Patent ID: 11913639
Assignee: nan
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC F  A  G  H  Y | IPC F  H

Claim 0:
1. A lighting device producing white light having a target color correlated temperature (CCT) value and UV-A radiation, the device comprising:
a first plurality of LEDs emitting light at a first wavelength corresponding to red light, a second plurality of LEDs emitting light at a second wavelength different from the first wavelength, and a plurality of UV-A LEDs emitting UV radiation having a peak wavelength between approximately 315 nm and approximately 420 nm;
at least one photoluminescent material for shifting a CCT value of at least the second plurality of LEDs to produce white light; and
a waveguide material having (i) a mixing region for mixing shifted and unshifted light so as to generate white light having the target CCT value and (ii) an output region for outputting the white light,
wherein the output white light has a color rendering index of at least 85 and a color consistency below 3 standard deviation color matching units.