US 11,729,879 B2
Systems and methods for controlling color temperature
Thomas M. Shearer, Macungie, PA (US); Arya Abraham, Bethlehem, PA (US); Ethan C. Biery, Orefield, PA (US); Timothy P. Gredler, Center Valley, PA (US); and Juha Mikko Hakkarainen, Palm Beach Gardens, FL (US)
Assigned to Lutron Technology Company LLC
Filed by Lutron Technology Company LLC, Coopersburg, PA (US)
Filed on Feb. 14, 2022, as Appl. No. 17/670,674.
Application 17/670,674 is a continuation of application No. 17/035,127, filed on Sep. 28, 2020, granted, now 11,252,798.
Application 17/035,127 is a continuation of application No. 16/534,921, filed on Aug. 7, 2019, granted, now 10,791,599, issued on Sep. 29, 2020.
Application 16/534,921 is a continuation of application No. 15/996,569, filed on Jun. 4, 2018, abandoned.
Application 15/996,569 is a continuation of application No. 15/583,689, filed on May 1, 2017, granted, now 9,992,841, issued on Jun. 5, 2018.
Application 15/583,689 is a continuation of application No. 15/350,507, filed on Nov. 14, 2016, granted, now 9,668,315, issued on May 30, 2017.
Application 15/350,507 is a continuation of application No. 14/255,845, filed on Apr. 17, 2014, granted, now 9,538,603, issued on Jan. 3, 2017.
Claims priority of provisional application 61/814,109, filed on Apr. 19, 2013.
Prior Publication US 2022/0167476 A1, May 26, 2022
Int. Cl. H05B 45/22 (2020.01); H05B 45/20 (2020.01); H05B 47/11 (2020.01); H05B 47/105 (2020.01); H05B 45/10 (2020.01); H05B 45/28 (2020.01); H05B 47/115 (2020.01)
CPC H05B 45/22 (2020.01) [H05B 45/10 (2020.01); H05B 45/20 (2020.01); H05B 47/105 (2020.01); H05B 47/11 (2020.01); H05B 45/28 (2020.01); H05B 47/115 (2020.01); Y02B 20/40 (2013.01)] 25 Claims
OG exemplary drawing
 
1. A color temperature-controlled lighting system, comprising:
a plurality of lighting fixtures communicatively coupled via a network, each of the lighting fixtures including:
a plurality of light emitting diodes (LEDs);
LED driver circuitry operatively coupled to the plurality of LEDs;
communications interface circuitry;
memory circuitry to store a color temperature output data table that includes data representative of a color temperature output as a function of luminous intensity of each of the plurality of LEDs; and
control circuitry communicatively coupled to the LED driver circuitry, the communications interface circuitry, and to the memory circuitry, the control circuitry to, responsive to receipt of a signal that includes a color temperature output target value:
determine, using the stored color temperature output data table, a respective luminous intensity for each of the plurality of LEDs based on the received color temperature output target value; and
communicate one or more control signals to the LED driver circuitry to cause each of the plurality of LEDs to produce the respective determined luminous output intensity such that the lighting fixture produces a luminous output having the received color temperature target value; and
communicate, via the communications interface circuitry, the color temperature output target value to at least one other of the plurality of lighting fixtures.