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. 30, 2021
Filed:
Apr. 16, 2020
Applicant:
Lumileds Llc, San Jose, CA (US);
Inventors:
Michael Deckers, Aachen, DE;
Benno Spinger, Aachen, DE;
Assignee:
Lumileds LLC, San Jose, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 33/46 (2010.01); H01L 33/50 (2010.01); F21S 41/153 (2018.01); H01L 25/075 (2006.01); F21S 41/24 (2018.01);
U.S. Cl.
CPC ...
H01L 33/465 (2013.01); F21S 41/153 (2018.01); F21S 41/24 (2018.01); H01L 25/0753 (2013.01); H01L 33/505 (2013.01);
Abstract
A lighting device is provided comprising at least one light-emitting element comprising a light-emitting surface configured to emit light; and a light-guiding sheet at least partially covering the light-emitting surface and comprising at least one cavity forming a passage for light emitted from the light-emitting surface. Thereby, at least one lateral surface limiting the at least one cavity is configured to reflect light emitted from the light-emitting surface. Further, a size of an opening of the at least one cavity facing the light-emitting surface is smaller than an area of the light-emitting surface.