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11. 发明授权

US06977780B2 Image exposure device and laser exposure device applied thereto 失效
标题翻译：图像曝光装置和应用于其的激光曝光装置
公开(公告)号：US06977780B2
公开(公告)日：2005-12-20
申请号：US10329762
申请日：2002-12-27
申请人： Kenji Matsumoto , Toshiro Hayakawa , Yoshinori Morimoto , Kiichi Kato
发明人： Kenji Matsumoto , Toshiro Hayakawa , Yoshinori Morimoto , Kiichi Kato
IPC分类号： G03B27/42 , G02B13/18
CPC分类号： G03B27/42
摘要： When a ratio R between a total angle φ of a widening angle in a median intensity of light of a light source (a GaN based semiconductor laser) and a total angle 2/φ of a widening angle of light defining a numerical aperture NA of a collimator optical system (collimator lens) is defined as R=(sin−1NA)×2/φ, the numerical aperture of the collimator optical system (collimator lens) is set so that 2.0≧R≧0.58. Thus, an image exposure device is provided that can suppress stray light of a light source that emits a large amount of stray light.
摘要翻译：当光源（GaN基半导体激光器）的中值光强度中的加宽角的总角度φi与限定数值孔径NA的光的加宽角的总角度2 / phi之间的比率R 准直器光学系统（准直透镜）被定义为R =（sin -1）NA）×2 / phi，准直器光学系统（准直透镜）的数值孔径被设定为使得2.0> = R> = 0.58。因此，提供能够抑制发出大量杂散光的光源的杂散光的图像曝光装置。

12. 发明授权

US06314120B1 Semiconductor laser pumped solid state laser 失效
标题翻译：半导体激光泵浦固态激光器
公开(公告)号：US06314120B1
公开(公告)日：2001-11-06
申请号：US09330012
申请日：1999-06-11
申请人： Hisashi Ohtsuka , Kiichi Kato , Yoji Okazaki
发明人： Hisashi Ohtsuka , Kiichi Kato , Yoji Okazaki
IPC分类号： H01S3093
CPC分类号： H01S3/09415 , H01S3/1611
摘要： A semiconductor laser pumped solid state laser includes a solid laser medium, a semiconductor laser which radiates a pumping laser beam for pumping the solid laser medium, and a light entrance optical system which converges the pumping laser beam in the solid laser medium. The semiconductor laser is disposed with its beam radiating axis inclined to the optical axis of the light entrance optical system so that the pumping laser beam travelling from the semiconductor laser to the solid laser medium and a laser beam reflected at the pumping light inlet side end face of the solid laser medium travel different optical paths. A light-shielding plate which intercepts the laser beam reflected at the pumping light inlet side end face of the solid laser medium is provided between the semiconductor laser and the solid laser medium.
摘要翻译：半导体激光泵浦固体激光器包括固体激光介质，辐射用于泵浦固体激光介质的泵浦激光束的半导体激光器和将激光束聚焦在固体激光介质中的光入射光学系统。半导体激光器被设置成其辐射轴线相对于光入射光学系统的光轴倾斜，使得从半导体激光器传播到固体激光介质的激光束和在泵浦光入口侧端面反射的激光束的固体激光介质行进不同的光路。在半导体激光器和固体激光介质之间设置有截止在激光介质的激光入射侧端面反射的激光束的遮光板。

13. 发明授权

US4621352A Optical memory device 失效
标题翻译：光存储设备
公开(公告)号：US4621352A
公开(公告)日：1986-11-04
申请号：US746459
申请日：1985-06-19
申请人： Kiichi Kato
发明人： Kiichi Kato
IPC分类号： G11B7/135 , G11B7/0045 , G11B27/36 , G11B7/00
CPC分类号： G11B7/0045 , G11B27/36
摘要： An optical memory device comprises a modulator for modulating a laser beam in accordance with recording data, an objective lens for focusing the output laser beam from the modulator on a recording medium, a photosensor arranged at the conjugate position with the focal point of the objective lens, and a judging circuit for detecting erroneous writing in accordance with an output from the photosensor and a source of the recording data. The photosensor is divided into first and second segments by a line which is perpendicular to a direction corresponding to relative movement of the focused light beam on the recording medium. The difference signal between the outputs from the first and second segments is supplied to the judging circuit.
摘要翻译：光学存储器件包括用于根据记录数据调制激光束的调制器，用于将来自调制器的输出激光束聚焦在记录介质上的物镜，布置在与物镜的焦点在共轭位置处的光电传感器以及用于根据光传感器的输出和记录数据的源检测错误写入的判断电路。光传感器通过垂直于与聚焦光束在记录介质上的相对移动相对应的方向的线分成第一和第二段。来自第一和第二段的输出之间的差分信号被提供给判断电路。

