Patent ID: 8192047

Claim:
An LED lighting system for producing light having improved CRI, comprising: a plurality of LEDs, each LED disposed and configured to produce respective LED-emitted light, wherein the plurality of LEDs include three blue LEDs having a first characteristic wavelength and a cyan LED having a second characteristic wavelength, wherein the first characteristic wavelength is different from the second characteristic wavelength; and a mixed phosphor layer overlying at least a portion of one of the plurality of LEDs, the mixed phosphor layer having a first phosphor and a second phosphor disposed and configured to absorb at least a portion of the respective LED-emitted light and produce phosphor-emitted light˜ the first phosphor forming 85%-95% of the mixed phosphor layer and producing, a phosphor-emitted light of a third characteristic wavelength, the second phosphor forming 5%-15% of the mixed phosphor layer and producing a phosphor emitted light of a fourth characteristic wavelength, wherein the third characteristic wavelength is different than the fourth characteristic wavelength.