US 12,169,066 B2
Illumination device with elongated optical element with at least one cavity
Eric Bretschneider, Corinth, TX (US)
Assigned to Quarkstar LLC, Las Vegas, NV (US)
Appl. No. 17/282,362
Filed by Quarkstar LLC, Las Vegas, NV (US)
PCT Filed Sep. 27, 2019, PCT No. PCT/US2019/053671
§ 371(c)(1), (2) Date Apr. 1, 2021,
PCT Pub. No. WO2020/072330, PCT Pub. Date Apr. 9, 2020.
Claims priority of provisional application 62/741,493, filed on Oct. 4, 2018.
Prior Publication US 2021/0381675 A1, Dec. 9, 2021
Int. Cl. F21V 5/04 (2006.01); F21S 4/20 (2016.01); F21Y 103/10 (2016.01); F21Y 103/30 (2016.01); F21Y 115/10 (2016.01)
CPC F21V 5/043 (2013.01) [F21S 4/20 (2016.01); F21Y 2103/10 (2016.08); F21Y 2103/30 (2016.08); F21Y 2115/10 (2016.08)] 13 Claims
OG exemplary drawing
 
1. An illumination device comprising:
a plurality of light-emitting elements (LEEs);
a transparent elongate optical element including one or more cavities arranged along an elongation direction of the optical element, wherein the optical element is arranged to receive light from the LEEs through a surface extending along the elongation direction, the surface being between the LEEs and the one or more cavities; and
one or more phosphor elements arranged to receive light from the LEEs and configured to convert at least a portion of the received light into light having a second spectral power distribution different from a first spectral power distribution of the light received from the LEEs,
wherein the optical element comprises one or more indentations and the phosphor elements are arranged in the one or more indentations.