14. 发明授权

US4607359A Optical recording/reproducing apparatus 失效
标题翻译：光记录/重放装置
公开(公告)号：US4607359A
公开(公告)日：1986-08-19
申请号：US575045
申请日：1984-01-30
申请人： Nobuhide Matsubayashi , Kiichi Kato , Masaharu Sakamoto
发明人： Nobuhide Matsubayashi , Kiichi Kato , Masaharu Sakamoto
IPC分类号： G11B7/135 , G11B7/09 , G11B7/12 , G11B7/125 , G11B7/1359 , G11B7/1378 , G11B7/1381 , G11B7/08
CPC分类号： G11B7/0903 , G11B7/1359 , G11B7/1378 , G11B7/1381
摘要： An optical recording/reproducing apparatus has a beam emitting device adapted to emit at least two light beams in directions at a minute angle to each other. The light beams are condensed by a condensing member onto slightly separated two points on a disk and reflected by the disk. The light beams from the disk are polarized to a prism by a polarizing device. The prism refracts the light beams from the polarizing device, thereby increasing the relative angle between the light beams. The refracted light beams are converged by a converging lens on a detector.
摘要翻译：光学记录/再现装置具有适于在至少两个彼此以小角度的方向发射的光束的发射装置。光束被聚光部件聚集在盘上略微分开的两个点上，并被光盘反射。来自盘的光束通过偏振装置偏振到棱镜。棱镜折射来自偏振装置的光束，从而增加光束之间的相对角度。折射光束被会聚透镜会聚在检测器上。

15. 发明授权

US4464050A Apparatus for detecting optically defects 失效
标题翻译：用于检测光学缺陷的设备
公开(公告)号：US4464050A
公开(公告)日：1984-08-07
申请号：US345153
申请日：1982-02-02
申请人： Kiichi Kato , Masaharu Sakamoto , Shoji Yoshikawa , Kunio Yamamiya , Hiroshi Kodama , Ken Ohsima
发明人： Kiichi Kato , Masaharu Sakamoto , Shoji Yoshikawa , Kunio Yamamiya , Hiroshi Kodama , Ken Ohsima
IPC分类号： G01N21/88 , G01N21/95 , G01N21/956 , G11B7/0037 , G11B7/26 , H01L21/66
CPC分类号： G11B7/00375 , G01N21/9506
摘要： An apparatus for detecting optically defects in object such as original glass disc for use in manufacturing video and audio discs by projecting a laser light flux onto the object includes an objective lens for focussing the incident laser light flux onto the object as a small light spot, the laser light flux passing through the objective lens at only its central portion. When the object has no defect in the light spot area, the laser light flux is regularly reflected by the object surface, but when the object includes a defect in the light spot area, the light flux is scattered by the defect. The directly reflected and scattered light fluxes are collected by the objective lens and are then separated from each other by means of a small mirror arranged in an optical axis of the directly reflected light flux. The directly reflected and scattered light fluxes thus separated are received by first and second light detectors. A cylindrical lens is inserted between the small mirror and the first light detector having four divided light receiving regions. The objective lens is driven into an in-focussed position under the control of a focussing error signal which is derived by processing output signals from the four divided light receiving regions. A defect signal is derived by processing output signals supplied from the first and second light detectors.
摘要翻译：用于通过将激光光束投射到物体上来制造视频和音频盘的用于检测用于制造视频和音频盘的原始玻璃盘的物体的光学缺陷的装置包括：用于将入射的激光光束聚焦到物体上作为小光斑的物镜，激光光束仅在其中心部分通过物镜。当物体在光斑区域没有缺陷时，激光光束被物体表面规则地反射，但是当物体包含光斑区域的缺陷时，光通量被缺陷散射。直接反射和散射的光束由物镜收集，然后通过布置在直射反射光束的光轴上的小反射镜彼此分离。这样分离的直接反射和散射的光束被第一和第二光检测器接收。在具有四个分开的光接收区域的小反射镜和第一光检测器之间插入柱面透镜。在通过处理来自四个分开的光接收区域的输出信号导出的聚焦误差信号的控制下，物镜被驱动到聚焦位置。通过处理从第一和第二光检测器提供的输出信号来导出缺陷信号。

