Patent ID: 6765705
Filing Date: 2004-07-20
Classification: G02B,H04N

Abstract:
An optical unit comprising:a light source; an image display element to form an optical image according to an image signal output from the light emitted from said light source; an optical element through which the light from said light source is passed with reflection therein; a color separator for separating the light emitted from said light source into a first light color, a second light color and a third light color; a rotating multisurface element irradiated with the light from said color separator for controlling the respective reflected direction of the optical axes of said first light color, said second light color and said third light color so as to irradiate the respective said first light color, said second light color and said third color onto different locations on said display element while scrolling said different locations irradiated by said first light color, said second light color and said third color in the same said direction; and a projection device for projecting light emitted from said image display element as a color image; wherein said optical element is composed such that the area of the light emitting surface of said optical element is larger than that of the light incidence surface of said optical element.