Patent ID: 8114692
Filing Date: 2012-02-14
Classification: G02F,H01L

Abstract:
1. A method comprising: providing a semiconductor light emitting device comprising a light emitting layer adapted to emit first light having a first peak wavelength; disposing a first wavelength converting material in a path of light emitted by the semiconductor light emitting device, wherein the first wavelength converting material is adapted to absorb the first light and emit second light having a second peak wavelength; disposing a second wavelength converting material in a path of light emitted by the semiconductor light emitting device, wherein the second wavelength converting material is adapted to absorb one of the first light and the second light and emit third light having a third peak wavelength; and forming a filter such that the first and second wavelength converting materials are disposed between the filter and the semiconductor light emitting device, wherein the filter is adapted to reflect fourth light having a fourth peak wavelength and transmit light having a peak wavelength longer or shorter than the fourth peak wavelength, wherein the fourth light comprises one of a portion of the second light and a portion of the third light.