Patent ID: 7147332

Claim:
An image projection device, comprising: a scrolling prism assembly comprising a rotatable prism arranged to receive light in at least two different color bands, the light in the at least two different color bands being incident at the rotatable prism along respectively different light paths; an imager panel disposed to receive light in the at least two different color bands along the respectively different light paths simultaneously from the scrolling prism assembly; and a reflective color combiner assembly disposed on the different light paths between the scrolling prism assembly and the imager panel, the color combiner assembly receiving light at an input side from the rotatable prism, light passing from an output side of the reflective color combiner assembly towards the imager panel, angular separations between the different light paths at the input side of the reflective color combiner assembly being different from angular separations between the different light paths at the output side of the reflective color combiner assembly, wherein the difference in angular separations between the different light paths is introduced via reflection.