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公开(公告)号：US5412201A
公开(公告)日：1995-05-02
申请号：US62218
申请日：1993-05-18
CPC分类号： H04N1/00013 , H04N1/00002 , H04N1/00031 , H04N1/00053 , H04N1/00063 , H04N1/00408 , H04N1/03 , H04N2201/02441 , H04N2201/02493
摘要： An image reading apparatus is provided with a scanning optical system movable to scan an original, the scanning optical system having a slit for passing therethrough part of light from the original, a sensor for reading the light passed through the slit, and detecting means for detecting the relative positional relationship between the slit and the sensor. The detection by the detecting means is effected at a plurality of detecting positions in the direction of movement of the scanning optical system.
摘要翻译： 一种图像读取装置具有扫描光学系统，可扫描原稿，扫描光学系统具有用于使来自原稿的光的一部分通过的狭缝，用于读取通过狭缝的光的传感器，以及检测装置， 狭缝和传感器之间的相对位置关系。 检测装置的检测是在扫描光学系统的移动方向的多个检测位置进行的。
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公开(公告)号：US5283698A
公开(公告)日：1994-02-01
申请号：US863782
申请日：1992-04-06
申请人： Nobumasa Fukuzawa , Akiyoshi Kimura
发明人： Nobumasa Fukuzawa , Akiyoshi Kimura
CPC分类号： H04N1/00013 , H04N1/00002 , H04N1/00037 , H04N1/00082 , H04N1/02409 , H04N1/03 , H04N1/1013 , H04N1/193 , H04N2201/02418 , H04N2201/0242 , H04N2201/02429 , H04N2201/02431 , H04N2201/04731 , H04N2201/04791
摘要： There is disclosed an image reading apparatus in which the scanning optical system having a slit is caused to scan in a short-side direction of the slit, and light passed through the slit and reflected from or transmitted through an original is guided to a solid-state image pickup element through an optical image forming element so that the image is formed on the solid-state image pickup element and is read. In the apparatus, opening portions for detecting a shift in relative positional relationship between the slit and the solid-state image pickup element are formed in both end portions of the slit in its longitudinal direction corresponding to a portion other than an effective image region of the solid-state image pickup element.
摘要翻译： 公开了一种图像读取装置，其中具有狭缝的扫描光学系统在狭缝的短边方向上进行扫描，并且穿过狭缝并从原件反射或透射通过原稿的光被引导到固体 - 通过光学图像形成元件的状态图像拾取元件，使得图像形成在固态图像拾取元件上并被读取。 在该装置中，用于检测狭缝和固态摄像元件之间的相对位置关系偏移的开口部分形成在狭缝的沿其纵向方向的两端部对应于除了有效图像区域之外的部分 固态摄像元件。
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公开(公告)号：US06995878B2
公开(公告)日：2006-02-07
申请号：US10010047
申请日：2001-12-04
申请人： Nobumasa Fukuzawa
发明人： Nobumasa Fukuzawa
IPC分类号： H04N2/04
CPC分类号： H04N1/00262 , H04N1/00249 , H04N1/02409 , H04N1/04 , H04N1/0464 , H04N1/1013 , H04N1/121 , H04N1/193 , H04N2201/0458
摘要： The object of this invention is to read an image (scan flow), when an original is being moved, above a scan flow glass member, so as to prevent degradation in image caused by dust or a scar on a scan flow glass. In order to achieve this object, the original which is being moved is illuminated by an illumination system comprised of an illumination light source and reflecting member and different from an illumination system in a reading apparatus body and comprised of an illumination light source and reflecting member. After a reflected light beam passes through a slit and the scan flow glass member, it forms an image on a line sensor, e.g., a CCD, by an imaging lens through a movable mirror. As the original moves at a constant speed, it is read by the line sensor, e.g., a CCD, at a predetermined timing, thereby obtaining image information of the original. The original is located above the scan flow glass member. Even if dust or a scar of about several tens μm is present on the scan flow glass member, it goes out of focus, so it can be prevented from forming an absent point of the line sensor such as a CCD.
