LED lighting device

• US 10,321,541 B2
• Filed: 07/07/2016
• Issued: 06/11/2019
• Est. Priority Date: 03/11/2011
• Status: Active Grant

• Current Assignee: Ilumi Solutions, Inc.
• Original Assignee: Ilumi Solutions, Inc.
• Inventors: Bora, Swapnil, Egan, Corey
• Primary Examiner(s): Philogene, Haissa
• Application Number:
  US15/204,992
• Publication Number:
  US 20160323972A1
• Time in Patent Office: 1,069 Days
• CPC Class Codes: F21K 9/238 Arrangement or mounting of circuit elements integrated in the light source
• 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: F21V 19/006 of point-like light sources, e.g. incandescent or halogen lamps, with screw-threaded or bayonet base of sources having contact pins, wires or blades F21V19/0005; of LEDs or sources mounted on printed-circuit board F21V19/001
• 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 23/06 the elements being coupling devices , e.g. connectors
• CPC Class Codes: F21V 29/77 with essentially identical diverging planar fins or blades, e.g. with fan-like or star-like cross-section
• CPC Class Codes: F21V 3/00 Globes; Bowls; Cover glasses with refracting properties F21V5/00; with reflecting properties F21V7/00; characterised by cooling arrangements F21V29/506
• CPC Class Codes: F21V 31/00 Gas-tight or water-tight arrangements
• CPC Class Codes: F21V 7/00 Reflectors for light sources characterised by cooling arrangements F21V29/505
• CPC Class Codes: F21Y 2113/10 of different colours
• CPC Class Codes: F21Y 2115/10 Light-emitting diodes [LED]
• CPC Class Codes: H05B 45/10 Controlling the intensity of the light
• CPC Class Codes: H05B 45/18 using temperature feedback
• CPC Class Codes: H05B 45/20 Controlling the colour of the light
• CPC Class Codes: H05B 45/22 using optical feedback
• CPC Class Codes: H05B 45/24 using electrical feedback from LEDs or from LED modules
• CPC Class Codes: H05B 45/325 Pulse-width modulation [PWM]
• CPC Class Codes: H05B 45/37 Converter circuits
• CPC Class Codes: H05B 47/105 in response to determined parameters
• CPC Class Codes: H05B 47/11 by determining the brightness or colour temperature of ambient light
• CPC Class Codes: H05B 47/115 : by determining the presence or movement of objects or living beings
• CPC Class Codes: H05B 47/16 : by timing means
• CPC Class Codes: H05B 47/19 : via wireless transmission
• CPC Class Codes: Y02B 20/40 : Control techniques providing energy savings, e.g. smart controller or presence detection

Abstract

A lighting device having a plurality of analog LEDs mounted on a substrate, a plurality of addressable digital LEDs mounted on the substrate, a first LED circuit connected to the plurality of analog LEDs, and a second LED circuit connected to the plurality of addressable digital LEDs. The plurality of analog LEDs and the plurality of addressable digital LEDs are arranged in an array or pattern on the substrate.

Claims

1. A computerized method for temperature compensation in a lighting device comprising:

providing the lighting device comprising a controller/processor, a light emitting diode (LED) current control circuit communicably coupled to the controller/processor, one or more LEDs communicably coupled to the LED current control circuit, and a temperature sensor communicably coupled to a controller/processor;

receiving a temperature sensor value from the temperature sensor;

estimating a temperature of one or more other portions of the lighting device using the controller/processor based on a mathematical equation and the temperature sensor value; and

controlling the temperature of the one or more other portions of the lighting device by controlling a current to the one or more LEDs whenever the temperature of the one or more other portions of the lighting device exceeds a threshold level.

2. The method as recited in claim 1, further comprising controlling the temperature of the one or more other portions of the lighting device by controlling the current to the one or more LEDs whenever the temperature of the one or more other portions of the lighting device exceeds the threshold level or has not reached a steady state value.

3. The method as recited in claim 1, wherein the one or more other portions of the lighting device comprise an LED junction, the LED current control circuit, at least one of the LEDs, or a combination thereof.

4. The method as recited in claim 1, wherein the temperature of the one or more other portions of the lighting device is estimated based on one or more parameters.

5. A computerized method for color compensation in a lighting device comprising:

providing the lighting device comprising a controller/processor, a light emitting diode (LED) current control circuit communicably coupled to the controller/processor, one or more LEDs communicably coupled to the LED current control circuit, and a temperature sensor communicably coupled to a controller/processor;

receiving a temperature sensor value from the temperature sensor;

estimating a temperature of one or more other portions of the lighting device using the controller/processor based on a mathematical equation and the temperature sensor value; and

controlling a color output of the one or more LEDs by controlling each current to the one or more LEDs whenever the temperature of the one or more other portions of the lighting device exceeds a threshold level and/or the color output of the one or more LEDs has changed.

