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    Image forming lens unit and image reading apparatus using the same
    146.
    发明申请
    Image forming lens unit and image reading apparatus using the same 失效
    图像形成透镜单元和使用其的图像读取装置

    公开(公告)号：US20030112522A1

    公开(公告)日：2003-06-19

    申请号：US10356175

    申请日：2003-01-30

    Applicant: Rohm Co., Ltd.

    Inventor： Hisayoshi Fujimoto

    IPC: G02B027/10

    CPC classification number: G02B3/0031 ,  G02B3/005 ,  G02B3/0056 ,  G02B3/0062 ,  G02B3/0068 ,  G02B3/0075 ,  H04N1/0314 ,  H04N1/0318 ,  H04N1/1215 ,  H04N2201/03112 ,  H04N2201/0312 ,  H04N2201/03133 ,  H04N2201/03141 ,  H04N2201/03145 ,  H04N2201/0315 ,  H04N2201/03154 ,  H04N2201/0317 ,  H04N2201/03187 ,  H04N2201/04758

    Abstract: A lens unit (U15) includes a housing (45), an upper and a lower lens arrays (A1null, A2null), and a first and a second prisms (4A, 4B). Each of the lens arrays includes a plurality of lenses, a light-shielding member (4), and a plurality of positioning projections, all of which are integral with each other. Downwardly traveling light which enters the housing (45) through a first slit (45c) formed at an upper portion of the housing (45) is directed upward by the first prism (4A) to pass through the two lens arrays (A1null, A2null). The light is then directed downward by the second prism (4B) to exit the housing through a second slit (45d) formed at a lower portion of the housing (45).

    Abstract translation: 透镜单元（U15）包括壳体（45），上部和下部透镜阵列（A1'，A2'）以及第一和第二棱镜（4A，4B）。 每个透镜阵列包括多个透镜，遮光构件（4）和多个定位突起，它们都彼此成一体。 通过形成在壳体（45）的上部的第一狭缝（45c）进入壳体（45）的向下行进的光由第一棱镜（4A）向上引导以穿过两个透镜阵列（A1'，A2 '）。 然后，光通过第二棱镜（4B）向下引导，通过形成在壳体（45）的下部的第二狭缝（45d）离开壳体。

    Image processor,its image reader and fiber lens,and method of manufacturing fiber lens
    148.
    发明申请
    Image processor,its image reader and fiber lens,and method of manufacturing fiber lens 失效
    图像处理器，其图像读取器和光纤透镜以及制造光纤透镜的方法

    公开(公告)号：US20020148951A1

    公开(公告)日：2002-10-17

    申请号：US10088112

    申请日：2002-03-15

    Inventor： Tetsuroh Nakamura ,  Masaichiro Tatekawa

    IPC: H01J003/14 ,  H01J005/16

    CPC classification number: H04N1/0318 ,  G02B3/0056 ,  G02B6/08 ,  H04N1/0312 ,  H04N2201/02493 ,  H04N2201/03112 ,  H04N2201/03141 ,  H04N2201/03145 ,  H04N2201/03187

    Abstract: An image reader for reading an image drawn on a paper or a sheet-like recording medium, an image processor provided with the image reader, such as a copying machine, a scanner and the like, and a fiber lens to be applied to those devices. The image processor has to be large in the whole size of device to read both sides of an original. Therefore, the image processor of the present invention comprises an image reader (10a) on the upper side of transport path and an image reader (10b) on the lower side of that respectively. In order to downsize the device, it is necessary to shorten the diameter of optical fiber (140) of the fiber lens (14) installed in the imager reader as light receiving means. In this case, the optical fiber (140) is provided with a light-absorbing layer 8 (143) around of the optical fiber (140) in order to restrain the crosstalk and the flare phenomenon. The illuminance of light source means (15) installed in the image reader gets smaller as the device is downsized. In case where the illuminance is small, the image quality is deteriorated by the floating of the original. Accordingly, the image reader should be provided with the light source means so as to uniform the illuminance over a specific width of the main and sub scanning directions. Therefore, it is possible to avoid the deterioration of the image quality.

    Abstract translation: 用于读取在纸张或片状记录介质上绘制的图像的图像读取器，设置有诸如复印机，扫描仪等的图像读取器的图像处理器和应用于这些设备的光纤透镜 。 图像处理器必须在设备的整体大小上读取原稿的两面。 因此，本发明的图像处理器包括在传送路径的上侧的图像读取器（10a）和位于其下侧的图像读取器（10b）。 为了减小装置的尺寸，需要缩短安装在成像器读取器中的光纤透镜（14）的光纤（140）的直径作为光接收装置。 在这种情况下，光纤（140）在光纤（140）周围设置有光吸收层8（143），以抑制串扰和闪光现象。 安装在图像读取器中的光源装置（15）的照度随着装置的小型化而变小。 在照度较小的情况下，由于原稿的浮动，图像品质恶化。 因此，图像读取器应该设置有光源装置，以便在主扫描和副扫描方向的特定宽度上使照度均匀。 因此，可以避免图像质量的劣化。

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