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    • 24. 发明授权
    • Illumination device, image reading apparatus having the device and information processing system having the apparatus
    • 照明装置,具有该装置的图像读取装置和具有该装置的信息处理系统
    • US06346997B1
    • 2002-02-12
    • US09152323
    • 1998-09-14
    • Shinichi TakedaHidemasa MizutaniNoriyuki KaifuIsao Kobayashi
    • Shinichi TakedaHidemasa MizutaniNoriyuki KaifuIsao Kobayashi
    • H04N104
    • H04N1/02835H04N1/02815Y10S362/80
    • Illumination device, image apparatus using the device and information processing system using the apparatus for illuminating a light beam emitted from at least two light emitting elements of different light emission wavelength ranges to an original through a light conductor prevent irregularity of illumination on the original without providing compensation means to attain improvement in color discrimination ability of a color document sheet read signal without increasing a cost. A light beam applied from an illumination device 30 arranged at an end of a light conductor 3 is scattered and reflected by a scatter and reflection area 5 of the light conductor to illuminate the original 100. The illumination device 30 has at least two light emitting elements 81G and 81R of different light emission wavelength ranges and centers of the light emitting elements are arranged at positions spaced from a normal line passing through a center of the scatter and reflection area 5.
    • 照明装置,使用该装置的信息处理系统的图像装置以及使用将从不同发光波长范围的至少两个发光元件发射的光束通过光导体照射到原件的装置的装置,防止原始照明的不规则,而不提供 补偿意味着在不增加成本的情况下获得彩色文档片读取信号的颜色辨别能力的提高。 从布置在光导体3的端部的照明装置30施加的光束被光导体的散射和反射区域5散射并反射,以照亮原件100.照明装置30具有至少两个发光元件 不同发光波长范围的81G和81R和发光元件的中心布置在与通过散射和反射区域5的中心的法线隔开的位置处。