LIGHT SOURCE UNIT AND A PROJECTOR WITH THE SAME FOR PREVENTING FLICKERING

摘要

PURPOSE: A light source unit and a projector with the same are provided to prevent nonuniform deterioration of a fluorescent layer in the light source unit and thereby prevent flickering on the screen of the projector. CONSTITUTION: A light source unit comprises a fluorescent wheel(101) and a light source controller. The fluorescent wheel is provided with fluorescent layers which emits fluorescent lights of fixed wavelength band using the lights from an excitation light irradiator. The light source controller controls the light emission of the excitation light irradiator and the rotation speed of the fluorescent wheel to be a constant during the period in which the excitation light irradiator is turned on.