公开(公告)号：US20090115082A1

公开(公告)日：2009-05-07

申请号：US12286403

申请日：2008-09-30

申请人： Shigeru Hosoe ,  Kiyoshi Yamashita ,  Nobuyoshi Mori ,  Yuichi Atarashi

发明人： Shigeru Hosoe ,  Kiyoshi Yamashita ,  Nobuyoshi Mori ,  Yuichi Atarashi

IPC分类号： B29D11/00

CPC分类号： G02B3/02

摘要： A method of producing a lens that includes shifting a first die relative to a second die, and pressing an optical material shaped in a preliminary form between the first die and the second die so as to form a lens having a configuration corresponding to a hollow portion formed by the first die and the second die while shifting the first die relative to the second die. The produced lens includes an effective optical surface configured to converge a light flux. The effective optical surface includes a light entrance side, a light exit side, and an optical axis. The effective optical surface is a convex surface shaped such that when a maximum normal line angle is defined as an angle formed between the optical axis and a normal line at the outermost circumference of the effective optical surface, the maximum normal angle is 60° to 90°.

摘要翻译： 一种制造透镜的方法，包括相对于第二模具移动第一模具，并且将在初级模具中形成的光学材料压在第一模具和第二模具之间，以形成具有对应于中空部分的构造的透镜 由第一模具和第二模具形成，同时相对于第二模具移动第一模具。 所生产的透镜包括被配置为会聚光束的有效光学表面。 有效的光学表面包括光入射侧，光出射侧和光轴。 有效的光学面是凸形的表面，使得当最大法线范围被定义为在有效光学表面的最外圆周处的光轴与法线之间形成的角度时，最大法线角度为60°至90° °。

公开(公告)号：US20080181085A1

公开(公告)日：2008-07-31

申请号：US12052359

申请日：2008-03-20

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n 1，n 2和n 3各自是当各个光束来到时具有波长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 要分别入射到衍射结构中，满足下列公式：<？in-line-formula description =“In-line formula”end =“lead”？> | n 1 |> | n 2 |和| n 1> | n 3 |和<？in-line-formula description =“In-line Formulas”end =“tail”？>混合物镜会聚第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面上分别形成第一，第二和第三光束，以便在相应的规定的必需像侧数值孔内形成适当的波前。

公开(公告)号：US20070258144A1

公开(公告)日：2007-11-08

申请号：US11679204

申请日：2007-02-27

申请人： Tohru Kimura ,  Katsuya Sakamoto ,  Yuichi Atarashi

发明人： Tohru Kimura ,  Katsuya Sakamoto ,  Yuichi Atarashi

IPC分类号： G02B27/44

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n 1，n 2和n 3各自是当各个光束来到时具有波长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 要分别入射到衍射结构中，满足下列公式：<？in-line-formula description =“In-line formula”end =“lead”？> | n 1 |> | n 2 |和| n 1 |> | n 3 |和<？in-line-formula description =“In-line Formulas”end =“tail”？>混合物镜会聚第1，第2和第3 分别将第一，第二和第三光束的次级衍射光线分别放置到第一，第二蚂蚁第三光学信息记录介质中的每一个的信息记录平面上，以便在各个规定的必要图像侧数值孔径内形成适当的波前。

公开(公告)号：US07289415B2

公开(公告)日：2007-10-30

申请号：US10976844

申请日：2004-11-01

申请人： Kiyono Ikenaka ,  Shinichiro Saito ,  Yuichi Atarashi

发明人： Kiyono Ikenaka ,  Shinichiro Saito ,  Yuichi Atarashi

IPC分类号： G11B7/00

CPC分类号： G11B7/1376 ,  G11B7/1275 ,  G11B7/1353 ,  G11B7/1374 ,  G11B7/139 ,  G11B7/13922 ,  G11B2007/0006

摘要： An optical pickup apparatus comprising: a first light source emitting first light flux having wavelength λ1 (380 nm≦λ1≦450 nm); a second light source emitting second light flux having wavelength λ2 (600 nm≦λ2≦700 nm); a third light source emitting third light flux having wavelength λ3 (750 nm≦λ3≦800 nm); a first divergent angle-converting element through which the first light flux passes; a second divergent angle-converting element through which the second light flux and the third light flux pass; and an objective optical element through which the first, second, and third light fluxes pass. Optical magnification m2 of the second divergent angle-converting element for the second light flux and optical magnification m3 of the second divergent angle-converting element for the third light flux are different from each other.

