical aberration only for the second light flux.

摘要翻译： 一种光学拾取装置包括：用于发射第一光通量的第一光源; 用于发射第二光通量的第二光源; 用于发射第三光通量的第三光源; 以及具有第一光程差提供结构和第二光程差提供结构的物镜光学单元。 用于第一至第三光束的物镜光学单元的放大率具有几乎相同的值。 第一光程差提供结构提供预定的光程差，并且将球面像差改变为对于所有第一光通量，第二光通量和第三光通量的校正和过校正之一。 第二光程差提供结构提供预定的光程差，并且将球面像差改变为仅用于第二光通量的球面像差的校正不足和过校正。

公开(公告)号：US07957249B2

公开(公告)日：2011-06-07

申请号：US12552189

申请日：2009-09-01

申请人： Tohru Kimura ,  Eiji Nomura

发明人： Tohru Kimura ,  Eiji Nomura

IPC分类号： G11B7/00

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

摘要： An objective lens according to the present invention is an objective lens used for an optical pickup apparatus, and the objective lens includes a superimposed structure on a surface of a lens with a power in which a first optical path difference providing structure changing spherical aberration in under-corrected direction when a wavelength of an incident light flux becomes longer, and a second optical path difference providing structure changing spherical aberration in over-corrected direction when a wavelength of an incident light flux becomes longer are superimposed.

摘要翻译： 根据本发明的物镜是用于光学拾取装置的物镜，并且物镜在具有第一光程差提供结构改变下面的球面像差的功率的透镜的表面上包括叠加结构 当入射光束的波长变长时，校正方向以及当入射光束的波长变长时，在过校正方向上改变球面像差的第二光程差提供结构。

公开(公告)号：US07889618B2

公开(公告)日：2011-02-15

申请号：US11222073

申请日：2005-09-09

申请人： Tohru Kimura ,  Yuichi Atarashi ,  Kiyono Ikenaka ,  Kenji Ogiwara ,  Eiji Nomura

发明人： Tohru Kimura ,  Yuichi Atarashi ,  Kiyono Ikenaka ,  Kenji Ogiwara ,  Eiji Nomura

IPC分类号： G11B7/00

CPC分类号： G11B7/1367 ,  G11B7/1275 ,  G11B7/1374 ,  G11B7/1376 ,  G11B7/13925 ,  G11B2007/0006

摘要： A first phase structure corrects at least one of a spherical aberration due to a difference between a protective substrate thickness t1 and a protective substrate thickness t2 and a spherical aberration due to a difference between a first wavelength λ1 and a second wavelength λ2, and a second phase structure corrects at least one of a spherical aberration generated when the first wavelength λ1 is changed in a range of ±10 nm, a best image point movement generated when the first wavelength λ1 is changed in a range of ±10 nm, and a spherical aberration generated when environmental temperature is changed.

摘要翻译： 第一相位结构校正由于保护基板厚度t1和保护基板厚度t2之间的差异引起的球面像差和由于第一波长λ1和第二波长λ2之间的差异引起的球面像差中的至少一个， 相位结构校正当第一波长λ1在±10nm的范围内变化时产生的球面像差中的至少一个，当第一波长λ1在±10nm的范围内变化时产生的最佳图像点移动，以及球面 当环境温度改变时产生的像差。

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。

公开(公告)号：US20060077793A1

公开(公告)日：2006-04-13

申请号：US11222137

申请日：2005-09-09

申请人： Tohru Kimura ,  Yuichi Atarashi ,  Kiyono Ikenaka ,  Kenji Ogiwara ,  Eiji Nomura

发明人： Tohru Kimura ,  Yuichi Atarashi ,  Kiyono Ikenaka ,  Kenji Ogiwara ,  Eiji Nomura

IPC分类号： G11B7/00

CPC分类号： G11B7/1367 ,  G11B7/1275 ,  G11B7/1374 ,  G11B7/1376 ,  G11B7/13925 ,  G11B2007/0006

摘要： A light flux from the first light source forms a converged spot on first optical information recording medium by only a refraction action of the aspheric surface, or by a combination of the refraction action and an optical action given by at least one of the first phase structure and the second phase structure, a light flux from the second light source forms a converged spot on second optical recording medium by a combination of a refraction action of the aspheric surface and an optical action given by at least one of the first phase structure and the second phase structure, and a light flux from the third light source forms a converged spot on third optical recording medium by a combination of a refraction action of the aspheric surface and an optical action given by at least one of the first phase structure and the second phase structure.

