Patent ID: 9408274
Filing Date: 2016-08-02
CPC Classification: F21K,H05B

Claim Text:
1. A system comprising: a first set of light emitting diodes configured to emit blue light having first wavelengths in a first wavelength range in a spectrum of blue light, wherein the first set of light emitting diodes includes a green phosphor configured to convert the blue light having the first wavelengths to green light; a second set of light emitting diodes configured to emit blue light having second wavelengths in a second wavelength range in the spectrum of blue light, wherein the second set of light emitting diodes includes a red phosphor configured to convert the blue light having the second wavelengths to red light, and wherein the first wavelength range is less than the second wavelength range; and a control module configured to control currents through the first set of light emitting diodes and the second set of light emitting diodes.