Patent ID: 7506998

Claim:
An illumination system comprising: a plurality of first light-collimating sections and a light-mixing section, the first light-collimating sections being arranged substantially parallel to each other along a longitudinal axis of the illumination system, each of the first light-collimating sections being associated with at least one light emitter, each of the light emitters being in optical contact with the respective light-collimating section via a dielectric material with a refractive index larger than or equal to 1.3, the first light-collimating sections merging into the light-mixing section at a side facing away from the light emitters, the first light-collimating sections and the light-mixing section forming one integral part, light propagation in the light-mixing section being based on total internal reflection, and the light mixing section having a plurality of faces parallel to the longitudinal axis, wherein the light-mixing section at the side facing away from the light emitters comprises a second light-collimating section.