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1. 发明授权

US07423761B2 Light source apparatus and optical tomography imaging apparatus 有权
标题翻译：光源装置和光学层析成像装置
公开(公告)号：US07423761B2
公开(公告)日：2008-09-09
申请号：US11651959
申请日：2007-01-11
申请人： Yuichi Teramura , Kiichi Kato
发明人： Yuichi Teramura , Kiichi Kato
IPC分类号： G01B9/02
CPC分类号： G01B9/02091 , G01B9/02044 , G01B2290/70
摘要： A light source apparatus is equipped with at least three light sources each having a predetermined wavelength interval and different central wavelengths. At least one multiplexing means having wavelength selectivity, for multiplexing light emitted from each of a first group and a second group of the light sources is provided, the first group of light sources including odd ordered light sources and the second group of light sources including even ordered light sources when counted in order of lengths of the central wavelengths thereof. Multiplexing means not having wavelength selectivity, for multiplexing light emitted from the first group of light sources and the second group of light sources is also provided.
摘要翻译：光源装置配备有至少三个光源，每个光源具有预定的波长间隔和不同的中心波长。至少一个多路复用装置具有波长选择性，用于多路复用从第一组和第二组光源发出的光，第一组光源包括奇数有序光源，第二组光源包括均匀的当按照其中心波长的长度的顺序计数有序的光源。复用意味着不具有波长选择性，用于复用从第一组光源发射的光和第二组光源。

2. 发明授权

US07226175B2 Image exposure device and laser exposure device applied thereto 有权
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：US07226175B2
公开(公告)日：2007-06-05
申请号：US11142254
申请日：2005-06-02
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： G02B27/00
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。

3. 发明申请

US20050218413A1 Image exposure device and laser exposure device applied thereto 有权
公开(公告)号：US20050218413A1
公开(公告)日：2005-10-06
申请号：US11142254
申请日：2005-06-02
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 , H01L33/00
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.

4. 发明授权

US4682311A Photomagnetic differential reproducing system 失效
标题翻译：光磁差分再现系统
公开(公告)号：US4682311A
公开(公告)日：1987-07-21
申请号：US823559
申请日：1986-01-29
申请人： Nobuhide Matsubayashi , Kiichi Kato
发明人： Nobuhide Matsubayashi , Kiichi Kato
IPC分类号： G11B11/10 , G11B11/105 , G11B11/00
CPC分类号： G11B11/10532
摘要： A linearly polarized light is projected upon a recording medium of a photomagnetic type; the reflected light is rotated by an appropriate angle through a halfwave plate and split into a reflected light and a transmitted light through a beam splitter having reflection factors of 0 or 100% for p- or s-polarized light in such a way that the beam splitter functions as an analyzer for one of the reflected and transmitted lights. The other of the reflected and transmitted lights is passed through an analyzer. The two lights passed through the beam splitter and the analyzer are detected by two photodetectors separately and applied to a differential amplifier to generate a reproduction signal of high S/N ratio without the use of a half mirror R.sub.p =R.sub.s =50% which is very difficult to manufacture.
摘要翻译：线偏振光投影在光磁型记录介质上; 反射光通过半波片旋转适当的角度，并且通过分光镜分离成反射光和透射光，该分束器对于p-偏振光或S偏振光具有0或100％的反射因子，使得光束分离器用作反射和透射光之一的分析仪。反射和透射的另一个光通过分析仪。两个光通过分束器，分析仪分别由两个光电检测器检测，并应用于差分放大器以产生高S / N比的再现信号，而不使用半反射镜Rp = Rs = 50％难以制造

5. 发明授权

US4520280A Apparatus for detecting input signal 失效
标题翻译：用于检测输入信号的装置
公开(公告)号：US4520280A
公开(公告)日：1985-05-28
申请号：US406487
申请日：1982-08-09
申请人： Shozi Yoshikawa , Hiroshi Kodama , Ken Ohsima , Masaharu Sakamoto , Kiichi Kato , Kunio Yamamiya
发明人： Shozi Yoshikawa , Hiroshi Kodama , Ken Ohsima , Masaharu Sakamoto , Kiichi Kato , Kunio Yamamiya
IPC分类号： H03K5/08 , H03K5/153
CPC分类号： H03K5/082
摘要： An input signal containing a base line which fluctuates to a great extent is detected or restored by comparing the input signal with reference levels which are shifted in accordance with the fluctuation of base line. The input signal is sampled at a variable sampling rate and an average of sampled values for a predetermined period is derived to produce a profile signal which resembles accurately the fluctuation of the base line. The profile signal thus obtained is added to upper and lower threshold voltages to produce the reference levels which have been corrected in accordance with the fluctuation of the base line of input signal.
摘要翻译：通过将输入信号与根据基线的波动偏移的参考电平进行比较来检测或恢复包含大幅波动的基线的输入信号。以可变采样率对输入信号进行采样，得到预定周期的采样值的平均值，以产生类似于基线波动的分布信号。由此获得的轮廓信号被加到上限和下限阈值电压上，以产生已经根据输入信号的基线的波动校正的基准电平。

