公开(公告)号：US09188842B2

公开(公告)日：2015-11-17

申请号：US14004045

申请日：2012-02-15

申请人： Kikuo Iwasaka ,  Yuichi Atarashi

发明人： Kikuo Iwasaka ,  Yuichi Atarashi

IPC分类号： G02B7/02 ,  B23P19/10 ,  G03B17/02 ,  B25B11/00 ,  B23P21/00 ,  G02B3/04 ,  A61B1/06

CPC分类号： G03B17/02 ,  A61B1/0676 ,  B23P19/10 ,  B23P21/004 ,  B23P21/006 ,  B25B11/005 ,  G02B3/04 ,  G02B7/02 ,  G02B7/027 ,  Y10T29/49826

摘要： A manufacturing method of a lens barrel is disclosed. According to one implementation, the manufacturing method includes the following steps. A first lens holding section protrusion step inserts a first lens holding section from one end of a barrel frame to a hollow section to protrude from the other end. A second lens holding section suction step sucks a convex surface section. A first lens holding section contact step brings the planar surface section into contact with the first lens holding section. A lens holding switching step releases suction of the convex surface section, and the planar surface section is held by the first lens holding section. A barrel frame contact step moves the first lens holding section or the lens barrel so that a surrounding edge section is brought into contact with a lens receiving section.

摘要翻译： 公开了一种镜筒的制造方法。 根据一个实施方式，制造方法包括以下步骤。 第一透镜保持部突出台阶将第一透镜保持部从筒框架的一端插入中空部，从另一端突出。 第二透镜保持部抽吸工序吸收凸面部。 第一透镜保持部接触台阶使平面部与第一透镜保持部接触。 透镜保持切换步骤释放凸表面部分的抽吸，并且平面表面部分被第一透镜保持部分保持。 桶框架接触步骤使第一透镜保持部或镜筒移动，使得周围边缘部与透镜接收部接触。

公开(公告)号：US08121011B2

公开(公告)日：2012-02-21

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： G11B7/00

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，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：US07855945B2

公开(公告)日：2010-12-21

申请号：US11490808

申请日：2006-07-21

申请人： Kiyono Ikenaka ,  Yuichi Atarashi

发明人： Kiyono Ikenaka ,  Yuichi Atarashi

IPC分类号： G11B7/00

CPC分类号： G11B7/1392 ,  G11B7/1275 ,  G11B7/1353 ,  G11B7/1374 ,  G11B2007/0006

摘要： An optical pickup apparatus comprises first, second and third light sources to emit light fluxes of wavelength λ1, λ2 and λ3 for conducting recording and/or reproducing information for first, second and third optical information recording mediums having respective protective substrates of thickness t1, t2 and t3 and a diffractive optical element located on a common optical path for the first, second and third light sources. A converged-light spot is formed on the first optical information recording medium with m-th order diffracted-light ray of the wavelength λ1, on the second optical information recording medium with n-th order diffracted-light ray of the wavelength λ2, and on the third optical information recording medium with k-th order diffracted-light ray of the wavelength λ3 generated by the diffractive optical element respectively, wherein one of m, n and k is different from one of other two numbers.

摘要翻译： 光拾取装置包括第一，第二和第三光源，以发射波长λ1，λ2和λ3的光束，用于对具有厚度为t1，t2的各个保护基板的第一，第二和第三光学信息记录介质进行记录和/或再现信息 和t3以及位于第一，第二和第三光源的公共光路上的衍射光学元件。 在具有波长λ1的n级衍射光的第二光学信息记录介质上，在具有波长λ1的m级衍射光的第一光学信息记录介质上形成会聚光点，以及 在由衍射光学元件分别产生的波长λ3的k级衍射光的第三光学信息记录介质上，其中m，n和k之一不同于其它两个数字之一。

公开(公告)号：US07821904B2

公开(公告)日：2010-10-26

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：US07719948B2

公开(公告)日：2010-05-18

申请号：US11211747

申请日：2005-08-26

申请人： Tohru Kimura ,  Takemi Miyazaki ,  Yuichi Atarashi

发明人： Tohru Kimura ,  Takemi Miyazaki ,  Yuichi Atarashi

IPC分类号： G11B7/135

CPC分类号： G11B7/22 ,  G11B7/1353 ,  G11B7/13922 ,  G11B2007/0006

摘要： The lens unit for the optical pick-up apparatus has: the objective lens by which the projecting light from the light source is condensed on the information recording surface of the optical information recording medium; the phase control element which is arranged on the light source side to the objective lens, and which controls the phase of the projecting light from the light source; and the supporting member holding the objective lens and the phase control element; and the phase control element is held under the condition that its optical axis is inclined by a predetermined angle to the optical axis of the objective lens, and the intersection at which the optical axis of the phase control element crosses the optical surface having the phase structure is arranged on the optical path passing through the central point which passes the optical axis of the objective lens.

