公开(公告)号：US07656774B2

公开(公告)日：2010-02-02

申请号：US11547686

申请日：2005-03-24

Applicant: Katsuya Sakamoto

Inventor： Katsuya Sakamoto

IPC: G11B7/00

CPC classification number: G11B7/1374 ,  G02B9/12 ,  G02B13/24 ,  G11B7/13922 ,  G11B2007/13727

Abstract: An objective lens for at least one of recording and reproducing for an optical information recording medium includes in the order from a light source side: a first lens group having negative refracting power, which is in a meniscus shape having a concave surface facing the light source side; a second lens group having positive refracting power; and a third lens group having positive refracting power, which is in a meniscus shape having a concave surface facing an image side.

Abstract translation: 用于光学信息记录介质的记录和再现中的至少一个的物镜包括从光源侧起的顺序：具有负折射率的第一透镜组，其具有面向光源的凹面的弯液面 侧; 具有正折射力的第二透镜组; 以及具有正折射率的第三透镜组，其具有面向图像侧的凹面的弯液面形状。

公开(公告)号：US07463568B2

公开(公告)日：2008-12-09

申请号：US11717627

申请日：2007-03-14

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

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

IPC: G11B7/00

CPC classification number: G11B7/1353 ,  G11B7/1275 ,  G11B7/1367 ,  G11B7/1374 ,  G11B7/13922 ,  G11B2007/0006

Abstract: 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 |

Abstract translation: 光拾取装置的物镜光学元件对波长λ1：-1/7 <= m1 <= - 1/25和| m1 | <| M1的光束满足下列公式的放大率m1，其中M1为 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放大率。 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：US20080181085A1

公开(公告)日：2008-07-31

申请号：US12052359

申请日：2008-03-20

Applicant: Tohru Kimura ,  Katsuya Sakamoto ,  Yuichi Atarashi

Inventor： Tohru Kimura ,  Katsuya Sakamoto ,  Yuichi Atarashi

IPC: G11B7/135

CPC classification number: G11B7/1374 ,  G11B7/1275 ,  G11B7/1353 ,  G11B7/139 ,  G11B7/13925 ,  G11B2007/0006 ,  G11B2007/13727

Abstract: 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.

Abstract translation: 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

Applicant: Tohru Kimura ,  Katsuya Sakamoto ,  Yuichi Atarashi

Inventor： Tohru Kimura ,  Katsuya Sakamoto ,  Yuichi Atarashi

IPC: G02B27/44

CPC classification number: G11B7/1374 ,  G11B7/1275 ,  G11B7/1353 ,  G11B7/139 ,  G11B7/13925 ,  G11B2007/0006 ,  G11B2007/13727

Abstract: 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.

Abstract translation: 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：US20070211605A1

公开(公告)日：2007-09-13

申请号：US11547686

申请日：2005-03-24

Applicant: Katsuya Sakamoto

Inventor： Katsuya Sakamoto

IPC: G11B7/00

CPC classification number: G11B7/1374 ,  G02B9/12 ,  G02B13/24 ,  G11B7/13922 ,  G11B2007/13727

Abstract: An objective lens for at least one of recording and reproducing for an optical information recording medium includes in the order from a light source side: a first lens group having negative refracting power, which is in a meniscus shape having a concave surface facing the light source side; a second lens group having positive refracting power; and a third lens group having positive refracting power, which is in a meniscus shape having a concave surface facing an image side.

Abstract translation: 用于光学信息记录介质的记录和再现中的至少一个的物镜包括从光源侧起的顺序：具有负折射率的第一透镜组，其具有面向光源的凹面的弯液面 侧; 具有正折射力的第二透镜组; 以及具有正折射率的第三透镜组，其具有面向图像侧的凹面的弯液面形状。

公开(公告)号：US20060203692A1

公开(公告)日：2006-09-14

申请号：US11366546

申请日：2006-03-03

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

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

IPC: G11B7/00

CPC classification number: G11B7/1367 ,  G11B7/1275 ,  G11B7/1353 ,  G11B7/1374 ,  G11B7/13922 ,  G11B2007/0006

Abstract: 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.

Abstract translation: 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：US20060120251A1

公开(公告)日：2006-06-08

申请号：US10532602

申请日：2004-08-10

Applicant: Katsuya Sakamoto ,  Junji Hashimura

Inventor： Katsuya Sakamoto ,  Junji Hashimura

IPC: G11B7/00

CPC classification number: G11B7/1398 ,  G02B7/028 ,  G02B27/0966 ,  G11B7/1378 ,  G11B7/13922 ,  G11B2007/13727

Abstract: The present invention has a beam shaping element for converting the light source 11 into a light flux whose emitting angle is almost equal and for projecting it, and a generation amount of the astigmatism generated by the temperature change is suppressed by a linear expansion of the beam shaping element.

