A light source having emissions in a plurality of spectral bands. The simplest light source according to the present invention is constructed from first and second light sources and a dichroic beam splitter. The first and second solid state light sources emit light in first and second bands of non or...http://www.google.fr/patents/US6273589?utm_source=gb-gplus-shareBrevet US6273589 - Solid state illumination source utilizing dichroic reflectors
Solid state illumination source utilizing dichroic reflectors
