A display system (10) with reduced speckle has a light source (70) providing an illumination beam and a linear light modulator (85) having at least one linear array of light modulating devices for forming a modulated beam. The modulated beam has a plurality of orders of diffracted light. An obstructing...http://www.google.de/patents/US7119936?utm_source=gb-gplus-sharePatent US7119936 - Speckle reduction for display system with electromechanical grating
