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。

公开(公告)号：US20090190450A1

公开(公告)日：2009-07-30

申请号：US12417964

申请日：2009-04-03

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，该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：US07511880B2

公开(公告)日：2009-03-31

申请号：US11545470

申请日：2006-10-11

申请人： Nobuyoshi Mori ,  Katsuya Yagi ,  Yuichi Atarashi ,  Fumio Nagai ,  David A. Loeber ,  Jacques Gollier ,  E. Alan Dowdell

发明人： Nobuyoshi Mori ,  Katsuya Yagi ,  Yuichi Atarashi ,  Fumio Nagai ,  David A. Loeber ,  Jacques Gollier ,  E. Alan Dowdell

IPC分类号： G02F1/35 ,  G02F2/02 ,  G02F1/01

CPC分类号： G02F1/37 ,  G02B6/4225 ,  G02B7/005 ,  G02B7/02 ,  G02B7/1805 ,  G02F2001/3503 ,  G02F2001/3505 ,  H01S5/0683 ,  H02N2/025 ,  H02N2/028

摘要： The present invention provides a semiconductor light source module including: a semiconductor light source for emitting a light flux with a predefined wavelength; a SHG element for converting an incident light flux entering onto an incident end surface of the SHG element into an outgoing light flux having a different wavelength from the incident light flux; a light converging optical system for converging a light flux emitted from the semiconductor light source onto the incident end surface of the SHG element; a light receiving element for receiving a part of a light flux emitted from the SHG element; and a drive device for driving an optical element in the light converging optical system based on a light flux received by the light receiving element.

摘要翻译： 本发明提供一种半导体光源模块，包括：用于发射具有预定波长的光通量的半导体光源; 用于将入射到所述SHG元件的入射端面的入射光束转换成具有与入射光束不同的波长的出射光束的SHG元件; 聚光光学系统，用于将从半导体光源发射的光束会聚到SHG元件的入射端面上; 用于接收从SHG元件发射的光束的一部分的光接收元件; 以及驱动装置，用于基于由光接收元件接收的光通量来驱动聚光光学系统中的光学元件。

公开(公告)号：US20090080321A1

公开(公告)日：2009-03-26

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： G11B7/135

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的第一，第二和第三光束中的每一个的衍射光线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：<？in-line-formula description =“In-line formula”end =“lead”？> | n1 |> | n2 |和| n1 |> | n3 |和 混合物镜收敛第一，第二和第三光的第n1，第n2和第n3阶衍射光线， 分别在第一，第二蚂蚁第三光学信息记录介质的信息记录平面上形成适当的波前，以在相应的规定的必要的图像侧数值孔内形成适当的波前。

公开(公告)号：US07397616B2

公开(公告)日：2008-07-08

申请号：US11401333

申请日：2006-04-11

申请人： Fumio Nagai ,  Nobuyoshi Mori ,  Yuichi Atarashi

发明人： Fumio Nagai ,  Nobuyoshi Mori ,  Yuichi Atarashi

IPC分类号： G02B3/08 ,  G02B6/34 ,  G02B13/18

CPC分类号： G02B6/4246 ,  G02B6/29308 ,  G02B6/29311 ,  G02B6/4206

摘要： An optical communication module includes a first light-receiving element with a receiving surface in which a light flux with a wavelength λ1 emitted from an end surface of an optical fiber enters; a light-emitting element for emitting a light flux with a wavelength λ2; and a first optical element arranged between the first light-receiving element and the light-emitting element, and the end surface of the optical fiber. The first optical element includes a first optical surface with a positive refractive power and a second optical surface having a diffractive structure. One of the first optical surface and the second optical surface is divided into at least a first optical functional surface and a second optical functional surface through a step difference.

摘要翻译： 光通信模块包括具有接收表面的第一光接收元件，其中从光纤的端表面发射的具有波长λ1的光束进入; 用于发射波长λ2的光通量的发光元件; 以及布置在第一光接收元件和发光元件之间的第一光学元件以及光纤的端面。 第一光学元件包括具有正屈光力的第一光学表面和具有衍射结构的第二光学表面。 第一光学表面和第二光学表面中的一个通过台阶差分成至少第一光学功能表面和第二光学功能表面。

公开(公告)号：US07352518B2

公开(公告)日：2008-04-01

申请号：US11453896

申请日：2006-06-16

申请人： Kazutaka Noguchi ,  Yuichi Atarashi

发明人： Kazutaka Noguchi ,  Yuichi Atarashi

IPC分类号： G02B13/00 ,  G11B7/00

CPC分类号： G11B7/1374 ,  G11B7/1353 ,  G11B7/13922 ,  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, and the objective system includes: a first lens with a positive reflective power including plastic; and a second lens with a positive refractive power including plastic. Opposite optical surfaces of the first lens are convex surfaces, and a refractive power of the first lens and a power of a whole system 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，并且该目标 系统包括：具有包括塑料在内的正反射功率的第一透镜; 以及具有包括塑料的正屈光力的第二透镜。 第一透镜的相对的光学面是凸面，第一透镜的屈光度和物镜光学系统的整个系统的光焦度满足预定条件。