摘要翻译： 一种光学拾取装置，包括：第一光源，发射波长为λ1（380nm <λ1 <= 450nm）的第一光束; 发射波长为λ2（600nm <=λ2 <= 700nm）的第二光束的第二光源; 发射波长为λ3（750nm <λ3 = 800nm）的第三光束的第三光源; 第一发光角转换元件，第一光束通过该第一发散角转换元件; 第二发光角转换元件，第二光束和第三光束通过该第二发散角转换元件; 以及第一，第二和第三光束通过的物镜光学元件。 用于第二光束的第二发散角转换元件的光学倍率m 2和用于第三光束的第二发散角转换元件的光学倍率m 3彼此不同。

公开(公告)号：US07236445B2

公开(公告)日：2007-06-26

申请号：US10736637

申请日：2003-12-17

申请人： Hiroyuki Hattori ,  Yuichi Atarashi

发明人： Hiroyuki Hattori ,  Yuichi Atarashi

IPC分类号： G11B7/00

CPC分类号： G11B7/1378 ,  G11B7/1374 ,  G11B7/13922 ,  G11B7/22

摘要： An objective lens used in an optical head having a convex lens and a chromatic aberration correction optical element wherein there is provided a positioning means that positions the center of gravity of the objective lens used in an optical head substantially on a straight line connecting supporting points for the objective lens used in an optical head.

摘要翻译： 在具有凸透镜和色像差校正光学元件的光学头中使用的物镜，其中设置有定位装置，其将用于光学头的物镜的重心基本上定位在连接支撑点的直线上， 在光学头中使用的物镜。

公开(公告)号：US20070091411A1

公开(公告)日：2007-04-26

申请号：US11545470

申请日：2006-10-11

申请人： Nobuyoshi Mori ,  Katsuya Yagi ,  Yuichi Atarashi ,  Fumio Nagai

发明人： Nobuyoshi Mori ,  Katsuya Yagi ,  Yuichi Atarashi ,  Fumio Nagai

IPC分类号： G02B26/00 ,  G02F1/01 ,  G02F1/00

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：US20070053255A1

公开(公告)日：2007-03-08

申请号：US11514166

申请日：2006-09-01

申请人： Yuichi Atarashi ,  Takeshi Kojima ,  Kazutaka Noguchi

发明人： Yuichi Atarashi ,  Takeshi Kojima ,  Kazutaka Noguchi

IPC分类号： G11B7/00

CPC分类号： G11B7/1275 ,  G11B7/1353 ,  G11B7/1374 ,  G11B7/1378 ,  G11B7/13922 ,  G11B7/13925 ,  G11B2007/0006 ,  G11B2007/0013 ,  G11B2007/13727

摘要： An optical pickup apparatus having first and second light sources emitting first and second light fluxes having wavelength of λ1 and λ2, respectively, an light-converging optical system including first and second objective optical elements, and a lens holder to hold the first and second objective optical elements. When the optical pickup apparatus converges the first or the second light flux onto first or second information recording surface of first or second information recording medium through one protective substrate, which has a thickness of t1 or t2 and is provided on the first or second information recording surface, with utilizing the first or second objective optical element for conducting information recording and/or information reproducing of the first or second information recording medium, a variation of each of a coma aberration and an astigmatism is not more than 0.02 λ1 rms or 0.02 λ2 rms, respectively.

