公开(公告)号：US4791493A

公开(公告)日：1988-12-13

申请号：US88486

申请日：1987-08-19

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

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

IPC分类号： H04N1/04 ,  H04N1/031 ,  H04N1/40

CPC分类号： H04N1/40056 ,  H04N1/031

摘要： An image reading apparatus for reading an image by radiating the light onto an original includes a photosensor array the photosensors of which are arranged along the width of the original and receive the light scattered from the original surface and convert that light into electric signals. A period of time from the time when the photosensors receive the light until outputs containing the read information are derived cannot be ignored as compared with a reading scan time when the signals are read from the photosensor. A light source is arranged along the width of the original and is divided into a plurality of. A light-on controller for lighting the blocks of the light source to illuminate pixels for the reading of an image on the original, in advance of the reading of the pixels, for a time interval over neater than the foregoing period of time. In this apparatus, only a single LED array is used, so that the arrangement of the apparatus is simplified and the cost of the apparatus and its operating cost are also reduced.

摘要翻译： 用于通过将光照射到原稿上来读取图像的图像读取装置包括光电传感器阵列，其光敏元件沿着原稿的宽度布置并且接收从原始表面散射的光并将该光转换成电信号。 与从光传感器读取信号时的读取扫描时间相比，导出从光传感器接收光直到包含读取信息的输出的时间的时间段不能被忽略。 光源沿着原稿的宽度布置，并被分成多个。 一种点亮控制器，用于照亮所述光源的块以在像素的读取之前在比上述时间段更短的时间间隔照亮用于原稿上的图像的读取的像素。 在该装置中，仅使用单个LED阵列，从而简化了装置的布置，并且降低了装置的成本和运行成本。

公开(公告)号：US20100090584A1

公开(公告)日：2010-04-15

申请号：US12572183

申请日：2009-10-01

申请人： Tatsundo Kawai ,  Yuuji Kasanuki

发明人： Tatsundo Kawai ,  Yuuji Kasanuki

IPC分类号： H01J1/62 ,  G09G3/20

CPC分类号： G09G3/22 ,  H01J1/63 ,  H01J29/86 ,  H01J31/127 ,  H01J2329/20

摘要： An image display device includes a rear plate provided with an electron emitting element, a face plate provided with a transparent substrate, a transparent anode electrode formed on the transparent substrate, and a fluorescent layer provided on the anode electrode and including fluorescent particles. An average particle size of the fluorescent particles is equal to or less than 500 nm. The face plate has a light extraction means for extracting light emitted when the fluorescent layer is irradiated by electrons emitted from the electron emitting element to the substrate side.

摘要翻译： 图像显示装置包括设置有电子发射元件的背板，设置有透明基板的面板，形成在透明基板上的透明阳极电极和设置在阳极电极上并包括荧光颗粒的荧光层。 荧光体的平均粒径为500nm以下。 面板具有用于提取当从电子发射元件发射到衬底侧的电子线照射荧光层时发出的光的光提取装置。

公开(公告)号：US06661497B2

公开(公告)日：2003-12-09

申请号：US09985115

申请日：2001-11-01

申请人： Masami Tabata ,  Tatsundo Kawai

发明人： Masami Tabata ,  Tatsundo Kawai

IPC分类号： G03B2772

CPC分类号： H04N1/02885 ,  G02B6/00 ,  H04N1/02815 ,  H04N1/02835 ,  H04N1/0284 ,  H04N1/0315 ,  H04N1/0318 ,  H04N1/1017 ,  H04N1/193 ,  H04N1/484 ,  H04N2201/03112 ,  H04N2201/0312 ,  H04N2201/03125 ,  H04N2201/03141 ,  H04N2201/03145 ,  H04N2201/0317 ,  H04N2201/03187 ,  H04N2201/03195

摘要： There is disclosed a light guide for guiding light from a light source in a longitudinal direction and radiating the light to illuminate an object to be illuminated, which includes a diffuser for diffusing the light from the light source along the longitudinal direction of the light guide, and a radiator for radiating the light diffused by the diffuser in a predetermined direction. By arranging the diffuser and the radiator so that a normal line passing through the center of the width of the diffuser is different from the predetermined direction at least in the vicinity of the light source when viewed in the longitudinal direction of the light guide, the illuminance distribution of the longitudinal direction of the light guide is uniformed.

