公开(公告)号：JPH086082A

公开(公告)日：1996-01-12

申请号：JP13704694

申请日：1994-06-20

Applicant: IBM

Inventor： YAMATO SOICHI ,  TAIRA YOICHI

IPC: G02F1/35 ,  G02F1/355 ,  G02F1/37 ,  H01S3/109

Abstract: PURPOSE: To enable a resonator to be synchronized with a small easy structure without lowering optical output of a changed wavelength. CONSTITUTION: A laser beam emitted from a laser beam machine 12 is made incident on a resonator 16, whose resonance frequency is modulated in the electrical field imparted to the a BBO crystal 14 inside the resonator 16. In the BBO crystal 14, a modulation electrode 32 is arranged, as is a feedback electrode 34, so that the laser beam modulated in the BBO crystal 14 is detected by a photodetector 18. With a signal proportional to the error of the resonance frequency obtained from the photodetector 18, an electrical field is imparted to the BBO crystal 14 through the electrode 32, thereby changing the resonator length, controlling by feeding back negatively against the resonance frequency of the resonator 16 that is determined by the BBO crystal 14 through the imparting of the electrical field, and making synchronization by maintaining the error nearly on a zero level.

公开(公告)号：JPH086081A

公开(公告)日：1996-01-12

申请号：JP13704594

申请日：1994-06-20

Applicant: IBM

Inventor： TAIRA YOICHI

IPC: G02F1/35 ,  G02F1/355 ,  G02F1/37 ,  G02F1/39 ,  H01S3/109

Abstract: PURPOSE: To change wavelength of light highly efficiently with a simple easy structure without the need of complex adjustment. CONSTITUTION: The wavelength changing device 10 is composed of a laser device 12 for emitting a laser beam; collimator lens system 18 containing the lenses 14, 16 that adjust the wave face and diameter of a light beam for condensing; resonator 26 composed of the mirrors 22, 24 of the same radius of curvature; and a crystal 20 with a large receptive angle which is arranged inside the resonator 26 and also near the converging part. The resonator 26 is such that it is formed with a confocal system resonator in which the mirrors 22, 24 are coincident in the focal position and the center of curvature, and that each radius of curvature of the mirrors 22 24 is set larger than the curvature of the wave face of a light beam from the collimator lens system 18. Consequently, the curvature on the wave face is changed at the time of reflection in each mirror 22, 24, with SHG light efficiently emitted only in the light beam passing through the forward path.

公开(公告)号：JP2005181691A

公开(公告)日：2005-07-07

申请号：JP2003422592

申请日：2003-12-19

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： NUMATA HIDETOSHI ,  TAIRA YOICHI ,  SUEOKA KUNIAKI

IPC: G02B5/02 ,  G02F1/1335 ,  G02F1/13357

CPC classification number: G02F1/133524 ,  Y10S385/901

Abstract: PROBLEM TO BE SOLVED: To provide an optical element and a color display device by which the performance of luminance and a viewing angle are improved and the performance of chromaticity also can be improved by performing the correction of the viewing angle and the emphasis of front luminance or the emphasis of a degree of diffusion.
SOLUTION: The optical element which is a film-like optical element for correcting the angle of light to a prescribed direction is constituted of two materials 20, 21 between which a difference of refractive indexes is at least 0.1. One material 20 constitutes a plurality of light guides causing total reflection on a boundary with the other adjacent material 21, these light guides 22 are formed so as not to be arrayed at equal intervals or so as to have respectively different cross-sectional areas and the ratio of the width or diameter of an incident part of each light guide to the film thickness of the optical element 15 is at least 1:10.
COPYRIGHT: (C)2005,JPO&NCIPI

Abstract translation: 要解决的问题：提供一种光学元件和彩色显示装置，通过该光学元件和彩色显示装置，通过执行视角和强调的校正，可以提高亮度和视角的性能并且还可以提高色度的性能 的前景亮度或强度的一个扩散程度。 解决方案：作为用于将光的角度校正到规定方向的膜状光学元件的光学元件由折射率差为0.1以下的两种材料20,21构成。 一个材料20构成多个导光体，在与另一个相邻材料21的边界上进行全反射，这些光导22形成为不以相等的间隔排列或者分别具有不同的横截面积，并且 每个光导入射部分的宽度或直径与光学元件15的膜厚之比至少为1:10。 版权所有（C）2005，JPO＆NCIPI

