LED LUMINAIRE UTILIZING AN EXTENDED AND NON-METALLIC ENCLOSURE

• US 20120120653A1
• Filed: 07/06/2011
• Published: 05/17/2012
• Est. Priority Date: 11/16/2010
• Status: Active Grant

• Current Assignee: Dialight Corporation (Dialight PLC)
• Original Assignee: Dialight Corporation (Dialight PLC)
• Inventors: Peck, John Patrick, Boege, Samuel David, Spiridonov, Aleksandr Olegovich
• Granted Patent: US 9,033,542 B2
• Time in Patent Office: Days
• US Class Current: 362/235
• CPC Class Codes: F21S 4/28 rigid, e.g. LED bars
• CPC Class Codes: F21S 8/06 by suspension
• CPC Class Codes: F21V 13/04 the elements being reflectors and refractors for vehicle rear lights F21S43/40
• CPC Class Codes: F21V 15/013 the housing being an extrusion
• CPC Class Codes: F21V 17/104 using feather joints, e.g. tongues and grooves, with or without friction
• CPC Class Codes: F21V 19/004 by deformation of parts or snap action mountings, e.g. using clips
• CPC Class Codes: F21V 27/02 Cable inlets
• CPC Class Codes: F21V 29/503 of light sources cooling arrangements structurally associated with gas-discharge or vapour-discharge lamps H01J61/52; cooling arrangements structurally associated with electric incandescent lamps H01K1/58; cooling arrangements structurally associated with light-emitting diodes H01L33/64
• CPC Class Codes: F21V 29/70 characterised by passive heat-dissipating elements, e.g. heat-sinks
• CPC Class Codes: F21V 3/062 the material being plastics
• CPC Class Codes: F21V 31/005 Sealing arrangements therefor
• CPC Class Codes: F21V 7/005 with an elongated shape to cooperate with linear light sources
• CPC Class Codes: F21Y 2103/10 comprising a linear array of point-like light-generating elements
• CPC Class Codes: F21Y 2115/10 Light-emitting diodes [LED]
• CPC Class Codes: Y10T 29/49002 Electrical device making

Abstract

The present disclosure relates generally to a light emitting diode (LED) luminaire. In one embodiment, the LED luminaire includes a linearly extended enclosure having an interior volume, one or more sides and a light exiting portion along a length of the linearly extended enclosure, wherein the one or more sides each comprise an inside surface and an outside surface, wherein at least a portion of the linearly extended enclosure comprises an extruded optically clear plastic, one or more first LEDs mounted on the inside surface of the one or more sides of the linearly extended enclosure and a reflector coupled to the interior volume of the linearly extended enclosure, wherein the reflector redirects light from the one or more first LEDs.

Claims

1. A light emitting diode (LED) luminaire, comprising:

a linearly extended enclosure having an interior volume, one or more sides and a light exiting portion along a length of the linearly extended enclosure, wherein the one or more sides each comprises an inside surface and an outside surface, wherein at least a portion of the linearly extended enclosure comprises an extruded optically clear plastic;

one or more first LEDs mounted on the inside surface of one of the one or more sides of the linearly extended enclosure; and

a reflector coupled to the interior volume of the linearly extended enclosure, wherein the reflector redirects light from the one or more first LEDs.

2. The LED luminaire of claim 1, wherein one or more second LEDs are positioned on an opposing side of the linearly extended enclosure relative to the one or more first LEDs.

3. The LED luminaire of claim 2, wherein a central light emitting axis of the one or more first LEDs is oriented at about 180°

with respect to a central light emitting axis of the one or more second LEDs, wherein the 180°

has a tolerance of +/−

25°

.

4. The LED luminaire of claim 1, wherein the one or more first LEDs are positioned such that a central light emitting axis of the one or more first LEDs is at about 90°

with respect to a vector that is normal to the ground and coming out of the ground.

5. The LED luminaire of claim 1, wherein the linearly extended enclosure comprises one or more slots, wherein the reflector comprises one or more legs having a tab, wherein the reflector is coupled to the linearly extended enclosure by placing the tab into a respective one of the one or more slots.

6. The LED luminaire of claim 5, wherein the one or more legs of the reflector are spring loaded.

7. The LED luminaire of claim 5, wherein light emitted from the one or more first LEDs at an angle of −

90°

to +20°

relative to a central light emitting axis of the one or more first LEDs is reflected off of the reflector.

8. The LED luminaire of claim 1, wherein the enclosure comprises one or more flange sections.

9. The LED luminaire of claim 8, wherein each one of the one or more flange sections includes one or more holes for mounting.

10. The LED luminaire of claim 1, wherein a seal is formed between a continuous surface along a perimeter of the linearly extended enclosure and a continuous surface along a perimeter of an end cap on each end of the linearly extended enclosure.

11. The LED luminaire of claim 1, further comprising:

an interface material disposed between the one or more first LEDs and the inside surface of the one or more sides of the linearly extended enclosure.

12. The LED luminaire of claim 1, further comprising:

a power supply coupled to an interior volume of the reflector to provide power to the one or more first LEDs.

13. The LED luminaire of claim 1, further comprising:

a power supply coupled to an exterior side of the linearly extended enclosure.

14. The LED luminaire of claim 1, wherein the LED luminaire provides at least 1000 lumens of visible light.

15. The LED luminaire of claim 1, wherein the length of the linearly extended enclosure is at least 12 inches.

16. The LED luminaire of claim 1, wherein the linearly extended enclosure is extruded with optical features.

17. A light emitting diode (LED) luminaire for producing at least 1000 lumens of visible light, comprising:

a linearly extended enclosure having an interior volume, one or more sides and a light exiting portion along a length of the linearly extended enclosure, wherein the one or more sides each comprises an inside surface and an outside surface, wherein at least a portion of the linearly extended enclosure comprises an extruded optically clear plastic;

one or more first LEDs mounted on the inside surface of one of the one or more sides of the linearly extended enclosure; and

a reflector coupled to the interior volume of the linearly extended enclosure, wherein the reflector redirects light from the one or more first LEDs.

18. The LED luminaire of claim 17, wherein one or more second LEDs are positioned on an opposing side of the linearly extended enclosure relative to the one or more first LEDs.

19. A method for producing a light emitting diode (LED) luminaire, comprising:

extruding a non-metallic material to form a linearly extended enclosure, wherein at least a portion of the non-metallic material is optically clear, wherein a cross-section of the linearly extended enclosure does not change during the extruding, wherein the enclosure has an interior volume, one or more sides along a length of the linearly extended enclosure, wherein one or more sides each comprises an inside surface and an outside surface;

cutting the linearly extended enclosure after the extruding to a length of at least twelve inches to form a first open end and a second open end;

coupling one or more LEDs coupled to the inside surface of one of the one or more sides of the linearly extended enclosure;

coupling a reflector to the interior volume of the linearly extended enclosure; and

sealing the first open end with a first end cap and the second open end with a second end cap.

20. The method of claim 19, wherein the extruding further comprises:

forming one or more flanges; and

forming one or more slots on the inside surface of the one or more flat sides to hold the reflector.