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公开(公告)号：US07440151B2
公开(公告)日：2008-10-21
申请号：US10660506
申请日：2003-09-12
申请人： Nobumasa Fukuzawa
发明人： Nobumasa Fukuzawa
CPC分类号： H04N1/02815 , H04N1/04 , H04N1/1013
摘要： Disclosed is an image reading apparatus in which the amount of illumination light is increased and adverse influence of reflective illumination is reduced, and which is capable of reading image information of an original, such as a document, with high precision. The image reading apparatus includes an illuminating unit for illuminating image information of the original placed on an original support, and an image forming unit for imaging the image information on a reading unit. In the image reading apparatus, the illuminating unit includes a plurality of light source portions, the image information is read in a two-dimensional manner by changing a relative position between the image information and the reading unit, and the plurality of light source portions are disposed asymmetrically with respect to an optical axis of the image forming unit in a sub-scanning cross-sectional plane.
摘要翻译： 公开了一种图像读取装置，其中照明光的量增加并且反射照明的不利影响被降低，并且能够以高精度读取诸如文档的原稿的图像信息。 图像读取装置包括用于照亮放置在原稿支架上的原稿的图像信息的照明单元，以及用于在读取单元上对图像信息进行成像的图像形成单元。 在图像读取装置中，照明单元包括多个光源部，通过改变图像信息和读取单元之间的相对位置，以二维方式读取图像信息，并且多个光源部分 相对于图像形成单元的光轴在副扫描横截面中非对称地设置。
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5.发明授权Electrophotographic image forming method of digital type having automatic image quality setting mechanism 失效具有自动图像质量设定机构的数字式电子照相图像形成方法
公开(公告)号：US5563645A
公开(公告)日：1996-10-08
申请号：US065499
申请日：1993-05-24
CPC分类号： H04N1/407
摘要： The present invention relates to an electrophotographic technique for enhancing the quality of a reproduced image of character information and image information having an intermediate gradient.A latent image forming means provides a plurality of preset .gamma.-features and a plurality of sharpness features forsetting a resolving power of an image to be formed which can be selected optionally, and, in the latent image forming means, when a particular sharpness feature is set in response to a .gamma.-feature selected from the aforementioned .gamma.-features. In the reproduction of character image information, a .gamma.-feature for enabling the image reproduction to enhance the edge effect is selected, thereby emphasizing the sharpness feature. Whereas, in the reproduction of the image information to reproduce an intermediate gradient, a .gamma.-feature for enabling the reproduction of the intermediate gradient is selected, thereby weakening the sharpness feature.
摘要翻译： 本发明涉及一种用于提高字符信息的再现图像的质量和具有中间梯度的图像信息的电子照相技术。 潜像形成装置提供多个预设的伽马特征和多个锐度特征，用于设定可任选地形成的图像的分辨率，并且在潜像形成装置中，当特定的锐度特征为 响应于从上述γ特征中选择的γ特征设置。 在字符图像信息的再现中，选择用于使图像再现能够增强边缘效果的γ特征，从而强调锐度特征。 然而，在再现中继梯度的图像信息的再现中，选择能够再现中间梯度的γ特征，从而削弱锐度特征。
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6.发明授权
公开(公告)号：US5854688A
公开(公告)日：1998-12-29
申请号：US781143
申请日：1997-01-09
申请人： Nobumasa Fukuzawa
发明人： Nobumasa Fukuzawa
CPC分类号： H04N1/401
摘要： An original reading apparatus includes a light source for illuminating an original, and a light receiver to receive light reflected from the original, the light receiver having a plurality of light receiving elements each for outputting an electric signal in accordance with an amount of received light. Output values of the light receiving elements are corrected corresponding to pixels on the original.
