Housing for an LED fixture and soffit lighting system utilizing the same

• US 6,991,350 B2
• Filed: 09/02/2003
• Issued: 01/31/2006
• Est. Priority Date: 11/12/2002
• Status: Expired due to Fees

• Current Assignee: Delphitech Corporation
• Original Assignee: Delphitech Corporation
• Inventors: McInnis, Rodney
• Primary Examiner(s): Ward, John Anthony
• Assistant Examiner(s): Tsidulko, Mark
• Application Number:
  US10/652,299
• Publication Number:
  US 20040090785A1
• Time in Patent Office: 882 Days
• Field of Search: 362/362, 362/218, 362/226, 362/285, 362/287, 362/345, 362/351, 362/353, 362/371, 362/373, 362/418, 362/427, 362/430
• US Class Current: 362/362
• CPC Class Codes: F21S 8/033 the surface being a wall or like vertical structure, e.g. building facade
• 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 15/01 Housings, e.g. material or assembling of housing parts F21V15/02 takes precedence housings forming signs or letters G09F13/04
• CPC Class Codes: F21V 21/30 Pivoted housings or frames
• CPC Class Codes: F21V 23/0442 activated by means of a sensor, e.g. motion or photodetectors
• CPC Class Codes: F21V 29/70 characterised by passive heat-dissipating elements, e.g. heat-sinks
• CPC Class Codes: F21V 29/74 with fins or blades
• CPC Class Codes: F21Y 2115/10 Light-emitting diodes [LED]

Abstract

A housing for a light source, the housing having: an outer shroud, the outer shroud including an outer surface, a front edge, and a hollow inner surface; and an inner shroud, the inner shroud including a front edge and a concentric bore within which the light source is affixed, the inner shroud fitting concentrically within the inner surface of the outer shroud and the front edge of the inner shroud being offset back from the front edge of the outer shroud; wherein the radius between the outer edge of the concentric bore and the outer edge of the inner shroud shades the front edge of the outer shroud from the light source.

Claims

1. A housing for an light source, said housing comprising:

an outer shroud, said outer shroud including an outer surface, a front edge, and a hollow inner surface; and

an inner shroud, said inner shroud including a front edge and a concentric bore, the light source being affixed within the concentric bore rearwardly of the front surface of the inner shroud, said inner shroud fitting concentrically within said inner surface of said outer shroud and said front edge of said inner shroud being offset back from the front edge of said outer shroud;

wherein the inner shroud shades said front edge of said outer shroud from said light source.

2. The housing of claim 1 wherein the inner shroud is non-reflective and non-transmissive.

3. The housing of claim 1, wherein the light source is a light emitting diode.

4. The housing of claim 1 wherein said outer shroud is comprised of a UV resistant plastic.

5. The housing of claim 1 further comprising a heat sink, said heat sink being affixed over the rear side of said inner shroud.

6. The housing of claim 5, wherein the heat sink includes a channel within which a current limiting device is installed.

7. The housing of claim 6 further comprising a sealant to seal said channel in said heat sink and provide better thermal conduction after said current limiting device is placed in said channel.

8. The housing of claim 1 further comprising a mounting means.

9. The housing of claim 8, wherein said mounting means comprises:

an angled bracket;

an affixing means to affix a first end of said angled bracket to said building;

a pivotal attachment means for pivotally attaching said housing to a second end of said angled bracket; and

a holding means affixed to said pivotal means, said holding means allowing manual pivoting of said housing but holding said housing in a fixed position absent manual pivoting.

10. The housing of claim 9, wherein said holding means comprises a resilient “

o”

ring.

11. The housing of claim 1 further comprising a lens, said lens being affixed to said housing in front of said light emitting diode.

12. A light fixture comprising:

a housing, the housing comprising an outer shroud having a front surface and a concentric bore, and an inner shroud having a front surface and mounted within the concentric bore with the front surface of the inner shroud being rearward of the front surface of the outer shroud;

a light emitting diode affixed within said housing rearwardly of the front surface of the inner shroud;

a power input for providing power to said light emitting diode;

a current limiting device located between said power input and said light emitting diode; and

a heat dissipation device affixed to said housing, said current limiting device being located within said heat dissipation device,

wherein the inner shroud shield the front surface of the outer shroud from light from said light-emitting diode.

13. The light fixture of claim 12, wherein said power input is a direct current input.

14. The light fixture of claim 13, wherein said current limiting device is a resistor.

15. The light fixture of claim 14, wherein said resistor is placed within a hole formed for said resistor in said heat dissipation device.

16. The light fixture of claim 15 further comprising a sealant to seal said hole in said heat dissipation device and provide better thermal conduction after said resistor is placed in said hole.

17. The light fixture of claim 16 further comprising a mounting means to mount said light fixture to a structure.

18. The light fixture of claim 17, wherein said mounting means is an angled bracket affixed to said heat dissipation device.

19. The fixture of claim 12 further comprising a lens, said lens being affixed to said housing in front of said light emitting diode.