公开(公告)号：US06919996B2

公开(公告)日：2005-07-19

申请号：US10642199

申请日：2003-08-18

申请人： Kazuhiro Wada ,  Hiroyuki Hattori ,  Yayol Eguro ,  Norikazu Arai ,  Koji Honda ,  Yuichi Honda ,  Yuichi Atarashi

发明人： Kazuhiro Wada ,  Hiroyuki Hattori ,  Yayol Eguro ,  Norikazu Arai ,  Koji Honda ,  Yuichi Honda ,  Yuichi Atarashi

IPC分类号： G02B3/02 ,  G02B7/02 ,  G11B7/00

CPC分类号： G11B7/1374 ,  G02B7/022 ,  G11B2007/13727

摘要： An objective lens for use in an optical pickup apparatus, comprises a first lens molded with a plastic and having an optically functional section, flange section provided around the periphery of the optically functional section, and a first contacting section provided on the flange section; and a second lens molded with a plastic, located opposite to the first lens and having an optically functional section, a flange section provided around the periphery of the optically functional section, and a second contacting section provided on the flange section. The first lens and the second lens are joined in such a way that the first contacting section and the second contacting section are brought in contact with each other.

摘要翻译： 一种用于光学拾取装置的物镜，包括用塑料模制并具有光学功能部分的第一透镜，设置在光学功能部分周围的凸缘部分和设置在凸缘部分上的第一接触部分; 以及与所述第一透镜相对设置并且具有光学功能部分的塑料模制的第二透镜，设置在所述光学功能部分周围的凸缘部分和设置在所述凸缘部分上的第二接触部分。 第一透镜和第二透镜以使得第一接触部和第二接触部彼此接触的方式接合。

公开(公告)号：US06765732B2

公开(公告)日：2004-07-20

申请号：US10206187

申请日：2002-07-29

申请人： Shogo Yamamoto ,  Hiroyuki Hattori ,  Etsuzo Kurihara ,  Shinichiro Saito ,  Takashi Matsumaru ,  Taichiro Saito ,  Kazuo Ishida ,  Yuichi Atarashi ,  Norikazu Arai

发明人： Shogo Yamamoto ,  Hiroyuki Hattori ,  Etsuzo Kurihara ,  Shinichiro Saito ,  Takashi Matsumaru ,  Taichiro Saito ,  Kazuo Ishida ,  Yuichi Atarashi ,  Norikazu Arai

IPC分类号： G02B302

CPC分类号： G11B7/1374 ,  B29C45/27 ,  B29D11/00009 ,  B29D11/00432 ,  B29L2011/0016 ,  C03B11/08 ,  C03B2215/404 ,  C03B2215/49 ,  G02B3/04 ,  G11B7/22 ,  G11B11/10543 ,  Y02P40/57

摘要： An objective lens for use in an optical pickup apparatus for conducting recording and/or reproducing information for an optical information recording medium, has a lens section shaped in an approximate circle and including a flange section; and a connecting section integrally provided to the lens section. The objective lens satisfies the following conditional formulas: 0.5≦A≦2.0, 0.3A≦B≦1.7A where A is a diameter of the lens section when the lens section is viewed from an direction of an optical axis, and B is a width of the connecting section when the connecting section is viewed from the direction of the optical axis.

摘要翻译： 用于对光学信息记录介质进行记录和/或再现信息的光学拾取装置中的物镜具有近似圆形且包括凸缘部分的透镜部分; 以及与透镜部一体地设置的连接部。 该物镜满足以下条件式：其中，A是从光轴方向观察透镜部时的透镜部的直径，B是从连接部从方向观察时的连接部的宽度 的光轴。

公开(公告)号：US06747812B2

公开(公告)日：2004-06-08

申请号：US10298008

申请日：2002-11-18

申请人： Kohei Ota ,  Hidekazu Totsuka ,  Yuichi Atarashi

发明人： Kohei Ota ,  Hidekazu Totsuka ,  Yuichi Atarashi

IPC分类号： G02B1318

CPC分类号： G11B7/1392 ,  G11B7/1374 ,  G11B2007/0006

摘要： An objective lens for use in an optical pickup apparatus in which first and second light sources are provided on a same flat surface, converges each of the light fluxes from the first and second light sources onto an information recording plane through each of transparent substrates of a first and second optical information recording mediums and has a coma aberration of 0.015 &lgr;1 rms or less when recording or reproducing information is conducted for the first optical information recording medium, and a coma aberration of 0.015 &lgr;2 rms or less when recording or reproducing information is conducted for the second optical information recording medium.

