LIGHT SOURCE DEVICE, PROJECTING DISPLAY DEVICE, AND METHOD FOR RADIATING ILLUMINATION LIGHT TO DISPLAY ELEMENT

摘要

This light source device (10) has: a laser light source unit (20); and a first light output unit (30) that emits first light by means of being irradiated by the exiting light from the laser light source unit (20). The laser light source unit (20) is configured in a manner so as to emit light containing two mutually perpendicular polarized light components at a predetermined fraction.