Patent ID: 7126649

Claim:
A projection system comprising: a plurality of light-producing portions, each of the light-producing portions operable to produce modulated light of certain color spectra; a light-directing element operable to receive the modulated light spectra from the light-producing portions and to combine those modulated light spectra; and a projection lens operable to project the combined modulated light spectra onto a display surface; wherein at least one of the plurality of light-producing portions comprises: a light source operable to produce light; a first panel, operable to receive light from the light source and to modulate the received light; and a first oblique anisotropic compensation element adjacent to the first panel, the first oblique anisotropic compensation element being operable with the projection lens to provide an azimuthally averaged, improved contrast image upon the display surface relative to an uncompensated image, wherein the improvement to the image on the display surface is relatively independent of the point of view of an observer.