Patent ID: 7377653
Filing Date: 2008-05-27
Classification: G02B,H04N

Abstract:
1. A color display apparatus having a virtual single light origin, comprising: an illumination lens system for converting a plurality of light beams, which are radiated from a plurality of light sources, into linear, parallel light beams; a combining system for producing a plurality of diffracted light beams having a plurality of diffraction orders by modulating each of the parallel light beams incident from the illumination lens, and outputting the plurality of diffracted light beams so that the diffracted light beams have a same virtual light origin and are adjacently located, said combining system comprising diffractive light modulators to modulate the parallel light beams, at least one of the diffractive light modulators is disposed at an inclined angle, said inclined angle selected so that the diffractive light beams emanating from the combining system appear to originate at a single point source of light; a Fourier filter for passing only some of the diffracted light beams, which have desired diffraction orders, therethrough; and a projection system for focusing the diffracted light beams, which are passed through the Fourier filter, on an object, and then allowing the focused diffracted light beams to scan the object.