An electro-optic light modulator of the type including a body of an electro-optic material having opposed surfaces and a pair of planar conductive electrodes on at least one of the surfaces of the body. Polarity-reversing drive circuitry applies a voltage across the electrodes, the polarity of the voltage...http://www.google.com/patents/US5064277?utm_source=gb-gplus-sharePatent US5064277 - Operation of a light modulator of the planar electrode type
