SELECTABLE CONTROL FOR HIGH INTENSITY LED ILLUMINATION SYSTEM TO MAINTAIN CONSTANT COLOR TEMPERATURE ON A LIT SURFACE

摘要

A lighting system includes a group of light emitting diode (LED) illumination devices, each of which includes a device driver. One or more sensors are configured to measure a characteristic of light received from the devices in an area of an environment that is illuminated by the devices. A controller detects when a value of the measured light characteristic received by a sensor deviates from a desired value. When this happens, the controller will cause the device drivers for each of the LED illumination devices to control LEDs in each illumination device so that the desired color temperature of light will be received at the location of the sensor while maintaining a substantially constant illuminance level at the location.

主权项

1. A lighting system, comprising:
a plurality of light emitting diode (LED) illumination devices, each of which comprises a first group of LEDs of a first color temperature and a second plurality of LEDs of a second color temperature; a plurality of illumination device drivers, wherein each illumination device driver is configured to control a corresponding LED illumination device; and a sensor that is configured to measure a characteristic of light received from the devices in an area of an environment that is illuminated by the devices; a wireless transmitter that is connected to the sensor and configured to transmit measurements detected by the sensor; and programming instructions that are configured to cause a processor to:
detect when a value of the measured light characteristic received by the sensor deviates from a desired value,in response to detecting that the value of the measured light characteristic deviates from the desired value, generate commands to cause the device drivers for each of the LED illumination devices to control the first group of LEDs and the second group of LEDs in its corresponding illumination device so that the desired color temperature of light will be received at the location while maintaining a substantially constant illuminance level at the location.