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High efficiency incandescent lighting

United States Patent

September 2, 2014
View the Complete Patent at the US Patent & Trademark Office
Incandescent lighting structure. The structure includes a thermal emitter that can, but does not have to, include a first photonic crystal on its surface to tailor thermal emission coupled to, in a high-view-factor geometry, a second photonic filter selected to reflect infrared radiation back to the emitter while passing visible light. This structure is highly efficient as compared to standard incandescent light bulbs.
Bermel; Peter (Cambridge, MA), Ilic; Ognjen (Quincy, MA), Chan; Walker R. (Cambridge, MA), Musabeyoglu; Ahmet (Cambridge, MA), Cukierman; Aviv Ruben (McLean, VA), Harradon; Michael Robert (Cambridge, MA), Celanovic; Ivan (Cambridge, MA), Soljacic; Marin (Belmont, MA)
Massachusetts Institute of Technology (Cambridge, MA)
13/ 732,541
January 2, 2013
This invention was made with government support under Contract No. W911NF-07-D-0004 awarded by the Army Research Office and under Grant Nos. DE-SC0001299 and DE-FG02-09ER46577 awarded by the Department of Energy. The government has certain rights in the invention.