Polarized light illuminator and projection type display device

摘要: PURPOSE: To constitute a miniaturized and compact polarized light illuminator where an integrator optical system conversion are combined whose utilization efficiency is high. CONSTITUTION: This 1 provided with source part 2 emitting polarization direction random, 1st lens plate 3 constituted of plural rectangular condenser lenses outside shape condensing the emitted from so that secondary images may be formed, 2nd 4 placed near position formed equipped array, separation prism array 420, λ/2 phase difference 430, side 440. In stage minute image by constituting system, separated. Therefore, since spatial spread path associated restrained, though it system.