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:
Aug. 05, 2003
Filed:
Jun. 22, 2000
Simon H. A. Begemann, Eindhoven, NL;
Gerard Harbers, Eindhoven, NL;
Koninklijke Philips Electronics N.V., Eindhoven, NL;
Abstract
A headlamp ( ) of a vehicle ( ) has a light source ( ) comprising a plurality of opto-electronic elements ( ), preferably light-emitting diodes (LED's). At least one of these opto-electronic elements ( ) has, in operation, a luminous flux of 5 lm or higher. According to the invention, the spectral characteristic of the light beam ( ) generated by the light source ( ) depends upon the position in the light beam ( ). Preferably, the light source ( ) comprises opto-electronic elements ( ) only. The light beam comprises at least two light beam segments ( ) having essentially different spectral characteristics. Preferably, one of the light beam segments ( ) is mesotopically tuned. In particular, a first light beam segment ( ) comprises a considerable amount of white or yellow-orange light, and a second light beam segment ( ) comprises a considerable amount of blue-green light.