公开(公告)号：US06892945B2

公开(公告)日：2005-05-17

申请号：US10278338

申请日：2002-10-23

Applicant: Kazuo Shishido

Inventor： Kazuo Shishido

IPC: G06T1/00 ,  G03G15/00 ,  H04N1/04 ,  H04N1/10 ,  H04N1/12 ,  H04N1/193 ,  G06K7/00

CPC classification number: H04N1/0464 ,  H04N1/1017 ,  H04N1/1215 ,  H04N1/193 ,  H04N2201/02497 ,  H04N2201/044 ,  H04N2201/0446

Abstract: An image reading apparatus for reading a document has an image sensor unit, which is moved along a platen glass in a sub-scanning direction, mounting an LED, a light guide and a sensor. A white reference panel for use of shading correction is provided on the platen glass on the side thereof opposite the image sensor unit. Light shield plates are provided on the platen glass on the side facing the image sensor unit along both sides of the white reference panel.

Abstract translation: 用于读取文件的图像读取装置具有沿副稿盘玻璃沿副扫描方向移动的图像传感器单元，安装LED，导光体和传感器。 在与图像传感器单元相对的一侧的压板玻璃上设置用于阴影校正的白色参考面板。 在白板参考面板两边的面对图像传感器单元的一侧的压板玻璃上设有遮光板。

公开(公告)号：US06552828B1

公开(公告)日：2003-04-22

申请号：US09340230

申请日：1999-07-01

Applicant: Jean-Marie Gatto

Inventor： Jean-Marie Gatto

IPC: H04N104

CPC classification number: H04N1/0071 ,  H04N1/00713 ,  H04N1/00734 ,  H04N1/00745 ,  H04N1/031 ,  H04N1/121 ,  H04N1/193 ,  H04N2201/02404 ,  H04N2201/02497 ,  H04N2201/0446

Abstract: A document-guiding device that clips onto the image sensor of a document scanner ensures that documents to be scanned are introduced into the scanner at an optimal angle and are applied to the transparent surface of the image sensor at an optimal pressure, thereby avoiding scratching and soiling the sensor glass surface. Moreover, the deep input guide clip includes a sharp edge that acts as a scrapper to remove or flatten protruding impurities to further reduce soiling the sensor transparent surface. The deep input guide clip has the added benefit of stopping parasitic ambient light and protecting the image sensor against hard falling objects thus avoiding breakage of the transparent surface. The deep input guide clip forms a compact enclosure that may also hold a set of document proximity sensors and associated control electronics for precisely detecting the leading edge of the document when it is introduced in the scanner, its width and its trailing edge.

Abstract translation: 夹在文件扫描仪的图像传感器上的文档引导装置确保将要扫描的文档以最佳角度引入扫描仪，并以最佳压力施加到图像传感器的透明表面，从而避免划伤和 污染传感器玻璃表面。 此外，深输入导向夹包括锋利的边缘，其作为刮板以去除或平坦化突出的杂质以进一步减少污染传感器的透明表面。 深输入导向夹具有停止寄生环境光的附加优点，并保护图像传感器免受硬物掉落，从而避免透明表面的破损。 深输入引导夹形成紧凑的外壳，其还可以保持一组文档接近传感器和相关联的控制电子装置，用于当文档被引入扫描仪，其宽度和后缘时精确地检测文档的前缘。

公开(公告)号：US20030007198A1

公开(公告)日：2003-01-09

申请号：US10180040

申请日：2002-06-27

Inventor： Atsushi Ogata

IPC: H04N001/46

CPC classification number: H04N1/00986 ,  H04N1/031 ,  H04N1/1013 ,  H04N2201/0246 ,  H04N2201/02472 ,  H04N2201/02497

Abstract: Deformation of a second optical carriage (B) due to heat is large on a (C) side where an inverter (31) is attached and small on a (D) side. A mirror supporting portion inside the second optical carriage (B) supports the mirror at one point on the (C) side and at two points on the (D) side. An angle of the reflecting mirror (8) depends on two protrusions on the (D) side where thermal deformation is small, and the mirror is supported at one point on the (C) side where thermal deformation is large. Thus, even if an angle of the mirror supporting portion (C) changes, the angle of the reflecting mirror (8) is not affected. Therefore, a change in the angle of the reflecting mirror (8) can be controlled to be small when temperature of the second optical carriage (B) rises during a reading operation, and decrease in reading accuracy due to thermal deformation of the second optical carriage (B) can be suppressed.

