Light fixtures and lighting devices

• US 8,136,965 B2
• Filed: 05/07/2008
• Issued: 03/20/2012
• 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): Ward, John A
• Application Number:
  US12/116,346
• Publication Number:
  US 20080278950A1
• Time in Patent Office: 1,413 Days
• Field of Search: 362/373, 362/374, 362/375, 362/364, 362/367, 362/224, 362/294, 362/296.07, 362/382
• US Class Current: 362/294
• 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

A lighting device comprises a heat sink, a housing mounted to and/or thermally coupled to the heat sink, a basket assembly attached to the housing, a solid state light emitter thermally coupled to the heat sink, and a baffle assembly attached to the housing. Also, a lighting device comprising a basket assembly and a baffle assembly. In some embodiments, the basket assembly comprises a first member defining a first opening, a second member, a space between the first and second members, and lenses in the opening and in the space. In some embodiments, the heat sink extends farther in a first direction in a first plane than a largest dimension of the housing in any plane which is parallel to the first plane. In some embodiments, at least one additional component (e.g., a power supply module or a junction box) is in contact with the heat sink element.

Claims

1. A lighting device, comprising:

a heat sink element;

an upper housing mounted to the heat sink element;

a basket assembly attached to the upper housing;

at least one solid state light emitter thermally coupled to the heat sink element; and

a baffle assembly attached to the upper housing, the baffle assembly comprising a plurality of side walls and an end region, the end region defining a light exit opening, the light exit opening defining a first substantially planar area, at least one of the side walls of the baffle assembly extending from the end region at an angle of less than 90 degrees relative to the first substantially planar area.

2. A lighting device as recited in claim 1, wherein the baffle assembly comprises four side walls, and the four side walls define a substantially frustopyramidal shape.

3. A lighting device as recited in claim 1, wherein the angle is between 18 degrees and 27 degrees.

4. A lighting device as recited, in claim 3, wherein the baffle assembly comprises four side walls, and the four side walls define a substantially frustopyramidal shape.

5. A lighting device as recited in claim 1, wherein the light exit opening is substantially square.

6. A lighting device as recited in claim 1, wherein the at, least one, solid state light emitter is mounted on the heat sink.

7. A lighting device as recited in claim 1, wherein the lighting device further comprises a light emitter board mounted on the heat sink, the at least one solid state light emitter mounted 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.

8. A lighting device as recited in claim 7, wherein the basket assembly, the upper housing and the light emitter board together define a light mixing chamber.

9. A lighting device as recited in claim 1, wherein the at least one solid state light emitter is an LED.

10. A lighting device as recited in claim 1, wherein the lighting device comprises a plurality of solid state light emitters.

11. A lighting device as recited in claim 10, wherein each of the plurality of solid state light emitters is an LED.

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

13. A lighting device as recited in claim 1, wherein the basket assembly comprises at least one frame member and at least one lens.

14. A lighting device as recited in claim 13, wherein the lighting device further comprises at least one diffusing film mounted on the lens.

15. A lighting device as recited in claim 1, wherein the basket assembly comprises at least a first frame, the first frame comprising at least one first frame member and at least one second frame member, the first frame member defining a first opening, at least one first lens in the first opening, at least one space between the first frame member and the second frame member, at least one second lens in the space.

16. A lighting device as recited in claim 1, wherein the lighting device further comprises at least one additional component in contact with the heat sink element.

17. A lighting device as recited in claim 16, wherein the at least one additional component comprises at least one element selected from among a power supply module and a junction box.

18. A lighting device, comprising:

a heat sink element;

an upper housing mounted to the heat sink element;

a basket assembly attached to the upper housing;

at least one solid state light emitter thermally coupled to the heat sink element; and

a baffle assembly attached to the upper housing,

the basket assembly comprising at least a first frame,

the first frame comprising at least one first frame member and at least one second frame member,

the first frame member defining a first opening, at least one first lens being in the first opening,

at least one space provided between the first frame member and the second frame member, at least one second lens in the space.

19. A lighting device as recited in claim 18, wherein the first frame consists of the first frame member and the second frame member, and the second lens covers an entirety of the space between the first frame member and the second frame member.

20. A lighting device as recited in claim 18, wherein:

the first frame consists of the first frame member and the second frame member,

the second frame member comprises a second frame member first portion, a second frame member second portion, a second frame member third portion and a second frame member fourth portion,

a first space is located between the first-second frame member first portion and the first frame member,

a second space is located between the second frame member second portion and the first frame member,

a third space is located between the second frame member third portion and the first frame member,

a fourth space is located between the second frame member fourth portion and the first frame member,

the first opening is a central opening and is substantially square, and a second lens is in each of the first, second, third and fourth spaces.

21. A lighting device as recited in claim 18, wherein the at least one solid state light emitter is mounted on the heat sink.

22. A lighting device as recited in claim 18, wherein the lighting device further comprises a light emitter board mounted on the heat sink, the at least one solid state light emitter mounted 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.

23. A lighting device as recited in claim 22, wherein the basket assembly, the upper housing and the light emitter board together, define a light mixing chamber.

