The present invention provides a polarized colored light source for a display system in which light of other polarization states and colors are recycled. The color can be scrolled synchronously with a display. In one embodiment, the invention includes a tunnel having an entrance aperture facing a lamp...http://www.google.es/patents/US7312913?utm_source=gb-gplus-sharePatente US7312913 - Imaging light source with polarization and color recovery
Imaging light source with polarization and color recovery
