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.

Date of Patent:
Oct. 11, 2016

Filed:

Sep. 25, 2009
Applicants:

Antony Paul Van DE Ven, Hong Kong, CN;

Paul Kenneth Pickard, Morrisville, NC (US);

James Michael Lay, Cary, NC (US);

Wai Kwan Chan, Hong Kong, CN;

Inventors:

Antony Paul Van De Ven, Hong Kong, CN;

Paul Kenneth Pickard, Morrisville, NC (US);

James Michael Lay, Cary, NC (US);

Wai Kwan Chan, Hong Kong, CN;

Assignee:

Cree, Inc., Durham, NC (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01J 61/52 (2006.01); F21V 29/74 (2015.01); F21S 8/02 (2006.01); F21V 29/00 (2015.01); F21K 99/00 (2016.01); F21V 29/77 (2015.01); F21Y 101/02 (2006.01);
U.S. Cl.
CPC ...
F21V 29/74 (2015.01); F21K 9/137 (2013.01); F21K 9/54 (2013.01); F21S 8/02 (2013.01); F21S 8/026 (2013.01); F21V 29/004 (2013.01); F21V 29/745 (2015.01); F21V 29/77 (2015.01); F21Y 2101/02 (2013.01);
Abstract

A lighting device comprising at least a first light source and at least one heat sink element that is removable, that comprises an first inner region and an first outer region, that is identical in shape to another heat sink element, that is in thermal contact with a trim element, that is stacked, that is in thermal contact with at least a first portion of a first surface of the trim element, that has a cross-sectional area at a first distance from an axis of a trim element that is larger than at a shorter distance, and/or that maintains a junction temperature of a lighting device at or below a recommended junction temperature. Also, a lighting device comprising at least a first light source, a trim element, a driver sub-assembly and a spacer element positioned between the trim element and the driver sub-assembly. Also, methods of dissipating heat.


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