Patent ID: 7441902

Claim:
An arrangement for projecting an image, comprising: a) a plurality of image projection modules, each having a laser for emitting a laser beam and a scanner for sweeping a pattern of scan lines in space at a distance from the modules, each scan line having a number of pixels of fixed size, each pattern being partly overlapped at an overlap region, each scanner including a first oscillatable scan mirror for sweeping the respective laser beam along a first direction at a first variable scan rate and over a first scan angle, and a second oscillatable scan mirror for sweeping the respective laser beam along a second direction substantially perpendicular to the first 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 b) a controller operatively connected to each laser and each scanner, for causing selected pixels to be illuminated, and rendered visible, by each laser beam to produce the image from each pattern, the selected pixels in the overlap region being illuminated at a lesser intensity than selected pixels not in the overlap region, the controller being operative for independently energizing each laser at a different time during a predetermined frame interval at respective selected pixels, and for clocking the pixels along the first direction at a variable clock rate corresponding to the first variable scan rate to avoid image distortion.