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51. 发明授权

US07038995B2 Optical pickup for optically reading/writing data including convergent and aberration correction optical systems 失效
标题翻译：用于光学读/写数据的光学拾取器，包括会聚和像差校正光学系统
公开(公告)号：US07038995B2
公开(公告)日：2006-05-02
申请号：US10041068
申请日：2001-11-01
申请人： Kazuya Kitamura , Yukio Kurata
发明人： Kazuya Kitamura , Yukio Kurata
IPC分类号： G11B7/00
CPC分类号： G11B7/1353 , G02B9/12 , G02B13/0035 , G02B13/004 , G02B13/0055 , G02B13/006 , G02B13/0065 , G02B27/0068 , G11B7/1378 , G11B7/13927
摘要： A lightweight, highly reliable optical pickup including a singlet objective lens is offered by correcting coma aberrations which adversely affect properties of the objective lens having an increased NA. A convergent optical system is composed of a singlet objective lens with a NA of 0.75 or more and includes an aberration-correcting optical system which corrects coma aberrations due to an inclination or shift of central axes of both surfaces of the objective lens or an inclination of the objective lens or the optical storage medium to an optical axis of the optical pickup.
摘要翻译：通过校正对具有增加的NA的物镜的性质产生不利影响的彗形像差来提供包括单重物镜的轻质，高度可靠的光学拾取器。收敛光学系统由NA为0.75以上的单重物镜构成，包括像差校正光学系统，其校正由于物镜两面的中心轴的倾斜或偏移引起的彗形像差或倾斜度物镜或光学存储介质到光学拾取器的光轴。

52. 发明授权

US06626584B2 Two-way optical communication device, two-way optical communication system, and method for assembling two-way optical communication device 失效
公开(公告)号：US06626584B2
公开(公告)日：2003-09-30
申请号：US09925910
申请日：2001-08-09
申请人： Hideaki Fujita , Yorishige Ishii , Yoshifumi Iwai , Toshiyuki Matsushima , Toshihiro Tamura , Yukio Kurata
发明人： Hideaki Fujita , Yorishige Ishii , Yoshifumi Iwai , Toshiyuki Matsushima , Toshihiro Tamura , Yukio Kurata
IPC分类号： G02B636
CPC分类号： G02B6/4246 , G02B6/4214
摘要： A two-way optical communication device for use in a two-way optical communication system for transmitting and receiving an optical signal via a single optical fiber, comprises a light emitting element for generating transmitted light, a photodetector for receiving incoming light emitted from the optical fiber, and a reflection mirror made of a thin film having a high reflectance, having first and second surfaces, the first surface being opposite to the second surface. An optical member including the reflection mirror is provided closer to the optical fiber than the light emitting element. The incoming light emitted from the optical fiber is reflected by the first surface of the reflection mirror to be guided to the photodetector. The transmitted light emitted from the light emitting element or the transmitted light reflected by an end surface of the optical fiber is reflected by at least a portion of the second surface of the reflection mirror to prevent the transmitted light from entering the photodetector.

