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. 06, 2001
Filed:
Apr. 26, 1999
Applicant:
Inventors:
Winfried Hardy Gauch, Magstadt, DE;
Wolfgang Robel, Filderstadt-Sielmingen, DE;
Assignee:
Reitter & Schefenacker GmbH, , DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F21V 3/300 ;
U.S. Cl.
CPC ...
F21V 3/300 ;
Abstract
A light arrangement for a vehicle has a light source mounted in a reflector. A light disc is connected to the front end of the reflector in front of the light source. At least one emitter emitting a light signal and at least one receiver receiving the light signal are provided for detecting the degree of soiling of the light arrangement. The light signal travels through the light disc by total reflection to be then received by the receiver.