A beam splitter and method for separating a polychromatic light beam into a plurality of spatially and spectrally separated color component beams which are focused at a common image plane. The beam splitter includes a plurality of dichroic surfaces which each reflect light in a first spectral range,...http://www.google.es/patents/US5541771?utm_source=gb-gplus-sharePatente US5541771 - Beam splitter for use in a color imaging assembly