摘要翻译： 原稿读取装置包括用于照亮原稿的光源和用于接收从原稿反射的光的光接收器，所述光接收器具有多个光接收元件，每个光接收元件根据接收的光量输出电信号。 对应于原稿上的像素校正光接收元件的输出值。
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公开(公告)号：US07236275B2
公开(公告)日：2007-06-26
申请号：US10238440
申请日：2002-09-09
申请人： Nobumasa Fukuzawa
发明人： Nobumasa Fukuzawa
CPC分类号： H04N1/0464 , H04N1/1013 , H04N1/12 , H04N1/193 , H04N1/486 , H04N1/6027
摘要： Disclosed is an image reading apparatus capable of selectively executing a flow-scan reading method in which a document is read while the document is transported in a state in which a reader is fixed at a predetermined location, and a fixed reading method in which a document is read while the reader is moved in a predetermined direction in a state in which the document is held fixed, the apparatus having a first holding member for holding a document at the predetermined location for implementation of the flow-scan reading method, and a second holding member, which has a spectral transmittance different from that of the first holding member, for holding a document for implementation of the fixed reading method. The apparatus discriminates whether the flow-scan or fixed reading method is executed and sets coefficients, which are used in at least the reader or the image processing unit, in accordance with the flow-scan or fixed reading method. Using the set coefficients, a document is read by the reader and processing is applied to the image signal obtained by reading the document.
摘要翻译： 公开了一种能够选择性地执行流式扫描读取方法的图像读取装置，其中在将读取器固定在预定位置的状态下传送文档时读取文档以及固定读取方法，其中文档 读取器在文件保持固定的状态下沿预定方向移动时，该装置具有用于将原稿保持在预定位置的第一保持构件，以实现流扫描读取方法，第二保持构件 保持构件，其具有不同于第一保持构件的光谱透射率，用于保持用于实施固定读取方法的文件。 该装置鉴别是否执行流扫描或固定读取方法，并且根据流扫描或固定读取方法设置至少在读取器或图像处理单元中使用的系数。 使用设定系数，读取器读取文档，并将处理应用于通过读取文档获得的图像信号。
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公开(公告)号：US6032009A
公开(公告)日：2000-02-29
申请号：US148468
申请日：1998-09-08
IPC分类号： G03B27/72 , G03G15/041 , G03G15/043
CPC分类号： G03G15/0415 , G03G15/0435 , G03G15/041
摘要： In an image reading apparatus, an image is illuminated to be guided as a light beam to a photosensitive drum through an image forming lens. Light amount correcting members are attached to a movable member movably attached relatively to the image forming lens. The movable member moves in the optical axis direction in accordance with movement of the image forming lens, and one of the light amount correcting members farther from the image forming lens is caused to face a corresponding surface of the image forming lens so as to intercept a part of the light beam from the image in association with the movement of the movable member. The other of the light amount correcting members closer to the image forming lens is caused to retract from a corresponding surface of the image forming lens in association with the movement of the movable member.
摘要翻译： 在图像读取装置中，通过图像形成透镜照射图像作为光束被引导到感光鼓。 光量校正构件附接到可移动地相对于成像透镜安装的可动构件。 可移动构件根据成像透镜的移动沿光轴方向移动，并且使距离图像形成透镜更远的光量校正构件中的一个面对图像形成透镜的相应表面，以截取 与来自可动构件的移动相关联的来自图像的光束的一部分。 使得靠近图像形成透镜的光量校正构件中的另一个与可动构件的移动相关联地从成像透镜的相应表面缩回。
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9.发明授权
公开(公告)号：US5760930A
公开(公告)日：1998-06-02
申请号：US465911
申请日：1995-06-06
CPC分类号： H04N1/40012
摘要： An image forming apparatus which varies the blending ratio by which color-seperated image signals are blended together to form a monochromatic image. The apparatus inputs a plurality of image signals which have been color-separated, and synthesizes the plurality of image signals by blending to form a monochromatic image. A density regulating mechanism regulates the density of the monochromatic image to a predetermined density level, and the apparatus varies the blending ratio of the synthesized plurality of image signals based on the predetermined density level.
摘要翻译： 一种图像形成装置，其将分色图像信号混合在一起的混合比率变化，形成单色图像。 该装置输入已经被颜色分离的多个图像信号，并且通过混合来合成多个图像信号以形成单色图像。 密度调节机构将单色图像的浓度调节到预定浓度水平，并且该装置基于预定的浓度水平改变合成的多个图像信号的混合比。
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