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    • 3. 发明授权
    • Illuminator, and image reading device and image forming apparatus having the same
    • 照明器,以及具有该照明器的图像读取装置和图像形成装置
    • US08358450B2
    • 2013-01-22
    • US12606434
    • 2009-10-27
    • Kyung Rok Kim
    • Kyung Rok Kim
    • H04N1/04
    • G03G15/0266G02B6/0001G03G15/04036H04N1/02815H04N1/0282H04N1/02835H04N1/0289H04N1/04
    • Disclosed are an illuminator and an image forming apparatus employing an illuminator. The illuminator includes a light guide to guide light generated from a light source to an object to be illuminated. The light guide includes at least one incidence face facing the light source and an emission face configured to emit the light to the target object. A diffusion pattern may be formed on the emission face to extend from one longitudinal end to the other longitudinal end of the emission face. The emission face may have a constant cross section or a varying cross section along a longitudinal direction thereof. The illuminator may be part of an image reading device to uniformly or near uniformly irradiate light to a document. The illuminator may also be incorporated in an image forming apparatus to irradiate light to a photosensitive body for elimination or reduction of electric potential from the photosensitive body.
    • 公开了一种照明器和采用照明器的图像形成装置。 照明器包括将从光源产生的光引导到被照明物体的光导。 光导包括面向光源的至少一个入射面和被配置为将光发射到目标物体的发射面。 扩散图案可以形成在发射面上,以从发射面的一个纵向端延伸到另一个纵向端。 发射面可以具有恒定的横截面或沿着其纵向方向的变化的横截面。 照明器可以是图像读取装置的一部分,以均匀或接近均匀地将光照射到文件。 照明器也可以结合在图像形成装置中以将光照射到感光体上,以消除或降低来自感光体的电位。
    • 5. 发明申请
    • Image scanning apparatus and method
    • 图像扫描装置及方法
    • US20110149306A1
    • 2011-06-23
    • US12926870
    • 2010-12-14
    • Kyung-rok Kim
    • Kyung-rok Kim
    • H04N1/04G06K15/02
    • H04N1/02815H04N1/02835H04N1/0311H04N1/0312H04N1/1017H04N1/193H04N1/40056H04N1/484
    • An image scanning apparatus and method. The image scanning apparatus which scans an image of document includes a light source including at least three light emitting elements of red, green, and blue, which are sequentially lit up at intervals of a first time, a light emitting time control unit to control a light emitting time of the at least three light emitting elements such that the first time is shorter than a second time by a predetermined value, a sensor array to transform an image formed by light reflected from the document into an electric signal according to results of the control of the light emitting time and the light intensity, and an output unit to output image data corresponding to the transformed electric signal.
    • 一种图像扫描装置及方法。 扫描文件图像的图像扫描装置包括:光源,其包括以第一次间隔依次点亮的红色,绿色和蓝色的至少三个发光元件;发光时间控制单元, 所述至少三个发光元件的发光时间使得所述第一时间比第二时间短一个预定值;传感器阵列,用于根据所述至少三个发光元件的结果将从所述文档反射的光形成的图像转换成电信号 控制发光时间和光强度,以及输出单元输出与变换后的电信号对应的图像数据。