US Patent No. 10,883,704

HOMOGENIZATION SYSTEM FOR AN LED LUMINAIRE


Patent No. 10,883,704
Issue Date January 05, 2021
Title Homogenization System For An Led Luminaire
Inventorship Pavel Jurik, Prostredni Becva (CZ)
Josef Valchar, Prostredni Becva (CZ)
Assignee Robe Lighting s.r.o., Roznov pod Radhostem (CZ)

Claim of US Patent No. 10,883,704

1. A light source, comprising:a first array of light emitting diodes (LEDs) mounted on a first common substrate, the first array of LEDs:
emitting beams whose optical axes are substantially parallel,
comprising first and second sets of LEDs, the first and second sets of LEDs producing light of first and second colors, respectively, and
comprising a first plurality of zones, each zone of the first plurality of zones spatially separated from other zones of the first plurality of zones, each zone of the first plurality of zones including LEDs from each of the first and second sets of LEDs, the LEDs of each zone of the first plurality of zones configured for intensity control independent from intensity control of the LEDs of other zones of the first plurality of zones;
a second array of LEDs mounted on a second common substrate, the second array of LEDs:
emitting beams whose optical axes are substantially parallel,
comprising third and fourth sets of LEDs, the third and fourth sets of LEDs producing light of third and fourth colors, respectively,
comprising a second plurality of zones, each zone of the second plurality of zones spatially separated from other zones of the second plurality of zones, each zone of the second plurality of zones including LEDs from each of the third and fourth sets of LEDs, the LEDs of each zone of the second plurality of zones configured for intensity control independent from intensity control of the LEDs of other zones of the second plurality of zones;
a third array of LEDs mounted on a third common substrate, the third array of LEDs:
emitting beams whose optical axes are substantially parallel,
comprising a fifth set of LEDs producing light of a fifth color;
comprising a third plurality of zones, each zone of the third plurality of zones spatially separated from other zones of the third plurality of zones, each zone of the third plurality of zones including LEDs from the fifth set of LEDs, the LEDs of each zone of the third plurality of zones configured for intensity control independent from intensity control of the LEDs of other zones of the third plurality of zones; and
a beam combiner configured to combine light beams from the first, second, and third arrays of LEDs to produce an emitted beam of light, the beam combiner configured to maintain the optical axes of the light beams from each of the first, second, and third arrays of LEDs as substantially parallel to each other in the emitted beam of light, the emitted beam of light comprising a fourth plurality of zones, each zone in the fourth plurality of zones of the emitted beam of light comprising superimposed light from one zone in each of the first, second, and third pluralities of zones.