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. 27, 2002
Filed:
Sep. 26, 2000
Ingolf Sischka, Aachen, DE;
Koninklijke Philips Electronics N.V., New York, NY (US);
Abstract
The invention relates to an incandescent lamp with at least one incandescent coil which can be used for generating a high beam in a motor vehicle headlight, which lamp is additionally capable of performing the function of a daytime running light. The use of a dimmed high beam as an energy-saving daytime running light (DRL) has the disadvantage of a light distribution belonging to the high beam which is unsuitable for the function of a daytime running light. Furthermore, the high beam, if it is to fulfill the requirements as regards the maximum luminous intensity of the daytime running light, would have to be so strongly dimmed that the halogen cycle in the bulb of the incandescent lamp can no longer be maintained. This will lead to blackening at the bulb inside and a shorter lamp life. To create an incandescent lamp which renders possible an improved realization of a daytime running light function in a motor vehicle headlight, an incandescent lamp is presented with at least a first incandescent coil for generating a high beam in a motor vehicle headlight and at least a second incandescent coil for generating a daytime running beam in a motor vehicle headlight.