Patent ID: 7441934

Claim:
A lamp system comprising: a first light source which radiates a first light of a first chromaticity coordinate; a second light source which radiates a second light of a second chromaticity coordinate which is different from the first chromaticity coordinate; and an optical component for additively mixing the first light and the second light to form an output light having a third chromaticity coordinate which is different from the first chromaticity coordinate and from the second chromaticity coordinate; wherein the optical component comprises an optical waveguide with scattering centers disposed, commingled in a body of the optical waveguide, scattering centers being of different kinds including a first kind of scattering centers associated with the first light source for scattering substantially only the first light of the first chromaticity coordinate and a second kind of scattering centers associated with the second light source for scattering substantially only the second light of the second chromaticity coordinate.