Patent ID: 9683710
Date: 2017-06-20
CPC Classifications: F21K,F21Y,G02B,H01L,H05B

Claim:
1. An illumination device for generating output light, comprising: a substrate having a first surface; a plurality of light sources disposed on the first surface and arranged separate from each other, each of the light sources comprising a pump light-emitting element (LEE) and an inelastic scattering element arranged to convert pump light received from the pump LEE into color light having a spectral density distribution with a peak that is wider than, and has a local maximum within 50 nm of, a main peak included in a spectral density distribution of the pump light, wherein at least two of the light sources have pump LEEs configured to emit different pump light and have different inelastic scattering elements configured to convert the different pump light into different color light; and a light-mixing element adapted to receive light from the plurality of light sources and configured to mix the light from the plurality of light sources into output light comprising a superposition of the spectral density distributions of the inelastic scattering elements and having a spectral density distribution matching a target spectral power distribution within 10%.