REFLECTING TYPE COLOR PROJECTOR

摘要

PURPOSE: A reflecting type color projector is provided to realize an image by irradiating three colors divided from an incident light on a screen. CONSTITUTION: An incident light(L) is branched by respective wavelength area by a hetero-color mirror unit(130). The first color light(L1) reflected on a first hetero-color mirror(131) is used as an effective light. The second and third color lights(L2,L3) reflected on second and third hetero-color mirrors(133,135) after passing through the first hetero-color mirror are used as effective lights. By using the hetero-color mirror unit, optical efficiency is improved three times.