摘要翻译： 用于光学拾取装置的透镜单元具有：将来自光源的投影光聚焦在光学信息记录介质的信息记录表面上的物镜; 所述相位控制元件布置在所述物镜的光源侧，并且控制来自所述光源的所述投射光的相位; 以及保持物镜和相位控制元件的支撑构件; 并且相位控制元件被保持在其光轴相对于物镜的光轴倾斜预定角度的条件下，并且相位控制元件的光轴与具有相位结构的光学表面相交的交点 被布置在通过穿过物镜的光轴的中心点的光路上。

公开(公告)号：US20090262635A1

公开(公告)日：2009-10-22

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： G11B7/135 ,  G02B3/00

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：US07586827B2

公开(公告)日：2009-09-08

申请号：US10972970

申请日：2004-10-25

申请人： Takuji Hatano ,  Katsuya Yagi ,  Yuichi Atarashi ,  Yuichiro Ori

发明人： Takuji Hatano ,  Katsuya Yagi ,  Yuichi Atarashi ,  Yuichiro Ori

IPC分类号： G11B7/12

CPC分类号： G11B7/1395 ,  G11B7/1369 ,  G11B7/13925 ,  G11B7/1398 ,  G11B2007/0006 ,  G11B2007/13727

摘要： An optical pickup apparatus has a semiconductor laser source which emits a laser beam in a wavelength band of 405 nm having an elliptic light intensity distribution; a beam shaping element which shapes the light intensity distribution of the laser beam; a polarizing beam splitter having a polarized light separation film in contact with the air and reflecting the laser beam shaped by the beam shaping element on the polarized light separation film; and an objective lens which focuses the laser beam reflected on the polarized light separation film onto an optical information recording medium.

摘要翻译： 光拾取装置具有发射具有椭圆光强度分布的405nm波长带的激光束的半导体激光源; 光束成形元件，其对激光束的光强度分布进行整形; 偏振分束器，具有与空气接触的偏振光分离膜，并将由光束成形元件成形的激光束反射在偏振光分离膜上; 以及将反射在偏振光分离膜上的激光束聚焦到光学信息记录介质上的物镜。

公开(公告)号：US20090196147A1

公开(公告)日：2009-08-06

申请号：US11663299

申请日：2006-11-06

申请人： Yuichi Atarashi ,  Kohei Ota ,  Junji Hashimura ,  Kiyono Ikenaka

发明人： Yuichi Atarashi ,  Kohei Ota ,  Junji Hashimura ,  Kiyono Ikenaka

IPC分类号： G11B7/00

CPC分类号： G11B7/1374 ,  G11B7/1275 ,  G11B7/1353 ,  G11B7/1356 ,  G11B7/1365 ,  G11B7/1369 ,  G11B7/1378 ,  G11B7/13922 ,  G11B7/13925 ,  G11B7/1398 ,  G11B2007/0006

摘要： An optical pickup apparatus for information recording and/or reproduction on different optical information recording media with compatibility among these media, the optical surface of a first objective lens and the optical surface of a second objective lens are formed only of a refractive surface. The second objective lens is used in common for the first light flux with a wavelength of λ1 and the second light flux with a wavelength of λ2, but in the case where the protective substrate t2 of the second optical information recording medium and the protective substrate t3 of the third optical information recording medium are the same, it is not necessary to take the difference in thickness of the protective substrate into consideration. Chromatic aberration based on the difference in wavelength between the first light flux and the second light flux can be corrected by displacing the second coupling lens.

摘要翻译： 用于在这些介质之间具有兼容性的不同光学信息记录介质上的信息记录和/或再现的光学拾取装置，第一物镜的光学表面和第二物镜的光学表面仅由折射表面形成。 第二物镜用于波长为λ1的第一光束和波长为λ2的第二光通量，但是在第二光学信息记录介质和保护基板t3的保护基板t2的情况下 第三光信息记录介质的厚度相同时，不需要考虑保护基板的厚度差。 可以通过移动第二耦合透镜来校正基于第一光束和第二光束之间的波长差的色像差。

公开(公告)号：US07570547B2

公开(公告)日：2009-08-04

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。

公开(公告)号：US20090147657A1

公开(公告)日：2009-06-11

申请号：US12320697

申请日：2009-02-02

申请人： Kiyono Ikenaka ,  Kohei Ota ,  Yuichi Atarashi

发明人： Kiyono Ikenaka ,  Kohei Ota ,  Yuichi Atarashi

IPC分类号： G11B7/00

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

摘要： An optical system has an optical functional surface including a common region used for conducting information recording and/or reproducing for both of a first optical information recording medium and a second optical information recording medium. The common region comprises a refractive surface of an imaginary basic aspherical surface and a optical path difference providing structure in which plural ring-shapes zones are separated around the center of an optical axis and neighboring ring-shaped zones are displaced to each other in a direction of an optical axis so as to cause an optical path difference obtained by multiplying a predetermined wavelength λs (λ1

摘要翻译： 光学系统具有包括用于对第一光学信息记录介质和第二光学信息记录介质进行信息记录和/或再现的公共区域的光学功能表面。 公共区域包括假想基本非球面的折射表面和光程差提供结构，其中多个环形区域围绕光轴的中心分开，并且相邻的环形区域沿着方向 以使得通过将预定波长lambdas（λ1