16. 发明授权

US4455085A Method and apparatus for detecting a focussing condition of an objective lens 失效
标题翻译：用于检测物镜的聚焦状态的方法和装置
公开(公告)号：US4455085A
公开(公告)日：1984-06-19
申请号：US292930
申请日：1981-08-14
申请人： Kiichi Kato , Kenichi Ito , Tohru Musha
发明人： Kiichi Kato , Kenichi Ito , Tohru Musha
IPC分类号： G02B7/28 , G11B7/09 , G01J1/36
CPC分类号： G11B7/0908 , G11B7/0917 , G11B2007/0919
摘要： A method and apparatus for detecting a focussing error signal of an objective lens with respect to a video disc on which a light beam emitted from a laser light source is to be focussed as a light spot by the objective lens. A light flux reflected by the video disc is made incident upon a detection prism surface which is set substantially at a critical angle with respect to a central light ray in the reflected light flux, and two light fluxes which situate on respective sides of a boundary plane including the central light ray and perpendicular to a plane of incidence, and are reflected by the reflection surface are separately received by two light receiving regions which are divided along a boundary plane including the central light ray reflected by the reflection surface and perpendicular to the plane of incidence. The focussing error signal is derived as a difference between output signals from the two light receiving regions. A relay lens is arranged between the reflection surface of the detection prism and the light receiving regions and the relay lens forms an image of a pupil of the objective lens on the light receiving regions.
摘要翻译：一种用于检测物镜相对于其上从激光光源发射的光束被物镜聚焦为光点的视盘的聚焦误差信号的方法和装置。由视频盘反射的光束入射到相对于反射光束中的中心光线基本上设定在临界角的检测棱镜表面上，并且位于边界平面的各个侧面上的两个光束包括中心光线并且垂直于入射平面并且由反射表面反射的两个光接收区域被沿着包括由反射表面反射并垂直于平面的中心光线的边界平面划分的两个光接收区域分开地接收的发病率。聚焦误差信号被导出为来自两个光接收区域的输出信号之间的差。中继透镜配置在检测棱镜的反射面和受光区域之间，中继透镜在受光区域形成物镜的光瞳图像。

17. 发明授权

US4451863A Information reproducing apparatus based on opto-magnetic effect 失效
标题翻译：基于光磁效应的信息再生装置
公开(公告)号：US4451863A
公开(公告)日：1984-05-29
申请号：US352525
申请日：1982-02-26
申请人： Tuneo Yanagida , Kiichi Kato
发明人： Tuneo Yanagida , Kiichi Kato
IPC分类号： G06K7/08 , G06K7/10 , G11B11/10 , G11B11/105 , G11B5/32 , G11B7/00
CPC分类号： G11B11/10543 , G11B11/10515
摘要： An information reproducing apparatus for reproducing information recorded on a record medium based on an opto-magnetic effect is disclosed. A laser light source, a first polarizing beam splitter, a first Faraday element, a second polarizing beam splitter, an optical member having a second Faraday element or a rotatory polarizer, and first and second photodetectors, which elements are positioned along an optical axis in the described order. The angle between the polarizing axis of the first beam splitter and the polarizing axis of the second beam splitter is made .pi./4 and Faraday elements rotate the polarizing direction of the light beam therethrough. The first photodetector receives the laser beam reflected by the record medium and the second beam splitter and the second photodetector receives the laser beam reflected by the record medium, transmitted through the second beam splitter and reflected by the first beam splitter.
摘要翻译：公开了一种用于再现基于光磁效应记录在记录介质上的信息的信息再现装置。激光源，第一偏振分束器，第一法拉第元件，第二偏振分束器，具有第二法拉第元件或旋转偏振器的光学元件，以及第一和第二光电检测器，所述元件沿着光轴定位描述的顺序。第一分束器的偏振轴与第二分束器的偏振轴之间的角度为π/ 4，法拉第元件使光束的偏振方向通过其旋转。第一光电检测器接收由记录介质反射的激光束，第二光束分离器和第二光电检测器接收由记录介质反射的激光束，透射通过第二分束器并被第一分束器反射。

