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:
Mar. 24, 2009
Filed:
Aug. 18, 2005
Johannes Petrus Maria Ansems, Eindhoven, NL;
Christoph Gerard August Hoelen, Eindhoven, NL;
Ad Van Den Brandt, Eindhoven, NL;
Jorrit Ernst DE Vries, Eindhoven, NL;
Johannes Petrus Maria Ansems, Eindhoven, NL;
Christoph Gerard August Hoelen, Eindhoven, NL;
Ad Van Den Brandt, Eindhoven, NL;
Jorrit Ernst De Vries, Eindhoven, NL;
Koninklijke Philips Electronics, N.V., Eindhoven, NL;
Abstract
An illumination system has a plurality () of light-collimating sections (″) and a light-mixing section (). The light-collimating sections are arranged substantially parallel to each other along a longitudinal axis () of the illumination system. Each of the light-collimating sections is associated with at least one light emitter (R, G, B). Each of the light emitters is 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. At a side facing away from the light emitters, the light-collimating sections merge into the light-mixing, the light-collimating sections and the light-mixing section forming one integral part. Light propagation in the light-mixing section is based on total internal reflection and the light-mixing section has a plurality of faces parallel to the longitudinal axis. Preferably, the light-mixing section at a side facing away from the light emitters is provided with a further light-collimating section.