US 11,859,778 B2
Color separation lighting devices
Robert Soler, San Marcos, CA (US); Eric Schafer, Carlsbad, CA (US); Erica Voss, San Diego, CA (US); Michael Phillips, New York, NY (US); and Duncan Jackson, Holland, MI (US)
Assigned to Biological Innovation and Optimization Systems, LLC, Carlsbad, CA (US)
Filed by Biological Innovation and Optimization Systems, LLC, Carlsbad, CA (US)
Filed on Dec. 21, 2022, as Appl. No. 18/069,825.
Application 18/069,825 is a continuation of application No. 16/591,444, filed on Oct. 2, 2019, granted, now 11,578,841.
Claims priority of provisional application 62/835,150, filed on Apr. 17, 2019.
Prior Publication US 2023/0127048 A1, Apr. 27, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. F21K 9/65 (2016.01); F21K 9/68 (2016.01); F21V 3/06 (2018.01); F21V 9/02 (2018.01); F21K 9/66 (2016.01); H05B 45/10 (2020.01); H05B 47/16 (2020.01); F21Y 113/13 (2016.01); F21Y 115/10 (2016.01)
CPC F21K 9/65 (2016.08) [F21K 9/66 (2016.08); F21K 9/68 (2016.08); F21V 3/0625 (2018.02); F21V 9/02 (2013.01); H05B 45/10 (2020.01); H05B 47/16 (2020.01); F21Y 2113/13 (2016.08); F21Y 2115/10 (2016.08)] 19 Claims
OG exemplary drawing
 
1. A lighting apparatus comprising:
a first light engine that produces a first light spectrum having a first correlated color temperature (CCT), the first light spectrum comprising a first emission peak in a first wavelength range of 450 nm to 480 nm and a second emission peak in a second wavelength range of 380 nm to 420 nm;
a second light engine that produces a second light spectrum having a second CCT, the second light spectrum having a third emission peak in a third wavelength range of 480 nm to 500 nm and a fourth emission peak in the first wavelength range of 450 nm to 480 nm, wherein the second CCT is less than the first CCT and a difference between the first CCT and the second CCT is at least 10,000 K; and
an enclosure around the first light engine and the second light engine, the enclosure having an optical diffuser, wherein the optical diffuser is positioned over a first region, a second region and a third region of the enclosure;
wherein:
the first region and the second region are separated by the third region;
the first light spectrum is primarily emitted from the first region of the enclosure;
the second light spectrum is primarily emitted from the second region of the enclosure;
a mixture of the first light spectrum and the second light spectrum is emitted from the third region of the enclosure; and
a total melanopic to photopic ratio (M/P ratio) emitted by the lighting apparatus and received by a user is greater than 1.0.