Patent ID: 6910776

Claim:
An image projecting apparatus comprising: a light source to emit a plurality of monochromatic lights of different wavelengths; a light transmission unit comprising a first plurality of optical fibers that said plurality of monochromatic lights respectively pass through; an optical switch unit comprising a plurality of reflecting mirrors having a matrix structure to selectively reflect said plurality of monochromatic lights, said plurality of reflecting mirrors having the matrix structure comprising a first group placed at an odd row and a second group placed an even row; at least one square-beam generation unit to convert the reflected said plurality of monochromatic lights to respective square beam; a panel to form a plurality of monochromatic strips of a predetermined size based on an input of said square beam-converted plurality of monochromatic lights; and a projecting lens unit installed facing the panel, wherein the first group and the second group of the optical switch unit reflect said plurality of monochromatic lights in an alternate order.