Optically addressed liquid crystal light valve and optical logic device using the same

摘要

An optically addressed liquid crystal light valve includes a first substrate on which a plurality of liquid crystal driving circuits are formed, a second substrate provided with a transparent electrode, and a ferroelectric liquid crystal sandwiched between the two substrates. Each liquid crystal driving circuit includes a plurality of photodetectors and a logic circuit. An optical logic device includes an optically addressed liquid crystal light valve explained above and a plurality of masks for selectively transmit a plurality of lights. The masks may be replaced by a wavelength selecting filter including a plurality of regions each transmit a light having a specific wavelength to a corresponding photodetector of the light valve.