Patent ID: 9557017
Date: 2017-01-31
CPC Classifications: F21K,F21V,F21Y,H01L,Y10S

Claim:
1. An illumination module comprising: at least one light emitting diode operable to produce an amount of light with a spectral power distribution; and a component of the illumination module configured to convert a portion of the amount of light emitted by the at least one light emitting diode to an amount of converted light, wherein the component includes a first type of wavelength converting material having a first wavelength converting characteristic, and a second type of wavelength converting material having a second wavelength converting characteristic that is different from the first wavelength converting characteristic, wherein the first type of wavelength converting material and the second type of wavelength converting material are physically separated from the at least one light emitting diode such that the first type of wavelength converting material and the second type of wavelength converting material are each in a direct optical path of the light emitted by the at least one light emitting diode; wherein an amount of the first type of wavelength converting material and an amount of the second type of wavelength converting material are selected such that the amount of converted light has a color point within a degree of departure Δu′v′ of 0.009 from a target color point in a CIE 1976 u′v′ diagram.