LIGHT SOURCE SYSTEM AND PROJECTION DEVICE

摘要

This invention provides a light source system and a projection device. The light source system includes an excitation light source (301) for generating a excitation light (2011), a wavelength conversion device (306), a supplemental light source for generating a supplemental light, a light guiding device for directing the supplemental light to the wavelength conversion device, a light collection device for collecting the supplemental light that scattered and reflected by the wavelength conversion device. By setting the relative sizes of the light guiding device and the light collection device, the luminous flux of the supplemental light that is lost due to the light guiding device is less than or equal to a quarter of that the luminous flux of the supplemental light collected by the light collection device. Therefore, by collecting the first supplemental light reflected by the wavelength conversion device, efficiency of light output of the light source is improved.