High-contrast display system with scanned conformal grating device

摘要

An improved projection system that includes a conformal grating electromechanical system (GEMS) device (85) for forming an image on a medium, and also including: a light source (70) providing illumination; a linear array of conformal GEMS devices (85) receiving the illumination; an obstructing element (82) for blocking a zeroth order reflected light beam from reaching the medium; a cross-order filter (110) placed substantially near a Fourier plane of a lens system (75) for blocking a plurality of diffracted cross-order light beams from reaching the medium; a scanning element (77) for moving non-obstructed diffracted light beams relative to the medium; and a controller (80) for providing a data stream to the linear array of conformal GEMS devices. <IMAGE>