公开(公告)号：US08483033B2

公开(公告)日：2013-07-09

申请号：US13547342

申请日：2012-07-12

Applicant: Naoki Yamagata ,  Satoshi Inoue ,  Shuichi Takeuchi

Inventor： Naoki Yamagata ,  Satoshi Inoue ,  Shuichi Takeuchi

IPC: G11B7/135

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

Abstract: An objective optical system for an optical information recording/reproducing apparatus, at least one surface of the objective optical system being configured to be a phase shift surface having a phase shift structure, wherein: the phase shift surface has a first area contributing to converging first, second and third light beams onto recording surfaces of first, second and third optical discs, respectively; in the first area, the phase shift surface has at least two types of phase shift structures including a first phase shift structure having first steps and a second phase shift structure having second steps; the phase shift surface has a plurality of combinations of annular zones which satisfy a condition: 0.95

Abstract translation: 一种用于光学信息记录/再现装置的物镜光学系统，所述物镜光学系统的至少一个表面被配置为具有相移结构的相移表面，其中：所述相移表面具有有助于首先收敛的第一区域 ，第二和第三光束分别连接到第一，第二和第三光盘的记录表面上; 在第一区域中，相移表面具有至少两种类型的相移结构，包括具有第一步骤的第一相移结构和具有第二步骤的第二相移结构; 相移面具有满足条件：0.95

公开(公告)号：US08270279B2

公开(公告)日：2012-09-18

申请号：US13069762

申请日：2011-03-23

Applicant: Satoshi Inoue ,  Shuichi Takeuchi

Inventor： Satoshi Inoue ,  Shuichi Takeuchi

IPC: G11B7/00

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

Abstract: An objective lens for an optical information recording/reproducing apparatus, at least one of optical surfaces of the objective lens comprising a diffraction surface having a diffraction structure defined by an optical path difference function, and wherein: the diffraction surface has a first region contributing to converging first and second light beams and having a diffraction structure configured such that diffraction orders at which the diffraction efficiencies are maximized for the first and second light beams are 1st order; the diffraction surface has a second region located outside the first region, and the second region is configured to contribute to converging the first light beam and not to contribute to convergence of the second light beam; and the objective lens satisfies a condition: 35

Abstract translation: 一种用于光学信息记录/再现装置的物镜，所述物镜的光学表面中的至少一个包括具有由光程差函数限定的衍射结构的衍射面，并且其中：所述衍射面具有有助于 会聚第一和第二光束并且具有被构造为使得第一和第二光束的衍射效率最大化的衍射级为1级的衍射结构; 所述衍射面具有位于所述第一区域外的第二区域，所述第二区域被配置为有助于会聚所述第一光束，并且不有助于所述第二光束的会聚; 并且物镜满足条件：35

公开(公告)号：US08089705B2

公开(公告)日：2012-01-03

申请号：US12103910

申请日：2008-04-16

Applicant: Naoki Yamagata ,  Shuichi Takeuchi

Inventor： Naoki Yamagata ,  Shuichi Takeuchi

IPC: G02B13/18

CPC classification number: G11B7/1374 ,  G11B7/22

Abstract: There is provided an objective lens for an optical pick-up. The objective lens includes a first surface on a light source side, and a second surface on an optical disc side. The first surface has a convex shape. The objective lens is formed to be a single-element lens having a numerical aperture of 0.75 or more. In this configuration, the objective lens satisfies a condition: 0.95

Abstract translation: 提供了用于光学拾取器的物镜。 物镜包括光源侧的第一表面和光盘侧的第二表面。 第一表面具有凸形。 物镜形成为数值孔径为0.75以上的单像素透镜。 在该结构中，物镜满足以下条件：0.95 <（n-1）·tan＆Thetas; max <1.50（1）其中＆thetas; max表示与第一表面相对于光轴的法线的最大角度 第一表面的有效直径，n表示物镜的折射率。

公开(公告)号：US08018816B2

公开(公告)日：2011-09-13

申请号：US12609273

申请日：2009-10-30

Applicant: Naoki Yamagata ,  Shuichi Takeuchi

Inventor： Naoki Yamagata ,  Shuichi Takeuchi

IPC: G11B7/135

CPC classification number: G11B7/1392 ,  G02B3/04 ,  G11B7/1374

Abstract: A resin objective lens having a numerical aperture NA≧0.75. The objective lens satisfies a condition: 0≦|SC|MAX/f

Abstract translation: 数值孔径NA≥0.75的树脂物镜。 物镜满足条件：0＆nlE; | SC | MAX / f <0.002其中f表示波长λ处的焦距，| SC | MAX表示在大于或等于的范围内针对正弦条件的犯罪的最大绝对值 等于相对于光轴的有效光束半径的0％且小于90％。 物镜被配置为使得在有效光束半径的100％点处的正弦条件的攻击小于在90％点处限定的正弦条件。 物镜的至少一个光源侧表面形成为非球面，物镜满足条件：1.40 <（n-1）·（SAG1）'MAX·/ NA2 <1.95其中（SAG1）' MAX表示有效光束直径内的光源侧表面的最大梯度。

