Patent ID: 6988804

Claim:
A projector comprising: a color separation optical system which separates an illumination light into a first color light, a second color light and a third color light; a first image forming panel illuminated with said first color light; a second image forming panel illuminated with said second color light; a third image forming panel illuminated with said third color light; a color synthesis optical system which synthesizes said first color light from said first image forming panel, said second color light from said second image forming panel, and said third color light from said third image forming panel; a projection optical system which projects said synthesized light from said color synthesis optical system; a first polarizing plate disposed between said color separation optical system and said first image forming panel; a second polarizing plate disposed between said color separation optical system and said second image forming panel; and a third polarizing plate disposed between said color separation optical system and said third image forming panel; wherein each of a thickness of said second polarizing plate and a thickness of said third polarizing plate is greater than a thickness of said first polarizing plate.