公开(公告)号：JP2001174804A

公开(公告)日：2001-06-29

申请号：JP35967099

申请日：1999-12-17

Applicant: IBM JAPAN

Inventor： TAIRA YOICHI

IPC: G02F1/137 ,  G02F1/1335 ,  G02F1/136 ,  G02F1/139

Abstract: PROBLEM TO BE SOLVED: To provide a reflection type guest-host liquid crystal display(LCD) device realizing high contrast ratio and high reflectance and having a low price and a simple structure. SOLUTION: The reflection type liquid crystal display device has a first transparent substrate, a first electrode means disposed on one surface of the first transparent substrate, a second transparent substrate having a first surface and a second surface and a second electrode means disposed on the first surface of the second transparent substrate. The first and the second electrode means are opposed to each other and the first and the second transparent substrates are arranged so that a space is generated between the first and the second electrode means and a guest-host liquid crystal layer is disposed at the space. The first and the second electrode means regulate plural pixel positions and reflection units each having a triangular pyramid shape are respectively disposed in plural pixel positions on the second surface of the second transparent substrate.

公开(公告)号：JP2000241812A

公开(公告)日：2000-09-08

申请号：JP4324699

申请日：1999-02-22

Applicant: IBM

Inventor： TAIRA YOICHI

IPC: G02B6/00 ,  F21V8/00 ,  G02F1/1335 ,  G02F1/13357

Abstract: PROBLEM TO BE SOLVED: To provide a liquid crystal display device without using a color filter even when a linear or planer illumination light source is used. SOLUTION: The transmission type liquid crystal display device consists of a linear or planer light source, a wedge-like light transmission plate where the light emitting from the illumination light source enters, a wavelength separation means to separate the light emitting from the wedge-like light transmission plate in an oblique direction and almost parallel to the plate into plural wavelength regions, a condensing means which accepts the separated light by the wavelength separation means and condenses the light in the specified wavelength region on a specified subpixel and a liquid crystal layer 1 which can be controlled in each subpixel. As for the light condensing means, a cylindrical lens array is preferably used. The wedge-like light transmission plate causes regular reflection of light from the surface opposite to the emitting face and it may have a metal surface mirror 6. The transmission plate has 0.1 to 3 deg., preferably 0.3 to 1 deg. apex.

公开(公告)号：JPH08262354A

公开(公告)日：1996-10-11

申请号：JP4425295

申请日：1995-03-03

Applicant: IBM

Inventor： YAMADA FUMIAKI ,  TAIRA YOICHI

IPC: G02B26/10 ,  G02F1/13 ,  G02F1/1337

Abstract: PURPOSE: To provide a high speed energy irradiation device with high light using efficiency and a method therefor. CONSTITUTION: An exposing device 10 is provided with a laser oscillator 20, an optical shutter 22, an image forming lenses 24, 28, a screen 26, a vertical deflecting device 30, a horizontal deflecting device 40, a vertical moving device 50, a liquid crystal panel 60, and a controller 70. A light beam injected from the laser oscillator 20 passes through the optical shutter 22 when the optical shutter 22 is opened so as to irradiate a slit or a pattern on the screen 26 by the image forming lense 24. The light passes through the slit/pattern converges gradually by means of the image forming lens 28 so as to be incident on a galvano mirror 32. The beam is deflected at a desired angle in the horizontal direction by means of the galvano mirror 42. Subsequently, the beam is imaged on a required position in the liquid crystal panel 60 arranged on a stage 52 so as to carry out exposure.