18. 发明授权

US07705992B2 Optical coherence tomography system 失效
标题翻译：光学相干断层扫描系统
公开(公告)号：US07705992B2
公开(公告)日：2010-04-27
申请号：US11839139
申请日：2007-08-15
申请人： Masami Hatori , Kiichi Kato
发明人： Masami Hatori , Kiichi Kato
IPC分类号： G01B9/02 , G01B11/02
CPC分类号： G01B9/02004 , G01B9/02003 , G01B9/02044 , G01B9/02091 , G01B2290/45 , G01B2290/70
摘要： A polarization maintaining optical fiber, for guiding a measuring light beam, is provided within a probe. The probe is configured to be rotatable in the circumferential direction of the polarization maintaining optical fiber. A polarization direction rotator, for rotating the polarization direction of the measuring light beam that enters the polarization maintaining optical fiber accompanying rotation of the probe, is provided in order to maintain a state in which the polarization direction of the measuring light beam that enters the polarization maintaining optical fiber and the direction of the polarization axis of the polarization maintaining optical fiber are matched.
摘要翻译：在探针内设置用于引导测量光束的偏振保持光纤。探针构造成能够在偏振保持光纤的圆周方向上旋转。为了保持进入极化的测量光的偏振方向的状态，提供了用于旋转进入与探头的旋转相关的偏振保持光纤的测量光束的偏振方向的偏振方向旋转体保持光纤和偏振保持光纤的偏振轴的方向相匹配。

19. 发明申请

US20090190883A1 OCT PROBE 有权
标题翻译： OCT探索
公开(公告)号：US20090190883A1
公开(公告)日：2009-07-30
申请号：US12361105
申请日：2009-01-28
申请人： Kiichi Kato , Yoshinori Morimoto , Hiroshi Yamazaki , Masahiro Saito
发明人： Kiichi Kato , Yoshinori Morimoto , Hiroshi Yamazaki , Masahiro Saito
IPC分类号： G02B6/32
CPC分类号： G02B6/327 , A61B5/0066 , A61B5/0073 , A61B5/6852 , G01N21/4795 , G02B6/2552
摘要： An OCT probe has a sheath to be inserted into a subject; and an optical system within the sheath, for changing the direction of light which propagates from a light source through an optical fiber to irradiate the light onto the subject through a transparent portion of the sheath, and for reflecting the light beam, which is reflected by the subject, to guide the light into the optical fiber. A light output surface, for causing the light to be output from the reflecting surface in a direction obliquely inclined with respect to the inner surface of the sheath, and a reflected light sheath entrance preventing portion, for preventing light reflected by the inner surface of the sheath from entering the optical fiber, are provided in the optical system. The reflected light sheath entrance preventing portion may be formed by providing a cut planar surface portion on the lens.
摘要翻译： OCT探针具有插入受试者的护套; 以及在护套内的光学系统，用于改变从光源通过光纤传播的光的方向，以通过护套的透明部分将光照射到被摄体上，并且用于反射由光束反射的光束将光线引导到光纤中。一个光输出表面，用于使光从相对于护套的内表面倾斜倾斜的方向从反射表面输出，反射光线入口防止部分，用于防止光的内表面反射的光护套进入光纤，设置在光学系统中。可以通过在透镜上设置切割的平坦表面部分来形成反射光线入射防止部分。

20. 发明授权

US07095430B2 Image exposing apparatus and image exposing method 失效
公开(公告)号：US07095430B2
公开(公告)日：2006-08-22
申请号：US10328179
申请日：2002-12-26
申请人： Kiichi Kato , Yoshinori Morimoto , Kenji Matsumoto , Toshiro Hayakawa
发明人： Kiichi Kato , Yoshinori Morimoto , Kenji Matsumoto , Toshiro Hayakawa
IPC分类号： B41J2/435
CPC分类号： H04N1/40025
摘要： In an image exposing apparatus and an image exposing method, a deterioration of an image quality caused by stray light is suppressed, while both a sensitive level and a non-sensitive level are properly set in accordance with a type of photosensitive material. In the image exposing apparatus, a recording level setting unit calculates a recording level corresponding to a light amount level stored in a recording level light amount memory and sets the calculated recording level. A non-recording level setting unit calculates a non-recording level from an extinction ratio, which corresponds to a type of photosensitive material stored in a photosensitive material information memory, and the recording level. An output voltage setting unit sets an output voltage such that a detected voltage becomes equal to one of the recording level and the non-recording level.

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