摘要翻译： 一种用于光学拾取装置的物镜，其中第一和第二光源设置在相同的平面上，将来自第一和第二光源的每个光束通过每个透明基板收敛到信息记录平面上 第一和第二光学信息记录介质，并且当对第一光学信息记录介质进行记录或再现信息时具有0.015λ1rms或更小的彗形像差，并且当进行记录或再现信息时，彗差为0.015λ2rms或更小 用于第二光学信息记录介质。

公开(公告)号：US08077585B2

公开(公告)日：2011-12-13

申请号：US12493669

申请日：2009-06-29

申请人： Tohru Kimura ,  Junji Hashimura ,  Yuichi Atarashi ,  Toshiyuki Kojima

发明人： Tohru Kimura ,  Junji Hashimura ,  Yuichi Atarashi ,  Toshiyuki Kojima

IPC分类号： G11B7/00

CPC分类号： G11B7/1374 ,  G11B7/1378 ,  G11B2007/0006 ,  G11B2007/13727

摘要： An objective lens system for an optical pickup apparatus, includes in order from an object side: a first lens group having negative paraxial power P1 (mm−1); and a second lens group having positive paraxial power P2 (mm−1) for converging a light flux emitted from the first lens group on an information recording surface of an optical information recording medium.

摘要翻译： 一种用于光学拾取装置的物镜系统，从物体侧依次包括具有负近轴功率P1（mm-1）的第一透镜组; 以及具有正的近轴光焦度P2（mm-1）的第二透镜组，用于将从第一透镜组发射的光束会聚在光学信息记录介质的信息记录表面上。

公开(公告)号：US20110110216A1

公开(公告)日：2011-05-12

申请号：US13006250

申请日：2011-01-13

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： G11B7/135

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：US07872959B2

公开(公告)日：2011-01-18

申请号：US12326456

申请日：2008-12-02

申请人： Tohru Kimura ,  Katsuya Sakamoto ,  Yuichi Atarashi

发明人： Tohru Kimura ,  Katsuya Sakamoto ,  Yuichi Atarashi

IPC分类号： G11B7/00

CPC分类号： G11B7/1374 ,  G11B7/1275 ,  G11B7/1353 ,  G11B7/139 ,  G11B7/13925 ,  G11B2007/0006 ,  G11B2007/13727

摘要： A hybrid objective lens has a refractive lens and a diffractive optical element constructed by plural coaxial ring-shaped zones on at least one optical surface thereof. When n1, n2 and n3 each is a diffraction order of a diffracted ray having a maximum light amount among diffracted rays of each of first, second and third light flux having wavelength λ1, λ2 and λ3 when respective light flux comes to be incident into the diffractive structure respectively, the following formulas are satisfied: |n1|>|n2|, and |n1|>|n3|, and the hybrid objective lens converges a n1-th, n2-th and n3-th order diffracted ray of the first, second and third light flux onto an information recording plane of each of the first, second ant third optical information recording medium respectively so as to form an appropriate wavefront within respective prescribed necessary image side numerical apertures.

摘要翻译： 混合物镜具有在其至少一个光学表面上由多个同轴环形区域构成的折射透镜和衍射光学元件。 当n1，n2和n3分别是当各个光束入射到第一，第二和第三光束时具有波长λ1，λ2和λ3的每个的第一，第二和第三光束的衍射光中具有最大光量的衍射光线的衍射级数 衍射结构分别满足下列公式：| n1 |> | n2 |和| n1 |> | n3 |，并且混合物镜会聚第n1，第n2和第n3阶衍射光线 第一，第二和第三光束分别到达第一，第二蚂蚁第三光学信息记录介质的信息记录平面，以便在各个规定的必要图像侧数值孔内形成适当的波前。

