| 摘要 |
The invention aims at obtaining an original illuminating apparatus and an image reader having the same with which "the reflection" phenomenon is reduced, and much quantity of light for illumination is obtained in an area to be read of an original to thereby be able to perform the reading operation at high speed. In order to attain the above object, an original illuminating apparatus for illuminating image information for use in an image reader for imaging the image information on a reading unit through a reading lens to read the image information in accordance with the line sequential method includes a plurality of tubular light sources arranged in column style and having the spectral characteristics of substantially the same color which are arranged on one side of the spaces obtained by partitioning thereinto the whole space lying below an original stage glass member with a plane including a main scanning direction and a plane perpendicular to that plane such that parts of their tube diameters overlap one another in an optical axis direction.
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