Patent ID: 7220002
Filing Date: 2007-05-22
Classification: G03B

Abstract:
1. A color separation and/or synthesis system for receiving at least two incident light beams whose wavelengths are different from each other, comprising: a wavelength-splitting element that reflects linearly polarized light of one wavelength and transmits light of another wavelength; and a polarization-transforming element that changes the direction of polarization of linearly polarized light of one wavelength and that is arranged adjacent and at least nearly parallel to the wavelength-splitting element; wherein a linearly polarized light beam of one wavelength that is incident on the color separation and/or synthesis system, is emitted from the color separation and/or synthesis system with a direction of linear polarization that is different from its direction of linear polarization upon incidence, and a linearly polarized light beam of another wavelength that is incident on the color separation and/or synthesis system is emitted from the color separation and/or synthesis system in a different direction than its direction of propagation upon incidence.