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:
Dec. 10, 2013
Filed:
Nov. 09, 2009
Bernd Schoenfelder, Aachen, DE;
Manfred Westemeyer, Aldenhoven, DE;
Klaus Schoeller, Nideggen, DE;
Kirsten G. Baeumges, Viersen, DE;
Manfred Ruske, Kerpen, DE;
Konrad Sell, Aachen, DE;
Bernd Schoenfelder, Aachen, DE;
Manfred Westemeyer, Aldenhoven, DE;
Klaus Schoeller, Nideggen, DE;
Kirsten G. Baeumges, Viersen, DE;
Manfred Ruske, Kerpen, DE;
Konrad Sell, Aachen, DE;
Koninklijke Philips N.V., Eindhoven, NL;
Abstract
It is provided a lamp, particularly halogen lamp, for a headlight of a motor vehicle, comprising a light source () for emitting mainly white light, a mainly transparent envelope () encapsulating the light source () and a filter element () provided at the envelope (), wherein the filter element () is adapted for deflecting visible light of a predefined wavelength interval such, that mainly blue light can be provided above a bright/dark-cutoff (). Since the deflected bluish light is above the bright/dark-cutoff () an oncoming driver recognizes earlier the light. At the same time the oncoming driver is not blinded by the blue light above the bright/dark-cutoff (), since not the whole emitted light () but only a smaller wavelength interval is directed above the bright/dark-cutoff ().