公开(公告)号：DE112011102190B4

公开(公告)日：2018-09-27

申请号：DE112011102190

申请日：2011-06-22

Applicant: IBM

Inventor： TAIRA YOICHI ,  KOHARA SAYURI ,  HEROUX JEAN

IPC: G02B6/125

Abstract: Optischer Wellenleiter (4), aufweisend:eine Mehrzahl von linearen Kernen (2), die in einer Ebene in Form eines Einschichtkerns angeordnet sind, eine Kombination von zueinander nicht parallelen Kernen (2) in der Ebene aufweisen und aus einem Werkstoff mit einem Brechungsindex n2 hergestellt sind;einen Mantel (3), der die Mehrzahl von Kernen (2) umgibt, so angeordnet, dass er gemäß der Anordnungsbeziehung zu der Mehrzahl von Kernen (2) Grenzflächen bildet und aus einem Werkstoff mit einem Brechungsindex n3 hergestellt ist; undKernkreuzungsräume (1), die von der Mehrzahl einander kreuzender Kerne (2) gebildet werden und aus einem Werkstoff mit einem Brechungsindex n1 hergestellt sind,wobei eine Differenz zwischen den Brechungsindizes wie folgt eingestellt ist: n1 (Kernkreuzung (1)) > n2 (Kern (2)) > n3 (Mantel (3)),ein Deckel (5), der aus einem Werkstoff mit dem Brechungsindex n2 hergestellt ist, auf der oberen und unteren Ebene des Kernkreuzungsraumes (1) angeordnet wird, undein Brechunsindexverhältnis n2/n3 an einer gemäß der Anordnungsbeziehung zwischen dem Kern (2) und dem Mantel (3) gebildeten Grenzfläche gleich einem Brechungsindexverhältnis n1/n2 an einer gemäß der Anordnungsbeziehung zwischen dem Kernkreuzungsraum (1) und dem Deckel (5) gebildeten Grenzfläche ist.

公开(公告)号：JP2013156656A

公开(公告)日：2013-08-15

申请号：JP2013086308

申请日：2013-04-17

Applicant: Internatl Business Mach Corp ,  インターナショナル・ビジネス・マシーンズ・コーポレーションInternational Business Machines Corporation

Inventor： TAIRA YOICHI ,  OBARA SAYURI ,  JEAN HEROUX

IPC: G02B6/122

CPC classification number: G02B6/125 ,  G02B2006/1219

Abstract: PROBLEM TO BE SOLVED: To reduce the amount of optical loss at six planes of a core intersection space (typically having a rectangular parallelepiped shape) formed by intersection of a plurality of optical waveguide cores.SOLUTION: In an intersection structure comprising a plurality of cores 2 and a clad 3 that surrounds the cores 2, the same material as that of the cores 2 is added to two planes, i.e., upper and lower planes, of intersection spaces where the plurality of cores 2 intersect (instead of using a clad material). In an alternative intersection structure comprising cores 2 and a clad 3, four planes that divide (isolate) the intersection spaces where the plurality of cores 2 intersect, that is, four discontinuity spaces 6 between the core intersection space and the cores connected thereto, are filled with the same material as that of the clad 3 (instead of using a core material so as to be connected seamlessly).

Abstract translation: 要解决的问题：减少由多个光波导芯相交形成的芯交叉部分（通常具有长方体形状）的六个平面处的光损耗量。解决方案：在包括多个核心的交叉结构 2和围绕芯2的包层3，将与芯2相同的材料添加到多个芯2相交的交叉空间的两个平面即上平面和下平面（而不是使用包层材料 ）。 在包含芯2和包层3的替代交叉结构中，划分（隔离）多个芯2相交的交叉空间的四个平面，即，在核心交叉空间和与其连接的芯之间的四个不连续空间6是 填充与包层3相同的材料（而不是使用芯材料以便无缝连接）。

公开(公告)号：JP2010261990A

公开(公告)日：2010-11-18

申请号：JP2009110334

申请日：2009-04-30

Applicant: Internatl Business Mach Corp ,  インターナショナル・ビジネス・マシーンズ・コーポレーションInternational Business Maschines Corporation

Inventor： TAIRA YOICHI ,  NAKAGAWA SHIGERU ,  NUMATA HIDETOSHI ,  SUEOKA KUNIAKI

IPC: G02B6/13 ,  G02B6/122 ,  G02B6/42

CPC classification number: G02B6/4214 ,  B29D11/0075 ,  G02B5/04 ,  G02B6/421 ,  G02B6/43

Abstract: PROBLEM TO BE SOLVED: To provide an optical coupling structure for interfacing between an optical device arranged on a substrate with an optical waveguide formed on the substrate. SOLUTION: A method for manufacturing an optical coupling element includes steps for: preparing a wafer 130 formed on an inorganic solid material on a dicing tape 140; cutting the back surface of the wafer 130 to form substantially angled portions using a dicing blade 142 having a point angle; and stripping the dicing tape 140 from the wafer 130 and separating the wafer at the valleys between the substantially angled portions to obtain a three-dimensional polyhedral light-reflecting member 114, which includes a mirror surface corresponding to a surface M of the wafer 130, as an optical coupling element. The obtained optical coupling element 114 is inserted into a trench, which opens in the substrate main surface of an optical transmission substrate 100 while crossing the optical waveguide 106a of the optical transmission substrate 100 substantially perpendicularly, to provide an optical coupling structure with the outside. COPYRIGHT: (C)2011,JPO&INPIT