摘要翻译： 一种具有第一和第二光源的光学拾取装置，分别发射波长为λ1和λ2的第一和第二光束，包括第一和第二物镜光学元件的聚光光学系统和用于保持第一和第二物镜的透镜保持器 光学元件。 当光学拾取装置通过一个具有厚度t 1或t 2并设置在第一或第二信息记录介质的第一或第二信息记录介质的第一或第二信息记录介质上的第一或第二信息记录表面 信息记录表面，利用用于进行第一或第二信息记录介质的信息记录和/或信息再现的第一或第二物镜光学元件，彗差和像散中的每一个的变化不大于0.02λ1rms或 0.02λ2rms。

公开(公告)号：US20060285472A1

公开(公告)日：2006-12-21

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： G11B7/135

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：US20060109771A1

公开(公告)日：2006-05-25

申请号：US11273087

申请日：2005-11-15

申请人： Yuichi Atarashi ,  Mika Wachi ,  Junji Hashimura

发明人： Yuichi Atarashi ,  Mika Wachi ,  Junji Hashimura

IPC分类号： G11B7/00

CPC分类号： G11B7/1395 ,  G11B7/127 ,  G11B7/1376 ,  G11B2007/0006

摘要： An optical pickup device, including: first, second and third light sources performing recording and/or reproduction of information for information recording surfaces of first, second and third optical information recording medium each having a protective substrate with a thickness t1, t2 and t3, respectively; a first objective optical system for guiding at least the first beam to the information recording surface of first optical information recording medium; second objective optical system provided separately from the first objective optical system, for guiding at least the third beam to information recording surface of the third optical information recording medium; and at least one light receiving element for detecting light reflected on the information recording surfaces of the first to third optical information recording media.

摘要翻译： 一种光学拾取装置，包括：第一，第二和第三光源，用于执行记录和/或再现用于信息记录表面的信息，所述信息记录表面具有第一，第二和第三光学信息记录介质，每个具有厚度为t 1，t 2的保护基板， t 3; 用于将至少第一光束引导到第一光学信息记录介质的信息记录表面的第一物镜光学系统; 与第一物镜光学系统分开设置的用于将至少第三光束引导到第三光学信息记录介质的信息记录表面的第二物镜光学系统; 以及用于检测在第一至第三光学信息记录介质的信息记录表面上反射的光的至少一个光接收元件。

公开(公告)号：US20050180294A1

公开(公告)日：2005-08-18

申请号：US11049948

申请日：2005-02-04

申请人： Tohru Kimura ,  Nobuyoshi Mori ,  Junji Hashimura ,  Yuichi Atarashi ,  Toshiyuki Kojima ,  Kiyono Ikenaka ,  Mitsuru Mimori

发明人： Tohru Kimura ,  Nobuyoshi Mori ,  Junji Hashimura ,  Yuichi Atarashi ,  Toshiyuki Kojima ,  Kiyono Ikenaka ,  Mitsuru Mimori

IPC分类号： G02B13/00 ,  G11B7/00 ,  G11B7/125 ,  G11B7/135

CPC分类号： G11B7/13925 ,  G11B7/1275 ,  G11B7/1356 ,  G11B7/1367 ,  G11B7/1369 ,  G11B7/1374 ,  G11B7/1378 ,  G11B7/13922 ,  G11B11/10532 ,  G11B2007/0006

摘要： An optical pickup apparatus comprising: a first, second and third light sources emitting first, second and third light flux having first wavelength of λ1, second wavelength of λ2 and third wavelength of λ3, respectively; and an objective optical system converging the first, second and third light fluxes onto an information recording surface of a first, second and third optical disk, respectively, wherein the objective optical system has a phase structure, and wherein when a first, second and third magnifications of the objective optical system for conducting reproducing information from and/or recording information on the first, second and third optical disks are represented by M1, M2, and M3, respectively, |dM1−M2|, which represents an absolute value of a difference between M1 and M2, satisfies the following relation. |dM1−M2|

摘要翻译： 一种光学拾取装置，包括：第一，第二和第三光源，分别发射具有λ1的第一波长，λ2的第二波长和λ3的第三波长的第一，第二和第三光束; 以及物镜光学系统，其将所述第一，第二和第三光束分别聚焦到第一，第二和第三光盘的信息记录表面上，其中所述物镜光学系统具有相位结构，并且其中当第一，第二和第三光束 用于从第一，第二和第三光盘进行再现信息和/或记录信息的物镜光学系统的放大率分别由M1，M2和M3分别表示为M1，M2和M3。 ，其表示M1和M2之间的差的绝对值，满足以下关系。 <？in-line-formula description =“In-line Formulas”end =“lead”？> | d M1-M2 <0.02 <？in-line-formula description =“In-line 公式“end =”tail“？>