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(12) United States Patent (10) Patent N0.: US 8,789,978 B2 Tickner Et Al

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(12) United States Patent (10) Patent N0.: US 8,789,978 B2 Tickner Et Al USOO8789978B2 (12) United States Patent (10) Patent N0.: US 8,789,978 B2 Tickner et al. (45) Date of Patent: *Jul. 29, 2014 (54) LIGHT EMITTING DIODE RECESSED (52) US. Cl. LIGHT FIXTURE USPC .......... .. 362/294; 362/364; 362/365; 362/373 _ _ (58) Field of Classi?cation Search (71) Apphcamsger?dDTIQ?$s Newngn’ if (chl; USPC ........... .. 362/249.02, 364, 365, 368, 294, 373 60 3V] egnel‘, eaC fee 1 , S f 1 t h t ' G A (Us); Evans Edward Thompson, ee app 10a 10n e or comp e e searc IS ory HI’ Falrbum’ GA (Us) (56) References Cited (72) Inventors: Jerold Tickner, Newnan, GA (US); U_g_ PATENT DOCUMENTS Scott David Wegner, Peachtree City, GA (US); Evans Edward Thompson, 1,197,187 A 9/1916 Crown?eld HI, Fairburn, GA (Us) 1,281,752 A 10/1918 Bailey (Continued) (73) Assignee: Cooper Technologies Company, Houston, TX (US) FOREIGN PATENT DOCUMENTS ( * ) Notice: Subject to any disclaimer, the term of this CN 2516813 10/2002 patent is extended or adjusted under 35 CN 1793719 60006 U.S.C. 154(b) by 0 days. (Continued) This patent is subject to a terminal dis- OTHER PUBLICATIONS claimer_ International Search Report ?led in PCT/US2010/042442; mailed Dec. 31, 2010. (21) Appl. No.: 13/735,655 (Continued) (22) Flled: Jan' 7’ 2013 Primary Examiner * Thomas Sember (65) Prior Publication Data (74) Attorney, Agent, or Firm * King & Spalding LLP US 2013/0235587 A1 Sep. 12, 2013 (57) ABSTRACT thdU.S.Al - t - Dt A recessed light ?xture includes an LED module ’ which e a 6 PP lea 10n a a includes a single LED package that is con?gured to generate (63) Continuation of application No. 13/431,439, ?led on all light emitted by the recessedlight ?xture. For example, the Mar. 27, 2012, now Pat. No. 8,348,477, which is a LED package can include multiple LEDs mounted to a com continuation of application No. 13/ 109,490, ?led on mon substrate. The LED package can be coupled to a heat May 17, 2011, now Pat. No. 8,348,479, which is a sink for dissipating heat from the LEDs. The heat sink can continuation of application No. 12/235,116, ?led on include a core member from which ?ns extend. Each ?n can Sep. 22, 2008, now Pat. No. 7,959,332. include one or more straight and/ or curved portions. A re?ec (60) Provisional application No. 61/065,914, ?led on Feb. tor h-OHSlng may be coupled to the heat smk and con?gured to 1 5 2008 . 1 1. N 61/090 391 rece1ve a re?ector. The re?ector can have any geometry, such , s Provmona app 19m?“ 0' _ _ ’ ’ as a bell-shaped geometry including two radii of curvature ?led on Aug 20’ 2008> PrOVISIOnal appllcanQQ NO- that join together at an in?ection point. An optic coupler can 61010,?49, ?led on Jan 9, 2008, MOI/151011211 be coupled to the re?ector housing and con?gured to cover apphcatlon NO- 60/994,792, ?led on seP~ 21, 2007- electrical connections at the substrate and to guide light emit ted by the LED package. (51) Int. Cl. F21 V29/00 (2006.01) 20 Claims, 12 Drawing Sheets US 8,789,978 B2 Page2 (56) References Cited 7,686,483 B1 3/2010 Aubrey 7,722,227 B2 5/2010 Zhang etal. 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