Diffractive deflection beam scanning system

Abstract

A diffractive deflection beam scanning system including: a plurality of light sources; a deflection disc rotatably mounted over the light sources, having patterns capable of diffracting and deflecting beams emitted from the light sources; a plurality of first reflecting mirrors for changing the traveling paths of beams diffracted and deflected by the deflection disc; a plurality of second reflecting mirrors for reflecting the beams reflected by the first reflecting mirrors in a beam scan direction, wherein the light sources are disposed in a straight line along a bisecting line of the deflection disc, perpendicular to the beam scan direction, and the second reflecting mirrors are arranged over the center of the deflection disc at different heights.

Dependencies are inferred from the claim text.