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US-12625315-B2 - Lighting fixture with waveguide

US12625315B2US 12625315 B2US12625315 B2US 12625315B2US-12625315-B2

Abstract

Generally, embodiment(s) disclosed herein may include modular luminaires and customizable luminaire combinations to produce desired overall illumination patterns, modular luminaires interchangeable between one or more lighting systems/luminaires having differing configurations, and/or luminaires with portions thereof formed primarily by optical waveguides, e.g., a wall sconce where primarily only waveguides extend from the wall. Further, contemplated throughout this disclosure is modification of panel-style and/or blade-style waveguide(s) for use with luminaire configurations having different sizes, shapes, and structural elements including as modular luminaires for use in creating further customizable lighting systems/luminaires.

Inventors

  • Ethan Creasman
  • Randy Bernard
  • Dana Deskiewicz
  • Nathan Snell
  • John W. Durkee
  • Kurt S. Wilcox
  • Eric J. Tarsa

Assignees

  • CREE LIGHTING USA LLC

Dates

Publication Date
20260512
Application Date
20240228

Claims (20)

  1. 1 . A luminaire, comprising: a housing configured for mounting in a structural surface; a waveguide coupled to the housing and positioned transverse to the structural surface, the waveguide comprising a light input end, a bottom end, a first side and an opposing second side extending from the light input end to the bottom end, the first side forming a primary light output side of the waveguide and the second side oriented to face toward a first top panel in the direction of a wall such that first side outputs more light than the second side; and one or more light-emitting elements disposed at the light input end of the waveguide; wherein; the primary light output side of the waveguide comprises a plurality of light extraction features forming an array extending from the light input end to the bottom end; the primary light output side is angled relative to a height of the housing in a vertical direction; and the bottom end of the waveguide defines at least a portion of a bottom edge of the luminaire.
  2. 2 . The luminaire of claim 1 , wherein the housing comprises a first top panel and a second top panel opposite the first top panel, wherein the primary light output side faces the second top panel.
  3. 3 . The luminaire of claim 1 , wherein the waveguide is oriented in a vertical position.
  4. 4 . The luminaire of claim 1 , wherein the light input end is positioned at a top of the waveguide.
  5. 5 . The luminaire of claim 1 , wherein the housing is configured for mounting in a ceiling.
  6. 6 . The luminaire of claim 1 , wherein an additional plurality of light extraction features are on the second side of the waveguide.
  7. 7 . The luminaire of claim 1 , wherein the plurality of light extraction features comprises a pattern of regularly spaced light extraction features.
  8. 8 . The luminaire of claim 1 , wherein the plurality of light extraction features comprises a pattern of irregularly spaced light extraction features.
  9. 9 . The luminaire of claim 1 , wherein the plurality of light extraction features comprises elongated grooves on the primary light output side of the waveguide.
  10. 10 . The luminaire of claim 1 , further comprising a reflective material to redirect light that exits the waveguide.
  11. 11 . The luminaire of claim 1 , wherein the primary output side is angled in a range from 25 to 46 degrees from the vertical direction.
  12. 12 . A troffer-style luminaire, comprising: a troffer housing defining an interior recess, the troffer housing comprising a first side panel, and a second side panel that is opposite the first side panel, the troffer housing being configured for mounting in a ceiling; a waveguide comprising a coupling end, a bottom end, a first side and an opposing second side extending from the coupling end to the bottom end, the first side forming a primary light output side of the waveguide and the second side oriented to face toward the first top panel in the direction of a wall such that first side outputs more light than the second side, the waveguide being arranged in a position such that the bottom end of the waveguide defines a depth of the interior recess; and one or more light-emitting elements arranged at the coupling end of the waveguide; wherein the primary light output side of the waveguide comprises a plurality of light extraction features forming an array extending from the coupling end to the bottom end, and the primary light output side is angled relative to the depth of the interior recess in a vertical direction, and the bottom end of the waveguide defines at least a portion of a bottom edge of the troffer-style luminaire.
  13. 13 . The troffer-style luminaire of claim 12 , wherein the coupling end of the waveguide is positioned at the top of the waveguide.
  14. 14 . The troffer-style luminaire of claim 12 , wherein the primary light output side faces the interior recess.
  15. 15 . The troffer-style luminaire of claim 12 , wherein the plurality of light extraction features comprises elongated grooves on the primary light output side.
  16. 16 . The troffer-style luminaire of claim 12 , further comprising a reflective material to redirect light that exits the waveguide.
  17. 17 . A luminaire, comprising: a housing comprising at least one side panel, the housing being configured for mounting in a structural surface; a plurality of waveguides arranged within the housing and positioned transverse to the structural surface, each of the plurality of waveguides comprising a light input end, a bottom end, a first side and an opposing second side extending from the light input end to the bottom end, the first side forming a primary light output side of the waveguide and the second oriented to face toward the first top panel in the direction of a wall such that the first side outputs more light than the second side; and one or more light-emitting elements disposed at the light input end of each of the plurality of waveguides; wherein the primary light output side of each waveguide comprises a plurality of light extraction features forming an array extending from the light input end to the bottom end, and the primary light output side is angled relative to a height of the housing in a vertical direction, and the bottom end of each waveguide defines at least a portion of a bottom edge of the luminaire.
  18. 18 . The luminaire of claim 17 , wherein the plurality of waveguides comprises at least two waveguides arranged side-by-side.
  19. 19 . The luminaire of claim 17 , further comprising an elongate housing, the elongate housing connecting to the light input end of each waveguide of the plurality of waveguides.
  20. 20 . The luminaire of claim 19 , wherein the one or more light-emitting elements are disposed within the elongate housing.

