Light amount distribution control device

摘要

A light amount distribution control device has a reflecting sheet by which light irradiated by LEDs is reflected and is radiated onto an object to be read. The light reflected by the object is made incident onto a line sensor to sense an image formed on the object. The reflecting sheet has a color distribution in which a white component increases from the center of the reflecting sheet towards the ends of the reflecting sheet. The reflecting ratio of the reflecting sheet is controlled along the longitudinal direction.