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    Light guide and image reader
    132.
    发明申请
    Light guide and image reader 失效

    公开(公告)号：US20060159393A1

    公开(公告)日：2006-07-20

    申请号：US10562336

    申请日：2004-06-18

    Applicant: Makoto Ikeda

    Inventor： Makoto Ikeda

    IPC: G02B6/26

    CPC classification number: H04N1/0318 ,  H04N2201/03112 ,  H04N2201/03125 ,  H04N2201/03141 ,  H04N2201/03145 ,  H04N2201/0317 ,  H04N2201/03195

    Abstract: A light guide emits lights incident on an end face from an emitting face extending longitudinally of the guide, while having the lights reflected by its internal face. A sectional shape of the guide in a direction orthogonal to the longitudinal direction of this light guide has two opposite parabolas, a line segment connecting the focal points of the two opposite parabolas, and a line segment (bottom face) corresponding to the emitting face. A scattering pattern consisting of white ink is formed on the line segment (bottom face) connecting the focal points. With this guide, the face of a document is to be efficiently illuminated by conversely utilizing the characteristic of the compound parabolic concentrator (CPC) to convert scattered lights extending over a full angle from a limited area into radiant lights confined to a prescribed emission angle and thereby minimizing the expansion of lights.

    Optical conduction unit and image reader using the same
    135.
    发明申请
    Optical conduction unit and image reader using the same 有权
    光传导单元和图像读取器使用相同

    公开(公告)号：US20060050390A1

    公开(公告)日：2006-03-09

    申请号：US10538240

    申请日：2003-12-10

    Applicant: Hideki Sawada

    Inventor： Hideki Sawada

    IPC: G02B5/12

    CPC classification number: H04N1/02815 ,  H04N1/0318 ,  H04N2201/02495 ,  H04N2201/03112 ,  H04N2201/03125 ,  H04N2201/03133 ,  H04N2201/03141 ,  H04N2201/03145

    Abstract: An optical conduction unit (U) has a configuration in which one portion (Sb) and another portion (58a) of an optical conduction body (5) are mated in mutually orthogonal x, y directions with first and second fitting means (64), (64a) of the first member (60A) of a reflector (6). A portion (65b) and another portion (65c) of the second member (60B) of the reflector (6) are mated in the x, y directions with the third and fourth fitting means (64b), (64c) of the first member (60A). With such a configuration, the reflector (6) and optical conduction body (5) can be reliably assembled so that they cannot be easily separated.

    Abstract translation: 光传导单元（U）具有其中一个部分（Sb）和光导体（5）的另一部分（58a）在相互正交的x，y方向上与第一和第二拟合装置（64）配合的构造， ，反射器（6）的第一构件（60A）的（64a）。 反射器（6）的第二构件（60B）的一部分（65b）和另一部分（65c）与第三和第四装配装置（64b）在x，y方向上配合（64c ）的第一构件（60A）。 通过这样的结构，可以可靠地组装反射器（6）和光导体（5），使得它们不容易分离。

    Image reader and image processor having a light source forming trapezoid-shaped illuminance distribution in sub-scanning direction
    136.
    发明申请
    Image reader and image processor having a light source forming trapezoid-shaped illuminance distribution in sub-scanning direction 失效
    具有沿副扫描方向形成梯形照度分布的光源的图像读取器和图像处理器

    公开(公告)号：US20050213169A1

    公开(公告)日：2005-09-29

    申请号：US11128329

    申请日：2005-05-13

    Applicant: Tetsuroh Nakamura ,  Masaichiro Tatekawa

    Inventor： Tetsuroh Nakamura ,  Masaichiro Tatekawa

    IPC: G02B3/00 ,  G02B6/036 ,  G02B6/08 ,  H04N1/031 ,  H04N1/04

    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。

    Line-illuminating device and image-scanning device incorporating the same
    137.
    发明申请
    Line-illuminating device and image-scanning device incorporating the same 审中-公开
    线照明装置和包含该线照明装置的图像扫描装置

    公开(公告)号：US20050206800A1

    公开(公告)日：2005-09-22

    申请号：US11057652

    申请日：2005-02-14

    Applicant: Masahide Wakisaka ,  Makoto Ikeda

    Inventor： Masahide Wakisaka ,  Makoto Ikeda

    IPC: G03B27/54 ,  F21V8/00 ,  F21Y101/02 ,  G02F1/1333 ,  H04N1/028 ,  H04N1/031 ,  H04N1/04

    CPC classification number: H04N1/02835 ,  H04N1/02815 ,  H04N1/0284 ,  H04N1/0289 ,  H04N1/0318 ,  H04N2201/03112 ,  H04N2201/03125 ,  H04N2201/03141 ,  H04N2201/03145

    Abstract: A line-illuminating device is provided in an image-scanning device such that the end of a transparent light guide is not disengaged from a casing and uniformity of the light amount can be achieved. A rib is formed unitarily with a resin mold which constructs a light source unit so as to cover an end of a light-emitting plane of the transparent light guide. The end of the light guide can be prevented from being disengaged from the casing by the rib. Another rib is formed unitarily with the end of the casing on the opposite side of the light source unit. This rib covers an opposite end of the light-emitting plane of the transparent light guide, and prevents the opposite end of the light guide from being disengaged from the casing.

    Abstract translation: 线照明装置设置在图像扫描装置中，使得透明导光体的端部不脱离壳体，并且可以实现光量的均匀性。 与构成光源单元的树脂模具整体形成肋以覆盖透明导光体的发光平面的端部。 可以防止导光体的端部通过肋从壳体脱离。 另一个肋与光源单元的相反侧上的壳体的端部一体地形成。 该肋部覆盖透明导光体的发光面的相对端，防止光导体的另一端从壳体脱离。

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