Light source optical system and projector having first and second lamps of different spectral distributions

摘要

A light source optical system capable of forming an image having good balance in brightness of red, blue, and green color light, having high overall brightness, and having good color reproducibility, on a screen is provided. The light source optical system has a first lamp, a second lamp, and a condensing optical system for synthesizing a first light emitted from the first lamp and a second light emitted from the second lamp to form irradiation light. The light source optical system is characterized in that the first light and the second light have mutually differing spectral distributions.