US 11,913,639 B2
Lighting systems for general illumination and disinfection
Eran Ben-Shmuel, Rosh Haain (IL); Ada Lotan, Rosh Haain (IL); Alexander Bilchinsky, Rosh Haain (IL); Eran Efrati, Rosh Haain (IL); Jonathan Stok, Rosh Haain (IL); Yossi Bechor, Rosh Haain (IL); Yoav Bar, Rosh Haain (IL); and Noam Meir, Rosh Haain (IL)
Filed by JUGANU LTD., Rosh Haain (IL)
Filed on Jun. 21, 2022, as Appl. No. 17/845,299.
Application 17/845,299 is a continuation of application No. 17/209,435, filed on Mar. 23, 2021, granted, now 11,391,439.
Application 17/209,435 is a continuation in part of application No. 16/850,760, filed on Apr. 16, 2020, granted, now 11,006,493, issued on May 11, 2021.
Application 16/850,760 is a continuation in part of application No. 16/750,031, filed on Jan. 23, 2020.
Application 16/750,031 is a continuation of application No. 16/425,083, filed on May 29, 2019, granted, now 10,582,586, issued on Mar. 3, 2020.
Claims priority of provisional application 62/993,295, filed on Mar. 23, 2020.
Claims priority of provisional application 62/811,551, filed on Feb. 28, 2019.
Claims priority of provisional application 62/677,405, filed on May 29, 2018.
Claims priority of application No. 2013198 (GB), filed on Aug. 24, 2020.
Prior Publication US 2022/0325870 A1, Oct. 13, 2022
Int. Cl. H05B 45/20 (2020.01); F21V 9/30 (2018.01); F21K 9/64 (2016.01); F21K 9/68 (2016.01); F21V 8/00 (2006.01)
CPC F21V 9/30 (2018.02) [F21K 9/64 (2016.08); F21K 9/68 (2016.08); G02B 6/0073 (2013.01); H05B 45/20 (2020.01)] 19 Claims
OG exemplary drawing
 
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.