Optically addressable spatial light modulator

摘要: A liquid crystal spatial light modulator is disclosed having a pair of spaced transparent plates on which two electrically conductive films are coated in confronting relation. continuous or discontinuous photosensitive film one the films. bistable ferroelectric confined between other and film. An activating voltage source applied to Modulator pixels defined by plurality small elements that carried These may be either reading wavefront, they reflective wavefront. apertured also mounted substantially coplanar with elements. The apertures this coincide positions therefrom, thereby leave ring-shaped area exposed surrounding each reflector element. opaque rings said film, so as overlie surrounds Individual addressed portion associated pixel's individual Photodiode photoconductive pixel cells disclosed.