公开(公告)号：US09338322B2

公开(公告)日：2016-05-10

申请号：US14299532

申请日：2014-06-09

Applicant: CANON KABUSHIKI KAISHA

Inventor： Tadao Hayashide

IPC: H04N1/04 ,  H04N1/028 ,  H04N1/00

CPC classification number: H04N1/02885 ,  H04N1/00827 ,  H04N1/0281 ,  H04N1/02825 ,  H04N1/02835 ,  H04N1/0284 ,  H04N1/0285 ,  H04N1/0289 ,  H04N1/02895 ,  H04N2201/0432

Abstract: An image reading device includes a platen on which an original is to be placed, an illuminating unit configured to illuminate the original, a linear sensor configured to receive light from the original, an optical unit configured to guide the light from the original to the linear sensor, and an aligning portion configured to determine a position of the original in a long-side direction of the linear sensor. The illuminating unit includes a light-guiding member extending in the long-side direction of the linear sensor, and a light source provided only at one long-side end of the light-guiding member. The aligning portion is provided on a side opposite to the light source in the long-side direction of the light-guiding member.

Abstract translation: 图像读取装置包括要放置原件的压板，被配置为照亮原稿的照明单元，被配置为从原稿接收光的线性传感器，被配置为将来自原稿的光引导到线性的光学单元 传感器和配置成确定原稿在线性传感器的长边方向上的位置的对准部。 照明单元包括沿着线性传感器的长边方向延伸的导光构件和仅设置在导光构件的一个长边侧的光源。 对准部设置在与导光部件的长边方向的光源相反的一侧。

公开(公告)号：US20140362423A1

公开(公告)日：2014-12-11

申请号：US14299532

申请日：2014-06-09

Applicant: CANON KABUSHIKI KAISHA

Inventor： Tadao Hayashide

IPC: H04N1/028

CPC classification number: H04N1/02885 ,  H04N1/00827 ,  H04N1/0281 ,  H04N1/02825 ,  H04N1/02835 ,  H04N1/0284 ,  H04N1/0285 ,  H04N1/0289 ,  H04N1/02895 ,  H04N2201/0432

Abstract: An image reading device includes a platen on which an original is to be placed, an illuminating unit configured to illuminate the original, a linear sensor configured to receive light from the original, an optical unit configured to guide the light from the original to the linear sensor, and an aligning portion configured to determine a position of the original in a long-side direction of the linear sensor. The illuminating unit includes a light-guiding member extending in the long-side direction of the linear sensor, and a light source provided only at one long-side end of the light-guiding member. The aligning portion is provided on a side opposite the light source in the long-side direction of the light-guiding member.

Abstract translation: 图像读取装置包括要放置原件的压板，被配置为照亮原稿的照明单元，被配置为从原稿接收光的线性传感器，被配置为将来自原稿的光引导到线性的光学单元 传感器和配置成确定原稿在线性传感器的长边方向上的位置的对准部。 照明单元包括沿着线性传感器的长边方向延伸的导光构件和仅设置在导光构件的一个长边侧的光源。 对准部分设置在光源的与导光部件的长边方向相反的一侧。

公开(公告)号：US20130163054A1

公开(公告)日：2013-06-27

申请号：US13675148

申请日：2012-11-13

Applicant: CANON KABUSHIKI KAISHA

Inventor： Tadao Hayashide

IPC: H04N1/409

CPC classification number: H04N1/409 ,  H04N1/00013 ,  H04N1/00031 ,  H04N1/0005 ,  H04N1/00063 ,  H04N1/00068 ,  H04N1/00076 ,  H04N1/00082 ,  H04N1/1017 ,  H04N1/193 ,  H04N2201/0081

Abstract: A method detects the floating amount of an original from an original table based on image information read by an image reading apparatus having the original table on which the original is placed, a line sensor, and a lens array arranged in a direction of arrangement of pixels of the line sensor. The method includes obtaining image information of the original as line image information by performing scanning in the direction of arrangement of pixels of the line sensor, extracting a distinguishing portion from the line image information, detecting a characteristic frequency by frequency analysis of image information of the distinguishing portion, and determining the floating amount of the original from the characteristic frequency.

