Patent ID: 6288844
Filing Date: 2001-09-11
Classification: G02B,H04N

Abstract:
Spectrally selective light splitter and recombining device, which divides white light into red, green and blue light being output and recombines red, green and blue light being input substantially independently of light polarization, comprising:two coating systems, each reflecting and transmitting color selectively, said coating system being embedded in at least one transparent base body;least one of the coating systems comprising at least one layer of a material with lower refractive index as well as at least one layer of a material with higher refractive index, wherein for the lower refractive index N.sub.LS :1.7.ltoreq.N.sub.LS.ltoreq.2.1;andwherein, for a refractive index N.sub.k of the at least one transparent base body:1.52.gtoreq.N.sub.K.gtoreq.1.