US 11,655,950 B2
Lighting devices having optical waveguides for controlled light distribution
Kurt Wilcox, Libertyville, IL (US); Jin Hong Lim, Morrisville, NC (US); Curt Progl, Raleigh, NC (US); Steve Wilcenski, Cary, NC (US); and Zongjie Yuan, Libertyville, IL (US)
Assigned to IDEAL INDUSTRIES LIGHTING LLC, Racine, WI (US)
Filed by IDEAL INDUSTRIES LIGHTING LLC, Racine, WI (US)
Filed on Feb. 15, 2022, as Appl. No. 17/672,510.
Application 16/392,978 is a division of application No. 15/192,979, filed on Jun. 24, 2016, granted, now 10,317,608, issued on Jun. 11, 2019.
Application 17/672,510 is a continuation in part of application No. 16/392,978, filed on Apr. 24, 2019.
Application 16/392,978 is a continuation in part of application No. 16/369,138, filed on Mar. 29, 2019, granted, now 11,249,239.
Application 15/192,979 is a continuation in part of application No. 15/060,306, filed on Mar. 3, 2016, granted, now 9,841,154.
Application 15/060,306 is a continuation in part of application No. 15/060,354, filed on Mar. 3, 2016, granted, now 9,835,317.
Application 15/060,354 is a continuation in part of application No. 14/657,988, filed on Mar. 13, 2015, granted, now 9,709,725.
Application 14/657,988 is a continuation in part of application No. 14/485,609, filed on Sep. 12, 2014, granted, now 9,952,372.
Application 14/485,609 is a continuation in part of application No. 29/496,754, filed on Jul. 16, 2014, granted, now D764091.
Application 29/496,754 is a continuation in part of application No. PCT/US2014/030017, filed on Mar. 15, 2014.
Claims priority of provisional application 62/301,559, filed on Feb. 29, 2016.
Claims priority of provisional application 62/301,572, filed on Feb. 29, 2016.
Claims priority of provisional application 62/025,905, filed on Jul. 17, 2014.
Claims priority of provisional application 62/025,436, filed on Jul. 16, 2014.
Claims priority of provisional application 62/005,965, filed on May 30, 2014.
Prior Publication US 2022/0170603 A1, Jun. 2, 2022
Int. Cl. F21S 8/08 (2006.01); F21V 21/116 (2006.01); F21V 8/00 (2006.01); G02B 6/24 (2006.01); G02B 6/26 (2006.01); G02B 6/30 (2006.01); G02B 6/32 (2006.01); G02B 6/34 (2006.01); F21V 5/00 (2018.01); F21V 29/51 (2015.01); F21Y 113/13 (2016.01); F21Y 115/10 (2016.01); F21W 131/103 (2006.01)
CPC F21S 8/088 (2013.01) [F21S 8/086 (2013.01); F21V 5/00 (2013.01); F21V 21/116 (2013.01); G02B 6/0006 (2013.01); G02B 6/0016 (2013.01); G02B 6/0021 (2013.01); G02B 6/0031 (2013.01); G02B 6/0035 (2013.01); G02B 6/0036 (2013.01); G02B 6/0045 (2013.01); G02B 6/0055 (2013.01); G02B 6/24 (2013.01); G02B 6/262 (2013.01); G02B 6/305 (2013.01); G02B 6/32 (2013.01); G02B 6/34 (2013.01); F21V 29/51 (2015.01); F21W 2131/103 (2013.01); F21Y 2113/13 (2016.08); F21Y 2115/10 (2016.08)] 20 Claims
OG exemplary drawing
 
1. A lighting device, comprising:
a housing;
a light emitter disposed in the housing; and
a waveguide at least partially disposed in an opening of the housing and comprising:
a light input surface defining coupling features, wherein the light emitter is disposed adjacent the light input surface and emits light into the coupling features;
a light transmission portion disposed between the light input surface and a light extraction portion, wherein light from the light emitter received at the light input surface propagates through the light transmission portion toward the light extraction portion; and
the light extraction portion comprising at least one light redirection feature and at least one light extraction feature that cooperate to generate a controlled light pattern exiting the lighting device, the light extraction portion positioned to extract a redirected portion of light received from at least one light deflection surface of the light transmission portion, and positioned to receive a non-redirected portion of light received from the light transmission portion.