Abstract translation: 一种方法是基于由具有放置了原稿的原始表的图像读取装置读取的图像信息，沿着像素排列方向排列的行传感器和透镜阵列，从原始表检测原稿的浮动量 的线传感器。 该方法包括：通过沿线阵传感器的像素的排列方向执行扫描，从行图像信息中提取辨别部分，通过频率分析来检测特征频率，从而获得原始图像的图像信息， 识别部分，并根据特征频率确定原稿的浮动量。

公开(公告)号：US20170374222A1

公开(公告)日：2017-12-28

申请号：US15623843

申请日：2017-06-15

Applicant: CANON KABUSHIKI KAISHA

Inventor： Tadao Hayashide

IPC: H04N1/028 ,  H04N1/00 ,  H04N1/10

CPC classification number: H04N1/0281 ,  H04N1/00816 ,  H04N1/10 ,  H04N2201/0081

Abstract: An image reading method in the present invention includes: obtaining a pickup image by performing image pickup of an object mounted on a mounting surface with an imaging unit; and extracting an image of the object from the pickup image, based on a brightness difference between the image of the object and an image of a shadow of the object in the pickup image.

公开(公告)号：US20180020123A1

公开(公告)日：2018-01-18

申请号：US15520880

申请日：2015-11-19

Applicant: CANON KABUSHIKI KAISHA

Inventor： Tadao Hayashide

IPC: H04N1/48 ,  H04N1/195 ,  G03B17/54 ,  H04N1/00 ,  G03B21/10

CPC classification number: H04N1/484 ,  G03B15/05 ,  G03B17/54 ,  G03B21/10 ,  H04N1/00933 ,  H04N1/19594 ,  H04N2201/0081 ,  H04N2201/0084 ,  H04N2201/0436 ,  H04N2201/0452 ,  H04N2201/0458

Abstract: Provided is an image reading apparatus that can read an image with highly accurate and stable density and color while illuminating the image with a color sequential projector thereof. The image reading apparatus according to the present invention includes: an image pickup unit configured to image an original that is mounted on a mounting surface; a projecting unit configured to project an image on the mounting surface by sequentially switching and emitting light of a plurality of colors; and a control unit configured to control the projecting unit so as to project a first black image, a first color image, and a second black image in this order during the imaging by the image pickup unit.

公开(公告)号：US08958132B2

公开(公告)日：2015-02-17

申请号：US14023004

申请日：2013-09-10

Applicant: Canon Kabushiki Kaisha

Inventor： Tadao Hayashide

IPC: H04N1/04 ,  H04N1/00 ,  H04N1/409

CPC classification number: H04N1/00909 ,  H04N1/00013 ,  H04N1/00037 ,  H04N1/00063 ,  H04N1/00082 ,  H04N1/4097

Abstract: The image reading apparatus includes a light transmissive member, a first light source causing a first light to enter the light transmissive member from a first side face of side faces thereof, a second light source illuminating a document laid on an upper face of the light transmissive member with a second light, an image sensor photoelectrically converting an optical image, and an imaging optical system forming on image sensor the object image with light exiting from the light transmissive member. The first light source is disposed such that the first light emitted therefrom and entering the light transmissive member from the first side face satisfies a total reflection condition at the upper and lower faces of the light transmissive member.

Abstract translation: 图像读取装置包括透光构件，使第一光源从其侧面的第一侧面进入透光构件的第一光源，照射放置在透光性的上表面上的文件的第二光源 具有第二光的成员，光学图像的光电转换的图像传感器，以及利用从透光部件出射的光在图像上对成像进行成像的成像光学系统。 第一光源被布置成使得从第一侧面射出并进入透光构件的第一光线在透光构件的上表面和下表面处满足全反射条件。

公开(公告)号：US20130107333A1

公开(公告)日：2013-05-02

申请号：US13661216

申请日：2012-10-26

Applicant: Canon Kabushiki Kaisha

Inventor： Tadao Hayashide ,  Takeyoshi Saiga ,  Ikutaro Mitsutake

IPC: H04N1/10

CPC classification number: G02B26/0816 ,  G02B17/008 ,  G02B17/023 ,  G02B17/0663 ,  G02B17/0848 ,  G02B17/0888 ,  H04N1/0301 ,  H04N1/0303 ,  H04N1/0305 ,  H04N1/1043 ,  H04N1/1052 ,  H04N2201/02493

Abstract: An image reading optical system, including: an imaging optical system used for imaging a slit area of a document and includes an optical element having different cross section shapes in a main scanning direction and in a sub-scanning direction; an aperture stop; and an optical phase changing filter disposed adjacent to the aperture stop and including a phase lead area and a phase delay area, in which the optical phase changing filter includes a surface shape component that is symmetric only with respect to a predetermined plane including a surface normal at the center of the incident beam and one of the main scanning direction and the sub-scanning direction, and with respect to a surface that includes the surface normal at the center of the incident beam and is perpendicular to the predetermined plane, one side is the phase lead area, and another side is the phase delay area.

