Patent ID: 6644815
Filing Date: 2003-11-11
Classification: G02B,H04N

Abstract:
A projector with a total reflection prism comprising:a light source for emitting beams of lights; a color wheel for receiving the beams from the light source, splitting color beams from the beams in succession, and transmitting the color beams wherein the color wheel comprises a color drum having a plurality of color filters integrated thereto each for transmission of beams of different color wavelengths; a transmission part for receiving the color beams transmitted by the color wheel and guiding the color beams to the prism wherein the transmission part includes: a rod lens for making distribution of the color beams uniform, at least one first lens for focusing the color beams from the rod lens onto a mirror, a mirror for deflecting a path of the color beams from the lens, and at least one second lens for focusing the color beams from the mirror onto the prism; a display for producing a picture beam according to a video signal by using the color beams from the transmission part; a prism arranged between the transmission part and the display for guiding the color beams from the transmission part to the display, and reflecting the picture beam from the display; and a projection lens for enlarging, and projecting the picture beam.