公开(公告)号：US20110002123A1

公开(公告)日：2011-01-06

申请号：US12593138

申请日：2008-02-28

申请人： Yuichi Atarashi ,  Fumio Nagai

发明人： Yuichi Atarashi ,  Fumio Nagai

IPC分类号： F21V19/02 ,  F21V11/00 ,  F21V7/07

CPC分类号： G02B6/42 ,  G02B6/4214 ,  H01S5/005 ,  H01S5/0092 ,  H01S5/0228

摘要： A light source unit relating to the present invention includes a light source element; an optical-waveguide-formed element in which an optical waveguide is formed; a prism for turning back a light flux emitted from the light source and guiding the light flux toward an incident end of the optical waveguide; and a coupling optical system formed on the prism or provided as a separated body from the prism, for coupling the light flux emitted from the light source onto the optical waveguide.

摘要翻译： 涉及本发明的光源单元包括光源元件; 形成光波导的光波导形成元件; 用于回转从光源发射的光束并将光束引导到光波导的入射端的棱镜; 以及耦合光学系统，其形成在所述棱镜上，或者设置为与所述棱镜分离的主体，用于将从所述光源发射的光束耦合到所述光波导上。

公开(公告)号：US07688701B2

公开(公告)日：2010-03-30

申请号：US11453994

申请日：2006-06-16

申请人： Kazutaka Noguchi ,  Yuichi Atarashi

发明人： Kazutaka Noguchi ,  Yuichi Atarashi

IPC分类号： G11B7/00

CPC分类号： G11B7/1275 ,  G02B27/0037 ,  G02B27/4238 ,  G02B27/4294 ,  G11B7/1367 ,  G11B7/1374 ,  G11B2007/0006 ,  G11B2007/13727

摘要： An objective optical system according to the present invention is provided for use in an optical pickup apparatus for recording or reproducing information on an information recording surface of a first optical information recording medium using a first light flux emitted from a first light source. The objective optical system is provided with: a first lens with a positive refractive power including plastic; a second lens with a positive refractive power including plastic; and a first phase structure. A wavefront aberration change amount of the objective optical system when a wavelength of the first light flux changes, and a wavefront aberration change amount of the objective optical system when an ambient temperature of the objective optical system satisfy the predefined condition.

摘要翻译： 根据本发明的物镜光学系统被提供用于使用从第一光源发射的第一光束在第一光学信息记录介质的信息记录表面上记录或再现信息的光学拾取装置。 物镜光学系统设置有：具有正折射力的第一透镜，包括塑料; 具有包括塑料在内的正屈光力的第二透镜; 和第一相结构。 当物镜光学系统的环境温度满足预定条件时，物镜光学系统的第一光束的波长变化时的波前像差变化量和物镜光学系统的波前像差变化量。

公开(公告)号：US20090290474A1

公开(公告)日：2009-11-26

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： G11B7/135

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：US20090268586A1

公开(公告)日：2009-10-29

申请号：US11992994

申请日：2006-10-04

申请人： Kazuhiro Wada ,  Hiroyuki Hattori ,  Yuichi Atarashi

发明人： Kazuhiro Wada ,  Hiroyuki Hattori ,  Yuichi Atarashi

IPC分类号： G11B7/135 ,  G02B7/02

CPC分类号： G11B7/1374 ,  G11B7/22 ,  G11B2007/0006

摘要： An objective lens unit for use in an optical pickup device, includes: a first lens section; a first flange section positioned peripheral of the first lens section; and a support section which supports a second objective lens having a second lens section provided in parallel to the first lens section with an optical axis different from that of the first lens section, wherein the first lens section, the first flange section and the support section are integrally formed.

摘要翻译： 一种用于光拾取装置的物镜单元，包括：第一透镜部; 位于所述第一透镜部周边的第一凸缘部; 以及支撑部，其支撑第二物镜，所述第二物镜具有与所述第一透镜部分不同的光轴平行设置的第二透镜部，其中所述第一透镜部，所述第一凸缘部和所述支撑部 一体形成。