Systems and methods for optimizing power and control of a multicolored lighting system

Patent metadata

Field	Value
Publication number	US-9844115-B2
Application number	US-201615210713-A
Country	US
Kind code	B2
Filing date	Jul 14, 2016
Priority date	Jul 14, 2015
Publication date	Dec 12, 2017
Grant date	Dec 12, 2017

Abstract

Embodiments of the present invention are related to a lighting system comprising a control unit that manages a lighting device with an LED board within an optical chamber. The LED board includes a first string of LEDs and a second string of LEDs. The control unit and the LED board are configured to electrically couple to first and second wires. The first string of LEDs and the second string of LEDs are configured to emit light having different spectral power distributions within the visible spectrum. The first string of LEDs is oriented in an electrically opposite direction than the second string of LEDs. The control unit comprises a switch configured to direct current between the first wire and second wire. The wire to which current is directed is designated active. The designated active wire activates one of the first string of LEDs and second string of LEDs.

First claim

That which is claimed is:

1. A lighting system comprising:
a control unit comprising a color indicator; and
a lighting device comprising
an LED board within an optical chamber comprising
a first string of LEDs, and
a second string of LEDs,

wherein each of the control unit and the LED board are configured to electrically couple to first and second wires;
wherein the first string of LEDs and the second string of LEDs are configured to emit light having different spectral power distributions within the visible spectrum, defining a first color and a second color, respectively;
wherein the first string of LEDs is oriented in an electrically opposite direction than the second string of LEDs;
wherein the control unit comprises a switch configured to direct current between the first wire and second wire;
wherein the first and second strings of LEDs are configured to be alternately activated to emit light having a perceived third color defined as a perceived emitted color;
wherein the color indicator is configured to display one of an emitted color and a perceived emitted color of the lighting device;
wherein the wire to which current is directed is designated active; and
wherein the designated active wire activates one of the first string of LEDs and the second string of LEDs.

2. The system according to claim 1 wherein the control unit comprises a timer configured to communicate a time of day; and wherein the first color, the second color, or the third perceived color is changed based on the time of day.

3. The system according to claim 1 wherein the control unit is operable to alternate the designated active wire between the first wire and the second wire within a range from every 16 milliseconds to every 32 milliseconds thereby activating the respective LED string.

4. The system according to claim 1 wherein the first color is one of a red colored light, a blue colored light, and green colored light; and wherein the second color is one of a red colored light, a blue colored light, and green colored light that is not emitted by the first string of LEDs.

5. The system according to claim 4 wherein the lighting device is configured to maintain a consistent emission of colored light designated by one of:
the color emitted by the first string of LEDs;
the color emitted by the second string of LEDs; and
a color from the spectrum of combinatory colors ranging between the color emitted by the first string of LEDs and the color emitted by the second string of LEDs.

6. The system according to claim 1 wherein a ratio of active time between the first string of LEDs and the second string of LEDs is a ratio of 1:1.

7. The system according to claim 1 wherein a ratio of active time between the first string of LEDs and the second string of LEDs is a ratio of 2:1.

8. The system according to claim 1 wherein a ratio of activation between the first string of LEDs and the second string of LEDs includes a ratio capable of producing a perceivable color from the spectrum of combinatory colors ranging between the color emitted by the first string of LEDs and the color emitted by the second string of LEDs.

9. A control unit comprising:
a dimmer;
a luminosity indicator;
a color synthesizer;
a color indicator;
a driver circuit; and
a power supply;
wherein the dimmer is configured to control the amount of voltage delivered to a first wire and a second wire;
wherein the luminosity indicator is configured to display luminosity of a lighting device electrically coupled to the first wire and second wire;
wherein the color indicator is configured to display one of an emitted color and a perceived emitted color of the lighting device;
wherein the color synthesizer includes a switch configured to alternate a frequency of forwardly biased current between the first wire and the second wire; and
wherein the wire that receives forwardly biased current is designated active when a respective string of LEDs is operable.

10. The control unit according to claim 9 further comprising a timer configured to communicate a time of day; and wherein one of the emitted color and perceived emitted color is changed based on the time of day.

11. The control unit according to claim 9 wherein the lighting device comprises a plurality of lighting devices within a lighting system; and wherein the driver circuit and power supply are configured to drive the plurality of lighting devices.

12. The control unit according to claim 9 wherein the control unit is managed by at least one of a remote control and a computerized device.

13. The control unit according to claim 9 further comprising an electrical outlet adapter configured to receive a plurality of electrical plugs from lighting devices and manage the emitted color and luminosity thereof.

14. The control unit according to claim 9 wherein the color synthesizer is configured to alternate a designated active wire between the first wire and second wire within the range from every 16 milliseconds to every 32 milliseconds.

15. A luminaire comprising:
a bulb defined by an optical chamber and an Edison base;
a control unit comprising a color indicator and a color synthesizer; and
an LED board within the optical chamber comprising:
a first string of LEDs, and
a second string of LEDs;

wherein the first string of LEDs and the second string of LEDs are configured to emit a differently colored light;
wherein the first string of LEDs is oriented in an electrically opposite direction than the second string of LEDs;
wherein the color indicator is configured to display one of an emitted color and a perceived emitted color of the lighting device;
wherein the color synthesizer includes a switch configured to alternate a frequency of forwardly biased current between the first wire and the second wire;
wherein the luminaire is configured to maintain a consistent emission of colored light designated by one of:
the color emitted by the first string of LEDs;
the color emitted by the second string of LEDs; and
a perceived color from the spectrum of combinatory colors ranging from the color emitted by the first string of LEDs and the color emitted by the second string of LEDs.

16. The luminaire according to claim 15 wherein the first string of LEDs is configured to emit one of a red colored light, a blue colored light, and green colored light, and the second string of LEDs is configured to emit one of a red colored light, a blue colored light, and green colored light not emitted by the first string of LEDs.

17. The luminaire according to claim 16 wherein the frequency of activation between the first string of LEDs and the second string of LEDs includes a ratio capable of producing a perceivable color from the spectrum of combinatory colors ranging between the color emitted by the first string of LEDs and the color emitted by the second string of LEDs.

18. The luminaire according to claim 15 wherein the ratio of activation between the first string of LEDs and the second string of LEDs is 2:1.

Assignees

• Lighting Science Group Corp

Inventors

• Beck John
• Irvin Julia
• Boomgaarden Mark

Classifications

• H05B45/20

  Controlling the colour of the light · CPC title

• F21K9/232 Primary

  specially adapted for generating an essentially omnidirectional light distribution, e.g. with a glass bulb · CPC title

• F21S2/00

  Systems of lighting devices, not provided for in main groups F21S4/00 - F21S10/00 or F21S19/00, e.g. of modular construction · CPC title

• F21V3/02

  characterised by the shape · CPC title

• F21Y2115/10

  Light-emitting diodes [LED] · CPC title