Patent ID: 6655597
Filing Date: 2003-12-02
Classification: G06K

Abstract:
An arrangement for displaying a bit-mapped two-dimensional color image for viewing by a human eye on a target, comprising:a) a plurality of energizable lasers of different wavelengths for projecting respective laser beams toward the target when energized; b) a scanner for sweeping the laser beams along a plurality of light paths over the target; and c) a controller operatively connected to, and operative for energizing and deenergizing, the lasers while the laser beams are swept along the light paths, the controller being operative for energizing the lasers at selected positions of the laser beams in at least one of the light paths to illuminate individual light pixels overlapping at the selected positions, and at a refresh rate at which the overlapping pixels persist to enable the eye to steadily view the bit-mapped two-dimensional color image, the controller being operative for deenergizing the lasers at other selected positions of the laser beams in at least one of the light paths to non-illuminate individual light pixels overlapping at the other selected positions, the image being comprised of a light pattern of the overlapping illuminated and non-illuminated pixels on the target.