Patent ID: 6409348
Filing Date: 2002-06-25
Classification: H04N

Abstract:
A projector that projects and displays an image, comprising:a light source; a wavelength separating optical system that separates light emitted from said light source into a plurality of wavelength regions; plural light modulation devices provided respectively for light in the plural wavelength regions emitted from said wavelength separating optical system that modulate the light in the plural wavelength regions according to a given image signal; a light synthesizing optical system that synthesizes the light in the plural wavelength regions modulated by said plural light modulation devices; a projection optical system that projects the synthesized light emitted from said light synthesizing optical system; and a reflecting mirror, having a reflectance of approximately 90% or more for light in the wavelength region of approximately 435 nm or more, and a reflectance for light in the wavelength region of at least 425 nmÂ±5 nm, that is lower than the reflectance for the light in the wavelength region of approximately 435 nm or more, placed in an optical path from said light source to at least one of said light modulation devices.