Patent ID: 7312911

Claim:
An image projection arrangement for projecting an image, comprising: a scanner for sweeping a main laser beam along mutually orthogonal scan directions to project a pattern of scan lines each having a number of pixels; a controller operatively connected to the scanner, for causing selected pixels to be illuminated, and rendered visible, to produce the image; and an optical assembly including a pair of lasers for generating a plurality of constituent laser beams having respective output powers and mutually orthogonal polarizations, a pair of the constituent laser beams having a same wavelength, and a polarization beam combiner for combining the constituent laser beams to form the main laser beam with an output power greater than each output power of the constituent laser beams to increase brightness of the illuminated pixels by transmitting one of the constituent laser beams through the combiner along an optical path, and by reflecting the other of the constituent laser beams from the combiner along the same optical path.