Patent ID: 8733942

Claim:
An illumination system, comprising: a first solid-state light-emitting element for emitting a first color light in a first waveband region; a wavelength conversion device comprising a wheel body and a wavelength conversion section, wherein said wheel body comprises a rotation shaft, and said wavelength conversion section surrounds said rotation shaft and contains a phosphor coating, wherein by said phosphor coating, said first color light from said first solid-state light-emitting element is excited as a second color light in a second waveband region to be outputted to a surface to be illuminated; a second solid-state light-emitting element for emitting said first color light, wherein said first color light emitted by said second solid-state light-emitting element is directly outputted to said surface to be illuminated without undergoing any wavelength conversion; and a third solid-state light-emitting element for emitting a third color light in a third waveband region.