An optical head assembly, method, and procedure which generates and then precisely
positions multiple light beams onto a target. The system diffracts an input light
source into a multiple light beam pattern, or initially generates a multiple light
beam pattern, in which individual beams of the multiple light beam pattern are
precisely spaced, corrected, focused and directed through a two axis plane to the
target with minimal movement of any components of the optical head assembly. Such
individual beams can also be individually modulated.