Patent ID: 6817719
Filing Date: 2004-11-16
Classification: G02B,H04N

Abstract:
Apparatus for projecting a multi-colored picture on a projection screen, having a light source that emits multi-colored light, a color unit, a first and a second light modulator arranged following the color unit, and a projection optics, wherein the color unit can be illuminated with the light from the light source and from that separates light of a first color and directs it on the first light modulator, and separates light of a second color and directs it on the second light modulator, wherein the light modulators modulate the lights shining on them, in order to generate one color frame each of the multi-colored picture, and wherein the modulated light is superimposed to form a common luminous beam, by means of the color unit, with which the projection optics is illuminated, the apparatus comprising an optics system illuminated with the common luminous beam and having a curved mirror provided between the color unit and the projection optics, wherein the optics system generates a multi-colored intermediate image in an intermediate image level arranged in front of the projection optics, and wherein the multi-colored intermediate image is projected by the projection optics on the projection screen as the multicolored picture.