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:
Apr. 29, 2014
Filed:
Aug. 10, 2011
Applicants:
Dongxue Wang, Lexington, MA (US);
Matthew a Stough, Exeter, NH (US);
Martin Zachau, Geltendorf, DE;
Inventors:
Assignee:
Osram Sylvania Inc., Danvers, MA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F21V 7/04 (2006.01);
U.S. Cl.
CPC ...
Abstract
There is herein described a light engine that emits a light. The light engine includes a light source, a light guide, a plurality of extraction optical elements, and a plurality of phosphors. The light guide receives the light. The extraction optical elements are on the surface of the light guide. The extraction optical elements extract at least a portion of the light out of the light guide. The phosphors are disposed on top of at least some of the extraction optical elements.