Patent ID: 7298558
Filing Date: 2007-11-20
Classification: G02B,Y10S

Abstract:
1. A method for generating color light comprising: receiving incoming light into a polarizing beam splitter/combiner; splitting the incoming light into a first element of light having a first polarization state and a second element of light having a second polarization state; selectively passing the first element of light through a first plurality of wave plates to alter the polarization state of the first element of light; selectively reflecting the first element of light off a first plurality of dichroic reflective filters, each filter reflecting a portion of the first element of light having a predetermined wavelength; selectively passing the second element of light through a second plurality of wave plates to alter the polarization state of the second element of light; selectively reflecting the second element of light off a second plurality of dichroic reflective filters, each filter reflecting a potion of the second element of light having a predetermined wavelength; and combining, in the polarizing beam splitter/combiner, reflected portions of the first element of light and reflected portions of the second element of light, to generate color light.