公开(公告)号：US20110122758A1

公开(公告)日：2011-05-26

申请号：US12949023

申请日：2010-11-18

Applicant: Daisuke Koreeda ,  Shuichi Takeuchi

Inventor： Daisuke Koreeda ,  Shuichi Takeuchi

IPC: G11B7/24

CPC classification number: G11B7/13922 ,  G02B5/1895 ,  G11B7/1353 ,  G11B7/1374 ,  G11B2007/0006

Abstract: An objective optical system for an optical information recording/reproducing apparatus for recording/reproducing for first, second and third optical discs by selectively using three types of substantially collimated light beams including first, second and third light beams respectively having first, second and third wavelengths, wherein at least one of optical surfaces of the objective optical system comprises a diffraction surface having a diffraction structure, the diffraction surface includes a first region defined by first and second optical path difference functions, a second region defined by at least one type of optical path difference function, and a third region defined by at least one type of optical path difference function, the first region satisfies a condition: −0.15

Abstract translation: 一种用于光信息记录/再现装置的物镜光学系统，用于通过选择性地使用分别具有第一，第二和第三波长的第一，第二和第三光束的三种基本上准直的光束来记录/再现第一，第二和第三光盘 其中所述物镜光学系统的至少一个光学表面包括具有衍射结构的衍射表面，所述衍射表面包括由第一和第二光程差函数限定的第一区域，由至少一种类型的光学 路径差分函数和由至少一种类型的光程差函数定义的第三区域，第一区域满足条件：-0.15

公开(公告)号：US07839751B2

公开(公告)日：2010-11-23

申请号：US11352324

申请日：2006-02-13

Applicant: Daisuke Koreeda ,  Koichi Maruyama ,  Shuichi Takeuchi

Inventor： Daisuke Koreeda ,  Koichi Maruyama ,  Shuichi Takeuchi

IPC: G11B7/00 ,  G11B7/135

CPC classification number: G11B7/1367 ,  G11B7/13922 ,  G11B2007/0006

Abstract: An optical system of an optical pick-up is provided. The optical system includes an optical element including at least a phase shift surface among the surfaces thereof, and located closer to a light source than the objective lens. In this configuration, t1≦t2 is satisfied, where t1 represents a thickness of a cover layer of a first optical disc for which a first laser beam is employed, and t2 a thickness of a cover layer of a second optical disc for which a second laser beam, having a longer wavelength than the first laser beam, is employed. NA1≧NA2 is satisfied, where NA1 represents a numerical aperture for the first optical disc, and NA2 the numerical aperture for the second optical disc. The phase shift surface includes a first region that converges the first laser beam on a recording surface of the first optical disc, and the second laser beam on a recording surface of the second optical disc. The first region includes at least an annular zone structure having an annular zone group including a step that gives an additional optical path length to the first laser beam generally by two wavelengths, with respect to an inner refracting surface at a boundary between adjacent refracting surfaces, and a return step portion located at an outer position of the annular zone group.

Abstract translation: 提供光学拾取器的光学系统。 光学系统包括在其表面中至少包括相移表面并且位于比物镜更靠近光源的光学元件。 在该结构中，满足t1＆nlE; t2，其中t1表示采用第一激光束的第一光盘的覆盖层的厚度，t2表示第二光盘的覆盖层的厚度， 使用具有比第一激光束长的波长的激光束。 NA1≥NA2，其中NA1表示第一光盘的数值孔径，NA2表示第二光盘的数值孔径。 相移表面包括将第一激光束会聚在第一光盘的记录表面上的第一区域和在第二光盘的记录表面上的第二激光束。 第一区域至少包括具有环形区域组的环形区域结构，所述环形区域组包括相对于相邻折射表面之间的边界处的内部折射表面给予第一激光束的附加光程长度通常为两个波长的步骤， 以及位于所述环形区域组的外部位置的返回台阶部。

公开(公告)号：US07830772B2

公开(公告)日：2010-11-09

申请号：US12194081

申请日：2008-08-19

Applicant: Yoshiyuki Tashiro ,  Daisuke Koreeda ,  Shuichi Takeuchi

Inventor： Yoshiyuki Tashiro ,  Daisuke Koreeda ,  Shuichi Takeuchi

IPC: G11B7/00

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

Abstract: There is provided an objective optical system for an optical information recording/reproducing device. The objective optical system includes an optical element having an annular zone structure on at least one surface. The annular zone structure includes annular zones configured to have at least one step formed, at a boundary between adjacent ones of the annular zones, to extend in a direction of an optical axis. The at least one step is provided to cause a predetermined optical path length difference between a light beam passing through an outside of the boundary and a light beam passing through an inside of the boundary. The predetermined optical path length difference given to a first light beam by the at least one step is approximately equal to an odd multiple of a first wavelength λa. Abbe number of material of the optical element satisfies a condition of 15

