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:
Nov. 09, 2010
Filed:
May. 02, 2008
Brian Roberge, Franklin, MA (US);
Ron Roberts, Medford, MA (US);
Igor Shikh, Newton, MA (US);
Ihor Lys, Milton, MA (US);
Brad Koerner, Boston, MA (US);
Tomas Mollnow, Somerville, MA (US);
Brian Roberge, Franklin, MA (US);
Ron Roberts, Medford, MA (US);
Igor Shikh, Newton, MA (US);
Ihor Lys, Milton, MA (US);
Brad Koerner, Boston, MA (US);
Tomas Mollnow, Somerville, MA (US);
Koninlijke Philips Electronis N.V., Eindhoven, NL;
Abstract
LED-based lighting fixtures suitable for general illumination in surface-mount or suspended installations, in which heat dissipation properties of the fixtures are significantly improved by decreasing thermal resistance between LED junctions and the ambient air. In various examples, improved heat dissipation is accomplished by increasing a surface area of one or more heat-dissipating elements proximate a trajectory of air flow through the fixture. In one aspect, various structural components of the fixtures are particularly configured to create and maintain a 'chimney effect' within the fixture, resulting in a high air-flow rate, natural convection cooling system capable of efficiently dissipating the waste heat from the fixture without active cooling.