LED light fixture

• US 8,070,325 B2
• Filed: 06/23/2010
• Issued: 12/06/2011
• Est. Priority Date: 04/24/2006
• Status: Expired due to Fees

• Current Assignee: Integrated Illumination Systems, Inc.
• Original Assignee: Integrated Illumination Systems, Inc.
• Inventors: Zampini, Thomas L., Zampini, Thomas L. II, Zampini, Mark A.
• Primary Examiner(s): TSO, LAURA K
• Application Number:
  US12/822,047
• Publication Number:
  US 20100307075A1
• Time in Patent Office: 531 Days
• Field of Search: 362/294, 362/547, 362/373, 362/404, 362/153, 527/931
• US Class Current: 362/294
• CPC Class Codes: E04B 9/006 with means for hanging lighting fixtures or other appliances to the framework of the ceiling
• CPC Class Codes: F21S 2/00 Systems of lighting devices, not provided for in main groups F21S4/00 - F21S10/00 or F21S19/00, e.g. of modular construction
• 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: F21S 8/033 the surface being a wall or like vertical structure, e.g. building facade
• CPC Class Codes: F21S 8/037 for mounting in a corner, i.e. between adjacent walls or wall and ceiling
• 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: F21S 9/02 the power supply being a battery or accumulator
• CPC Class Codes: F21S 9/022 Emergency lighting devices
• CPC Class Codes: F21S 9/03 rechargeable by exposure to light
• 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 21/005 for several lighting devices in an end-to-end arrangement, i.e. light tracks
• CPC Class Codes: F21V 23/04 the elements being switches safety devices F21V25/00
• CPC Class Codes: F21V 23/0435 activated by remote control means
• CPC Class Codes: F21V 23/0442 activated by means of a sensor, e.g. motion or photodetectors
• CPC Class Codes: F21V 29/74 with fins or blades
• CPC Class Codes: F21V 29/89 Metals
• CPC Class Codes: F21V 33/0052 Audio or video equipment, e.g. televisions, telephones, cameras or computers; Remote control devices therefor
• CPC Class Codes: F21V 33/006 General building constructions or finishing work for buildings, e.g. roofs, gutters, stairs or floors; Garden equipment; Sunshades or parasols
• 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: F21W 2121/00 Use or application of lighting devices or systems for decorative purposes, not provided for in codes F21W2102/00 – F21W2107/00
• CPC Class Codes: F21Y 2105/10 : comprising a two-dimensional array of point-like light-generating elements
• CPC Class Codes: F21Y 2115/10 : Light-emitting diodes [LED]
• CPC Class Codes: H05B 45/00 : Circuit arrangements for operating light-emitting diodes [LED]

Abstract

A light fixture using LEDs includes a lower skin layer possessing heat transfer properties. A circuit board is affixed to the lower skin layer, and a single LED, or a plurality of LEDs, is electrically connected to the circuit board. The single LED, or plurality of LEDs, when electrically activated, emits light through substantially around a vertical axis. The light fixture also includes a core possessing heat transfer properties that is in thermal contact with the LED and has an interior cavity for the LED. The core is affixed to the lower skin layer, and an upper skin layer, containing a window or windows over the LED or LEDs, is affixed to the core. The LEDs may be white, infrared, ultraviolet, and/or colored and may be mounted on a printed circuit board or individually.

Claims

1. A ceiling panel having a supporting structure for one or more devices, the ceiling panel comprising:

a first layer and a second layer surrounding one or more devices affixed to the first layer;

a structure between the first layer and the second layer, the structure comprising one or more cores surrounding the one or more devices; and

wherein the structure distributes heat from the one or more devices via the one or more cores to the first layer and the second layer.

2. The ceiling panel of claim 1, wherein the ceiling panel is configured in one of rigidity or stability for use in a predetermined environment.

3. The ceiling panel of claim 1, wherein the ceiling panel is configured to be lightweight while supporting the one or more devices.

4. The ceiling panel of claim 1, wherein the ceiling panel has a connecting power wire to outside of the ceiling panel.

5. The ceiling panel of claim 1, wherein the ceiling panel is configured to be a hanging ceiling panel.

6. The ceiling panel of claim 1, wherein the ceiling panel is configured to be recessed mounted.

7. The ceiling panel of claim 1, wherein the one or more devices comprises one of a printed circuit board, an audio/video circuitry, a wireless transmitter, a motion detector, or a temperature monitoring circuitry.

8. The ceiling panel of claim 1, wherein the one or more devices comprises a lighting fixture.

9. The ceiling panel of claim 1, wherein one of the first layer or the second layer comprises a window.

10. A panel having a supporting structure for one or more devices, the panel comprising:

a first layer and a second layer;

one or more heat producing elements affixed to one of the first layer or the second later;

a plurality of cores located between the first layer and the second layer and at least one core of the plurality of cores surrounding the one or more heat producing elements; and

wherein a density and a size of the plurality of cores provide a predetermined heat conductivity, the heat produced from the one or more heat producing elements is distributed via the at least one core to one of the first layer or the second layer.

11. The panel of claim 10, wherein the one or more heat producing elements comprises one of a printed circuit board, an audio/video circuitry, a wireless transmitter, a motion detector, or a temperature monitoring circuitry or a battery.

12. The panel of claim 10, wherein the density, the size and a shape of the plurality of cores provides the predetermined heat conductivity.

13. The panel of claim 10, wherein the density, the size and a shape of the plurality of cores provides a strength of the panel.

14. The panel of claim 10, wherein the at least once core is cut to fit the one or more heat producing elements.

15. The panel of claim 10, wherein a shape of the plurality of cores is constructed to fit the one or more heat producing elements.

16. The panel of claim 10, wherein the at least one core is in thermal contact with the one or more heat producing elements.

17. The panel of claim 10, wherein the at least one core surrounds the one or more devices of a Light Emitting Diode (LED) lighting fixture.

18. The panel of claim 10, wherein one of the first layer or the second layer comprises predetermined heat transfer properties.

19. The panel of claim 10, wherein the panel comprises one or more layers between the first layer and the second layer.

20. The panel of claim 10, further comprising one or more of a lens, reflector, geometric form or graphic films to direct light distribution to edges of the panel.