Patent ID: 7697188
Filing Date: 2010-04-13
Classification: G02B,H04N

Abstract:
1. A projection display system, comprising: a plurality of laser light sources emitting a plurality of light beams; an optical element for expanding said plurality of light beams to project said beams with cross sections having different sizes or shapes for overlapping and covering an approximately entire surface of a deflection mirror device and having a plurality of mirror elements for reflecting and modulating said plurality of laser light beams irradiating on each of said mirror elements with different incident angles to said deflection mirror device wherein said optical element for expanding said light beams further includes a plurality of areas corresponding to each of said laser light sources to control and adjust an emission characteristic of said light beams projected to the deflection mirror device; a projection optical system for projecting light beams reflected from the plurality of mirror elements of the deflection mirror device; and a processor for controlling each of said mirror elements to deflect within a range of angles between an ON-angle and an OFF-angle with at least a part of the light beams reflected by each of said mirror elements between said ON-angle and OFF-angle projecting into an aperture of the projection optical system.