US 9,810,421 B2
LED light fixture
Brian Kinnune, Racine, WI (US); Sandeep Pawar, Elmhurst, IL (US); Nicholas W. Medendorp, Jr., Raleigh, NC (US); David P. Goelz, Milwaukee, WI (US); and Nathan Snell, Raleigh, NC (US)
Assigned to Cree, Inc., Durham, NC (US)
Filed by Cree, Inc., Durham, NC (US)
Filed on May 2, 2014, as Appl. No. 14/269,077.
Prior Publication US 2015/0316249 A1, Nov. 5, 2015
Int. Cl. F21V 29/83 (2015.01); F21V 29/70 (2015.01); F21V 23/02 (2006.01); F21V 29/74 (2015.01); F21V 5/04 (2006.01); F21V 29/503 (2015.01); F21K 9/60 (2016.01); F21Y 101/02 (2006.01); F21W 131/10 (2006.01); F21Y 115/10 (2016.01)
CPC F21V 29/83 (2015.01) [F21K 9/60 (2016.08); F21V 5/04 (2013.01); F21V 23/023 (2013.01); F21V 29/503 (2015.01); F21V 29/70 (2015.01); F21V 29/74 (2015.01); F21W 2131/10 (2013.01); F21Y 2101/02 (2013.01); F21Y 2115/10 (2016.08)] 42 Claims
OG exemplary drawing
 
1. An LED light fixture comprising a pair of walls at least partially extending along a common plane at opposite sides of at least one opening permitting ambient-fluid flow through the fixture adjacent to an LED heat sink supporting at least one LED emitter and being open to ambient-fluid flow for removal of heat generated by the at least one LED during operation, one of the walls being of a second fixture portion forming a substantially closed chamber with permitted operating temperatures different than operating temperatures of the at least one LED emitter supported by the LED heat sink.