LED light fixture

• US 9,461,748 B2
• Filed: 08/04/2015
• Issued: 10/04/2016
• Est. Priority Date: 05/24/2007
• Status: Active Grant

• Current Assignee: Federal Law Enforcement Development Services, Inc.
• Original Assignee: Federal Law Enforcement Development Services, Inc.
• Inventors: Pederson, John C.
• Primary Examiner(s): DOBSON, DANIEL G
• Application Number:
  US14/817,411
• Publication Number:
  US 20150341114A1
• Time in Patent Office: 427 Days
• US Class Current: 1/1
• CPC Class Codes: F21K 9/20 Light sources comprising attachment means
• CPC Class Codes: F21V 23/003 the elements being electronics drivers or controllers for operating the light source, e.g. for a LED array
• CPC Class Codes: F21V 3/049 Patterns or structured surfaces for diffusing light, e.g. frosted surfaces
• CPC Class Codes: F21V 5/04 of lens shape
• CPC Class Codes: F21Y 2115/10 Light-emitting diodes [LED]
• CPC Class Codes: H04B 10/1143 Bidirectional transmission
• CPC Class Codes: H04B 10/1149 Arrangements for indoor wireless networking of information
• CPC Class Codes: H04B 10/116 Visible light communication
• CPC Class Codes: H04B 10/40 Transceivers
• CPC Class Codes: H04B 10/502 LED transmitters
• CPC Class Codes: H05B 45/20 Controlling the colour of the light
• CPC Class Codes: H05B 45/397 Current mirror circuits
• CPC Class Codes: H05B 47/19 via wireless transmission
• CPC Class Codes: H05B 47/1965 using handheld communication devices
• CPC Class Codes: H05B 47/197 Sound control or voice control
• CPC Class Codes: H05B 47/198 Grouping of control procedures or address assignation to light sources
• CPC Class Codes: H05B 47/1985 Creation of lighting zones or scenes
• CPC Class Codes: Y02B 20/30 Semiconductor lamps, e.g. solid state lamps [SSL] light emitting diodes [LED] or organic LED [OLED]

Abstract

An LED light fixture includes one or more optical transceivers that have a light support having a plurality of light emitting diodes and one or more photodetectors attached thereto, and a processor in communication with the light emitting diodes and the one or more photodetectors. The processor is constructed and arranged to generate a communication or data transfer signal.

Claims

1. An LED light fixture comprising:

at least one optical transceiver comprising at least one location identifier, the optical transceiver further comprising;

a light support having at least one light emitting diode light unit comprising a plurality of light emitting diodes and at least one photodetector attached thereto, said plurality of light emitting diodes generating light in the visible spectrum as illumination, said illumination comprising a plurality of flashes of illumination, said flashes of illumination being at a frequency which is not observable to the unaided eyes of an individual; and

a processor in communication with the light emitting diode light unit and the at least one photodetector, the processor constructed and arranged to regulate said plurality of flashes of illumination to transmit at least one transmitted communication signal or data transfer, said at least one transmitted communication signal or data transfer comprising said at least one location identifier, said at least one photodetector being constructed and arranged for receipt of at least one received communication signal, said at least one transmitted communication signal being embedded within said illumination,

said at least one optical transceiver further comprising a lens proximate to said at least one light emitting diode.

2. The LED light fixture of claim 1, said LED light fixture further comprising an encoder module in communication with said at least one optical transceiver.

3. The LED light fixture of claim 1, said LED light fixture further comprising a camera and a microphone in communication with said at least one optical transceiver.

4. The LED light fixture of claim 1, said plurality of light emitting diodes being disposed in at least one of rows and columns.

5. The LED light fixture of claim 1, said at least one optical transceiver comprising a lower casing, an upper casing, and a circuit board disposed between said lower casing and said upper casing, said circuit board being in electrical communication with at least one light emitting diode and said photodetector.

6. An LED light fixture comprising:

at least one optical transceiver comprising at least one location identifier, the optical transceiver further comprising;

a light support having at least one light emitting diode light unit comprising a plurality of light emitting diodes and at least one photodetector attached thereto, said plurality of light emitting diodes generating light in the visible spectrum as illumination, said illumination comprising a plurality of flashes of illumination, said flashes of illumination being at a frequency which is not observable to the unaided eyes of an individual, said at least one optical transceiver further comprising a lens proximate to said at least one light emitting diode, a lower casing, an upper casing, and a circuit board disposed between said lower casing and said upper casing, said circuit board being in electrical communication with at least one light emitting diode and said photodetector; and

a processor in communication with the light emitting diode light unit and the at least one photodetector, the processor constructed and arranged to regulate said plurality of flashes of illumination to transmit at least one transmitted communication signal or data transfer embedded within said illumination.

7. The LED light fixture of claim 6, further comprising a lens assembly, said lens assembly comprising said lens and a retaining surface, said retaining surface being semi-spherical in shape.

8. The LED light fixture of claim 7, wherein said lens is spherical.

9. The LED light fixture of claim 8, said at least one optical transceiver further comprising an outer lens retainer assembly disposed over said lens assembly and said lens.

10. The LED light fixture of claim 9, wherein said lens assembly traverses said upper casing.

11. The LED light fixture of claim 10, wherein said outer lens retainer assembly is constructed to releasably engage said lens assembly and said upper casing.