Projector

The invention relates to a projector comprising a plurality of light emitting diodes (LEDs), an integration rod and a rotatable wheel disc, wherein, the wheel disc comprises a plurality of sector sections and the circle center of each sector section is that of the wheel disc; the LEDs are all uniformly arranged on each sector section; the LEDs arranged on each sector section give out light of thesame color and the LEDs arranged on different sector sections give out light of different colors; the integration rod is arranged on the light extraction paths of the LEDs on a sector section of the wheel disc. By installing the LEDs on the rotatable wheel disc and installing the integration rod on the light extraction paths of the LEDs on a sector section of the wheel disc, the projector dispenses with additional light combination components; therefore, the projector is high in light source utilization ratio and is easy to be miniaturized. Meanwhile, the wheel disc rotates to accelerate the circulation speed of the a