摘要翻译： 来自第一光源的光束仅通过非球面的折射作用或通过由第一相结构中的至少一个给出的折射作用和光学作用的组合在第一光学信息记录介质上形成会聚点 和第二相结构，来自第二光源的光束通过非球面的折射作用和由第一相结构和第二相结构中的至少一个给出的光学作用的组合在第二光学记录介质上形成会聚点 第二相结构，并且来自第三光源的光束通过非球面的折射作用和由第一相结构和第二相结构中的至少一个给出的光学作用的组合在第三光学记录介质上形成会聚点 相结构。

公开(公告)号：US07623434B2

公开(公告)日：2009-11-24

申请号：US11258280

申请日：2005-10-26

申请人： Tohru Kimura ,  Eiji Nomura

发明人： Tohru Kimura ,  Eiji Nomura

IPC分类号： G11B7/00

CPC分类号： G11B7/1374 ,  G11B7/1353 ,  G11B7/13922 ,  G11B7/13925 ,  G11B2007/0006

摘要： An objective optical lens for use in an optical pickup apparatus, includes: an optical surface divided into at least two areas including: a central area including a first diffractive structure; and a peripheral area including a second diffractive structure, the objective lens is a single lens and is commonly used for the first to third optical information recording media, the objective lens converges diffracted light fluxes with same diffraction order generated in the first diffractive structure onto information recording surfaces of the first to third optical information recording media, respectively, the objective lens converges diffracted light fluxes with different diffraction order generated in the second diffractive structure onto information recording surfaces of the first and second optical information recording media, respectively.

摘要翻译： 一种用于光学拾取装置的物镜光学透镜，包括：分为至少两个区域的光学表面，包括：包括第一衍射结构的中心区域; 和包括第二衍射结构的周边区域，物镜是单透镜，并且通常用于第一至第三光学信息记录介质，物镜将在第一衍射结构中产生的相同衍射级的衍射光束会聚到信息 物镜分别记录第一至第三光学信息记录介质的表面，物镜将在第二衍射结构中产生的不同衍射级的衍射光束分别收集到第一和第二光学信息记录介质的信息记录表面上。

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：US20050207315A1

公开(公告)日：2005-09-22

申请号：US11080452

申请日：2005-03-16

申请人： Eiji Nomura ,  Junji Hashimura ,  Tohru Kimura ,  Kazutaka Noguchi

发明人： Eiji Nomura ,  Junji Hashimura ,  Tohru Kimura ,  Kazutaka Noguchi

IPC分类号： G11B7/00 ,  G11B7/135

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

摘要： An objective optical system for use in an optical pickup apparatus, comprises an aberration correcting element having at least two phase structures of a first and second phase structures; and a light converging element to converge the first light flux emitted from the aberration correcting element onto an information recording plane of the first optical disk and to converge the second light flux emitted from the aberration correcting element onto an information recording plane of the second optical disk; wherein the second phase structure refrains at least one of a change in the light converging characteristic of the objective optical system due to a change in the wavelength of the first light flux and a change in the light converging characteristic of the objective optical system due to a change in environmental temperature.

摘要翻译： 一种用于光学拾取装置的物镜光学系统，包括具有第一和第二相结构的至少两个相位结构的像差校正元件; 以及聚光元件，用于将从像差校正元件发射的第一光束会聚到第一光盘的信息记录面上，并将从像差校正元件发射的第二光束会聚到第二光盘的信息记录面上 ; 其特征在于，所述第二相位结构由于第一光束的波长的变化和物镜光学系统的会聚特性的变化而导致物镜光学系统的会聚特性的变化中的至少一个， 环境温度变化。

公开(公告)号：US07660225B2

公开(公告)日：2010-02-09

申请号：US11348477

申请日：2006-02-07

申请人： Tohru Kimura ,  Eiji Nomura

发明人： Tohru Kimura ,  Eiji Nomura

IPC分类号： G11B7/00

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

摘要： An objective lens according to the present invention is an objective lens used for an optical pickup apparatus, and the objective lens includes a superimposed structure on a surface of a lens with a power in which a first optical path difference providing structure changing spherical aberration in under-corrected direction when a wavelength of an incident light flux becomes longer, and a second optical path difference providing structure changing spherical aberration in over-corrected direction when a wavelength of an incident light flux becomes longer are superimposed.

摘要翻译： 根据本发明的物镜是用于光学拾取装置的物镜，并且物镜在具有第一光程差提供结构改变下面的球面像差的功率的透镜的表面上包括叠加结构 当入射光束的波长变长时，校正方向以及当入射光束的波长变长时，在过校正方向上改变球面像差的第二光程差提供结构。