24. A lighting device as recited in claim 18, wherein the at least one solid state light emitter is an LED.

25. A lighting device as recited in claim 18, wherein the lighting device comprises a plurality of solid state light emitters.

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

27. A lighting device as recited in claim 18, wherein at least a portion of the upper housing is substantially frustopyramidal.

28. A lighting device as recited in claim 18, wherein the lighting device further comprises at least one diffusing film mounted on the first lens.

29. A lighting device as recited in claim 18, wherein the lighting device further comprises at least one additional component in contact with the heat sink element.

30. A lighting device as recited in claim 29, wherein the at least one additional component comprises at least one element selected from among a power supply module and a junction box.

31. A lighting device, comprising:

a heat sink element;

an upper housing mounted to the heat sink element;

a basket assembly attached to the upper housing;

at least one solid state light emitter thermally coupled to the heat sink element; and

a baffle assembly attached to the upper housing,

the heat sink element extending farther in a first direction which is in a first plane than a largest dimension of the upper housing in any plane which is parallel to the first plane.

32. A lighting device as recited in claim 31, wherein the largest dimension of the upper housing is in a second plane which is parallel to the first plane.

33. A lighting device as recited in claim 32, wherein the baffle assembly comprises a plurality of side walls and an end region, the end region defining a light exit opening, the light exit opening defining a first substantially planar area, the first plane parallel to the first substantially planar area.

34. A lighting device as recited in claim 31, wherein the at least one solid state light emitter is mounted on the heat sink.

35. A lighting device as recited in claim 31, wherein the lighting device further comprises a light emitter board mounted on the heat sink, the at least one solid state light emitter mounted 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.

36. A lighting device as recited in claim 35, wherein the basket assembly, the upper housing and the light emitter board together define a light mixing chamber.

37. A lighting device as recited in claim 31, wherein the at least one solid state light emitter is an LED.

38. A lighting device as recited in claim 31, wherein the lighting device comprises a plurality of solid state light emitters.

39. A lighting device as recited in claim 38, wherein each of the plurality of solid state light emitters is an LED.

40. A lighting device as recited in claim 31, wherein at least a portion of the upper housing is substantially frustopyramidal.

41. A lighting device as recited in claim 31, wherein the basket assembly comprises at least one frame member and at least one lens.

42. A lighting device as recited in claim 41, wherein the lighting device further comprises at least one diffusing film mounted on the lens.

43. A lighting device as recited in claim 31, wherein the basket assembly comprises at least a first frame, the first frame comprising at least one first frame member and at least one second frame member, the first frame member defining a first opening, at least one first lens in the first opening, at least one space between the first frame member and the second frame member, at least one second lens in the space.

44. A lighting device as recited in claim 31, wherein the lighting device further comprises at least one additional component in contact with the heat sink element.

45. A lighting device as recited in claim 44, wherein the heat sink element comprises a first side and a second side, the at least one additional component and the upper housing both in contact with the first side of the heat sink element.

46. A lighting device as recited in claim 44, wherein the at least one additional component comprises at least one element selected from among a power supply module and a junction box.

47. A lighting device as recited in claim 46, wherein the power supply module comprises a compartment in which there is a power supply.

48. A lighting device as recited in claim 44, wherein the upper housing is thermally coupled to the heat sink element.

49. A lighting device as recited in claim 48, wherein the baffle assembly is thermally coupled to the upper housing.

50. A lighting device as recited in claim 49, wherein the lighting device further comprises at least one additional component in contact with the heat sink element.

51. A lighting device as recited in claim 50, wherein the heat sink element comprises a first side and a second side, the at least one additional component and the upper housing both in contact with the first side of the heat sink element.

52. A lighting device as recited in claim 50, wherein the at least, one additional component comprises at least one element selected from among a power supply module and a junction box.

53. A lighting device as recited in claim 31, wherein the baffle assembly comprises a plurality of side walls and an end region, the end region defining a light exit opening, the light exit opening defining a first substantially planar area, at least one of the side walls of the baffle assembly extending from the end region at an angle of less than 90 degrees relative to the first substantially planar area.

54. A lighting device, comprising:

a heat sink element;

an upper housing mounted to the heat sink element;

a basket assembly attached to the upper housing;

at least one solid state light emitter thermally coupled to the heat sink element;

a baffle assembly attached to the upper housing; and

at least one additional component in contact with the heat sink element.

55. A lighting device as recited in claim 54, wherein the at least one additional component comprises at least one element selected from among a power supply module and a junction box.

56. A lighting device as recited in claim 54, wherein the at least one solid state light emitter is mounted on the heat sink.

57. A lighting device as recited in claim 54, wherein the lighting device further comprises a light emitter board mounted on the heat sink, the at least one solid state light emitter mounted 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.

58. A lighting device as recited in claim 57, wherein the basket assembly, the upper housing and the light emitter board together define a light mixing chamber.

59. A lighting device as recited in claim 54, wherein the at least one solid state light emitter is an LED.

60. A lighting device as recited in claim 54, wherein the lighting device comprises a plurality of solid state light emitters.