公开(公告)号：GB2495668A

公开(公告)日：2013-04-17

申请号：GB201301212

申请日：2011-06-22

Applicant: IBM

Inventor： TAIRA YOICHI ,  KOHARA SAYURI ,  HEROUX JEAN

IPC: G02B6/125

Abstract: The purpose of the present invention is to reduce the optical loss on six surfaces of an intersecting region space (that usually has a shape of a rectangular parallelepiped) of cores, said intersecting region space being formed by intersection of a plurality of cores of an optical waveguide. Disclosed is an intersecting region structure of cores, in which the same material as that of the cores (instead of the material of the cladding) is additionally disposed on two surfaces, namely the upper and lower surfaces of an intersecting region space where a plurality of cores, among the cores of an optical waveguide and a cladding that surrounds the cores, intersect with each other. Also disclosed is an intersecting region structure, in which four lateral surfaces that define (isolate) an intersecting region space where a plurality of cores, among the cores and the cladding constituting an optical waveguide, intersect with each other, namely four spaces of the cores discontinuous to the intersecting region space, said cores being connected to the intersecting region space, are filled with the same material as that of the cladding (instead of using the core material so that the cores are uninterruptedly continued through the intersecting region space).

公开(公告)号：DE112011102190T5

公开(公告)日：2013-04-11

申请号：DE112011102190

申请日：2011-06-22

Applicant: IBM

Inventor： TAIRA YOICHI ,  HEROUX JEAN ,  KOHARA SAYURI

IPC: G02B6/125

Abstract: Die Menge des optischen Verlusts wird an sechs Ebenen eines Kernkreuzungsraums (der normalerweise eine Würfelform aufweist) verringert, der von einer Mehrzahl sich kreuzender Kerne in einem optischen Wellenleiter gebildet wird. Offenbart wird die Struktur einer Kernkreuzung in einem optischen Wellenleiter, der von einer Mehrzahl von Kernen und einem Mantel gebildet wird, der die Kerne umgibt, wobei die Struktur dadurch gekennzeichnet ist, dass derselbe Werkstoff wie der der Kerne zu zwei Ebenen, der oberen und der unteren Ebene, jedes der Kernkreuzungsräume hinzugefügt wird, an dem sich die Mehrzahl der Kerne kreuzen (statt einen Mantelwerkstoff zu verwenden). Offenbart wird die Struktur einer Kernkreuzung in einem optischen Wellenleiter, der von einer Mehrzahl von Kernen und einem Mantel gebildet wird, wobei die Struktur dadurch gekennzeichnet ist, dass vier Ebenen, die jeden der Kernkreuzungsräume, an denen sich die Mehrzahl von Kernen kreuzt, teilen (absperren), das heißt vier Unterbrechungsräume zwischen dem Kernkreuzungsraum und den damit verbundenen Räumen, mit demselben Werkstoff gefüllt sind wie dem des Mantels (statt einen Kernwerkstoff zu verwenden, sodass der Kernkreuzungsraum nahtlos mit den umgebenden Kernkreuzungsräumen verbunden ist).

公开(公告)号：BRPI0917363A2

公开(公告)日：2012-05-02

申请号：BRPI0917363

申请日：2009-11-03

Applicant: IBM

Inventor： HORIBE AKIHIRO ,  YAMADA FUMIAKI ,  TAIRA YOICHI

IPC: G02B6/42 ,  G02B6/036

Abstract: The present invention relates to a method of aligning circular multi-core fibers, wherein the method utilized independent and individually selected cores to receive, transmit, and emit light from input devices. The present invention further relates to positioning the ends of a multi-core fiber in order to detect and determine the precise locations of individually selected core fibers.

公开(公告)号：IE20000858A1

公开(公告)日：2001-07-11

申请号：IE20000858

申请日：2000-10-25

Applicant: IBM

Inventor： TAIRA YOICHI

IPC: G02F1/137 ,  G02F1/1335 ,  G02F1/136 ,  G02F1/139 ,  G02F1/133 ,  G02F1/1347

Abstract: It is the object of the present invention to provide the reflective guest-host LCD device of the low cost and the simple structure which realises both the high contrast ratio and high reflectivity. A reflective liquid crystal display device of the present invention comprises: a first transparent substrate; a first electrode means disposed on one surface of the first transparent substrate; a second transparent substrate having a first surface and a second surface; and a second electrode means disposed on the first surface of the second transparent substrate; wherein the first transparent substrate and the second transparent substrate are so arranged that the first electrode means and the second electrode means faces to each other and a space is provided between the first electrode means and the second electrode means, a guest-host liquid crystal layer is disposed in the space, the first electrode means and the second electrode means define a plurality of picture element positions, and a reflector unit having a shape of a trigonal pyramid is disposed at each of the plurality of picture element positions on the second surface of the second transparent substrate.