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    • 62. 发明申请
    • Line Illuminating Device
    • 线路照明装置
    • US20090073716A1
    • 2009-03-19
    • US12284019
    • 2008-09-17
    • Makoto IkedaAtsuya Kanno
    • Makoto IkedaAtsuya Kanno
    • G02B5/02
    • G02B19/0066G02B6/0036G02B19/0028G02B27/0994H04N1/02815H04N1/02835H04N1/0289
    • There is provided a line illuminating device in which a rod-shaped light guiding member is incorporated, the light guiding member producing substantially no color variation in the vicinity of the end on which light is incident. A light scattering pattern 20 for scattering incident light is integrally formed in a bottom surface 11b of a rod-shaped light guiding member 11. The light scattering pattern 20 is comprised of a large number of recesses 21. The recess 21 is shaped into a triangular groove with its longitudinal direction being the short-side direction of the light guiding member 11. Inclined surfaces 22, 22 that form the triangular groove have a large number of minute recesses 23 formed integrally therewith. Each of the minute recesses 23 is a triangular groove along the longitudinal direction of the recess 21.
    • 提供一种线照明装置,其中结合有杆状导光构件,导光构件在光入射端部附近基本上不产生颜色变化。 用于散射入射光的光散射图案20一体地形成在棒状导光构件11的底面11b中。光散射图案20由多个凹部21组成。凹部21成形为三角形 槽的纵向是导光构件11的短边方向。形成三角形槽的斜面22,22具有与其一体形成的大量微小凹部23。 每个微小凹部23是沿着凹部21的长度方向的三角形槽。
    • 68. 发明申请
    • IMAGE READING APPARATUS AND IMAGE FORMING APPARATUS
    • 图像读取装置和图像形成装置
    • US20080231917A1
    • 2008-09-25
    • US12046794
    • 2008-03-12
    • Hajime TSUKAHARA
    • Hajime TSUKAHARA
    • H04N1/04
    • H04N1/00002H04N1/00013H04N1/00034H04N1/0005H04N1/00063H04N1/00068H04N1/00925H04N1/02835H04N1/1013H04N1/193H04N2201/0081
    • An image reading apparatus has a plurality of emitters that emit light onto a manuscript surface in a light quantity that is the synthesized light quantity of light emitted from the plurality of emitters. In the image reading apparatus, determination on the abnormality of a reference white data level value at the time of turning on a power supply is carried out through comparison between the reference white data level value with a predetermined absolute value. A normal reference white data level value is stored in a first storing unit, while a comparison white data level value detected at the time of manuscript reading operation is stored in a second storing unit. Then, a differential between the level values stored in the first and second storing units is calculated, and an abnormality determining unit compares the differential with a predetermined threshold to detect the abnormality of an emitter.
    • 图像读取装置具有以从多个发射体发出的光的合成光量的光量向原稿面发光的多个发光体。 在图像读取装置中,通过比较具有预定绝对值的参考白色数据电平值来执行在接通电源时对参考白色数据电平值的异常的确定。 正常参考白色数据电平值存储在第一存储单元中,而在原稿读取操作时检测到的比较白色数据电平值被存储在第二存储单元中。 然后,计算存储在第一和第二存储单元中的电平值之间的差分,并且异常确定单元将差分与预定阈值进行比较以检测发射器的异常。