Patent ID: 7859567

Claim:
An arrangement for projecting an image, comprising: a laser assembly for emitting a plurality of laser beams; an optical assembly for focusing and nearly collinearly arranging the laser beams to form a composite beam; a scanner for sweeping the composite beam as a pattern of spaced-apart scan lines, each scan line extending along a scan axis and having a number of pixels, the scanner including a first oscillatable scan mirror for sweeping the composite beam along a first sweep direction at a first scan rate and over a first scan angle, and a second oscillatable scan minor for sweeping the composite beam along a second sweep direction substantially perpendicular to the first sweep direction, and at a second scan rate different from the first scan rate, and at a second scan angle different from the first scan angle; and a controller operatively connected to the laser assembly and the scanner, for causing selected pixels to be illuminated, and rendered visible, by the composite beam to produce the image from a series of individual successive frames integrated for viewing by a human eye, the controller being operative, in at least one of the frames, for causing the scanner to sweep the scan lines in respective first scan directions along the scan axis and, in at least another of the frames, for causing the scanner to sweep the scan lines in respective second scan directions along the scan axis but opposite to the respective first scan directions swept in said at least one frame.