Image processing apparatus and image reading method

    公开(公告)号:US11457116B2

    公开(公告)日:2022-09-27

    申请号:US17338683

    申请日:2021-06-04

    IPC分类号: H04N1/00

    摘要: An image processing apparatus includes an invisible light source configured to emit invisible light to a subject, a visible light source configured to emit visible light to the subject, an invisible image reading sensor configured to read invisible reflection light reflected from the subject and acquire an invisible image, and a visible image reading sensor configured to read visible reflection light reflected from the subject and acquire a visible image. The invisible reflection light is a part of the invisible light emitted from the invisible light source. The visible reflection light is a part of the visible light emitted from the visible light source. The image processing apparatus further includes circuitry configured to restore information lost in the invisible image acquired by the invisible image reading sensor.

    Photoelectric conversion element, image reading device, image forming apparatus, image reading method, and computer-readable recording medium

    公开(公告)号:US10298866B2

    公开(公告)日:2019-05-21

    申请号:US15387074

    申请日:2016-12-21

    摘要: A photoelectric conversion element includes: light receiving elements that convert an optical signal into an electrical signal per pixel; offset fixing units that fix an offset of an output level of each of the light receiving elements to a reference level; analog/digital conversion units that convert signals respectively corresponding to a signal level being converted from an optical signal and output by the light receiving elements and a reset level output independent of an optical signal, into digital signals, according to the reference level; amplifier units that amplify a signal; and correlated double sampling units that perform correlated double sampling per each of the light receiving elements by using a signal based on the reset level and a signal based on the signal level, wherein the amplifier units amplify the signal corresponding to the reset level and the signal corresponding to the signal level before implementing the correlated double sampling.

    Photoelectric conversion element, image reading device, and image forming apparatus

    公开(公告)号:US10103192B2

    公开(公告)日:2018-10-16

    申请号:US15376074

    申请日:2016-12-12

    摘要: A photoelectric conversion element includes a plurality of light-receiving elements, a plurality of pixel circuits, and a plurality of storage units. The light-receiving elements are aligned in a predetermined alignment direction for each color of light to be received, to receive and convert the light into electric charge. The pixel circuits are disposed respectively adjacent to the plurality of light-receiving elements, to convert the electric charge generated by the corresponding light-receiving element into a voltage signal. The storage units are disposed respectively corresponding to the plurality of the pixel circuits, to store therein the voltage signal generated by the corresponding pixel circuit. The storage units are disposed in an adjacent region that is adjacent to a photoelectric conversion region in which the light-receiving elements and the pixel circuits are disposed.

    Photoelectric conversion element, image reading device, and image forming apparatus
    70.
    发明授权
    Photoelectric conversion element, image reading device, and image forming apparatus 有权
    光电转换元件,图像读取装置和图像形成装置

    公开(公告)号:US09491327B2

    公开(公告)日:2016-11-08

    申请号:US14847038

    申请日:2015-09-08

    IPC分类号: H04N1/03

    摘要: A photoelectric conversion element comprises: a plurality of photodetectors that perform photoelectric conversion per pixel to output an analog image signal, and that are arranged on a straight line; and wirings that are formed on a wiring layer, and that are enabled to be used as at least one of a signal line used in a peripheral circuit of the photodetector, a power source, and a ground, wherein the photodetector is formed to have a first shaded region and a second shaded region in which light is shaded by the wirings that are positioned on the straight line sandwiching an opening, respectively, when light that has passed through the opening that opens being sandwiched by the wirings positioned on the straight line is incident perpendicularly on a light receiving surface of the photodetector.

    摘要翻译: 光电转换元件包括:多个光电检测器,每像素执行光电转换以输出模拟图像信号,并且布置在直线上; 以及形成在布线层上的布线,并且能够用作用于光电检测器,电源和地的外围电路中的信号线中的至少一个,其中光电检测器形成为具有 第一阴影区域和第二阴影区域,其中当通过被位于直线上的布线夹持的打开的开口的光分别是位于夹着开口的直线上的布线遮光时, 垂直于光电检测器的光接收表面入射。