Patent ID: 7440151

Claim:
An image reading apparatus which includes illuminating means for illuminating image information of an original placed on an original support, image forming means for forming an image of the image information on reading means, and two-dimensionally reads the image information by changing a relative position between the image information and the reading means, wherein said illuminating means includes a first light source portion and a second light source portion; and a first reflective portion and a second reflective portion each of which is provided corresponding to said first and second light source portions and adapted to reflect light from said first and second light source portions toward a side of the image information, respectively, and wherein the first and second reflective portions are disposed asymmetrically with respect to an optical axis of said image forming means in a sub-scanning cross-sectional plane so that a specular reflection light having been emitted from the first light source portion and reflected on the original is not incident on the second light source portion and a specular reflection light having been emitted from the second light source portion and reflected on the original is not incident on the first reflective portion.