Disclosed is a light shutter device comprising a plurality of optical element for modulating light passing therethrough. Each optical element is made of PLZT and the surface of a light modulating region of each optical element is coated with a thin film. The surface electrical resistance on the thin...http://www.google.com.au/patents/US6124965?utm_source=gb-gplus-sharePatent US6124965 - Optical element and light shutter device using the same
