LED LIGHT FIXTURE

• US 20070247842A1
• Filed: 04/24/2007
• Published: 10/25/2007
• Est. Priority Date: 04/24/2006
• Status: Active Grant

• Current Assignee: Integrated Illumination Systems, Inc.
• Original Assignee: Integrated Illumination Systems, Inc.
• Inventors: Zampini, Mark A., Zampini, Thomas L.
• Granted Patent: US 7,766,511 B2
• Time in Patent Office: Days
• US Class Current: 362/227
• 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

4-1. The light fixture of claim 1 wherein said LED emits light from a selected portion of the electromagnetic spectrum.

61. A light fixture, comprising:

a lower skin layer possessing heat transfer properties;

a circuit board affixed to said lower skin layer;

a lower voltage power supply having connecting wires to be connected to an electrical system and wired to said circuit board;

an LED with a bottom surface and electrically connected to said circuit board;

said LED, when receiving electrical signals, emits light opposed to said bottom surface and substantially around a vertical axis extending through said bottom surface;

an optical component symmetrically positioned about said vertical axis of said LED;

a core that possesses heat transfer properties and is displaced from said LED, wherein said core is in thermal contact with said lower skin layer;

an upper skin layer containing a window over said LED and affixed to said core; and

said lower skin layer and said upper skin layer encompassing said LED.