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    • 4. 发明授权
    • Optical pick-up system with improved light-convergence construction
    • 光拾取系统具有改进的聚光结构
    • US5487058A
    • 1996-01-23
    • US191321
    • 1994-02-02
    • Junichi Kitabayashi
    • Junichi Kitabayashi
    • G11B7/13G11B7/135
    • G11B7/131G11B7/1372
    • An objective lens causes light emitted from the light source to converged onto an optical recording medium. A beam splitter separates light, reflected from the optical recording medium, from the bundle of rays emitted from the light source. A detective lens causes the light separated by means of the beam splitter to be converged. A detective photosensitive element is disposed at a position at which the light converged by means of the detective lens approximately converges. The detective lens has a first and second surfaces. The first surface faces the beam splitter and is formed to be convex so as to cause the bundle of rays to converge. The second surface comprises two surfaces which are combined with one another so that the line of intersection, formed where the two surfaces meet, does not intersect the axis associated with the convexity of the first surface.
    • 物镜使从光源发出的光会聚在光记录介质上。 分束器将从光记录介质反射的光从光源发射的光束分离开。 检测镜头使通过分束器分离的光会聚。 检测感光元件设置在通过检测透镜会聚的光近似收敛的位置处。 侦探镜头具有第一和第二表面。 第一表面面向分束器并且被形成为凸起的,从而使光束束会聚。 第二表面包括彼此组合的两个表面,使得形成在两个表面相交处的交叉线不与第一表面的凸起相关的轴线相交。
    • 6. 发明授权
    • Optical information recording/reproducing apparatus
    • 光信息记录/重放装置
    • US5101389A
    • 1992-03-31
    • US561782
    • 1990-08-02
    • Shigeru OhuchidaJunichi KitabayashiHideo Maeda
    • Shigeru OhuchidaJunichi KitabayashiHideo Maeda
    • G11B7/135G11B11/105
    • G11B7/1359G11B11/10543G11B11/10576G11B7/1353G11B7/1362
    • An optical information recording/reproducing apparatus comprises a semi-reflecting means which receives a emitted laser light emitted from a light source, which reflect partially the received laser light toward an optical information recording medium in order to record an information, and which transmits a reflected laser light reflected by the optical information recording medium, a separating means which has the semi-reflecting means on one surface thereof, which diffracts a part of the transmitted laser light, transmits the other part of the transmitted laser light, and then subsequently diffracts said diffracted light again to produce twice diffracted light and transmits said transmitted light again to produce twice transmitted light, and a detecting means which detects the diffracted laser light and the transmitted laser light to thereby generate an information reproduction signal, a track error signal and a focus error signal.
    • 一种光学信息记录/再现装置,包括半反射装置,其接收从光源发射的发射的激光,其部分地将接收到的激光反射向光学信息记录介质以记录信息,并且将反射 由光学信息记录介质反射的激光,在其一个表面上具有衍射一部分透射的激光的半反射装置的透射激光的另一部分的分离装置,然后衍射所述 再次产生衍射光以产生两次衍射光并再次透射所述透射光以产生两次透射光;以及检测装置,其检测衍射激光和透射的激光,从而产生信息再现信号,轨道误差信号和焦点 误差信号。
    • 7. 发明授权
    • Parallel image processing apparatus using edge detection layer
    • 并行图像处理装置采用边缘检测层
    • US5144684A
    • 1992-09-01
    • US501806
    • 1990-03-30
    • Toshio InadaYukio OguraJunichi Kitabayashi
    • Toshio InadaYukio OguraJunichi Kitabayashi
    • H04N1/40H04N1/409
    • H04N1/40062H04N1/4092
    • A parallel image processing apparatus includes (1) a light diffusing layer, (2) a photoelectric conversion layer which receives diffused light from the diffusion layer, and (3) an edge detection layer which receives signals from conversion elements in the conversion layer, and generates edge information which defines the edge of object(s) imaged on the light diffusing layer. The conversion layer includes pairs of conversion elements, the pairs having a center element and a peripheral element surrounding it. Signals from one or more center elements are summed, the sum being differentially amplified with a sum of signals from one or more peripheral elements to arrive at an edge signal. Edge signals may be used to differentiate among characters, pictures or photographs, and a blank images.
    • 并行图像处理装置包括:(1)光漫射层,(2)从扩散层接收漫射光的光电转换层,以及(3)从转换层中的转换元件接收信号的边缘检测层, 产生限定在光漫射层上成像的物体的边缘的边缘信息。 转换层包括成对的转换元件,该对具有中心元件和围绕它的外围元件。 来自一个或多个中心元件的信号被相加,该和被以来自一个或多个外围元件的信号之和进行差分放大以得到边缘信号。 边缘信号可用于区分字符,图片或照片以及空白图像。
    • 9. 发明授权
    • Focusing method for interferometer
    • 干涉仪聚焦方法
    • US4653923A
    • 1987-03-31
    • US683714
    • 1984-12-19
    • Junichi Kitabayashi
    • Junichi Kitabayashi
    • G02B7/28G01B9/02
    • G01M11/0271G01B9/0203G01B9/02038G01B9/02063G01M11/025
    • A focusing method for interferometer wherein a light flux passing through a converter lens for converting the shape of wave fronts is caused to be incident on a tested surface and a testing light beam reflected by the tested surface is caused to be incident on a light receiving element capable of measuring the distribution of intensity of the light at least one-dimensionally. The tested surface is moved in the direction of its center axis until it reaches a position in which the vertex of the tested surface coincides with the focus of the converter lens and the output of the light receiving element shows a peak value, and the tested surface is further moved, from the position referred to hereinabove which serves as a reference position, in the direction of its center axis.
    • 一种用于干涉仪的聚焦方法,其中使通过用于转换波前形状的转换器透镜的光通量入射到测试表面上,并且使被测试表面反射的测试光束入射到受光元件 能够至少一维地测量光的强度分布。 测试表面沿着其中心轴线的方向移动,直到其达到测试表面的顶点与转换器透镜的焦点重合的位置,并且光​​接收元件的输出显示峰值,并且测试表面 从作为基准位置的上述位置沿其中心轴线的方向进一步移动。