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    • 91. 发明授权
    • Three-dimensional shape measurement system
    • 三维形状测量系统
    • US5353073A
    • 1994-10-04
    • US945672
    • 1992-09-16
    • Koji Kobayashi
    • Koji Kobayashi
    • A61B3/12G01B11/24G01B21/20A61B3/10
    • G01B11/24A61B3/1025
    • A three-dimensional shape measurement system produces three-dimensional information of an object, such as an eye fundus, by directing light onto the object, receiving the light reflected from the object, photoelectrically converting the received light and processing the electric signal. The system includes laser beam control circuitry for focal point shifting in the direction of the optical axis, and a pair of detectors for detecting variation in the focal position of the light reflected from the object and deriving information respecting the shape of the object in the direction of the optical axis. Signal processing circuitry drives the laser beam control circuitry to produce a focused condition and adjusts the output signals of the detectors to a prescribed state.
    • 三维形状测量系统通过将光引导到物体上,接收从物体反射的光,对接收到的光进行光电转换并处理电信号,从而产生诸如眼底的物体的三维信息。 该系统包括用于在光轴方向上进行焦点移动的激光束控制电路和一对检测器,用于检测从对象反射的光的焦点位置的变化,并且导出与方向上的物体的形状相关的信息 的光轴。 信号处理电路驱动激光束控制电路以产生聚焦状态,并将检测器的输出信号调整到规定状态。
    • 96. 发明授权
    • Ophthalmic examination apparatus
    • 眼科检查仪器
    • US4781453A
    • 1988-11-01
    • US49719
    • 1987-05-12
    • Koji Kobayashi
    • Koji Kobayashi
    • A61B3/10A61B3/12A61B3/14
    • A61B3/1225A61B3/145
    • An ophthalmic examination apparatus directs a laser beam from a laser light source onto the fundus of an eye to scan the fundus two-dimensionally, picks up the light reflected back from the eye fundus and by means of a photoelectric transducer subjects the light to photoelectric conversion to obtain information about the eye fundus. A laser light source is provided that generates laser beams of a plurality of wavelengths, a first acousto-optical device selects one wavelength from among the plurality of laser beam wavelengths, a first optical deflector is used to scan a laser beam in one direction at a predetermined frequency, and a second optical deflector is used for scanning the laser beam in a direction at right-angles to the above direction at a frequency that is lower than the above frequency. The first optical deflector is constructed as the second acousto-optical device which is driven at an ultrasonic frequency, and by changing the range of variability of the ultrasonic frequency of the second acousto-optical device in accordance with the laser beam wavelength selected by the first acousto-optical device, the angle of deflection of the first optical deflector becomes the same irrespective of the wavelength of the laser beam.
    • 眼科检查装置将来自激光光源的激光束引导到眼睛的眼底,二维扫描眼底,拾取从眼底反射回来的光,并通过光电传感器使光进行光电转换 获取有关眼底的信息。 提供产生多个波长的激光束的激光源,第一声光装置从多个激光束波长中选择一个波长,第一光偏转器用于在一个方向扫描激光束 并且第二光偏转器用于以比上述频率低的频率在与上述方向成直角的方向上扫描激光束。 第一光偏转器被构造为以超声波频率驱动的第二声光装置,并且通过根据由第一声光装置选择的激光束波长改变第二声光装置的超声波频率的变化范围 声光装置,与激光束的波长无关地,第一光偏转器的偏转角变得相同。
    • 97. 发明授权
    • Method and apparatus for correcting video signals in color printing
simulation
    • 用于在彩色打印模拟中校正视频信号的方法和装置
    • US4454536A
    • 1984-06-12
    • US365643
    • 1982-04-05
    • Kisaburo ShimuraTetsuji UtsudaHironobu SudaKoji Kobayashi
    • Kisaburo ShimuraTetsuji UtsudaHironobu SudaKoji Kobayashi
    • G03F3/08H04N1/60
    • H04N1/6011
    • A method and an apparatus for correcting video signals are provided for printing simulation with a color monitor. Excellent mixed-color simulation can be performed in a printing process processing with a relatively high U.C.R.%. Mixed-color signals of secondary colors, a tertiary color, a quaternary color, black x primary colors, and black x secondary colors are detected from the signals (Y), (M), (C) and (K) for yellow Y, magenta M, cyan C and black K. The mixed-color signals are subjected to overlap compensation to provide overlap-compensated mixed-color signals. The signals (Y), (M), (C) and (K) are corrected using the overlap-compensated mixed-color signals so as to reduce color value of the mixed-colors in small portions. Printing simulation with a color monitor is facilitated. A correction/conversion method and an apparatus therefor are also provided which have a function of mixed-color correction and a function of converting the signals (Y), (M), (C) and (K) into signals (B), (G) and (R) for the color monitor.
    • 提供了一种用于校正视频信号的方法和装置,用于利用彩色监视器进行打印模拟。 可以在相对较高的U.C.R.%的打印处理中进行优异的混色模拟。 从黄色Y的信号(Y),(M),(C)和(K)中检测出副色,三色,四色,黑x原色和黑x二色的混色信号, 品红色M,青色C和黑色K.混合色信号进行重叠补偿以提供重叠补偿的混合色信号。 使用重叠补偿混合色信号来校正信号(Y),(M),(C)和(K),以便减小混合颜色的小部分的颜色值。 便于使用彩色显示器进行打印模拟。 还提供了一种具有混色校正功能和将信号(Y),(M),(C)和(K)转换为信号(B),(B)的功能的校正/转换方法及其装置, G)和(R)。