The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 08, 2011
Filed:
Aug. 19, 2005
Peter Magnee, Malden, NL;
Wibo Van Noort, Westbrook, ME (US);
Johannes Donkers, Valkenswaard, NL;
NXP B.V., Eindhoven, NL;
Abstract
The illumination system has a light source () with a plurality of light emitters (R, G, B). The light emitters comprise at least a first light-emitting diode of a first primary color and at least a second light-emitting diode of a second primary color, the first and the second primary colors being distinct from each other. The illumination system has a facetted light-collimator () for collimating light emitted by the light emitters. The facetted lightcollimator is arranged along a longitudinal axis () of the illumination system. Light propagation in the facetted light-collimator is based on total internal reflection or on reflection at a reflective coating provided on the facets of the facetted light-collimator. The facetted light-collimator merges into a facetted light-reflector () at a side facing away from the light source. The illumination system further comprises a light-shaping diffuser (). The illumination system emits light with a uniform spatial and spatio-angular color distribution.