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. 04, 2020
Filed:
Oct. 02, 2017
Hella Kgaa Hueck & Co., Lippstadt, DE;
Heinz-Michael Dirks, Lippstadt, DE;
Frank Schoening, Rheda-Widenbrueck, DE;
Markus Stuhldreher, Olsberg, DE;
Andreas Suray, Paderborn, DE;
Franz-Georg Willeke, Anroechte, DE;
Hella KGaA Hueck & Co., Lippstadt, DE;
Abstract
A light guide for a lighting device, wherein the light guide extends along a longitudinal axis and has a coupling-out area which runs over the longitudinal axis and from which light can be emitted along the longitudinal axis, and wherein the light guide has, in its longitudinal extent, an end region which is provided with a cover in order to suppress high-intensity light emission in the end region. The cover is formed by laser-machining the light guide material in the end region of the light guide. The invention further relates to a method for forming a cover in the end region of the light guide.