Abstract translation: 要解决的问题：提供一种用于在布置在基板上的光学装置与形成在基板上的光波导之间进行接口的光耦合结构。 解决方案：一种用于制造光耦合元件的方法包括以下步骤：制备形成在切割带140上的无机固体材料上的晶片130; 使用具有点角度的切割刀片142切割晶片130的后表面以形成大致成角度的部分; 并从晶片130剥离切割胶带140，并在基本成角度的部分之间的谷处分离晶片，以获得三维多面体光反射部件114，其包括对应于晶片130的表面M的镜面， 作为光耦合元件。 所获得的光耦合元件114被插入到在光传输基板100的基板主表面上大致垂直地穿过光传输基板100的光波导106a的沟槽中，以提供与外部的光耦合结构。 版权所有（C）2011，JPO＆INPIT

公开(公告)号：JP2003066208A

公开(公告)日：2003-03-05

申请号：JP2002114722

申请日：2002-04-17

Applicant: Internatl Business Mach Corp ,  インターナショナル・ビジネス・マシーンズ・コーポレーション

Inventor： IDE TAKESHI ,  MIZUTA HIDEYUKI ,  TAIRA YOICHI ,  SAIKAI SATOKO ,  YAMADA ATSUSHI

IPC: G02B6/00 ,  F21V8/00 ,  F21Y103/00 ,  G02B5/02 ,  G02F1/13357 ,  G06T11/00

Abstract: PROBLEM TO BE SOLVED: To provide a sufficiently uniform and random discrete pattern. SOLUTION: The pattern is formed of two-dimensionally arranged discrete dots and the dots are generated through the use of a low discrepancy sequence. It is discovered that the favorable and uniform discrete pattern is provided, when D being the square of a discrepancy satisfies fixed relation with the number N of the dots included in a section. The dots are automatically generated or erased in connection with a filling factor so that the excellent discrete pattern is provided even when the filling factor is rapidly changed. An excellent blue noise characteristic is given to the discrete pattern and also the excellent dithering pattern of a gradation picture is also given to the discrete pattern.

Abstract translation: 要解决的问题：提供足够均匀和随机的离散模式。 解决方案：图案由二维布置的离散点形成，并且通过使用低差异序列生成点。 发现当D为差异的平方与D所包含的点数N的固定关系时，提供了有利且均匀的离散模式。 这些点与填充因子相关地自动产生或擦除，使得甚至当填充因子快速变化时也提供优异的离散图案。 对离散图案赋予优异的蓝噪声特性，并且还对离散图案给出了优异的灰度图像抖动图案。

公开(公告)号：JP2001110218A

公开(公告)日：2001-04-20

申请号：JP28777699

申请日：1999-10-08

Applicant: IBM

Inventor： TAIRA YOICHI ,  YAMADA FUMIAKI ,  SAIKAI SATOKO

IPC: G09F9/00 ,  F21V8/00 ,  F21Y103/00 ,  G02B6/00 ,  G02F1/13 ,  G02F1/1335 ,  G02F1/13357

Abstract: PROBLEM TO BE SOLVED: To provide a backlight device capable of generating an output light spreading at an angle smaller than 10-degree FWHM, requiring a lower manufacturing cost and improving the usage efficiency of a light from a light source. SOLUTION: A backlight device has a wedged light conductor of refraction factor n1 having an upper face, a bottom face and side faces, a light source for applying a light to the side faces of the wedged light conductor, a first light transmissive layer of refraction factor n2, smaller than the refraction factor n1, having an upper face and a bottom face, the upper face of the first light transmissive layer being mounted on the bottom face of the wedged light conductor, and a light deflecting layer having an upper face mounted on the bottom face of the first transmissive layer for deflecting an incident light from the first light transmissive layer toward the upper face of the wedged light conductor.

公开(公告)号：JPH0511287A

公开(公告)日：1993-01-19

申请号：JP15953091

申请日：1991-06-04

Applicant: IBM

Inventor： TAIRA YOICHI

IPC: G02F1/35 ,  G02B27/09 ,  G02F1/37 ,  H01S3/101 ,  H01S3/108

Abstract: PURPOSE: To prevent optical destruction of crystal as a wavelength conversion element to obtain a high wavelength conversion efficiency by providing a converging optical system which converges incident laser light on a wavelength conversion element in an optical resonator and makes the section of a light beam noncircular. CONSTITUTION: A continuous oscillation type argon laser 5 emits coherent laser light 9. A plane mirror 6 and a concave mirror 7 form a Fabry-Perot resonator 15 where a standing wave is generated between them. Cylindrical lenses 12 and 13 converges laser light 9 from the laser medium 5, which is reciprocated in the resonator 15, toward a wavelength conversion element 14 and make the section of the converged laser light beam noncircular, preferably, elliptic. That is, the component in the direction of the YZ plane of the wavelength conversion element 14 is much converged but that in the direction of the ZX plane is not so converged. Cylindrical lenses 12 and 13 reduces convergence in the ZX plane to converge the light on the wavelength conversion element 14 and not only avoid concentration of energy to prevent optical destruction but also improve the convergence rate in the YZ plane to improve the wavelength conversion efficiency.

