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53 条记录 (耗时 0.041 秒)

    Photosensor and image reading device with improved correction means for signal correction and image reading method
    21.
    发明授权
    Photosensor and image reading device with improved correction means for signal correction and image reading method 失效
    光传感器和图像读取装置，具有改进的校正装置，用于信号校正和图像读取方法

    公开(公告)号：US5272548A

    公开(公告)日：1993-12-21

    申请号：US534262

    申请日：1990-06-07

    申请人： Tatsundo Kawai ,  Toshihiro Saika ,  Noriyuki Kaifu ,  Isao Kobayashi ,  Tadao Endo ,  Kouji Tomoda

    发明人： Tatsundo Kawai ,  Toshihiro Saika ,  Noriyuki Kaifu ,  Isao Kobayashi ,  Tadao Endo ,  Kouji Tomoda

    IPC分类号： H04N1/028 ,  H01L27/146 ,  H04N1/031 ,  H04N1/19 ,  H04N1/401 ,  H04N1/024

    CPC分类号： H04N1/0316 ,  H04N1/0313 ,  H04N1/401 ,  H01L27/14678

    摘要： A photosensor with improved correction of image signals has a first photosensor portion including a plurality of photoelectric converting devices for reading an object and providing image signals thereof. A second photosensor portion includes a plurality of photoelectric converting devices and provides reference signals from light reflected from a reference member, or light received directly from a light source. Correction circuitry corrects the image signals from the first photosensor portion in accordance with the reference signals output from the second photosensor portion. Preferably, the photoelectric converting devices of the first and second photosensor portions are arranged in adjacent, parallel lines on the same substrate. Preferably, reference signals from the converting devices of the second photosensor are used by the correction circuitry to correct the electrical signals from substantially adjacent converting devices of the first photosensor portion. A single converting device of the second photosensor portion may be used to correct either one or more of the converting devices of the first photosensor portion.

    摘要翻译： 具有改进的图像信号校正的光传感器具有第一光传感器部分，其包括用于读取对象并提供其图像信号的多个光电转换装置。 第二光传感器部分包括多个光电转换装置，并且提供从参考部件反射的光的参考信号，或直接从光源接收的光。 校正电路根据从第二光电传感器部分输出的参考信号来校正来自第一光电传感器部分的图像信号。 优选地，第一和第二光电传感器部分的光电转换装置布置在同一基板上的相邻的平行线上。 优选地，校正电路使用来自第二光电传感器的转换装置的参考信号来校正来自第一光电传感器部分的基本上相邻的转换装置的电信号。 可以使用第二光电传感器部分的单个转换装置来校正第一光电传感器部分的一个或多个转换装置。

    Illumination device and image reading apparatus using the same
    25.
    发明授权
    Illumination device and image reading apparatus using the same 失效
    照明装置和使用其的图像读取装置

    公开(公告)号：US06360030B1

    公开(公告)日：2002-03-19

    申请号：US08989359

    申请日：1997-12-12

    申请人： Tatsundo Kawai ,  Masami Tabata

    发明人： Tatsundo Kawai ,  Masami Tabata

    IPC分类号： G06L700

    CPC分类号： H04N1/031

    摘要： The form of a light condensing part of an illuminating device is of a freer form such as expressed by a general polynomial, rather than a round cross-sectional form. Accordingly, an illumination device or an image reading apparatus having the same which includes a light guide element having an entrance surface provided at one end thereof for an incident light flux, an exit surface provided on a side other than the one end extending in a longitudinal direction of the light guide element for allowing the incident light flux to exit therefrom, a reflecting and/or scattering area provided at a side other than the exit surface for reflecting and/or scattering the light flux propagated in a light-transmissive member, and a light condensing part provided on the exit surface for condensing the exiting light flux, and a light source provided adjacent to the entrance surface of the light guide element, wherein, assuming that in a cross-section orthogonally intersecting the longitudinal direction, a direction opposite to a normal line of the reflecting and/or scattering area is a z axis and a direction orthogonally intersecting the z axis is a y axis, at least a part of a surface of the light condensing part is expressed by a polynomial of y, and at least one of coefficients of odd-number-th degree terms in the polynomial is not “0”.

    摘要翻译： 照明装置的聚光部分的形式是更为自由的形式，例如由一般多项式表示，而不是圆形横截面形式。 因此，具有该照明装置或图像读取装置的照明装置或图像读取装置具有导光元件，该导光元件的一端具有用于入射光束的入射面，设置在除了纵向延伸的一端以外的一侧的出射面 用于允许入射光束离开的导光元件的方向，设置在出射表面以外的一侧的反射和/或散射区域，用于反射和/或散射在透光构件中传播的光束;以及 设置在所述出射面上用于会聚出射光束的聚光部，以及与所述导光元件的入射面邻接设置的光源，其中，在与所述纵向方向正交的截面中， 反射和/或散射区域的法线是az轴，与z轴正交的方向是ay轴，在leas 光聚合部分的表面的一部分由y的多项式表示，并且多项式中的奇数项目的系数中的至少一个不是“0”。

    Image reading apparatus with jam-prevention feature
    30.
    发明授权
    Image reading apparatus with jam-prevention feature 失效
    具有防卡功能的图像读取装置

    公开(公告)号：US4920431A

    公开(公告)日：1990-04-24

    申请号：US144644

    申请日：1988-01-11

    申请人： Makoto Ogura ,  Tatsundo Kawai ,  Katsuhiko Yamada ,  Shinichi Seito

    发明人： Makoto Ogura ,  Tatsundo Kawai ,  Katsuhiko Yamada ,  Shinichi Seito

    IPC分类号： H04N1/031 ,  H04N1/12 ,  H04N1/193

    CPC分类号： H04N1/1215 ,  H04N1/031 ,  H04N1/193

    摘要： There is an image reading apparatus for use in a facsimile apparatus, a copying machine or the like. This apparatus illuminates the light from a light source such as an LED array onto an original which is conveyed by a conveying device and thereby reading an image data on the original. To smoothly guide the edge of the original, an original guiding device which guides the original non-rippingly is provided downstream of the position where the original is read in the original conveying direction by the conveying device. As an original guiding device, a flat or concave guide surface, a flat or concave notch, original guide rollers, a guide member having a concave surface, or the like is provided. The guiding device may if desired be light-reflective.

    摘要翻译： 在传真机，复印机等中使用图像读取装置。 该装置将来自LED阵列的光源的光照射到由输送装置输送的原稿上，从而读取原稿上的图像数据。 为了顺利地引导原稿的边缘，通过传送装置在原始传送方向上读取原件的位置的下游设置引导原稿不原始的原稿引导装置。 作为原始引导装置，设置有平坦或凹形的引导表面，平坦或凹入的凹口，原始引导辊，具有凹面的引导构件等。 如果需要，引导装置可以是光反射的。