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    • 2. 发明授权
    • Image pickup apparatus for receiving light and converting to an
electrical signal corresponding to the light
    • 用于接收光并转换成对应于光的电信号的摄像装置
    • US5155585A
    • 1992-10-13
    • US736693
    • 1991-07-26
    • Yujiro Ishikawa
    • Yujiro Ishikawa
    • H04N5/335H04N5/372H04N9/04H04N9/07
    • H04N9/045H04N5/335H04N9/07
    • An image pickup apparatus receives light on image sensing elements and generates an electrical signal corresponding to integrals of luminances thereon with respect to time and outputs the electrical signal to an A/D converter. A disk shaped color filter unit, having red, green, and blue color filters with the same sectorial shape, is rotated so the color filters are respectively disposed on the optical path of light falling on the image sensing elements. A control unit monitors the magnitude of a digital signal converted by the A/D converter and controls the filter moving unit based on the magnitude of digital signal so that the color filter is rotated at a higher rotating speed when the illumination of the environment is higher. Further, the control unit controls the color filter moving unit so that the color filter is rotated at a first speed n, when a color image signal generating mode is set, and controls the color filter moving unit so that the color filter is moved at a second speed 3n times the first speed when a black-and-white image signal generating mode is set.
    • 图像拾取装置在图像感测元件上接收光,并且产生对应于其上的亮度积分的电信号,并将电信号输出到A / D转换器。 具有相同扇形形状的红色,绿色和蓝色滤色器的盘形滤色器单元被旋转,使得滤色器分别设置在落在图像感测元件上的光的光路上。 控制单元监视由A / D转换器转换的数字信号的大小,并且基于数字信号的大小来控制滤波器移动单元,使得当环境的照明较高时,滤色器以更高的转速旋转 。 此外,当设置彩色图像信号生成模式时,控制单元控制滤色器移动单元,使得滤色器以第一速度n旋转,并且控制滤色器移动单元,使得滤色器在 当设置黑白图像信号生成模式时,第二速度是第一速度的3n倍。
    • 5. 发明授权
    • Optical reader
    • 光学读卡器
    • US4700061A
    • 1987-10-13
    • US799457
    • 1985-11-19
    • Yujiro Ishikawa
    • Yujiro Ishikawa
    • H04N1/028G06T1/00H04N1/40H04N1/46H04N1/48G02B5/14H01J5/16
    • H04N1/484H04N1/40056
    • A plurality of light emitting elements which are adapted to emit light of three primary colors are activated in a sequential order, and the emitted light is transmitted through a single emission side optical fiber to illuminate an image surface. Reflected light from the image surface is conveyed to a light receiving element through a corresponding receiving side optical fiber. A decision circuit determines whether or not an output from the light receiving element has reached a given level. The sequence of emission from the respective light emitting elements as well as the amount of light emitted therefrom are controlled by control means. When the given level is reached, the associated data is stored to assure a proper reading of the image.
    • 适用于发射三原色光的多个发光元件按顺序被激活,并且发射的光通过单个发射侧光纤透射以照射图像表面。 来自图像表面的反射光通过相应的接收侧光纤被传送到光接收元件。 决定电路确定来自光接收元件的输出是否达到给定的电平。 来自各个发光元件的发射顺序以及从其发射的光量由控制装置控制。 当达到给定级别时,存储相关数据以确保图像的正确读取。
    • 6. 发明授权
    • Optical image reader for reading an image on a given manuscript
    • 用于在给定手稿上读取图像的光学图像读取器
    • US4642472A
    • 1987-02-10
    • US645046
    • 1984-08-28
    • Yujiro Ishikawa
    • Yujiro Ishikawa
    • H04N1/04G06T1/00H04N1/191H04N1/028H04N1/06
    • H04N1/128H04N1/1911H04N1/1916
    • An optical image reader is disclosed which effects the reading of an image on a given manuscript by moving a reading head provided with a plurality of photosensors over the surface of the manuscript and enabling the photosensors to directly discern the image information on the manuscript. In the optical image reader, the photosensors in the reading head are sequentially deviated in a direction perpendicular to the direction of the movement of the reading head and, therefore, are able to read the image information on the read points on the manuscript face to correspondingly deviated time intervals. Thus, the optical image reader operated at a high speed without any interruption.
    • 公开了一种光学图像读取器,其通过在原稿的表面上移动设置有多个光电传感器的读取头,使得光电传感器能够直接识别原稿上的图像信息来影响给定原稿上的图像的读取。 在光学图像读取器中,读取头中的光电传感器在垂直于读取头的移动方向的方向上顺序地偏离,因此能够读取关于原稿面上的读取点上的图像信息 偏离时间间隔。 因此,光学图像读取器以高速度操作而没有任何中断。
    • 7. 发明授权
    • Optical image reader for reading an image on a given manuscript
    • 用于在给定手稿上读取图像的光学图像读取器
    • US4636650A
    • 1987-01-13
    • US645042
    • 1984-08-28
    • Yujiro Ishikawa
    • Yujiro Ishikawa
    • H04N1/04G06T1/00H04N1/407H04N1/032
    • H04N1/407
    • An optical image reader is disclosed which effects the reading of an image on a given manuscript by projecting beams pf light on the manuscript, receiving the reflected beams of light from the read points in a plurality of optical fibers and discerning the image in accordance with the amount of light received in the optical fibers. This optical image reader is so constructed as to detect variations in the output voltage levels of an amplifier serving to amplify detection signals derived from the read points and, based on the variations so detected, cause the output voltage levels of the amplifier to be constantly controlled at a fixed level. Thus, the adjustment required for stabilizing the reading of an image is simplified and the reading of an image is effected accurately and precisely in spite of aging.
    • 公开了一种光学图像读取器,其通过在原稿上投射光束pf光来接收来自多个光纤中的读取点的反射光束并根据该图像识别图像来影响给定原稿上的图像的读取 在光纤中接收的光量。 该光学图像读取器被构造成检测用于放大从读取点导出的检测信号的放大器的输出电压电平的变化,并且基于所检测的变化,使得放大器的输出电压电平被恒定地控制 在一个固定的水平。 因此,为了稳定图像的读取所需的调整被简化,并且尽管老化,图像的读取被精确和精确地实现。