Description

RELATED APPLICATIONS The present application is a continuation of U.S. patent application Ser. No. 17/494,349, filed Oct. 5, 2021, which is a continuation-in-part of U.S. patent application Ser. No. 15/890,272, filed Feb. 6, 2018 (now U.S. Pat. No. 11,536,894), which claims the benefit of U.S. Provisional Patent Application Ser. No. 62/455,422, filed Feb. 6, 2017, the contents of which are hereby incorporated herein by reference in their entirety. U.S. patent application Ser. No. 17/494,349 is a continuation-in-part of U.S. patent application Ser. No. 16/101,182, filed Aug. 10, 2018 (now U.S. Pat. No. 11,137,120), which is a continuation-in-part of U.S. patent application Ser. No. 15/890,272, filed Feb. 6, 2018 (now U.S. Pat. No. 11,536,894), which claims the benefit of U.S. Provisional Patent Application Ser. No. 62/455,422, filed Feb. 6, 2017, the contents of which are hereby incorporated herein by reference in their entirety. U.S. patent application Ser. No. 17/494,349 is a continuation-in-part of U.S. patent application Ser. No. 16/919,533, filed Jul. 2, 2020 (now U.S. Pat. No. 11,169,313), which is a continuation of U.S. patent application Ser. No. 16/523,006, filed Jul. 26, 2019 (now U.S. Pat. No. 10,739,509), which is a divisional of U.S. patent application Ser. No. 15/481,206, filed Apr. 6, 2017 (now U.S. Pat. No. 10,459,142), which is a continuation of U.S. patent application Ser. No. 14/991,581, filed Jan. 8, 2016 (now U.S. Pat. No. 9,625,636), which is a divisional of U.S. patent application Ser. No. 14/577,730, filed Dec. 19, 2014. Said U.S. patent application Ser. No. 14/991,581 is further a continuation-in-part of U.S. patent application Ser. No. 14/015,801, filed Aug. 30, 2013 (now U.S. Pat. No. 9,291,320), and is further a continuation-in-part of U.S. patent application Ser. No. 13/842,521, filed Mar. 15, 2013 (now U.S. Pat. No. 9,519,095), and is further a continuation-in-part of U.S. patent application Ser. No. 13/839,949, filed Mar. 15, 2013 (now U.S. Pat. No. 9,581,751), and is further a continuation-in-part of U.S. patent application Ser. No. 13/841,074, filed Mar. 15, 2013 (now U.S. Pat. No. 9,625,638), and is further a continuation-in-part of U.S. patent application Ser. No. 13/841,622, filed Mar. 15, 2013 (now U.S. Pat. No. 10,436,970), and is further a continuation-in-part of U.S. patent application Ser. No. 13/840,563, filed Mar. 15, 2013 (now U.S. Pat. No. 10,436,969), and is further a continuation-in-part of U.S. patent application Ser. No. 13/938,877, filed Jul. 10, 2013 (now U.S. Pat. No. 9,389,367), and is further a continuation-in-part of U.S. patent application Ser. No. 14/101,099, filed Dec. 9, 2013 (now U.S. Pat. No. 9,411,086), and is further a continuation-in-part of U.S. patent application Ser. No. 14/101,129, filed Dec. 9, 2013 (now U.S. Pat. No. 10,234,616), and is further a continuation-in-part of U.S. patent application Ser. No. 14/101,051, filed Dec. 9, 2013 (now U.S. Pat. No. 9,366,396), and is further a continuation-in-part of International Patent Application Ser. No. PCT/US2014/013931, filed Jan. 30, 2014, and is further a continuation-in-part of International Patent Application Ser. No. PCT/US2014/013937, filed Jan. 30, 2014, and is further a continuation-in-part of International Patent Application Ser. No. PCT/US2014/030017, filed Mar. 15, 2014, and is further a continuation-in-part of U.S. patent application Ser. No. 14/292,778, filed May 30, 2014 (now U.S. Pat. No. 9,366,799), and is further a continuation-in-part of U.S. patent application Ser. No. 14/485,609, filed Sep. 12, 2014, (now U.S. Pat. No. 9,952,372), and is further a continuation-in-part of U.S. patent application Ser. No. 14/462,426, filed Aug. 18, 2014 (now U.S. Pat. No. 10,379,278), which claims the benefit of U.S. Provisional Patent Application Ser. No. 61/922,017, filed Dec. 30, 2013, and further claims the benefit of U.S. Provisional Patent Application Ser. No. 62/005,955, filed May 30, 2014, and further claims the benefit of U.S. Provisional Patent Application Ser. No. 62/009,039, filed Jun. 6, 2014. Said U.S. patent application Ser. No. 14/991,581, filed Jan. 8, 2016 (now U.S. Pat. No. 9,625,636), further comprises a continuation-in-part of U.S. patent application Ser. No. 14/462,391, filed Aug. 18, 2014 (now U.S. Pat. No. 9,513,424), and further comprises a continuation-in-part of U.S. patent application Ser. No. 14/472,035, filed Aug. 28, 2014 (now U.S. Pat. No. 9,645,303). The contents of each of the above applications is hereby incorporated herein by reference in its entirety. FIELD OF THE DISCLOSURE The present subject matter relates to general illumination lighting, and more particularly, to modular and/or interchangeable outdoor, indoor, and/or enclosed structure luminaires usable, for example, in home, office, and/or warehouse settings. BACKGROUND Large areas of open indoor space, such as an office or warehouse spaces, require sufficient lighting to allow for safe and comfortable