Patent ID: 7104651
Filing Date: 2006-09-12
Classification: G03B,H04N

Abstract:
1. A projection system, comprising: a light source; a color scanner including a scrolling unit and a driving source for rotating the scrolling unit so that a plurality of color bars are scrolled, wherein the scrolling unit includes a plurality of spirally-arranged lens cells and converts a rotation of the plurality of spirally-arranged lens cells into a rectilinear motion of a lens array of the scrolling unit through which light passes; a light valve, which electrically scans the plurality of color bars according to an input image signal; a control circuit, which renders optical scanning of at least one of a plurality of color bars in phase with electrical scanning of the light valve by an image signal, wherein the color bars are formed on the light valve due to a rotation of the scrolling unit; and a color separator, disposed between the color scanner and the light valve, which separates light from said light source according to color.