Photoelectrophoretic facsimile transmission system

Abstract

Abstract A METHOD OF PHOTOELECTROPHORETIC IMAGING IS PROVIDED COMPRISING: (I) APPLYING A LAYER OF AN IMAGING SUSPENSION BETWEEN A PAIR OF ELECTRODES, AT LEAST ONE OF WHICH IS PARTIALLY TRANSPARENT, SAID IMAGING SUSPENSION COMPRISING A PLURALITY OF FINELY DIVIDED ELECTRICALLY PHOTOSENSITIVE PARTICLES IN A CARRIER LIQUID; (II) SUBJECTING SAID SUSPENSION TO AN APPLIED ELECTRIC FIELD BETWEEN SAID ELECTRODES HAVING A FIELD STRENGTH OF FROM ABOUT 0.1 TO 1.0 VOLT/MICRON, WHEREBY ELECTROPHORETIC DEPOSITION OF SAID PARTICLES ONTO THE TRANSPARENT ELECTRODE OCCURS; (III) PARAXIALLY SCANNING SAID TRANSPARENT ELECTRODE WITH A SOURCE OF UNIFORM ELECTROMAGNETIC RADIATION; (IV) APPLYING AN INPUT ELECTRICAL SIGNAL TO THE OTHER ELECTRODE COMPRISING A MODULATED VOLTAGE HAVING A FIELD STRENGTH IN EXCESS OF ABOUT 10 VOLTS/MICRON, WHEREBY UPON COINCIDENCE OF SAID SCANNING UNIFORM LIGHT SOURCE AND SAID MODULATED VOLTAGE, PHOTOELECTROPHORETIC CHARGE EXCHANGE AND REVERSE PARTICLE MIGRATION OCCURS TO SAID OTHER ELECTRODE RESULTING IN IMAGE FORMATION.

Inventors

• 👤 Robert W Gundlach

Bibliographic Details