Patent ID: 9261760
Filing Date: 2016-02-16
CPC Classification: F21V,G03B,H04N

Claim Text:
1. An illumination system, adapted to be used in a projection apparatus, and the illumination system comprising: a solid-state light source group; a cooling module thermally coupled to the solid-state light source group; and an ion fan, wherein the cooling module is located on a path of a forced convection air generated by the ion fan, wherein the solid-state light source group comprises a plurality of solid-state light-emitting elements, the cooling module comprises a plurality of heat sinks, the heat sinks are respectively and correspondingly connected to the solid-state light-emitting elements, at least one of the heat sinks is located on the path of the forced convection air generated by the ion fan, the solid-state light-emitting elements comprise a red, a blue, and a green light-emitting diode elements, and only the heat sink thermally coupled to the red light-emitting diode element and the heat sink thermally coupled to the green light-emitting diode element are located on the path of the forced convection air generated by the ion fan, wherein the heat sink thermally coupled to the red light-emitting diode element is located at an upstream of the forced convection air generated by the ion fan compared to the heat sink of the blue and the green light-emitting diode element.