US 2017/0013692 A1 · SYSTEM AND METHOD FOR CONTROLLING A PLURALITY OF LIGHT FIXTURE OUTPUTS

Abstract

A method of controlling a plurality of light fixtures. The method includes determining first light outputs for each of the plurality of light fixtures. The method also includes determining a first spectrum of light reflected off of a surface. The method further includes determining a first difference between the first light outputs and desired light outputs for each of the plurality of light fixtures. The method also includes determining a second difference between the first spectrum of light reflected off of the surface and a desired spectrum of light reflected off of the surface. The method further includes calculating an updated output spectrum for the plurality of light fixtures based at least in part on the first difference and the second difference. The method also includes determining a second set of light source output values based at least in part on the updated output spectrum.

Claims20

Dependent claims

A method of controlling a plurality of light fixtures, the method comprising:

driving light sources in each of the plurality of light fixtures at a first set of light source output values;
determining first light outputs for each of the plurality of light fixtures, each of the first light outputs having a first output spectrum;
determining a first spectrum of light reflected off of a surface, the light reflected off of the surface corresponding to light from the plurality of light fixtures;
determining a first difference between the first light outputs and desired light outputs for each of the plurality of light fixtures;
determining a second difference between the first spectrum of light reflected off of the surface and a desired spectrum of light reflected off of the surface;
calculating an updated output spectrum for the plurality of light fixtures based at least in part on the first difference and the second difference;
determining a second set of light source output values based at least in part on the updated output spectrum;
and
driving the light sources in each of the plurality of light fixtures at the second set of light source output values.

6 more elements

A lighting system comprising:

a plurality of light fixtures, each of the plurality of light fixtures including a plurality of light sources;
and
a controller configured to
drive the plurality of light sources in each of the plurality of light fixtures at a first set of light source output values,
determine first light outputs for each of the plurality of light fixtures, each of the first light outputs having a first output spectrum,
determine a first spectrum of light reflected off of a surface, the light reflected off of the surface corresponding to light from the plurality of light fixtures,
determine a first difference between the first light outputs and desired light outputs for each of the plurality of light fixtures,
determine a second difference between the first spectrum of light reflected off of the surface and a desired spectrum of light reflected off of the surface,
calculate an updated output spectrum for the plurality of light fixtures based at least in part on the first difference and the second difference,
determine a second set of light source output values based at least in part on the updated output spectrum, and
drive the plurality of light sources in each of the plurality of light fixtures at the second set of light source output values.

8 more elements

A controller for a lighting system, the controller comprising:

an electronic processor and a computer readable medium, the computer readable medium including executable instructions capable of being retrieved from the computer readable medium and executed by the electronic processor to cause the controller to
drive light sources in each of a plurality of light fixtures at a first set of light source output values,
determine first light outputs for each of the plurality of light fixtures, each of the first light outputs having a first output spectrum,
determine a first spectrum of light reflected off of a surface, the light reflected off of the surface corresponding to light from the plurality of light fixtures,
determine a first difference between the first light outputs and desired light outputs for each of the plurality of light fixtures,
determine a second difference between the first spectrum of light reflected off of the surface and a desired spectrum of light reflected off of the surface,
calculate an updated output spectrum for the plurality of light fixtures based at least in part on the first difference and the second difference,
determine a second set of light source output values based at least in part on the updated output spectrum, and
drive the light sources in each of the plurality of light fixtures at the second set of light source output values.

6 more elements

Dependencies are inferred from the claim text.

System and method for controlling a plurality of light fixture outputs

Life of this patent

System and method for controlling a plurality of light fixture outputs

Life of this patent

Abstract

Claims20