Abstract translation: 在（C）侧安装逆变器（31）并且在（D）侧小的情况下，由于热而导致的第二光学滑架（B）的变形大。 第二光学滑架（B）内的反射镜支撑部分在（C）侧的一点和（D）侧的两点处支撑反射镜。 反射镜（8）的角度取决于热变形小的（D）侧的两个突起，并且反射镜被支撑在热变形大的（C）侧的一点处。 因此，即使反射镜支撑部（C）的角度变化，反射镜（8）的角度也不受影响。 因此，当在读取操作期间第二光学支架（B）的温度升高时，反射镜（8）的角度的变化可以被控制得较小，并且由于第二光学支架的热变形引起的读取精度的降低 （B）可以被抑制。

公开(公告)号：US20020054387A1

公开(公告)日：2002-05-09

申请号：US09925856

申请日：2001-08-09

Inventor： Masahiko Yokota ,  Haruo Ishizuka

IPC: H04N001/46

CPC classification number: H04N1/02835 ,  H04N1/0311 ,  H04N1/0312 ,  H04N1/0315 ,  H04N2201/02497

Abstract: In a contact type image sensor including an illumination section including a light source and light guide to illuminate a document, an image sensing element for converting an optical image of the document into an electrical signal, a cylindrical rod lens for forming an optical image on the image sensing element, and a frame for integrally holding the illumination section, image sensing element, and cylindrical rod lens, the light guide has undergone antireflection treatment on a surface thereof on the document side.

Abstract translation: 在包括具有照明原稿的光源和光导的照明部的接触型图像传感器中，将用于将原稿的光学图像转换为电信号的图像感测元件，用于在原稿上形成光学图像的圆柱形棒状透镜 图像感测元件和用于整体地保持照明部分，图像感测元件和圆柱形棒状透镜的框架，光导件在其文档侧的表面上经历了抗反射处理。

公开(公告)号：US20020051239A1

公开(公告)日：2002-05-02

申请号：US09865691

申请日：2001-05-29

Inventor： Hiroshi Fukumoto ,  Mitsuhiko Fukuda

IPC: H04N001/40

CPC classification number: H04N1/0312 ,  H04N1/03 ,  H04N2201/02497 ,  H04N2201/03112 ,  H04N2201/03125 ,  H04N2201/03133 ,  H04N2201/03141 ,  H04N2201/03145

Abstract: An image reading apparatus includes a plurality of light-receiving elements, a lens array, and a light-shielding member. All of the light-receiving elements are arranged in a single line having an extremity. The light-shielding member covers one or more light-receiving elements disposed at the extremity.

Abstract translation: 图像读取装置包括多个光接收元件，透镜阵列和遮光构件。 所有的光接收元件被布置成具有末端的一条线。 遮光构件覆盖设置在末端的一个或多个光接收元件。

公开(公告)号：US5673122A

公开(公告)日：1997-09-30

申请号：US388469

申请日：1995-02-14

Applicant: Toshihiko Omori

Inventor： Toshihiko Omori

IPC: G03B27/54 ,  H04N1/028 ,  H04N1/04 ,  H04N1/40 ,  F21V7/00 ,  G02B26/02

CPC classification number: H04N1/0284 ,  H04N1/02815 ,  H04N2201/02497

Abstract: A linear light source having a relatively large numerical aperture emits reading light of a substantially fully diffused light intensity distribution toward a film original that is held between support glass panels. The reading light passes through the film original and then through a slit that is disposed as a field stop between the film original and a reading lens and positioned closely to the film original for limiting a field of view with respect to the reading light. The reading light that has passed through the slit is converged by the reading lens onto CCD line sensors each having the same field of view as that of the slit.

Abstract translation: 具有相对较大的数值孔径的线性光源朝向保持在支撑玻璃面板之间的胶片原稿发射基本上完全扩散的光强分布的读取光。 读取光通过胶片原稿，然后通过狭缝，该狭缝被设置为胶片原稿和读取透镜之间的场停止件，并且定位成紧密地贴合胶片原稿以限制相对于读取光的视野。 已经通过狭缝的读取光被读取透镜会聚到具有与狭缝相同的视场的CCD线传感器上。

公开(公告)号：US10075607B2

公开(公告)日：2018-09-11

申请号：US15444433

申请日：2017-02-28

Applicant: Konica Minolta, Inc.

Inventor： Hitoshi Asano ,  Katsuhide Sakai ,  Tomonobu Tamura ,  Harumitsu Fujimori

IPC: H04N1/04 ,  H04N1/031 ,  H04N1/028 ,  H04N1/03

CPC classification number: H04N1/0318 ,  H04N1/0285 ,  H04N1/02865 ,  H04N1/02895 ,  H04N1/0306 ,  H04N2201/0081 ,  H04N2201/02487 ,  H04N2201/02493 ,  H04N2201/02497

Abstract: A reading apparatus that reads a sheet includes: a first light emitting diode (LED) configured to emit light with a specific wavelength; a light emitting element including a second LED configured to emit light with the specific wavelength and a phosphor configured to be excited by the light emitted from the second LED; a line sensor configured to generate a reference signal according to a quantity of received light emitted from the first LED and reflected off the sheet, and also generate an image signal according to a quantity of received light emitted from the light emitting element and reflected off the sheet; and a controller configured to generate an image representing the sheet from a differential result obtained by removing a component corresponding to the reference signal from the image signal.