公开(公告)号：US06556317B2

公开(公告)日：2003-04-29

申请号：US08900342

申请日：1997-07-25

申请人： Masami Tabata ,  Tatsundo Kawai

发明人： Masami Tabata ,  Tatsundo Kawai

IPC分类号： H04N146

CPC分类号： H04N1/484

摘要： In an image sensor which has a photoelectric conversion element group, an illumination device having light sources of at least three emission colors R, G, and B, an imaging lens, and the like, moire noise in a color output image is eliminated, the original reading time is shortened, and a cost reduction is attained. For this purpose, a sensor array including a linear array of a plurality of photoelectric conversion elements, a lens array for imaging an original image on the sensor array, an illumination device using LEDs having emission colors R, G, and B, and a cover glass are supported by and fixed to a frame. The conjugate length of the lens array is set to fall within the range between the R and G emission wavelengths. An original pressed against the cover glass is illuminated by the illumination device, and light reflected by the original is converted into electrical signals by the sensor array, thereby reading the original image.

摘要翻译： 在具有光电转换元件组的图像传感器中，消除了具有至少三种发光颜色R，G和B的光源的照明装置，成像透镜等，彩色输出图像中的莫尔噪声被消除， 原始阅读时间缩短，降低成本。 为此，包括多个光电转换元件的线性阵列的传感器阵列，用于对传感器阵列上的原始图像进行成像的透镜阵列，使用具有发光颜色R，G和B的LED的照明装置和盖 玻璃由框架支撑并固定在框架上。 透镜阵列的共轭长度设定在R和G发射波长之间的范围内。 按压在玻璃罩上的原稿由照明装置照亮，由原稿反射的光由传感器阵列转换为电信号，从而读取原始图像。

公开(公告)号：US06375335B1

公开(公告)日：2002-04-23

申请号：US08991516

申请日：1997-12-16

申请人： Masami Tabata ,  Tatsundo Kawai

发明人： Masami Tabata ,  Tatsundo Kawai

IPC分类号： F21V800

CPC分类号： G02B6/002 ,  G02B6/0028 ,  G02B6/0036 ,  G02B6/0038 ,  G02B6/0055 ,  G02B6/0068

摘要： A light source or LED element is positioned adjacent to an entrance surface of a light guide element of stick shape made of a light transmissive substrate. The light that has entered from the entrance surface to the interior of the light guide element is scattered by a diffusion area to emerge from an exit surface in a predetermined direction, wherein the light that has entered from the entrance surface into the light guide element is not made incident directly on at least a part of the diffusion area.

摘要翻译： 光源或LED元件与由透光基板制成的棒状导光元件的入射面相邻。 从入射面入射到导光元件内部的光被扩散区域散射，从出射面沿预定方向出射，其中从入射面入射到导光元件的光是 不直接在扩散区域的至少一部分上直接产生。

公开(公告)号：US6055072A

公开(公告)日：2000-04-25

申请号：US900645

申请日：1997-07-25

申请人： Masami Tabata ,  Tatsundo Kawai

发明人： Masami Tabata ,  Tatsundo Kawai

IPC分类号： H04N1/028 ,  G06T1/00 ,  H04N1/04 ,  H04N1/48 ,  H04N1/46 ,  H01J40/14

CPC分类号： H04N1/484

摘要： In an image sensor which has a photoelectric conversion element group, an illumination device having light sources of at least three emission colors R, G, and B, an imaging lens, and the like, moire noise in a color output image is eliminated, the original reading time is shortened, and a cost reduction is attained. For this purpose, a sensor array (1) including a linear array of a plurality of photoelectric conversion elements, a lens array (2) for imaging an original image on the sensor array (1), an illumination device (3) using LEDs having emission colors R, G, and B, and a cover glass (4) are supported by and fixed to a frame (5). The conjugate length of the lens array (2) is set to fall within the range between the B and G emission wavelengths. An original pressed against the cover glass (4) is illuminated by the illumination device (3), and light reflected by the original is converted into electrical signals by the sensor array (1), thereby reading the original image.

摘要翻译： 在具有光电转换元件组的图像传感器中，消除了具有至少三种发光颜色R，G和B的光源的照明装置，成像透镜等，彩色输出图像中的莫尔噪声被消除， 原始阅读时间缩短，降低成本。 为此，包括多个光电转换元件的线性阵列的传感器阵列（1），用于对传感器阵列（1）上的原始图像进行成像的透镜阵列（2），使用LED的照明装置（3） 发射颜色R，G和B以及盖玻璃（4）由框架（5）支撑并固定在框架（5）上。 透镜阵列（2）的共轭长度被设定在B和G发射波长之间的范围内。 被照明装置（3）照射被盖玻璃（4）的原稿，由原稿反射的光被传感器阵列（1）转换为电信号，从而读取原始图像。

公开(公告)号：US5261013A

公开(公告)日：1993-11-09

申请号：US845052

申请日：1992-03-03

申请人： Masayoshi Murata ,  Katsumi Komiyama ,  Tatsundo Kawai ,  Makoto Ogura ,  Hiroo Ichihashi ,  Osamu Hamamoto

