Patent ID: 9642209
Date: 2017-05-02
CPC Classifications: H05B,Y02B

Claim:
1. A system to control a plurality of channels of lighting elements to generate artificial sunlight with spectral characteristics that resemble natural sunlight, the system comprising: a controller communicatively coupled to receive input signals, to receive signals from a number of light sensors, and to control the plurality of channels of lighting elements, the controller operable to: sequentially individually activate each of the channels of lighting elements, receive signals from the light sensors, the respective signals representative of detected light for each of the channels of lighting elements; automatically create a calibrated setpoint for each of the channels of lighting elements based at least in part on the respective signals generated for the respective channel of lighting elements by the light sensors; automatically create respective drive signals for each of the channels of lighting elements based at least in part on the calibrated setpoint for the respective channel of lighting element and based at least in part on the received input signals; and automatically provide the respective drive signals to the channels of lighting elements to automatically vary a brightness level and a color level of the respective channels of lighting elements to produce a composite light along at least a portion of a daylight locus.