公开(公告)号：US5499112A

公开(公告)日：1996-03-12

申请号：US183367

申请日：1994-01-19

申请人： Tatsundo Kawai ,  Osamu Hamamoto ,  Shinichi Takeda ,  Satoshi Itabashi ,  Toshimitsu Iso

发明人： Tatsundo Kawai ,  Osamu Hamamoto ,  Shinichi Takeda ,  Satoshi Itabashi ,  Toshimitsu Iso

IPC分类号： F21V8/00 ,  G02B6/00 ,  G02B6/04 ,  G02B6/10 ,  G02B6/42 ,  H04N1/028 ,  H04N1/03 ,  H04N1/031 ,  H04N1/04

CPC分类号： G02B6/0013 ,  G02B6/0001 ,  G02B6/0031 ,  G02B6/0038 ,  G02B6/0046 ,  G02B6/0055 ,  G02B6/0061 ,  H04N1/02815 ,  H04N1/0282 ,  H04N1/02835 ,  H04N1/0284 ,  H04N1/02885 ,  H04N1/0289 ,  H04N1/03 ,  H04N1/0313 ,  H04N1/0316 ,  H04N1/0318 ,  G02B2006/0098 ,  G02B6/0036 ,  G02B6/0043 ,  G02B6/10 ,  G02B6/42 ,  H04N2201/03112

摘要： There is disclosed an illumination device in which a light guide is adapted to emit the light from a face thereof and is provided with an area, on a face opposite to the light emitting face, for diffusing and/or reflecting the light introduced into the light guide from an end face thereof or is provided with uneven light emitting characteristics along the longitudinal direction of the light guide, and the center of the light source positioned at the end of the light guide is placed at a position aberrated from the normal line to said area, whereby attained are compactness, a low cost, a low electric power consumption, a high efficiency of utilization of the light emitted by the light source, and excellent and uniform illumination characteristics. There are also disclosed an image reading device and an information processing apparatus, equipped with the above-mentioned illumination device.

公开(公告)号：US4733098A

公开(公告)日：1988-03-22

申请号：US6676

申请日：1987-01-27

申请人： Shinichi Seito ,  Makoto Ogura ,  Tatsundo Kawai ,  Hirofumi Iwamoto

发明人： Shinichi Seito ,  Makoto Ogura ,  Tatsundo Kawai ,  Hirofumi Iwamoto

IPC分类号： H04N1/04 ,  H04N1/028 ,  H04N1/031 ,  H01J40/14 ,  H01L27/14 ,  H01L31/00

CPC分类号： H04N1/0315 ,  H04N1/0318 ,  H04N2201/02497 ,  H04N2201/03112 ,  H04N2201/0315 ,  H04N2201/03162

摘要： An image reading apparatus comprising a photosensor for receiving light from a light source through an original document, a wiring section for driving the photosensor, a circuit for driving the photosensor and for processing an output signal from the photosensor. The apparatus includes a first substrate having the photosensor and the wiring section thereon, and a second substrate having the circuit thereon and being separated from the first substrate. The second substrate is fixed above the first substrate.

摘要翻译： 一种图像读取装置，包括用于通过原始文档接收来自光源的光的光传感器，用于驱动光电传感器的布线部分，用于驱动光传感器的电路和用于处理来自光传感器的输出信号。 该装置包括其上具有光电传感器和布线部分的第一基板和在其上具有电路并与第一基板分离的第二基板。 第二基板固定在第一基板上方。

公开(公告)号：US4680644A

公开(公告)日：1987-07-14

申请号：US755797

申请日：1985-07-17

申请人： Yoshiaki Shirato ,  Toshiyuki Komatsu ,  Shinichi Seito ,  Tatsundo Kawai ,  Hirofumi Iwamoto ,  Katsumi Nakagawa ,  Yasuo Kuroda

发明人： Yoshiaki Shirato ,  Toshiyuki Komatsu ,  Shinichi Seito ,  Tatsundo Kawai ,  Hirofumi Iwamoto ,  Katsumi Nakagawa ,  Yasuo Kuroda

IPC分类号： H04N1/031 ,  H04N1/40 ,  H04N1/401 ,  H04N1/024

CPC分类号： H04N1/031 ,  H04N1/40056 ,  H04N1/401

摘要： There is a method and an apparatus for reading an image in which the light emitted from a light source through an original is converted into an electric signal by a photoelectric converting device and is outputted as an image singal. In this method, a compensation light is radiated onto the photoelectric converting device and thereby causing a compensation signal to be generated therefrom; this compensation signal is stored into a memory; an original image is then read; and the read signal is compensated by the compensation signal stored in the memory. The compensation light corresponds to each intensity of lights which are obtained through a reference original to be read and which are received by the photoelectric converting device. By use of this method in an original reading section of a facsimile apparatus or the like, an ununiformity and a variation in signal of each bit which is read by the photoelectric converting device are compensated, so that a stable output image signal can be derived.

摘要翻译： 存在一种用于读取通过原稿从光源发射的光由光电转换装置转换成电信号的图像的方法和装置，并且作为图像信号输出。 在该方法中，补偿光被照射到光电转换装置上，从而产生补偿信号; 该补偿信号被存储到存储器中; 然后读取原始图像; 并且读取信号由存储在存储器中的补偿信号补偿。 补偿光对应于通过要读取的参考原稿获得并由光电转换装置接收的每个光强度。 通过在传真装置等的原始读取部分中使用这种方法，补偿由光电转换装置读取的每个位的信号的不均匀性和变化，从而可以导出稳定的输出图像信号。