US 12,292,184 B2
Color mixing optics for LED illumination device
Fangxu Dong, Austin, TX (US); Horace C. Ho, Austin, TX (US); and David J. Knapp, Austin, TX (US)
Assigned to Lutron Technology Company LLC, Coopersburg, PA (US)
Filed by Lutron Technology Company LLC, Coopersburg, PA (US)
Filed on Aug. 22, 2024, as Appl. No. 18/811,914.
Application 15/653,608 is a division of application No. 14/505,671, filed on Oct. 3, 2014, granted, now 9,736,895, issued on Aug. 15, 2017.
Application 18/811,914 is a continuation of application No. 18/301,578, filed on Apr. 17, 2023, granted, now 12,072,091.
Application 18/301,578 is a continuation of application No. 17/739,857, filed on May 9, 2022, granted, now 11,662,077, issued on May 30, 2023.
Application 17/739,857 is a continuation of application No. 17/013,214, filed on Sep. 4, 2020, granted, now 11,326,761, issued on May 10, 2022.
Application 17/013,214 is a continuation of application No. 16/422,927, filed on May 24, 2019, granted, now 10,767,835, issued on Sep. 8, 2020.
Application 16/422,927 is a continuation of application No. 15/653,608, filed on Jul. 19, 2017, granted, now 10,302,276, issued on May 28, 2019.
Claims priority of provisional application 61/886,471, filed on Oct. 3, 2013.
Prior Publication US 2024/0410548 A1, Dec. 12, 2024
Int. Cl. F21V 7/00 (2006.01); F21K 9/233 (2016.01); F21V 5/00 (2018.01); F21V 23/04 (2006.01); H05B 45/22 (2020.01); H05B 45/46 (2020.01); F21Y 105/10 (2016.01); F21Y 113/13 (2016.01)
CPC F21V 5/007 (2013.01) [F21K 9/233 (2016.08); F21V 5/004 (2013.01); F21V 23/0457 (2013.01); H05B 45/22 (2020.01); H05B 45/46 (2020.01); F21Y 2105/10 (2016.08); F21Y 2113/13 (2016.08)] 20 Claims
OG exemplary drawing
 
1. A light-emitting diode (LED) emitter system, comprising:
an LED array that includes N LED chains disposed on a substrate;
wherein N is a whole number greater than 2;
wherein each of the N LED chains have a different emission color;
wherein each of the N LED chains includes N LED emitters having the same emission color; and
wherein the N LED chains are disposed to form an N-sided polygonal array on the substrate;
N photodetectors disposed on the substrate;
wherein the N photodetectors are disposed evenly about the perimeter of the N-side polygonal array; and
an optical structure disposed over LED array and the N photodetectors.