Modular LED lighting fixture

• US 10,274,173 B2
• Filed: 03/29/2018
• Issued: 04/30/2019
• Est. Priority Date: 03/30/2017
• Status: Active Grant

• Current Assignee: LSI Industries Incorporated
• Original Assignee: LSI Industries Incorporated
• Inventors: Schubert, Travis, Boyer, John D., Wright, Travis
• Primary Examiner(s): Breval, Elmito
• Assistant Examiner(s): Zimmerman, Glenn D
• Application Number:
  US15/940,179
• Publication Number:
  US 20180283659A1
• Time in Patent Office: 397 Days
• CPC Class Codes: F21S 8/04 intended only for mounting on a ceiling or the like overhead structures F21S8/02 takes precedence; details of ceiling bases F21V21/03
• CPC Class Codes: F21V 17/164 the parts being subjected to bending, e.g. snap joints
• CPC Class Codes: F21V 7/0016 on lighting devices that also provide for direct lighting, e.g. by means of independent light sources, by splitting of the light beam, by switching between both lighting modes
• CPC Class Codes: F21V 7/005 with an elongated shape to cooperate with linear light sources
• CPC Class Codes: F21V 7/05 plane
• CPC Class Codes: F21Y 2103/10 comprising a linear array of point-like light-generating elements
• CPC Class Codes: F21Y 2105/00 Planar light sources
• CPC Class Codes: F21Y 2107/00 Light sources with three-dimensionally disposed light-generating elements
• CPC Class Codes: F21Y 2115/10 Light-emitting diodes [LED]
• CPC Class Codes: G02B 6/0075 Arrangements of multiple light guides G02B6/0028 takes precedence
• CPC Class Codes: G02B 6/0081 Mechanical or electrical aspects of the light guide and light source in the lighting device peculiar to the adaptation to planar light guides, e.g. concerning packaging
• CPC Class Codes: G02B 6/0091 of the light source relative to the light guide G02B6/0021 takes precedence

Abstract

A modular lighting fixture includes an elongate center support member defining a channel. At least one reflector panel is coupled with the center support member and extends laterally outward therefrom. The lighting fixture further includes at least one light guide having a first edge and an oppositely disposed second edge. The first edge of the light guide is mechanically coupled with the center support member. The light guide may have a curved cross-sectional shape in a plane perpendicular to a longitudinal direction of the center support member. At least one light emitting diode (LED) is disposed adjacent the first edge of the light guide, whereby light produced by the LED is directed through the light guide toward the second edge.

Claims

1. A modular light fixture, comprising:

an elongate center support member defining a channel;

at least one reflector panel coupled with the center support member and extending laterally outward therefrom;

at least one light guide having a first edge and an oppositely disposed second edge, the first edge being mechanically coupled with the center support member;

the light guide having a curved cross-sectional shape in a plane perpendicular to a longitudinal direction of the center support member; and

at least one light emitting diode (LED) disposed adjacent the first edge,

wherein the at least one reflector panel and the at least one light guide comprise discrete components each individually coupled to the center support member.

2. The modular light fixture of claim 1, wherein at least one of the at least one reflector panel or the at least one light guide is mechanically coupled with the center support member by at least one of:

a sliding engagement;

a snap-fit engagement;

or

a press-fit engagement.

3. The modular light fixture of claim 1, wherein the at least one light guide extends outwardly from the center support member adjacent the at least one reflector panel.

4. The modular light fixture of claim 1, comprising first and second reflector panels disposed on opposite lateral sides of the center support member, and first and second light guides.

5. The modular light fixture of claim 1, further comprising:

at least one circuit board disposed within the channel;

the at least one LED supported on the at least one circuit board.

6. The modular light fixture of claim 1, wherein the light guide is extruded to define the curved shape.

7. The modular light fixture of claim 1, wherein:

the at least one light guide is configured to direct light from a lens surface in a direction opposite the reflector panel.

8. The modular light fixture of claim 1, wherein:

the at least one light guide is configured to direct light from lens surfaces in directions toward and away from the reflector panel.

9. The modular light fixture of claim 1, further comprising:

at least one end cap disposed on a longitudinal free end of the center support member and coupled with the at least one reflector panel.

10. The modular light fixture of claim 4, further comprising a spacer member disposed between the first and second light guides.

11. The modular light fixture of claim 7, further comprising:

a reflective material disposed on at least a portion of the reflector panel that faces the light guide.

12. A modular light fixture, comprising:

an elongate center support member defining a channel;

at least one reflector panel coupled with the center support member and extending laterally outward therefrom;

at least one light guide having a first edge and an oppositely disposed second edge, the first edge including first coupling structure;

second coupling structure on the center support member, the second coupling structure having a shape complimentary to the first coupling structure and engaging the first coupling structure such that the at least one light guide is mechanically coupled with the center support member by at least one of;

a sliding engagement,

a snap-fit engagement, or

a press-fit engagement; and

at least one light emitting diode (LED) disposed adjacent the first edge,

wherein the at least one reflector panel and the at least one light guide comprise discrete components each individually coupled to the center support member.