LASER LIGHT SOURCE DEVICE AND IMAGE GENERATION DEVICE USING THE SAME

摘要

PROBLEM TO BE SOLVED: To suppress the occurrence of interference fringe caused by interference between luminous fluxes in a basic cycle for splitting light rays and in the double cycle of the basic cycle when the light rays emitted from a light source is split, superposed and uniformed. SOLUTION: The laser light source device is equipped with: the light source 1; a wavefront splitting part 21 splitting the wavefront of emitted light rays from the light source 1; a wavefront composing part 22 guiding the light from the wavefront splitting part to a body to be irradiated 11 and also superposing the split wavefront; and a polarization conversion part 5 rotating the plane of polarization of the luminous flux that is a part of the luminous flux split in the wavefront splitting part 21. The polarization conversion part 5It is provided with wavelength plates 5A1 and 5A2 different in optical axis direction. COPYRIGHT: (C)2008,JPO&INPIT