US 11,940,643 B2
Lighting fixture with waveguide
Ethan Creasman, Morrisville, NC (US); Randy Bernard, Durham, NC (US); Dana Deskiewicz, Raleigh, NC (US); Nathan Snell, Raleigh, NC (US); John W. Durkee, Raleigh, NC (US); Kurt S. Wilcox, Libertyville, IL (US); and Eric J. Tarsa, Goleta, CA (US)
Assigned to Cree Lighting USA LLC, Racine, WI (US)
Filed by Cree Lighting USA LLC, Racine, WI (US)
Filed on Oct. 5, 2021, as Appl. No. 17/494,349.
Application 16/523,006 is a division of application No. 15/481,206, filed on Apr. 6, 2017, granted, now 10,459,142, issued on Oct. 29, 2019.
Application 14/991,581 is a division of application No. 14/577,730, filed on Dec. 19, 2014, abandoned.
Application 17/494,349 is a continuation in part of application No. 16/919,533, filed on Jul. 2, 2020, granted, now 11,169,313.
Application 16/919,533 is a continuation of application No. 16/523,006, filed on Jul. 26, 2019, granted, now 10,739,509, issued on Aug. 11, 2020.
Application 17/494,349 is a continuation in part of application No. 16/101,182, filed on Aug. 10, 2018, granted, now 11,137,120.
Application 16/101,182 is a continuation in part of application No. 15/890,272, filed on Feb. 6, 2018, granted, now 11,536,894.
Application 17/494,349 is a continuation in part of application No. 15/890,272, filed on Feb. 6, 2018, granted, now 11,536,894.
Application 15/481,206 is a continuation of application No. 14/991,581, filed on Jan. 8, 2016, granted, now 9,625,636, issued on Apr. 18, 2017.
Application 14/577,730 is a continuation in part of application No. 14/485,609, filed on Sep. 12, 2014, granted, now 9,952,372, issued on Apr. 24, 2018.
Application 14/485,609 is a continuation in part of application No. 14/472,035, filed on Aug. 28, 2014, granted, now 9,645,303, issued on May 9, 2017.
Application 14/472,035 is a continuation in part of application No. 14/462,391, filed on Aug. 18, 2014, granted, now 9,513,424, issued on Dec. 6, 2016.
Application 14/462,391 is a continuation in part of application No. 14/462,426, filed on Aug. 18, 2014, granted, now 10,379,278, issued on Aug. 13, 2018.
Application 14/462,426 is a continuation in part of application No. 14/292,778, filed on May 30, 2014, granted, now 9,366,799, issued on Jun. 14, 2016.
Application 14/292,778 is a continuation in part of application No. PCT/US2014/030017, filed on Mar. 15, 2014.
Application PCT/US2014/030017 is a continuation in part of application No. PCT/US2014/013931, filed on Jan. 30, 2014.
Application PCT/US2014/013931 is a continuation in part of application No. PCT/US2014/013937, filed on Jan. 30, 2014.
Application PCT/US2014/013937 is a continuation in part of application No. 14/101,099, filed on Dec. 9, 2013, granted, now 9,411,086, issued on Aug. 9, 2016.
Application 14/101,099 is a continuation in part of application No. 14/101,129, filed on Dec. 9, 2013, granted, now 10,234,616, issued on Mar. 19, 2019.
Application 14/101,129 is a continuation in part of application No. 14/101,051, filed on Dec. 9, 2013, granted, now 9,366,396, issued on Jun. 14, 2016.
Application 14/101,051 is a continuation in part of application No. 14/015,801, filed on Aug. 30, 2013, granted, now 9,291,320, issued on Mar. 22, 2016.
Application 14/015,801 is a continuation in part of application No. 13/938,877, filed on Jul. 10, 2013, granted, now 9,389,367, issued on Jul. 12, 2016.
Application 13/938,877 is a continuation in part of application No. 13/841,622, filed on Mar. 15, 2013, granted, now 10,436,970, issued on Oct. 8, 2019.
Application 13/841,622 is a continuation in part of application No. 13/842,521, filed on Mar. 15, 2013, granted, now 9,519,095, issued on Dec. 13, 2016.
Application 13/842,521 is a continuation in part of application No. 13/840,563, filed on Mar. 15, 2013, granted, now 10,436,969, issued on Oct. 8, 2019.
Application 13/840,563 is a continuation in part of application No. 13/841,074, filed on Mar. 15, 2013, granted, now 9,625,638, issued on Apr. 18, 2017.
Application 13/841,074 is a continuation in part of application No. 13/839,949, filed on Mar. 15, 2013, granted, now 9,581,751, issued on Feb. 28, 2017.
Claims priority of provisional application 62/455,422, filed on Feb. 6, 2017.
Claims priority of provisional application 62/009,039, filed on Jun. 6, 2014.
Claims priority of provisional application 62/005,955, filed on May 30, 2014.
Claims priority of provisional application 61/922,017, filed on Dec. 30, 2013.
Prior Publication US 2022/0026620 A1, Jan. 27, 2022
Int. Cl. F21V 8/00 (2006.01); F21S 8/06 (2006.01); F21V 7/00 (2006.01); F21V 17/10 (2006.01); F21V 21/005 (2006.01); F21V 23/00 (2015.01); F21V 23/06 (2006.01); F21Y 101/00 (2016.01); F21Y 103/10 (2016.01); F21Y 103/33 (2016.01); F21Y 115/10 (2016.01)
CPC G02B 6/0021 (2013.01) [G02B 6/0035 (2013.01); G02B 6/0036 (2013.01); G02B 6/0046 (2013.01); G02B 6/0048 (2013.01); G02B 6/0063 (2013.01); G02B 6/0078 (2013.01); F21S 8/061 (2013.01); F21V 7/0008 (2013.01); F21V 17/10 (2013.01); F21V 21/005 (2013.01); F21V 23/001 (2013.01); F21V 23/06 (2013.01); F21Y 2101/00 (2013.01); F21Y 2103/10 (2016.08); F21Y 2103/33 (2016.08); F21Y 2115/10 (2016.08); G02B 6/0031 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A lighting fixture, comprising:
a housing configured to be suspended from a structure;
a waveguide body coupled to the housing and comprising:
concentric extraction features across a first dimension of the waveguide body,
wherein each extraction feature comprises a combined notch and step; and
a light source in the housing and configured to emit light into the waveguide body,
wherein the extraction features of the waveguide body are configured to direct the light outward from the lighting fixture.