Abstract translation: 提供了一种用于光信息记录/再现装置的物镜光学系统。 物镜光学系统包括在至少一个表面上具有环形区域结构的光学元件。 环形区域结构包括环形区域，其被配置为具有在相邻环形区域之间的边界处形成的沿着光轴方向延伸的至少一个台阶。 提供至少一个步骤以使通过边界外侧的光束和通过边界内部的光束之间的预定光程长度差。 通过至少一个步骤给予第一光束的预定光程长度差近似等于第一波长λa的奇数倍。 光学元件的阿贝数量满足15 <＆gt; d <35的条件。

公开(公告)号：US07813252B2

公开(公告)日：2010-10-12

申请号：US12195639

申请日：2008-08-21

Applicant: Daisuke Koreeda ,  Shuichi Takeuchi

Inventor： Daisuke Koreeda ,  Shuichi Takeuchi

IPC: G11B7/00

CPC classification number: G11B7/13922 ,  G11B7/1353 ,  G11B7/1374 ,  G11B7/1376 ,  G11B2007/0006

Abstract: There is provided an optical pick-up including first to third light sources respectively emitting first to third light beams, a first coupling lens, and an objective lens formed to converge each of the first, second and third light beams onto the first, second and third optical discs, respectively. The objective lens has a step structure including a plurality of concentrically formed refractive surface zones divided by steps, the step structure having a function of giving, at each step, an optical path length difference of approximately 2λ1 to the first light beam. The first coupling lens causes the first light beam to be incident on the objective lens as a converging beam. The objective lens is positioned to satisfy a condition: −0.35

Abstract translation: 提供了包括分别发射第一至第三光束的第一至第三光源的光学拾取器，第一耦合透镜和物镜，其将第一，第二和第三光束中的每一个会聚到第一，第二和第二光束上， 第三光盘。 物镜具有阶梯结构，该阶梯结构包括多个同步形成的折射表面区域，其阶梯结构具有在每个阶段给出与第一光束大约2λ1的光程长度差异的功能。 第一耦合透镜使第一光束作为会聚光束入射到物镜上。 物镜被定位成满足条件：-0.35

公开(公告)号：US07738345B2

公开(公告)日：2010-06-15

申请号：US11456943

申请日：2006-07-12

Applicant: Daisuke Koreeda ,  Koichi Maruyama ,  Shuichi Takeuchi ,  Yoshiyuki Tashiro

Inventor： Daisuke Koreeda ,  Koichi Maruyama ,  Shuichi Takeuchi ,  Yoshiyuki Tashiro

IPC: G11B7/00

CPC classification number: G11B7/1374 ,  G11B2007/0006

Abstract: There is provided an objective lens used for three types of optical discs including by selectively using one of three types of light beams. At least one of surfaces of the objective lens is provided with a first region converging the third light beam on a recoding surface of the third optical disc. The first region has a step structure configured to have concentric refractive surface zones and to give an optical path length difference to an incident beam at each step formed between adjacent refractive surface zones. The step structure is configured such that the optical path length difference given by each step is substantially equal to an odd multiple of a wavelength of a first light beam, and a value of differentiation of an optical path difference function defining the step structure crosses zero in a height ranging from 30% to 70% of an effective diameter of the first region.

Abstract translation: 提供了一种用于三种类型的光盘的物镜，包括通过选择性地使用三种类型的光束之一。 物镜的至少一个表面设置有将第三光束会聚在第三光盘的记录表面上的第一区域。 第一区域具有构造成具有同心折射表面区域并且在相邻折射表面区域之间形成的每个台阶处的入射光束的光程长度差异的台阶结构。 台阶结构被配置为使得由每个步骤给出的光程长度差基本上等于第一光束的波长的奇数倍，并且限定步骤结构的光程差函数的微分值在零 高度为第一区域的有效直径的30％至70％。

公开(公告)号：US20100001388A1

公开(公告)日：2010-01-07

申请号：US12559234

申请日：2009-09-14

Applicant: Hiroshi Kobayashi ,  Kenji Kobae ,  Shuichi Takeuchi ,  Hidehiko Kira

Inventor： Hiroshi Kobayashi ,  Kenji Kobae ,  Shuichi Takeuchi ,  Hidehiko Kira

IPC: H01L23/02 ,  H01L21/50

CPC classification number: H01L23/24 ,  G06K19/07728 ,  H01L23/16 ,  H01L23/3135 ,  H01L2224/16225 ,  H01L2224/32225 ,  H01L2224/73204 ,  H01L2924/00

Abstract: An electronic device includes: a base; a conductor pattern formed on the base; a circuit chip electrically connected to the conductor pattern; and a reinforcing member which is disposed on the base to surround the circuit chip, whose outer shape is like a ring, and which includes concentric rings as an internal structure. The electronic device further includes a sealing member which fills an inside of the reinforcing member while covering the top of the circuit chip, thereby sealing the circuit chip on the base.

Abstract translation: 电子设备包括：基座; 形成在基座上的导体图案; 电连接到所述导体图形的电路芯片; 以及加强构件，其设置在所述基座上以围绕所述电路芯片的外形为环状，并且包括作为内部结构的同心环。 电子装置还包括密封构件，其在覆盖电路芯片的顶部的同时填充加强构件的内部，从而将电路芯片密封在基座上。