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:
May. 26, 2026
Filed:
Feb. 28, 2022
Lisa Dräxlmaier Gmbh, Vilsbiburg, DE;
Alexandr Zaviyalov, Vaterstetten, DE;
Josef Kiermaier, Unterdietfurt, DE;
Michael Windl, Landshut, DE;
Dietmar Graf, Taufkirchen, DE;
Manfred Winklbauer, Landshut, DE;
Bernhard Bayersdorfer, Baierbach, DE;
Lisa Dräxlmaier GmbH, Vilsbiburg, DE;
Abstract
The invention relates to a lighting device () with a flat light guide () which has a protective layer () directly connected to a light guide core () on its light exit side () at least in a visible area (), into which light () from at least one light source () can be coupled via the light guide core () via at least one coupling-in side (), and which has a coupling-out structure () on its rear side () opposite the light exit side (), which structure is set up to deflect light (), as a result of which the deflected light () can be coupled into the light guide core () via at least one coupling-in side (). () emerges from the light guide () into the environment via the light exit side (), and with a housing () which covers the rear side () at least in overlap with the entire visible area () of the light guide () on a side facing away from the light exit side () and is connected to the light guide () in a dust-proof and contamination-proof manner.