US 10,383,189 B2Granted

Efficient dynamic light mixing for compact linear LED arrays

AssigneeAion LED, Inc.

InventorRyan Hanslip

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Abstract

Systems, software, and methods are provided for efficient, dynamic lighting control. In an embodiment, a two-channel LED lighting system is dynamically controlled to emulate dimming of an incandescent fixture. In an example, a lighting fixture may include red, green, blue, and white emitting LED modules. The lighting fixture may be controlled such that it produces generally white light from about 2150K candle light color to 5500K daylight white color with only 4 LEDs. Furthermore, the white LED may be controlled such that the white LED CRI is approximately 95 to ensure optimal results when mixed with red and green. In another embodiment, a dynamic two-channel LED lighting system is controlled to emulate dimming of an incandescent fixture. Specific dimming protocol can allow for efficient dimming which helps minimize the height of a linear light fixture and maintain diffusion with multiple colored point sources at minimal pitch.

Claims20

Dependent claims

A method of controlling a LED lighting fixture, comprising:

providing a first diode light source that emits light of a first characteristic;
providing a second diode light source that emits light of a second characteristic;
and
controlling the lighting fixture to modify the first diode light source and the second diode light source by selectively:
decreasing the first diode light source from a first percent output to a second percent output, which is lower than the first percent output, while increasing the second diode light source from a first percent output to a second percent output, which corresponds to the second percent output of the first diode light source,
varying the first diode light source from the second percent output to a third percent output, which is lower than the second percent output, while maintaining the second diode light source generally at the second percent output thereof, or
varying the second diode light source from the second percent output to a third percent output, which is lower that the second percent output of the second diode light source, while maintaining the first diode light source generally at the third percent output thereof;
wherein:
a rate of change associated with decreasing the output of the first diode light source from the first percent output to the second percent output is opposite to a rate of change associated with increasing the output of the second diode light source from the first percent output to the second percent output, and
a rate of change associated with decreasing the output of the first diode light source from the second percent output to the third percent output is equal to a rate of change associated with decreasing the output of the second diode light source from the second percent output to the third percent output.

7 more elements

A method of controlling a LED lighting fixture, comprising:

providing a first diode light source that emits light of a first characteristic;
providing a second diode light source that emits light of a second characteristic;
controlling the lighting fixture to modify the first diode light source and the second diode light source by selectively
decreasing the first diode light source from a first percent output to a second percent output, which is lower than the first percent output, while increasing the second diode light source from a first percent output to a second percent output, which corresponds to the second percent output of the first diode light source,
varying the first diode light source from the second percent output to a third percent output, which is lower than the second percent output, while maintaining the second diode light source generally at the second percent output thereof, and
varying the second diode light source from the second percent output to a third percent output, which is lower that the second percent output of the second diode light source, while maintaining the first diode light source generally at the third percent output thereof;
and
wherein:
the first diode light source outputs light at a first temperature, and the second diode light source outputs light at a second temperature that is different from the first temperature;
a rate of change associated with decreasing the output of the first diode light source from the first percent output to the second percent output is opposite to a rate of change associated with increasing the output of the second diode light source from the first percent output to the second percent output;
and
a rate of change associated with decreasing the output of the first diode light source from the second percent output to the third percent output is equal to a rate of change associated with decreasing the output of the second diode light source from the second percent output to the third percent output.

9 more elements

Dependencies are inferred from the claim text.

Facts

Application: 16/160,536Filed 15 Oct 2018 · continuation
Priority: 26 Sep 2016
Published: US 2019/0053349 A114 Feb 2019
Granted: 13 Aug 2019
Term ends: Not estimatedThe source records don’t support an estimate.

Classification4 codes

H05B 47/19
By remote control: via wireless transmission
H05B 45/10
Circuit arrangements for operating light-emitting diodes [LED]: controlling the intensity of the light
H05B 45/3577
Emulating the electrical or functional characteristics of incandescent lamps: emulating the dimming characteristics, brightness or colour…
H05B
Electric heating

Family

Application62/400,016Us provisional application · filed 26 Sep 2016
Application62/483,883Us provisional application · filed 10 Apr 2017
Application62/524,380Us provisional application · filed 23 Jun 2017
Application15/716,244Parent of this continuation · filed 26 Sep 2017
US 10,111,294 B1Parent of this continuation · filed 23 Oct 2018
US 2019/0053349 A1Pre-grant publication · published 14 Feb 2019
US 2018/0310379 A1Published application
US 10,383,189 B2This patent

From the US filing history. Foreign family members aren’t listed.