6. 发明授权

US4499572A Method for reading information or defect out of rotating disc 失效
标题翻译：用于读取信息或从旋转盘中缺陷的方法
公开(公告)号：US4499572A
公开(公告)日：1985-02-12
申请号：US402075
申请日：1982-07-26
申请人： Shozi Yoshikawa , Masaharu Sakamoto , Hiroshi Kodama , Kunio Yamamiya , Kiichi Kato , Ken Ohsima
发明人： Shozi Yoshikawa , Masaharu Sakamoto , Hiroshi Kodama , Kunio Yamamiya , Kiichi Kato , Ken Ohsima
IPC分类号： G11B5/012 , G01N21/95 , G11B7/0037 , G11B7/013 , G11B20/08 , G11B20/10 , G11B27/36 , G11B7/00
CPC分类号： G11B27/36 , G01N21/9506 , G11B20/08 , G11B20/10 , G11B7/00375 , G11B7/013
摘要： In order to read out information recorded on a disc rotating at a constant angular velocity by means of a pick-up head movably arranged in a disc radius direction, a head position on the disc is detected to obtain a position signal representing a distance from a disc center to the pick-up head, and then a pulse signal having a frequency corresponding to the position signal thus obtained is generated. A detection signal supplied from the pick-up head and the pulse signal are supplied to an AND gate and pulses of the gated out pulse signal are counted by a counter. The number of the counted pulses represents correctly a length of the information recorded on the disc irrespective of position of the information on the disc.
摘要翻译：为了通过可移动地以盘半径方向布置的拾取头读出记录在以恒定角速度旋转的盘上的信息，检测盘上的头位置以获得表示距离光盘中心到拾取头，然后产生具有与如此获得的位置信号相对应的频率的脉冲信号。从拾取头提供的检测信号和脉冲信号被提供给与门，门控脉冲信号的脉冲由计数器计数。计数脉冲的数量正好表示记录在盘上的信息的长度，而与盘上的信息的位置无关。

7. 发明授权

US4495407A System for focusing an optical head onto a flat surface 失效
标题翻译：用于将光学头聚焦到平坦表面上的系统
公开(公告)号：US4495407A
公开(公告)日：1985-01-22
申请号：US362613
申请日：1982-03-29
申请人： Hiroshi Kodama , Masaharu Sakamoto , Ken Ohshima , Shoji Yoshikawa , Kunio Yamamiya , Kiichi Kato
发明人： Hiroshi Kodama , Masaharu Sakamoto , Ken Ohshima , Shoji Yoshikawa , Kunio Yamamiya , Kiichi Kato
IPC分类号： G02B7/00 , G02B7/32 , G11B7/085 , G11B7/09 , G01J1/20
CPC分类号： G11B7/08511 , G02B7/32 , G11B7/0908
摘要： A system for focusing an optical head onto a flat surface has a mechanism for moving the optical head in the direction of the optical axis of the head and a mechanism for moving an objective lens in the optical head in the direction of the optical axis of the lens. A laser beam projected from the objective lens of the optical head is reflected on the flat surface, is reflected on the beam splitter, and is introduced into a detector unit. The detector unit thus generates a focusing signal having a level responsive to the distance between the objective lens and the surface. The optical head is lowered by the mechanism for moving the optical head in accordance with the focusing signal when it passes a predetermined point, and is operated to locate the focal point of the objective lens on the surface. Thereafter, the mechanism for moving the optical head becomes inoperative, and the mechanism for moving the objective lens is operated. This mechanism operates in accordance with the focusing signal and locates the focal point of the objective lens always on the surface.
摘要翻译：用于将光学头聚焦到平坦表面上的系统具有用于沿着光头的光轴方向移动光学头的机构，以及用于沿光学头的光轴方向移动光学头中的物镜的机构镜片。从光头的物镜投射的激光束在平坦表面上反射，在分束器上被反射，并被引入到检测器单元中。因此，检测器单元产生具有响应物镜与表面之间距离的电平的聚焦信号。通过用于在通过预定点时根据聚焦信号移动光学头的机构降低光学头，并且操作以将物镜的焦点定位在表面上。此后，用于移动光学头的机构变得不起作用，并且用于移动物镜的机构被操作。该机构根据聚焦信号进行操作，并将物镜的焦点始终位于表面上。

