Patent ID: 8981665
Filing Date: 2015-03-17
Classification: H05B

Abstract:
1. A method of controlling a color of light from a light source, the light source including an LED and a pumped material, the method comprising: providing a series of current pulses to the LED, the LED providing a series of light pulses in response to the provided series of current pulses; directing the series of light pulses provided by the LED to the pumped material, wherein the pumped material is adapted to absorb at least some of the directed light and to emit light having a spectrum of second wavelengths; and controlling a time-averaged chromaticity coordinate of light emitted from the light source, while maintaining the time-averaged luminosity of the light emitted from the light source, by controlling the series of current pulses and by controlling a temperature of the LED, the emitted light including a combination of the light having the spectrum of second wavelengths and light from the series of light pulses provided by the LED.