公开(公告)号：US07317677B2

公开(公告)日：2008-01-08

申请号：US10926309

申请日：2004-08-26

申请人： Yuichi Atarashi

发明人： Yuichi Atarashi

IPC分类号： G11B7/00

CPC分类号： G11B7/127 ,  G11B7/1372

摘要： An semiconductor laser light source apparatus includes: a semiconductor laser oscillator for emitting a laser beam; and a lens for transmitting the laser beam emitted by the semiconductor laser oscillator, wherein the lens comprises a light transparent material in which microparticles are dispersed into a plastic resin and have a size of the transmitting laser beam wavelength or below.

摘要翻译： 一种半导体激光光源装置，包括：发射激光束的半导体激光振荡器; 以及用于透射由半导体激光振荡器发射的激光束的透镜，其中所述透镜包括其中微粒分散到塑料树脂中并且具有发射激光束波长或更小的尺寸的透光材料。

公开(公告)号：US20070159952A1

公开(公告)日：2007-07-12

申请号：US11717627

申请日：2007-03-14

申请人： Mitsuru Mimori ,  Kohei Ota ,  Shinichiro Saito ,  Yuichi Atarashi ,  Katsuya Sakamoto ,  Hidekazu Totsuka ,  Kiyono Ikenaka

发明人： Mitsuru Mimori ,  Kohei Ota ,  Shinichiro Saito ,  Yuichi Atarashi ,  Katsuya Sakamoto ,  Hidekazu Totsuka ,  Kiyono Ikenaka

IPC分类号： G11B7/00

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

摘要： An objective optical element of an optical pickup apparatus has a magnification m1 satisfying the following formula for a light flux of the wavelength λ1:−1/7≦m1≦−1/25 and |m1 |

摘要翻译： 光学拾取装置的物镜光学元件具有对于波长λ1：-1/7 <= m 1 <= - 1/25和| m 1 | <| M 1的光束满足下式的放大率m1 其中M 1是从第一光源到波长λ1的光通量的第一光学信息记录介质的光学系统倍率。 物镜光学元件包括公共区域和专用区域。 专有区域包括具有抑制由于大气温度升高引起的球面像差增加的功能的专属衍射结构。 波长λ2的光通量。 已经通过专用衍射结构的光轴与形成在第二光学信息记录介质的信息记录平面上的会聚光点的位置不同的位置相交。

公开(公告)号：US07206276B2

公开(公告)日：2007-04-17

申请号：US10266114

申请日：2002-10-08

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分别是当各光束入射时具有波长λ1，λ2和λ3的第一，第二和第三光束中的每一个的衍射光线中具有最大光量的衍射光线的衍射级数 分别进入衍射结构，满足下列公式

公开(公告)号：US20070067788A1

公开(公告)日：2007-03-22

申请号：US11507002

申请日：2006-08-21

申请人： Shogo Yamamoto ,  Yuichi Atarashi ,  Yasutaka Nakagaki

发明人： Shogo Yamamoto ,  Yuichi Atarashi ,  Yasutaka Nakagaki

IPC分类号： G11B7/00

CPC分类号： G11B7/0935 ,  G11B7/1353 ,  G11B7/1374 ,  G11B2007/0006

摘要： An objective lens unit, includes: an objective lens for irradiating and converging laser light on an optical disc as an a light information recording medium; and a lens frame for retaining the objective lens, wherein the lens frame is structured so that at least a portion closer to a rotation center of the optical disc is offset to an inner side of the lens frame with regards to a virtual edge section closer to the rotation center of the optical disc, wherein the virtual edge section is in a nodal line of a virtual plane that includes an end face which is closest to the optical disc in the lens frame and the objective lens, and that is perpendicular to an optical axis and a virtual rotation curved surface that is obtained when a virtual straight line passing a portion which is farthest from the optical axis in the lens frame and the objective lens, in parallel with the optical axis, is rotated around the optical axis as a center axis.

摘要翻译： 一种物镜单元，包括：用于将激光照射并会聚在作为光信息记录介质的光盘上的物镜; 以及用于保持物镜的透镜框架，其中，所述透镜框架被构造成使得靠近所述光盘的旋转中心的至少一部分相对于靠近所述透镜框架的虚拟边缘部分偏移到所述透镜框架的内侧 光盘的旋转中心，其中虚拟边缘部分在虚拟平面的节点线中，虚拟平面包括最靠近透镜框架和物镜中的光盘的端面，并且垂直于光学 并且当通过透镜框中的光轴最远的部分的虚拟直线和与光轴平行的物镜时，虚拟直线以围绕光轴为中心旋转而获得的虚拟旋转曲面 轴。