Abstract translation: 本发明具有用于将光源11转换为发射角几乎相等并用于投射光束的光束成形元件，并且通过光束的线性膨胀来抑制由温度变化产生的像散的产生量 成型元件。

公开(公告)号：US08240119B2

公开(公告)日：2012-08-14

申请号：US12918687

申请日：2009-02-18

Applicant: Yoshihiro Fujimoto ,  Katsuya Sakamoto ,  Tatsushi Fujimori ,  Hajime Izawa ,  Hiroyuki Osawa ,  Takashi Murashima ,  Kikuo Hashimoto

Inventor： Yoshihiro Fujimoto ,  Katsuya Sakamoto ,  Tatsushi Fujimori ,  Hajime Izawa ,  Hiroyuki Osawa ,  Takashi Murashima ,  Kikuo Hashimoto

IPC: D02G3/02

CPC classification number: H01B7/2825 ,  D07B1/025 ,  D07B1/147 ,  D07B1/162 ,  D07B1/165 ,  D07B2205/201 ,  D07B2501/2061 ,  H01B3/305 ,  H01B7/285 ,  Y02A30/14 ,  D07B2801/16 ,  D07B2801/22

Abstract: A high-strength cable having a twisted layer of non-metallic reinforcing elements in outer coatings is disclosed. The reinforcing elements include coating elements, fiber elements of copolyparaphenylene-3,4′-oxydiphenyleneterephthalic amide disposed in the coating elements, and filling materials filled between the fiber elements, respectively. The lateral compression stress of the fiber elements of the copolyparaphenylene-3,4′-oxydiphenyleneterephthalic amide is 75 cN/dtex or more.

Abstract translation: 公开了一种在外涂层中具有非金属增强元件的扭曲层的高强度电缆。 增强元件包括涂覆元件，设置在涂层元件中的共聚对亚苯基-3,4'-氧二苯基对苯二甲酰胺的纤维元素和分别填充在纤维元件之间的填充材料。 共聚对亚苯基-3,4'-氧联二苯基对苯二甲酰胺的纤维元素的侧向压缩应力为75cN / dtex以上。

公开(公告)号：US20080192612A1

公开(公告)日：2008-08-14

申请号：US12000783

申请日：2007-12-17

Applicant: Shinichiro Saito ,  Katsuya Sakamoto

Inventor： Shinichiro Saito ,  Katsuya Sakamoto

IPC: G11B7/135 ,  G11B7/00

CPC classification number: G11B7/1353 ,  G11B7/1374 ,  G11B7/13922 ,  G11B2007/0006

Abstract: An objective lens of an optical pickup apparatus converges a divergent light flux onto an information recording surface. The following conditional formula is satisfied: |δSA1/δU|·|δU|+|δSA2/δT|·|δT|≦0.07λrms where λ represents a wavelength of a light source, δSA1/δU represents a change of a spherical aberration for an object-to-image distance change δU (|δU|≦0.5 mm) and δSA2/δT represents a change of spherical aberration for a temperature change δT (|δT|≦30° C.), the object-to-image distance is a distance between the light source (a light emitting point) and the information recording surface.

Abstract translation: 光学拾取装置的物镜将发散光束会聚到信息记录表面上。 满足以下条件公式：<？in-line-formula description =“In-line Formulas”end =“lead”？> | deltaSA /deltaU|.|deltaU|+|deltaSA < ＆lt;＆gt;＆lt;＆gt;＆lt;＆lt;＆gt;＆lt;＆gt;＆lt;＆gt;＆lt; deltaSA＆lt; 1＆gt; / deltaU表示对象到图像间距变化ΔU（| deltaU |≤0.5mm）和deltaSA2 / deltaT表示的球面像差的变化 对于温度变化ΔT（| deltaT | <= 30℃）的球面像差的变化，对象间距离是光源（发光点）和信息记录面之间的距离。

公开(公告)号：US20070019518A1

公开(公告)日：2007-01-25

申请号：US11487518

申请日：2006-07-17

Applicant: Mika Wachi ,  Kiyono Ikenaka ,  Katsuya Sakamoto

Inventor： Mika Wachi ,  Kiyono Ikenaka ,  Katsuya Sakamoto

IPC: G11B7/00

CPC classification number: G11B7/1275 ,  G11B7/1376 ,  G11B7/13922 ,  G11B2007/0006

Abstract: An optical pickup apparatus which conducts reproducing and/or recording information for a first optical information recording medium by using a light flux having a wavelength λ1 (350≦λ1 (nm)≦480) and a second optical information recording medium. The optical pickup apparatus comprises an output angle conversion element which is a fixedly arranged single lens which can convert an output angle of the first light flux and the second light flux. The optical detector equipped in the optical pickup apparatus can receive both of the first light flux and the second light flux. And, both optical surfaces of the output angle conversion element are refractive surfaces.

Abstract translation: 一种光学拾取装置，其通过使用具有波长λ1（350≤λ（nm）= 480）的光束和第二光学信息记录介质来传送用于第一光学信息记录介质的信息的再现和/或记录。 光拾取装置包括输出角转换元件，其是可以转换第一光通量和第二光通量的输出角度的固定布置的单透镜。 配备在光学拾取装置中的光学检测器可以接收第一光通量和第二光束两者。 并且，输出角转换元件的两个光学表面都是折射表面。