6. The method as recited in claim 5, further comprising controlling the color output of the one or more LEDs by controlling each current to the one or more LEDs whenever the temperature of the one or more other portions of the lighting device exceeds a threshold level, the color output of the one or more LEDs has changed and/or the temperature has not reached a steady state value.

7. The method as recited in claim 5, wherein the one or more other portions of the lighting device comprise an LED junction, the LED current control circuit, at least one of the LEDs, or a combination thereof.

8. The method as recited in claim 5, wherein the temperature of the one or more other portions of the lighting device is estimated based on one or more parameters.

9. A method for calibrating a color between a first lighting device and a second lighting device comprising:

providing the first and second lighting devices, each lighting device comprising a controller/processor, a light emitting diode (LED) current control circuit communicably coupled to the controller/processor, and one or more LEDs communicably coupled to the LED current control circuit;

selecting the color for both the lighting devices;

matching the color on the first lighting device with the color on the second lighting device using a color calibration interface on a control device wirelessly connected to the first lighting device and the second lighting device;

sending a color calibration command from the control device to the first lighting device and the second lighting device; and

automatically adjusting one or more color parameters on the first lighting device or the second lighting device or both lighting devices based on the color calibration command.

10. The method as recited in claim 9, further comprising generating the one or more color parameters based on the color calibration command.

11. The method as recited in claim 9, further comprising repeating the selection step, matching step, sending step and adjusting step for the color or a new color.

12. A lighting device comprising:

a LED strip or panel comprising;

a plurality of analog LEDs mounted on a substrate,

a plurality of addressable digital LEDs mounted on the substrate, wherein the plurality of analog LEDs and the plurality of addressable digital LEDs are arranged in an array or pattern on the substrate,

a first LED circuit connected to the plurality of analog LEDs,

a second LED circuit connected to the plurality of addressable digital LEDs, and

one or more first connectors connected to the first LED circuit and the second LED circuit; and

a LED controller board comprising;

one or more second connectors configured to connect to the one or more first connectors,

an analog driver connected to the one or more second connectors and configured to drive the plurality of analog LEDs,

a digital driver connected to the one or more second connectors and configured to drive the plurality of addressable digital LEDs, and

a controller/processor connected to the analog driver and the digital driver.

13. The lighting device as recited in claim 12, wherein the plurality of analog LEDs and the plurality of addressable digital LEDs comprise one or more colors selected from cool white to warm white, red, green, blue, cyan, yellow, magenta, or black (UV light).

14. The lighting device as recited in claim 12, wherein the plurality of analog LEDs comprise white LEDs and the plurality of addressable digital LEDs comprise colored LEDs.

15. The lighting device as recited in claim 12, wherein the substrate is rigid, flexible or semi-flexible.

16. The lighting device as recited in claim 12, wherein the substrate comprises a sheet or a strip.

17. The lighting device as recited in claim 12, further comprising an external audio and/or video conversion device communicably coupled to the controller/processor of the LED controller board, wherein the external audio and/or video conversion device receives an audio and/or video input and translates the audio and/or video input into signals for the lighting device.

18. The lighting device as recited in claim 12, wherein the one or more first connectors are waterproof or water resistant.

19. The lighting device as recited in claim 12, further comprising a plurality of other lighting devices connected together and to the lighting device using the one or more first connectors.

20. The lighting device as recited in claim 19, wherein the one or more first connectors cause the plurality of other lighting devices and the lighting device to form interlocking lighting tiles or sheets.

21. The lighting device as recited in claim 19, wherein the plurality of other lighting devices and the lighting device cover or partially cover a wall, a ceiling, a door or other structure.

22. The lighting device as recited in claim 12, wherein the substrate is rigid, flexible or semi-flexible.

23. The lighting device as recited in claim 12, further one or more switches and/or one or more sensors connected to the controller/processor.

24. The lighting device as recited in claim 12, further comprising:

an automatic gain circuit connected to the controller/processor and a microphone connected to the automatic gain circuit;

a real time clock connected to the controller/processor and a battery connected to the real time clock; and

/or

a wired communication circuit and/or a wireless communication circuit with an antenna connected to or integrated into the controller/processor.

25. A wireless controller comprising:

an audio and/or video interface;

a processor/controller connected to the audio and/or video interface;

a wireless communication circuit and an antenna connected to the processor/controller; and

wherein the processor/controller receives an audio and/or video signal via the audio and/or video interface, translates the audio and/or video signal into brightness, color or pattern commands for a lighting device that enhance an audio and/or video corresponding the audio and/or video signal, and transmits the brightness, color or pattern commands to the lighting device via the wireless communications circuit and the antenna.