Light fixtures and lighting devices

• US 10,047,946 B2
• Filed: 05/07/2008
• Issued: 08/14/2018
• Est. Priority Date: 05/07/2007
• Status: Active Grant

• Current Assignee: IDEAL Industries Lighting, LLC (Ideal Industries Incorporated)
• Original Assignee: CREE Incorporated (Wolfspeed, Inc.)
• Inventors: Pickard, Paul Kenneth, Trott, Gary David
• Primary Examiner(s): GARLEN, ALEXANDER K
• Application Number:
  US12/116,348
• Publication Number:
  US 20080278957A1
• Time in Patent Office: 3,751 Days
• Field of Search: 362362, 362364, 36224902, 362294, 362373, 362147, 362404
• CPC Class Codes: F21S 8/02 of recess-mounted type, e.g. downlighters specially adapted for vehicle exteriors F21S41/00-F21S45/00
• CPC Class Codes: F21V 11/02 using parallel laminae or strips, e.g. of Venetian-blind type F21V11/06 takes precedence
• 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 29/70 characterised by passive heat-dissipating elements, e.g. heat-sinks
• CPC Class Codes: F21V 29/763 the planes containing the fins or blades having the direction of the light emitting axis
• CPC Class Codes: F21Y 2115/10 Light-emitting diodes [LED]

Abstract

There is provided a light fixture, comprising a heat sink element and an upper housing mounted to the heat sink element, the heat sink element extending farther in a first direction in a first plane than a largest dimension of the upper housing in any plane parallel to the first plane. In addition, a light fixture, comprising a heat sink element, an upper housing mounted to the heat sink element and an additional component (e.g., a power supply module or a junction box) in contact with the heat sink element. Also, a light fixture, comprising a heat sink element, an upper housing thermally coupled to the heat sink element and at least one solid state light emitter thermally coupled to the heat sink element.

Claims

1. A light fixture, comprising:

a heat sink element;

an upper housing mounted to the heat sink element; and

a baffle assembly,

a largest dimension of the heat sink element extends in a first direction in a first plane, said largest dimension of the heat sink element is larger than a largest dimension of the upper housing in any plane which is parallel to the first plane,

a dimension of the baffle assembly in a plane which is parallel to the first plane is larger than said dimension of the heat sink element in the first direction.

2. A light fixture as recited in claim 1, wherein the light fixture further comprises at least one lighting device.

3. A light fixture as recited in claim 2, wherein the lighting device comprises at least one solid state light emitter.

4. A light fixture as recited in claim 3, wherein the at least one solid state light emitter is an LED.

5. A light fixture as recited in claim 3, wherein the lighting device comprises a plurality of solid state light emitters.

6. A light fixture as recited in claim 5, wherein each of the plurality of solid state light emitters is an LED.

7. A light fixture as recited in claim 3, wherein the at least one solid state light emitter is on the heat sink element.

8. A light fixture as recited in claim 3, wherein the at least one solid state light emitter is thermally coupled to the heat sink element.

9. A light fixture as recited in claim 1, wherein the largest dimension of the upper housing is in a second plane which is parallel to the first plane.

10. A light fixture as recited in claim 1, wherein the light fixture further comprises a light emitter board on the heat sink, and at least one solid state light emitter on the light emitter board, the light emitter board thermally coupled to the heat sink, the at least one solid state light emitter thermally coupled to the light emitter board.

11. A light fixture as recited in claim 10, wherein the light emitter board is a metal core printed circuit board on which the LEDs are mounted.

12. A light fixture as recited in claim 1, wherein at least a portion of the upper housing is substantially frustopyramidal.

13. A light fixture as recited in claim 1, wherein the light fixture further comprises at least one additional component on the heat sink element.

14. A light fixture as recited in claim 13, wherein the heat sink element comprises a first side and a second side, the at least one additional component and the upper housing both on the first side of the heat sink element.

15. A light fixture as recited in claim 13, wherein the at least one additional component comprises at least one element selected from among a power supply module and a junction box.

16. A light fixture as recited in claim 15, wherein the power supply module comprises a compartment in which a power supply is provided.

