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. 28, 2023
Filed:
Aug. 10, 2020
Applicant:
Schott Ag, Mainz, DE;
Inventors:
Frank Gindele, Schweitenkirchen, DE;
Edgar Pawlowski, Stadecken-Elsheim, DE;
Christian Rakobrandt, Schwindegg, DE;
Christoph Stangl, Buch am Erlbach, DE;
Assignee:
SCHOTT AG, Mainz, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F21V 9/32 (2018.01); F21V 8/00 (2006.01); F21V 29/502 (2015.01); F21V 29/70 (2015.01); F21Y 115/30 (2016.01);
U.S. Cl.
CPC ...
F21V 9/32 (2018.02); F21V 29/502 (2015.01); F21V 29/70 (2015.01); G02B 6/0005 (2013.01); F21Y 2115/30 (2016.08);
Abstract
A lighting device is provided that includes light emitting unit that emits primary light and a light conversion element that is illuminated with the primary light and emits secondary light of another wavelength. The light conversion element has a front side defining a primary light receiving surface that received the primary light and a secondary light emitting surface that emits the secondary light. The light conversion element has a variable thickness at the primary light receiving surface and/or in the secondary light emitting surface.