| 摘要 |
PROBLEM TO BE SOLVED: To provide an image reader that realizes a stable lighting system having high efficiency, without being affected by component precision, mounting accuracy and accuracy of a lamp or the like. SOLUTION: In the image reader that reads an image by forming an image light of an original image lighted by a lighting optical system onto a read means via an image forming optical system, the lighting optical system is characterized in the provision of a light source 3, reflection members 1, 2 that collect the light emitted from the light source 3 directed toward the original, and adjustment devices 4, 5, 8 that adjust the angle of the reflection members.
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