Abstract translation: 一种图像读取光学系统，包括：成像光学系统，用于对原稿的狭缝区域进行成像，并且包括在主扫描方向和副扫描方向上具有不同截面形状的光学元件; 孔径光阑; 以及与所述孔径光阑相邻设置的光学相变滤光器，其包括相位引导区域和相位延迟区域，其中所述光学相变滤光器包括仅对于包括表面法线的预定平面对称的表面形状分量 在入射光束的中心和主扫描方向和副扫描方向之一，并且相对于包括在入射光束的中心处的表面法线并且垂直于预定平面的表面， 相位引导区域，另一侧是相位延迟区域。

公开(公告)号：US09083840B2

公开(公告)日：2015-07-14

申请号：US14197787

申请日：2014-03-05

Applicant: CANON KABUSHIKI KAISHA

Inventor： Ikutaro Mitsutake ,  Tadao Hayashide ,  Narumasa Ito

IPC: H04N1/04 ,  H04N1/028 ,  F21V9/04 ,  F21V13/08 ,  F21V9/06 ,  G01J3/00

CPC classification number: H04N1/02815 ,  F21V9/04 ,  F21V9/06 ,  F21V13/08 ,  G01J3/00

Abstract: An illumination device and an image reading apparatus having improved heat resistance and spectral characteristics are provided. An illumination device used in an image reading apparatus that moves relative to a read area of a document includes: a light source; a light guide including an incident surface on which light from the light source is incident and an exit surface from which light from the light source exits; and a spectroscopic unit that is provided between the light source and the light guide and includes, on a surface of a glass substrate facing the light source, a multi-layer film for reflecting infrared light toward the light source.

Abstract translation: 提供了具有改善的耐热性和光谱特性的照明装置和图像读取装置。 在图像读取装置中使用的相对于原稿的读取区域移动的照明装置包括：光源; 光导，其包括入射表面，来自所述光源的光入射到所述入射表面，以及出射表面，来自所述光源的光从所述出射表面离开; 以及分光单元，其设置在所述光源和所述导光体之间，并且在面向所述光源的玻璃基板的表面上包括用于将红外光朝向所述光源反射的多层膜。

公开(公告)号：US08885220B2

公开(公告)日：2014-11-11

申请号：US13675148

申请日：2012-11-13

Applicant: Canon Kabushiki Kaisha

Inventor： Tadao Hayashide

IPC: H04N1/40 ,  H04N1/193 ,  H04N1/00 ,  H04N1/409 ,  H04N1/10

CPC classification number: H04N1/409 ,  H04N1/00013 ,  H04N1/00031 ,  H04N1/0005 ,  H04N1/00063 ,  H04N1/00068 ,  H04N1/00076 ,  H04N1/00082 ,  H04N1/1017 ,  H04N1/193 ,  H04N2201/0081

Abstract: A method detects the floating amount of an original from an original table based on image information read by an image reading apparatus having the original table on which the original is placed, a line sensor, and a lens array arranged in a direction of arrangement of pixels of the line sensor. The method includes obtaining image information of the original as line image information by performing scanning in the direction of arrangement of pixels of the line sensor, extracting a distinguishing portion from the line image information, detecting a characteristic frequency by frequency analysis of image information of the distinguishing portion, and determining the floating amount of the original from the characteristic frequency.

Abstract translation: 一种方法是基于由具有放置了原稿的原始表的图像读取装置读取的图像信息，沿着像素排列方向排列的行传感器和透镜阵列，从原始表检测原稿的浮动量 的线传感器。 该方法包括：通过沿线阵传感器的像素的排列方向执行扫描，从行图像信息中提取辨别部分，通过频率分析来检测特征频率，从而获得原始图像的图像信息， 识别部分，并根据特征频率确定原稿的浮动量。