Patent ID: 6379010
Filing Date: 2002-04-30
Classification: G03B

Abstract:
A projection type display comprising:a color separating optical system for separating an emitted light from a light source into respective lights of color components of red, green and blue, having a first dichroic mirror functioning as a low-pass filter to pass the red light and a second dichroic mirror functioning as a high-pass filter to pass the blue light; three light valves having at least a polarizing plate on each light exiting side thereof, modulating the light of each color component of red, green, and blue; and a color synthesizing optical system for synthesizing each exiting light from each light valve, having a first dichroic prism functioning as a low-pass filter to pass the red light and a second dichroic prism functioning as a low-pass filter to pass the red light and the green light.