17. A light fixture as recited in claim 1, wherein the upper housing is thermally coupled to the heat sink element.

18. A light fixture as recited in claim 1, wherein the first plane is substantially perpendicular to an axis of symmetry of the upper housing.

19. A light fixture, comprising:

a heat sink element;

an upper housing; and

at least a first additional component,

the heat sink element comprising a first side and a second side, the second side non-opposite with respect to the first side, the upper housing on the first side of the heat sink element, the first additional component on the second side of the heat sink element.

20. A light fixture as recited in claim 19, wherein the at least one additional component comprises at least one element selected from among a power supply module and a junction box.

21. A light fixture as recited in claim 20, wherein the power supply module comprises a compartment in which a power supply is provided.

22. A light fixture as recited in claim 19, wherein the light fixture further comprises at least one lighting device.

23. A light fixture as recited in claim 22, wherein the lighting device comprises at least one solid state light emitter.

24. A light fixture as recited in claim 23, wherein the at least one solid state light emitter is an LED.

25. A light fixture as recited in claim 23, wherein the lighting device comprises a plurality of solid state light emitters.

26. A light fixture as recited in claim 25, wherein each of the plurality of solid state light emitters is an LED.

27. A light fixture as recited in claim 23, wherein the at least one solid state light emitter is on the heat sink element.

28. A light fixture as recited in claim 23, wherein the at least one solid state light emitter is thermally coupled to the heat sink element.

29. A light fixture as recited in claim 19, wherein the light fixture further comprises a light emitter board on the heat sink, and at least one solid state light emitter on the light emitter board, the light emitter board thermally coupled to the heat sink, the at least one solid state light emitter thermally coupled to the light emitter board.

30. A light fixture as recited in claim 29, wherein the light emitter board is a metal core printed circuit board on which the LEDs are mounted.

31. A light fixture as recited in claim 19, wherein at least a portion of the upper housing is substantially frustopyramidal.

32. A light fixture as recited in claim 19, wherein the largest dimension of the upper housing is in a second plane which is parallel to a first plane, a dimension of the heat sink element in the first plane is larger than a largest dimension of the upper housing in the first plane.

33. A light fixture as recited in claim 19, wherein the upper housing is thermally coupled to the heat sink element.

34. A light fixture as recited in claim 19, wherein:

the heat sink element is entirely to a first side of a plane and the upper housing entirely to a second side of the plane, and

the first additional component is outside the upper housing.

35. A light fixture, comprising:

a heat sink element;

an upper housing thermally coupled to the heat sink element;

a baffle assembly; and

at least one solid state light emitter thermally coupled to the heat sink element, a dimension of the light fixture in a direction parallel to a first plane larger than a dimension of the light fixture in a direction perpendicular to the first plane, the first plane extending between at least a portion of the upper housing and at least a portion of the heat sink element,

the heat sink element entirely within a space defined by lines that (1) extend through a perimeter of the baffle assembly and (2) are perpendicular to the first plane.

36. A light fixture as recited in claim 35, wherein the at least one solid state light emitter is on the heat sink.

37. A light fixture as recited in claim 35, wherein the light fixture further comprises a light emitter board on the heat sink, the at least one solid state light emitter on the light emitter board, the light emitter board thermally coupled to the heat sink, the at least one solid state light emitter thermally coupled to the light emitter board.

38. A light fixture as recited in claim 37, wherein the light emitter board is a metal core printed circuit board on which the LEDs are mounted.

39. A light fixture as recited in claim 35, wherein the at least one solid state light emitter is an LED.

40. A light fixture as recited in claim 35, wherein the light fixture comprises a plurality of solid state light emitters.

41. A light fixture as recited in claim 40, wherein each of the plurality of solid state light emitters is an LED.

42. A light fixture as recited in claim 35, wherein the light fixture further comprises at least one additional component on the heat sink element.

43. A light fixture as recited in claim 42, wherein the at least one additional component comprises at least one element selected from among a power supply module and a junction box.

44. A light fixture as recited in claim 43, wherein the power supply module comprises a compartment in which a power supply is provided.

45. A light fixture as recited in claim 42, wherein the heat sink element comprises a first side and a second side, the at least one additional component and the upper housing both on the first side of the heat sink element.