公开(公告)号：JPH0959404A

公开(公告)日：1997-03-04

申请号：JP21868195

申请日：1995-08-28

Applicant: IBM

Inventor： YAMADA FUMIAKI ,  TAIRA YOICHI

IPC: C08J5/18 ,  C08J7/00 ,  G02F1/1337

Abstract: A method is provided for modifying a photosensitive chemical material which controls exposure to make spectral intensity ratio constant, adjusts the pre-tilt angles of a liquid crystal orientation film easily and accurately, and gives desired properties to the photosensitive chemical material. A photosensitive chemical material is patterned by the photochemical reaction of a photosensitive chemical material. The photosensitive chemical material is irradiated with light emitted from a light source having a line spectrum having almost single wavelength between 200 nm and 300 nm (for example, a low pressure mercury lamp or a laser lamp) according to a pattern to control the reaction of the photosensitive chemical material. Also, the photosensitive chemical material is irradiated with light having a wavelength of 300 nm or longer to make the photosensitive chemical material cause a reaction to occur that selectively generates active oxygen. Also, the photosensitive chemical material is irradiated with ultraviolet light in an atmospheric gas containing desired functional groups in order to introduce the functional groups into the positions of radicals generated by the decomposition reaction of the photosensitive chemical material due to photochemical reaction.

公开(公告)号：JPH08122792A

公开(公告)日：1996-05-17

申请号：JP24971994

申请日：1994-10-14

Applicant: IBM

Inventor： HASEGAWA MASAKI ,  TAIRA YOICHI

IPC: G02F1/1337

Abstract: PURPOSE: To provide a liquid crystal display device which has excellent visual characteristics with a simple process. CONSTITUTION: A color filter board and a TFT board are nearly evenly coated with polyimide so as to form an orientation film (S1) Rubbing is performed to each board (S2). Each board, to which rubbing is performed, is irradiated with the ultraviolet rays of the linear polarization polarized in the direction along the rubbing direction (S3). A side chain of polyimide in the direction along the linear polarization is thereby cut, and a side chain of the polyimide related to the only pre-tilt angle of liquid crystal can be cut so as to change the pre-tilt angle of the liquid crystal. Each board are arranged opposite to each other with the predetermined cell gap, and periphery is sealed, and liquid crystal is filled between both the boards (S4, S5), and a polarizing plate is attached to the outer surface so as to finish the liquid crystal display device.

公开(公告)号：JPH06223572A

公开(公告)日：1994-08-12

申请号：JP24806793

申请日：1993-10-04

Applicant: IBM

Inventor： SAN HOO DONGU ,  KIRIHATA TOSHIAKI ,  HIYUN JIYON SHIN ,  SUNANAGA TOSHIO ,  TAIRA YOICHI ,  RUISU MADEISON TERUMAN

IPC: G11C11/409 ,  G11C11/407 ,  G11C11/4094

Abstract: PURPOSE: To reduce the power dissipating amounts of a bit line by providing a DRAM structure using a variable precharge voltage detecting technique. CONSTITUTION: In the end of a row address storage(RAS) cycle, a bit line 10 and a complementary bit 12 are short-circuited, and short-circuited through a line 32 with VEQ by equalizing devices 18, 20, and 22, and balancing is operated by bit line precharge in the next RAS cycle. This voltage is higher than the precharge voltage in the previous cycle. When a capacitance 88 of a memory cell to which access is performed stores 0V, the bit line precharge voltage is made lower than that in the previous RAS cycle. When a high level is stored in the cell capacitance of the cell connected with a word line and accessed in each following cycle, the same sequence is repeated in the following RAS cycle, and the bit line precharge voltage is increased in each cycle. Then, a bit line power can not be drawn from a DRAM power source by the balancing with a bit line pair voltage.

公开(公告)号：JPH06102545A

公开(公告)日：1994-04-15

申请号：JP23693492

申请日：1992-09-04

Applicant: IBM

Inventor： TAIRA YOICHI

IPC: G02F1/35 ,  G02B5/04 ,  G02F1/37 ,  H01S3/109

Abstract: PURPOSE: To spatially separate fundamental waves and generated light in a wavelength converter using a nonlinear optical element for generating light having wavelength different from incident fundamental waves. CONSTITUTION: This converter utilizes a lens element for convergence inside the converter or the nonlinear optical element and spatially separates the light generated in the nonlinear optical element from the fundamental waves. For instance, a cylindrical lens 13 for adjusting the size of light beams is arranged at least at the rear part of a nonlinear optical crystal 12 for waveform conversion and the light beam emitted from the crystal 12 is passed through to a tip part separated from the center axis of the lens 13. Thus, the light beam receives a prism effect and the generated light B is separated from the fundamental waves A and propagated by the retractive index dispersion of the lens 13.