61. A lighting device as recited in claim 60, wherein each of the plurality of solid state light emitters is an LED.

62. A lighting device as recited in claim 54, wherein at least a portion of the upper housing is substantially frustopyramidal.

63. A lighting device as recited in claim 54, wherein the basket assembly comprises at least one frame member and at least one lens.

64. A lighting device as recited in claim 63, wherein the lighting device further comprises at least one diffusing film mounted on the lens.

65. A lighting device, comprising:

a heat sink element;

an upper housing thermally coupled to the heat sink element;

a basket assembly attached to the upper housing;

at least one solid state light emitter thermally coupled to the heat sink element; and

a baffle assembly attached to the upper housing.

66. A lighting device as recited in claim 65, wherein the at least one solid state light emitter is mounted on the heat sink.

67. A lighting device as recited in claim 65, wherein the lighting device further comprises a light emitter board mounted on the heat sink, the at least one solid state light emitter mounted 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.

68. A lighting device as recited in claim 67, wherein the basket assembly, the upper housing and the light emitter board together define a light mixing chamber.

69. A lighting device as recited in claim 65, wherein the at least one solid state light emitter is an LED.

70. A lighting device as recited in claim 65, wherein the lighting device comprises a plurality of solid state light emitters.

71. A lighting device as recited in claim 70, wherein each of the plurality of solid state light emitters is an LED.

72. A lighting device as recited in claim 65, wherein the lighting device further comprises at least one additional component in contact with the heat sink element.

73. A lighting device as recited in claim 72, wherein the at least one additional component comprises at least one element selected from among a power supply module and a junction box.

74. A lighting device as recited in claim 73, wherein the power supply module comprises a compartment in which there is a power supply.

75. A lighting device as recited in claim 73, wherein the baffle assembly is thermally coupled to the upper housing.

76. A lighting device as recited in claim 72, wherein the heat sink element comprises a first side and a second side, the at least one additional component and the upper housing both in contact with the first side of the heat sink element.

77. A lighting device as recited in claim 65, wherein the baffle assembly is thermally coupled to the upper housing.

78. A lighting device, comprising:

a basket assembly; and

a baffle assembly,

the baffle assembly comprising a plurality of side walls and an end region, the end region defining a light exit opening, the light exit opening defining a first substantially planar area, at least one of the side walls of the baffle assembly extending from the end region at an angle of less than 90 degrees relative to the first substantially planar area,

a periphery of the basket assembly within a space defined by the baffle assembly.

79. A lighting device as recited in claim 78, wherein the baffle assembly comprises four side walls, and the four side walls define a substantially frustopyramidal shape.

80. A lighting device as recited in claim 78, wherein the angle is between 18 degrees and 27 degrees.

81. A lighting device as recited in claim 78, wherein the light exit opening is substantially square.

82. A lighting device as recited in claim 78, wherein the lighting device further comprises at least one light emitter.

83. A lighting device as recited in claim 82, wherein the light emitter comprises a plurality of solid state light emitters.

84. A lighting device as recited in claim 83, wherein each of the plurality of solid state light emitters is an LED.

85. A lighting device as recited in claim 78, wherein the basket assembly comprises at least one frame member and at least one lens.

86. A lighting device as recited in claim 85, wherein the lighting device further comprises at least one diffusing film mounted on the lens.

87. A lighting device as recited in claim 78, wherein the basket assembly comprises at least a first frame, the first frame comprising at least one first frame member and at least one second frame member, the first frame member defining a first opening, at least one first lens in the first opening, at least one space between the first frame member and the second frame member, at least one second lens in the space.

88. A lighting device as recited in claim 87, wherein the lighting device further comprises at least one light emitter.

89. A lighting device as recited in claim 88, wherein the light emitter comprises a plurality of solid state light emitters.

90. A lighting device, comprising:

a basket assembly; and

a baffle assembly,

the basket assembly comprising at least a first frame,

the first frame comprising at least one first frame member and at least one second frame member,

the first frame member defining a first opening, at least one first lens in the first opening,

at least one space between the first frame member and the second frame member, at least one second lens in the space.

91. A lighting device as recited in claim 90, wherein the lighting device further comprises at least one light emitter.

92. A lighting device as recited in claim 91, wherein the light emitter comprises a plurality of solid state light emitters.

93. A lighting device as recited in claim 90, wherein the first frame consists of the first frame member and the second frame member, and the second lens covers an entirety of the space between the first frame member and the second frame member.

94. A lighting device as recited in claim 90, wherein:

the first frame consists of the first frame member and first, second, third and fourth second frame members,

a first space is located between the first second frame member and the first frame member,

a second space is located between the second second frame member and the first frame member,

a third space is located between the third second frame member and the first frame member,

a fourth space is located between the fourth second frame member and the first frame member,

the first opening is a central opening and is substantially square, and a second lens is in each of the first, second, third and fourth spaces.

95. A lighting device as recited in claim 90, wherein the lighting device further comprises at least one diffusing film mounted on the first lens.