53. 发明授权

US06021239A Photocoupler and method for producing the same 失效
标题翻译：光电耦合器及其制造方法
公开(公告)号：US06021239A
公开(公告)日：2000-02-01
申请号：US960417
申请日：1997-10-29
申请人： Kohji Minami , Yukio Kurata , Hisato Uetsuka , Hirobumi Ouchi
发明人： Kohji Minami , Yukio Kurata , Hisato Uetsuka , Hirobumi Ouchi
IPC分类号： G02B6/122 , G02B6/34 , G02B6/26
CPC分类号： G02B6/34 , Y10S359/90
摘要： A photocoupler according to the present invention includes: an optical waveguide including a substrate, at least a first dielectric layer provided on the substrate, the first dielectric layer having a tapered structure whose thickness varies in an x-direction in which light is propagated after coupling, and a second dielectric layer provided on the first dielectric layer; a light incidence component provided above the optical waveguide, which causes light incident thereon to be directed toward a surface of the optical waveguide at a prescribed angle; and a bonding section for bonding the light incidence component to the optical waveguide. The bonding section has an edge surface which makes contact with the surface of the waveguide in a straight line and has a portion which makes contact with neither the light incidence component nor the surface of the optical waveguide. The tapered structure of the first dielectric layer has a shape set such that a radiation pattern of light with a wavelength .lambda. output from the optical waveguide of the photocoupler fulfills the following expression:a.sub.n-1 (1-r.sub.n)
摘要翻译：根据本发明的光电耦合器包括：光波导，包括基板，至少第一介电层，设置在基板上，第一介电层具有锥形结构，其厚度在耦合后光传播的x方向上变化以及设置在所述第一电介质层上的第二电介质层; 设置在光波导上方的入射分量，其使入射到其上的光以指定角度指向光波导的表面; 以及用于将光入射分量粘合到光波导的接合部分。接合部分具有与波导表面直线接触的边缘表面，并且具有与光波导的光入射分量和表面不接触的部分。第一介电层的锥形结构具有使得从光电耦合器的光波导输出的具有波长λ的光的辐射图案满足以下表达式的形状：an-1（1-rn）

54. 发明授权

US4989192A Optical pickup apparatus and optical grating assembly therefor 失效
公开(公告)号：US4989192A
公开(公告)日：1991-01-29
申请号：US235901
申请日：1988-08-24
申请人： Yukio Kurata , Hiroshi Ogata , Hikaru Nishihara , Mitsuharu Tomura , Shigeki Tsuji
发明人： Yukio Kurata , Hiroshi Ogata , Hikaru Nishihara , Mitsuharu Tomura , Shigeki Tsuji
摘要： An optical pickup apparatus for optically reading the data stored in a flat information carrier disc in the form of tiny pits. The pickup apparatus directs a beam of light from a light source to the disc surface. The impinging beam is modulated by the data pits and reflected back to a photodector. A novel optical grating assembly is disposed between the light source and the information disc, and includes a diffraction grating for the light beam from the source and a holographic grating for directing part of the light beam reflected by the disc to the photodetector. The diffraction and holographic gratings are formed integral with each other into the grating assembly.

55. 发明授权

US4947261A Portable image input device 失效
标题翻译：便携式图像输入设备
公开(公告)号：US4947261A
公开(公告)日：1990-08-07
申请号：US216268
申请日：1988-07-07
申请人： Toshio Ishikawa , Yukio Kurata
发明人： Toshio Ishikawa , Yukio Kurata
IPC分类号： H04N1/03 , H04N1/031 , H04N1/04 , H04N1/107
CPC分类号： H04N1/0315 , H04N1/03 , H04N1/0313 , H04N1/0402 , H04N1/0408 , H04N1/0435 , H04N1/0455 , H04N1/107 , H04N1/1075 , H04N1/1935 , H04N2201/0048 , H04N2201/0077 , H04N2201/02493
摘要： An image input device of a portable type includes a light source for reading an original document, a photo-electric converting element for converting reflected light from the original document into an electrical signal, a memory function section having a solid state memory element for storing the output of the photo-electric converting element, an output port for allowing external connections, and operating keys for operating the image input device. Furthermore, the image input device may include a diffraction grating for diffracting the reflected light to form an image on the photo-electric converting element and interchangeable lenses having different focal lengths for achieving various magnifications.

