a light source for emitting light beams each having a predetermined wavelength; and

reflective means for reflecting the light beams emitted from the light source and for creating a display by scanning the light beams across a display surface;

wherein the reflective means has at least one reflective surface for reflecting the light beams, each said reflective surface being:

substantially smaller in area than the area of the created display, and

formed such that distances from respective reflective points on the reflective surface to a corresponding scanning point on the display surface are substantially equal to each other, in order to correct image distortion;

wherein the reflective means comprises:

a polygonal mirror having a plurality of reflective surfaces; and

a drive system for driving the polygonal mirror,

the polygonal mirror reflecting the light beams across the display surface while rotating at a predetermined speed; and

wherein the reflective surface is a curved surface having a predetermined curvature.