Patent ID: 6014202
Filing Date: 2000-01-11
Classification: B41J,H04N

Abstract:
An optical system for transferring an image onto a medium having an imaging area, the optical system comprising:a lens system in optical communication with the medium;a light source comprising a plurality of light emitting diodes in optical communication with the lens system wherein at least three of a plurality of light emitting diodes emit different colored light, a number C of different colors being known, a one of the at least three of the plurality of light emitting diodes having a nominal height h.sub.nom, measured in a direction of a central axis of the light source, centers of the at least three of the plurality of light emitting diodes being positioned from one another at a distance S, in the direction of the central axis, so that an imaged line can move in constant relative motion with respect to the medium while reproducing the image upon the medium whereby the distance S is determined from the equation S=h.sub.nom (N+1/C), where N is an integer; anda spatial light modulator in optical communication with the light source extending across the imaging area of the medium in a direction perpendicular to a direction of movement during imaging.