56. 发明授权

US06979134B2 Optical communication module 失效
标题翻译：光通信模块
公开(公告)号：US06979134B2
公开(公告)日：2005-12-27
申请号：US09920873
申请日：2001-08-02
申请人： Yorishige Ishii , Toshiyuki Matsushima , Hideaki Fujita , Yoshifumi Iwai , Yukio Kurata , Toshihiro Tamura
发明人： Yorishige Ishii , Toshiyuki Matsushima , Hideaki Fujita , Yoshifumi Iwai , Yukio Kurata , Toshihiro Tamura
IPC分类号： G02B6/26 , G02B6/42 , G02B6/36
CPC分类号： G02B6/262 , G02B6/4292 , G02B6/4296 , G02B2006/4297
摘要： An optical communication module including: an emission member for emitting a transmission light beam; and a connection member for detachably connecting an optical fiber for external communication with the emission member, the connection member including a tubular accommodation part for coaxially receiving and fixing an end of the optical fiber to be connected, wherein the emission member and the connection member are arranged such that the transmission light beam intersects with an optical axis of the optical fiber at a predetermined angle to enter an end face of the optical fiber when the optical fiber is connected and the transmission light beam collides with an inner wall of the accommodation part when the optical fiber is detached.
摘要翻译：一种光通信模块，包括：用于发射透射光束的发射构件; 以及用于可拆卸地连接用于与发射构件进行外部连通的光纤的连接构件，所述连接构件包括用于同轴地接收和固定待连接的光纤的端部的管状容纳部分，其中所述发射构件和连接构件是布置成使得当光纤被连接时，透射光束以预定角度与光纤的光轴相交，以进入光纤的端面，并且传输光束与容纳部分的内壁碰撞时，光纤被分离。

57. 发明申请

US20050031353A1 Optical communication system manufacturing method 失效
标题翻译：光通信系统制造方法
公开(公告)号：US20050031353A1
公开(公告)日：2005-02-10
申请号：US10501186
申请日：2003-04-02
申请人： Yorishige Ishii , Toshihiro Tamura , Tetsuo Iwaki , Yukio Kurata
发明人： Yorishige Ishii , Toshihiro Tamura , Tetsuo Iwaki , Yukio Kurata
IPC分类号： G02B6/42 , H04B10/00 , H04B10/2507 , H04B10/2581 , H04B10/12
CPC分类号： H04B10/25
摘要： A position of a first module (12a) with respect to an optical fiber (11) is determined in accordance with a receiving efficiency at the first module (12a) with respect to light emitted from the optical fiber (11). Power of light coupled into the optical fiber (11) from the first module (12a) is set in accordance with a value of a far-end reflectivity on a side of the first module (12a) in the position so as to satisfy a predetermined formula. By giving priority to determining a condition that significantly influences an improvement of an eye opening ratio, it is possible to manufacture an optical communication system at a low cost and with more freedom in manufacturing. Thus provided is a method of manufacturing an optical communication system, the method allowing for manufacturing an optical communication system at a low cost and with more freedom in manufacturing.
摘要翻译：第一模块（12a）相对于光纤（11）的位置根据第一模块（12a）相对于从光纤（11）发射的光的接收效率来确定。从第一模块（12a）耦合到光纤（11）中的光的功率根据在第一模块（12a）的一侧上的远端反射率的值被设定为满足预定的式。通过优先确定显着影响眼睛开度比的改善的条件，可以以低成本制造光通信系统并且具有更多的制造自由度。因此，提供了一种制造光通信系统的方法，该方法允许以低成本制造光通信系统并且具有更多的制造自由度。

58. 发明授权

US06438089B1 Optical pickup device 有权
标题翻译：光学拾取装置
公开(公告)号：US06438089B1
公开(公告)日：2002-08-20
申请号：US09573626
申请日：2000-05-17
申请人： Kazuya Kitamura , Yukio Kurata , Tetsuo Iwaki
发明人： Kazuya Kitamura , Yukio Kurata , Tetsuo Iwaki
IPC分类号： G11B700
CPC分类号： G11B7/1365 , G11B7/1374 , G11B7/1398 , G11B2007/13727
摘要： In an optical pickup device, the numerical aperture (NA) of an objective lens is set at 0.7 or more, and the ellipticity of polarized light of a light beam which is incident upon the objective lens is set to be larger than (1.4×NA)−0.7. According to the structure, an optical pickup device which can prevent deterioration of the jitter and crosstalk characteristics, for example, due to oval deformation of a beam spot can be provided.
摘要翻译：在光拾取装置中，物镜的数值孔径（NA）设定为0.7以上，入射到物镜的光束的偏振光的椭圆率设定为大于（1.4×NNA） -0.7。根据该结构，可以提供能够防止例如由于光斑的椭圆形变形引起的抖动和串扰特性的劣化的光学拾取装置。

