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US 7,441,934 B2Granted
Lamp system
AssigneeKoninklijke Philips Electronics N.V.
InventorRobert Peter Scholl
Life of this patent
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Abstract
A lamp system has a first light source which radiates light of a first chromaticity coordinate and a second light source which radiates light of a second chromaticity coordinate. The lamp system also includes an optical component for additively mixing the light of the two light sources. The optical component includes an optical waveguide with two different kinds of scattering centers for mixing the light as desired.
Claims13
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.
2 more elements
Dependencies are inferred from the claim text.