发明人： Masayoshi Murata ,  Katsumi Komiyama ,  Tatsundo Kawai ,  Makoto Ogura ,  Hiroo Ichihashi ,  Osamu Hamamoto

IPC分类号： H01L31/0216 ,  H04N1/028 ,  H04N1/031 ,  G06K9/00 ,  H01L31/02 ,  H04N1/024

CPC分类号： H04N1/02845 ,  H01L31/02164 ,  H04N1/02815 ,  H04N1/031

摘要： A photoelectric converter includes a transparent substrate having a photoelectric converting element provided on a surface opposing a document relating to reading of image information, a transparent support for supporting the substrate, and a light source provided on a surface of the support opposite to a supporting surface for the substrate. Light emitted from the light source is radiated on a document through the support and the substrate, and reflected light is received by the photoelectric converting element.

摘要翻译： 光电转换器包括：透明基板，具有设置在与图像信息的读取有关的文件的表面上的光电转换元件，用于支撑基板的透明支撑体，以及设置在支撑体的与支撑面相对的表面上的光源 用于基材。 从光源发出的光通过支撑体和基板照射在文件上，反射光被光电转换元件接收。

公开(公告)号：US5233442A

公开(公告)日：1993-08-03

申请号：US932381

申请日：1992-08-19

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： H01L27/146 ,  H04N1/031 ,  H04N1/401

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 number, 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，并且从参考号反射的光提供参考信号，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。

公开(公告)号：US5187595A

公开(公告)日：1993-02-16

申请号：US616831

申请日：1990-11-21

申请人： Masashi Kitani ,  Tatsundo Kawai ,  Hiroo Ichihashi

发明人： Masashi Kitani ,  Tatsundo Kawai ,  Hiroo Ichihashi

IPC分类号： H04N1/028 ,  H01L27/146 ,  H04N1/031

CPC分类号： H04N1/0316 ,  H04N1/0313

摘要： Apparatus for improving illumination in a photoelectric conversion device having a light source for illuminating an original, and at least one photoelectric conversion element for receiving light reflected from the original includes a light guide for guiding light from the light source to the original, the light guide having at least one side surface. A correction section is provided and is disposed adjacent the side surface of the light guide. The correction section acts to suppress total reflection of at least a portion of the light emitted from the light source. Preferably, the correction section comprises regularly spaced light absorbing or light diffusing elements formed on the side of the light guide. The improvement apparatus may be employed in an information processing apparatus such as a facsimile machine.

摘要翻译： 用于改善具有用于照射原稿的光源的光电转换装置中的照明的装置和用于接收从原稿反射的光的至少一个光电转换元件包括：用于将来自光源的光引导到原稿的光导， 具有至少一个侧表面。 设置校正部并且邻近导光体的侧表面设置。 校正部用于抑制从光源发出的光的至少一部分的全反射。 优选地，校正部分包括形成在光导的一侧上的规则间隔的光吸收或光漫射元件。 改进装置可以用在诸如传真机之类的信息处理装置中。

公开(公告)号：US5063462A

公开(公告)日：1991-11-05

申请号：US445929

申请日：1989-12-05

申请人： Katsumi Nakagawa ,  Tatsundo Kawai ,  Yasuo Kuroda

发明人： Katsumi Nakagawa ,  Tatsundo Kawai ,  Yasuo Kuroda

IPC分类号： G01J1/44 ,  G06T1/00 ,  H04N1/028 ,  H04N1/03 ,  H04N1/04 ,  H04N1/40

CPC分类号： H04N1/02865 ,  H04N1/03 ,  H04N1/40056

摘要： An LED array has a plurality of LED blocks each of which can independently be illuminated or extinguished. The LED array includes an illumination control unit for illuminating, after the lapse of a time period T1 after a block is illuminated, a succeeding block; an extinguishment control unit for extinguishing, after the lapse of a time period T2 after a block is illuminated, another block which has been illuminated since before the former block was illuminated; and a time control unit for determining the time period T2. The time control unit is adapted to automatically control the time period T2 in accordance with the outputs from a line sensor which reads out an original image illuminated by the LED array.

摘要翻译： LED阵列具有多个LED块，每个LED块可独立地被照亮或熄灭。 LED阵列包括照明控制单元，用于在块被照亮之后的经过时间段T1之后照亮后续块; 熄灭控制单元，在块被照亮之后的经过了一段时间T2之后熄灭另一块已经被照亮的块，因为在前一块被照亮之前; 以及用于确定时间段T2的时间控制单元。 时间控制单元适于根据读出由LED阵列照亮的原始图像的线传感器的输出自动控制时间段T2。