8. 发明授权

US4423495A Method and apparatus for recording optically an information signal on a record medium along tracks 失效
标题翻译：在记录介质上光学地记录信息信号的方法和装置
公开(公告)号：US4423495A
公开(公告)日：1983-12-27
申请号：US301098
申请日：1981-09-10
申请人： Tohru Musha , Kiichi Kato , Kenichi Ito
发明人： Tohru Musha , Kiichi Kato , Kenichi Ito
IPC分类号： G02B7/28 , G11B7/09 , G11B7/12 , G11B7/125 , G11B7/135 , G11B7/1359 , G11B11/105 , G11B7/00
CPC分类号： G11B7/0917 , G11B11/10506 , G11B11/10536 , G11B11/10576 , G11B7/0941 , G11B7/12 , G11B7/1359 , G11B2007/0919 , G11B7/0903
摘要： In a method and apparatus of recording optically an information signal on a disc along tracks by projecting a main beam modulated with the information signal onto the rotating disc by means of an objective lens, in order to obtain focussing and tracking error signals, a sub beam inclined with respect to the main beam is also projected onto the disc by means of the objective lens. The main and sub beams reflected by the video disc are made incident as parallel light fluxes upon a detection prism surface which is set substantially at a critical angle with respect to the main beam, but at an angle smaller or larger than the critical angle with respect to the sub beam, and two light fluxes of the reflected main beam 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 main beam 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. The sub beam transmitted through and refracted by the reflection surface is received by a light detector and the tracking error signal is derived by detecting a variation in a light amount of the sub beam impinging upon the light detector.
摘要翻译：在利用物镜将通过信息信号调制的主波束投射到旋转盘上的光盘上将信息信号光学记录在光盘上的方法和装置中，为了获得聚焦和跟踪误差信号，相对于主光束倾斜也通过物镜投影到光盘上。由视频盘反射的主光束和副光束作为平行光束入射到检测棱镜表面上，该检测棱镜表面基本上被设置为相对于主光束的临界角，但是以相对于主光束的临界角小于或大于并且反射主光束的两个光束位于包括中心光线并且垂直于入射平面的边界平面的相应侧上并被反射表面反射的两个光束分别被两个光接收沿着包括由反射面反射并垂直于入射平面的主光束的边界平面分割的区域。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。由光检测器接收透射并被反射面折射的子光束，并且通过检测入射到光检测器上的子光束的光量的变化导出跟踪误差信号。

9. 发明申请

US20070077045A1 Optical tomography system 失效
标题翻译：光学断层扫描系统
公开(公告)号：US20070077045A1
公开(公告)日：2007-04-05
申请号：US11529437
申请日：2006-09-29
申请人： Kiichi Kato
发明人： Kiichi Kato
IPC分类号： A61B1/04
CPC分类号： A61B5/0073 , A61B5/0066 , G01B9/02003 , G01B9/02004 , G01B9/02029 , G01B9/02044 , G01B9/0205 , G01B9/02068 , G01B9/02091 , G01N21/45 , G01N21/4795 , G01N2021/1787
摘要： Light emitted from the light source unit divided into measuring light and reference light. An optical path length of the measuring light or the reference light is adjusted and a probe guides the measuring light to an object. The reflected light from the object when the measuring light is projected onto the object and the reference light are multiplexed. Interference light of the reflected light and the reference light which have been multiplexed is detected, and a tomographic image of the object is obtained on the basis of the interference light. The probe is provided with a distance measuring circuit for measuring the distance from the probe to the object, and the optical path length of the measuring light or the reference light is adjusted by the use of the distance to the object measured by the distance measuring circuit to adjust the tomographic image obtainment initiating position.
摘要翻译：从光源单元发射的光分为测量光和参考光。测量光或参考光的光程长度被调节，并且探针将测量光引导到物体上。当将测量光投射到物体上时来自物体的反射光和参考光被复用。检测已被多路复用的反射光和参考光的干涉光，并根据干涉光获得目标的断层图像。探头设置有用于测量从探针到物体的距离的距离测量电路，并且通过使用距离测量电路测量到的物体的距离来调节测量光或参考光的光程长度调整断层图像获取起始位置。

10. 发明申请

US20060262408A1 Linear light beam generating optical system 失效
标题翻译：线性光束产生光学系统
公开(公告)号：US20060262408A1
公开(公告)日：2006-11-23
申请号：US11438310
申请日：2006-05-23
申请人： Kiichi Kato
发明人： Kiichi Kato
IPC分类号： G02B27/10
CPC分类号： G02B27/0994 , G02B27/0905
摘要： An optical system includes semiconductor lasers arranged in the direction of the slow axis of the laser beam, an optical means which makes parallel the collimated laser beams, an optical member which is provided with inlet and outlet faces which are positioned in perpendicular to the optical axis of laser beams and total reflection surfaces which are opposed to each other at a space where the component in the direction of the slow axis of the laser beam entering from the light inlet face repeats internal reflection, and emits from the light outlet face a slow axis uniform laser beam, and an imaging optical means which images the slow axis uniform laser beam on a surface as a linear line beam extending in the direction of the slow axis.
摘要翻译：光学系统包括沿着激光束的慢轴方向布置的半导体激光器，使平行于准直激光束的光学装置，设置有入射面和出射面的光学部件，该入口和出射面垂直于光轴在从光入射面进入的激光束的慢轴方向的分量重复内反射的空间处相对的激光束和全反射面反射，从光出射面发射慢轴以及成像光学装置，其将表面上的慢轴均匀激光束成像为沿慢轴方向延伸的线性线束。

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