公开(公告)号：US09942435B1

公开(公告)日：2018-04-10

申请号：US15430575

申请日：2017-02-13

Applicant: Xerox Corporation

Inventor： Michael John Wilsher ,  Sebastián Rodrigo de Echaniz ,  Benjamin Thomas Thurnell ,  Paul Simon Golding

IPC: H04N1/04 ,  H04N1/047 ,  H04N1/00 ,  H04N1/10 ,  H04N1/031 ,  H04N1/193

CPC classification number: H04N1/047 ,  H04N1/00549 ,  H04N1/031 ,  H04N1/1061 ,  H04N1/193 ,  H04N2201/0081 ,  H04N2201/02491 ,  H04N2201/02497

Abstract: In order to mitigate image defects caused by unwanted disturbances as a carriage module travels from a continuous velocity transport module across a CVT ramp to a platen module, a bottom surface of the CVT ramp is recessed relative to bottom surfaces of the CVT glass and platen glass to facilitate a smooth transition as the CIS carriage passes the CVT ramp during scanning. An additional carriage button is also provided on the carriage surface to ensure that at least two carriage buttons are biased against the CVT-platen assembly at all times, thereby mitigating vibrational disturbance in the system during scanning motion. The carriage module may be a contact image sensor (CIS) carriage module, a Full Width Array (FWA) carriage module, or a folded Charged Coupled Device (CCD) carriage module.

公开(公告)号：US20160134250A1

公开(公告)日：2016-05-12

申请号：US15000158

申请日：2016-01-19

Applicant: Renesas Electronics Corporation

Inventor： Hitoshi Imai ,  Hirotatsu Tanaka

IPC: H03F3/08

CPC classification number: H03F3/087 ,  H03F3/082 ,  H04N1/00997 ,  H04N2201/02497 ,  H04N2201/03166

Abstract: A semiconductor device includes a first trans-impedance amplifier, a second trans-impedance amplifier, a peak hold circuit, a comparator and a threshold current setting circuit. The first trans-impedance amplifier converts a first current signal generated by a first photodiode, into which an optical signal is input, into a first voltage signal. The second trans-impedance amplifier converts a second current signal generated by a second photodiode, to which an optical signal is blocked, into a second voltage signal. The peak hold circuit holds the peak value of the first voltage signal. The comparator outputs a pulse on the basis of the first and second voltage signals. The threshold current setting circuit draws out a threshold current.

Abstract translation: 半导体器件包括第一跨阻抗放大器，第二跨阻抗放大器，峰值保持电路，比较器和阈值电流设置电路。 第一跨阻抗放大器将由输入光信号的第一光电二极管产生的第一电流信号转换为第一电压信号。 第二跨阻抗放大器将由光信号被阻挡的第二光电二极管产生的第二电流信号转换为第二电压信号。 峰值保持电路保持第一电压信号的峰值。 比较器基于第一和第二电压信号输出脉冲。 阈值电流设定电路抽出阈值电流。

公开(公告)号：US09338316B2

公开(公告)日：2016-05-10

申请号：US14210563

申请日：2014-03-14

Applicant: Daisuke Nakayama

Inventor： Daisuke Nakayama

IPC: H04N1/04 ,  H04N1/00

CPC classification number: H04N1/00588 ,  H04N1/0057 ,  H04N1/00602 ,  H04N1/00615 ,  H04N2201/02497

Abstract: An image reading apparatus includes a conveyor. The conveyor includes a first roller, a second roller, and a contact portion. The first roller is configured to rotate on a first axis. One of the second roller and the contact portion is disposed on an upstream side of the first axis along a conveyance path, and the other of the second roller and the contact portion is disposed on a downstream side of the first axis along the conveyance path. A first distance between a surface of the first roller and a surface of the second roller and a second distance between a surface of the first roller and a surface of the contact portion is fixed.

Abstract translation: 图像读取装置包括输送机。 输送机包括第一辊，第二辊和接触部。 第一辊被配置为在第一轴线上旋转。 第二辊和接触部中的一个沿着输送路径设置在第一轴的上游侧，第二辊和接触部中的另一个沿着输送路径设置在第一轴的下游侧。 第一辊的表面和第二辊的表面之间的第一距离和第一辊的表面与接触部的表面之间的第二距离是固定的。