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. 24, 2018
Filed:
Jan. 19, 2015
Applicant:
Philips Lighting Holding B.v., Eindhoven, NL;
Inventors:
Tim Dekker, Eindhoven, NL;
Haoyang Shi, Eindhoven, NL;
Hendrik Jan Eggink, Eindhoven, NL;
Wei Gu, Eindhoven, NL;
Quingqing Jiang, Eindhoven, NL;
Assignee:
PHILIPS LIGHTING HOLDING B.V., Eindhoven, NL;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F21S 4/00 (2016.01); F21K 9/237 (2016.01); F21V 29/00 (2015.01); F21K 9/90 (2016.01); F21V 29/60 (2015.01); F21V 29/78 (2015.01); F21V 29/83 (2015.01); F21K 9/232 (2016.01); F21K 9/238 (2016.01); F21K 9/235 (2016.01); F21V 3/02 (2006.01); F21V 23/00 (2015.01); F21Y 115/10 (2016.01); F21Y 107/40 (2016.01);
U.S. Cl.
CPC ...
F21K 9/237 (2016.08); F21K 9/232 (2016.08); F21K 9/235 (2016.08); F21K 9/238 (2016.08); F21K 9/90 (2013.01); F21V 3/02 (2013.01); F21V 23/005 (2013.01); F21V 29/004 (2013.01); F21V 29/60 (2015.01); F21V 29/78 (2015.01); F21V 29/83 (2015.01); F21Y 2107/40 (2016.08); F21Y 2115/10 (2016.08);
Abstract
An LED light bulb has LEDs () mounted on a tubular carrier () with open ends. The tube () functions as a chimney to promote cooling by creating convection currents through the chimney. The cooling can be entirely passive or it may be active by incorporating a fan ().