US 11,991,800 B2
Controllable lighting device
Matthew V. Harte, Stewartsville, NJ (US); Sharath R. Naik, Bethlehem, PA (US); Alexander S. Petersen, Bethlehem, PA (US); Ryan M. Spicer, Perkasie, PA (US); and Mark S. Taipale, Harleysville, PA (US)
Assigned to Lutron Technology Company LLC, Coopersburg, PA (US)
Filed by Lutron Technology Company LLC, Coopersburg, PA (US)
Filed on Feb. 20, 2023, as Appl. No. 18/111,733.
Application 18/111,733 is a continuation of application No. 17/647,949, filed on Jan. 13, 2022, granted, now 11,612,029.
Claims priority of provisional application 63/136,908, filed on Jan. 13, 2021.
Prior Publication US 2023/0209673 A1, Jun. 29, 2023
Int. Cl. H05B 45/20 (2020.01); F21K 9/238 (2016.01); H05B 45/10 (2020.01); F21Y 115/10 (2016.01)
CPC H05B 45/20 (2020.01) [F21K 9/238 (2016.08); H05B 45/10 (2020.01); F21Y 2115/10 (2016.08)] 24 Claims
OG exemplary drawing
 
1. A lighting device comprising:
a light source that comprises a plurality of emitter circuits that are configured to emit light, wherein a first emitter circuit is configured to emit light at a first color temperature, a second emitter circuit is configured to emit light at a second color temperature, and a third emitter circuit is configured to emit light at a third color temperature, wherein the first, second, and third color temperatures are different colors on a color path;
a plurality of drive circuits configured to control the amount of power delivered to the plurality of emitters circuits; and
a control circuit configured to control the plurality of drive circuits to adjust a present intensity of the light emitted by the light source across a dimming range;
wherein the control circuit is configured to control an amount of power delivered to the first and second emitter circuits to turn on the first and second emitter circuits while keeping the third emitter circuit off to control the light emitted by the light source between the first and second color temperatures, and control an amount of power delivered to the second and third emitter circuits to turn on the second and third emitter circuits while keeping the first emitter circuit off to control the light emitted by the light source between the second and third color temperatures.