59. 发明授权

US06388822B1 Optical pickup device and optical recording medium 有权
标题翻译：光拾取装置和光记录介质
公开(公告)号：US06388822B1
公开(公告)日：2002-05-14
申请号：US09597652
申请日：2000-06-19
申请人： Kazuya Kitamura , Yukio Kurata , Tetsuo Iwaki
发明人： Kazuya Kitamura , Yukio Kurata , Tetsuo Iwaki
IPC分类号： G02B904
CPC分类号： G11B7/1374 , G02B1/11 , G11B7/13922 , G11B7/1398 , G11B7/24 , G11B2007/13727
摘要： An optical pickup device which includes an objective lens having a numerical aperture of 0.7 or more collects light emitted from a light source and irradiates an optical recording medium. The objective lens and an antireflection film formed thereon are set so that the intensity of light incident on the outermost rim of the objective lens is 45% or more and 80% or less of the intensity of incident light from the light source to the center of the objective lens. According to the configuration, it is possible to provide an optical pickup device including a high NA objective lens which can suppress a reduction in the light amount at the lens rim.
摘要翻译：包括数值孔径为0.7以上的物镜的光学拾取装置收集从光源发射的光并照射光记录介质。在其上形成的物镜和抗反射膜被设定为使得入射在物镜的最外边缘上的光的强度为从光源到中心的入射光强度的45％以上且80％以下物镜。根据该结构，能够提供能够抑制透镜边缘的光量减少的高NA物镜的光拾取装置。

60. 发明授权

US5483508A Optical recording and reproducing apparatus using a hologram to detect and judge a plurality of pit patterns 失效
标题翻译：使用全息图的光学记录和再现装置来检测和判断多个凹坑图案
公开(公告)号：US5483508A
公开(公告)日：1996-01-09
申请号：US163313
申请日：1993-12-08
申请人： Takahiro Miyake , Tetsuo Ueyama , Toshiyuki Tanaka , Yukio Kurata
发明人： Takahiro Miyake , Tetsuo Ueyama , Toshiyuki Tanaka , Yukio Kurata
IPC分类号： G11B7/00 , G11B7/004 , G11B7/0045 , G11B7/005 , G11B7/007 , G11B7/013 , G11B7/135 , G11B7/14 , G11B7/24 , G11B11/10 , G11B11/105 , G11B7/09
CPC分类号： G11B11/10597 , G11B11/10504 , G11B11/10515 , G11B11/10528 , G11B11/10532 , G11B7/0045 , G11B7/005 , G11B7/1353 , G11B7/14 , G11B7/24085
摘要： An optical recording and reproducing apparatus records two rows of a plurality of pit patterns with respect to one track by modulating two light beams and by converging the modulated two light beams in parallel onto the track. The plurality of pit patterns are detected and judged by a multiple hologram on which reflected object waves of all kinds of pit patterns are recorded, thereby enabling to carry out recording of information. With the arrangement, since multiple values recording and reproducing can be carried out with respect to a magneto-optical disk, the recording capacity becomes greater than the conventional case and the reproduced signal having little crosstalk can be obtained according to the present way of reproducing.
摘要翻译：光学记录和再现装置通过调制两个光束并将经调制的两个光束平行地收敛到轨道上来记录相对于一个轨道的两行多个凹坑图案。通过多个全息图检测和判断多个凹坑图案，在该多个全息图上记录了各种凹坑图案的反射对象波，从而能够执行信息的记录。通过该结构，由于可以对磁光盘执行多个值记录和再现，所以记录容量变得比常规情况更大，并且可以根据当前的再现方式获得具有很小串扰的再现信号。

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