Patent ID: 7995252
Filing Date: 2011-08-09
Classification: H04N

Abstract:
1. An image reading apparatus reading, as respective targets, light passing through respective images on respective documents, each document scattering and transmitting incident light, said image reading apparatus comprising: an illuminating optical system having a document conveying control system for conveying documents through said image reading apparatus in a subscanning direction, perpendicular to the scanning direction, and for passing the documents through a document reading position located near a light emergent surface of said light guide member from which the rays of light from said plurality of light sources emerge; an image reading optical system comprising: a cylindrical lens array having a plurality of ridge lines, each ridge line running along the subscanning direction, the plurality of ridge lines being aligned in the scanning direction, and located in said light emergent surface of the light guide member from which the rays of light from said plurality of light sources emerge.