Devices exhibiting internal polarization and apparatus for and methods of utilizing the same

Claim 1

IN COMBINATION, A LAYER OF A PHOTOCONDUCTIVE INSULATING MATERIAL EXHIBITING THE PROPERTY OF PERSISTENT INTERNAL POLARIZATION AFTER EXPOSURE TO RADIATION AND A POLARIZING VOLTAGE; AN ELECTRODE STRUCTURE ON EACH SIDE OF SAID BODY COMPRISING A LAYER OF INSULATING MATERIAL AND A PLURALITY OF STRIPS OF ELECTRICALLY CONDUCTING MATERIAL, THE CONDUCTING MATERIAL BEING ON EACH SIDE OF SAID BODY BETWEEN SAID LAYER AND A SURFACE OF SAID BODY, THE STRIPS ON EACH ELECTRODE BEING PARALLEL TO AND SPACED FROM ONE ANOTHER AND LYING IN A DIRECTION PERPENDICULAR TO THE DIRECTION OF THE STRIPS ON THE OTHER ELECTRODE, THE ELECTRODE ON ONE SIDE OF SAID BODY BEING SUBSTANTIALLY TRANSPARENT TO RADIATION TO WHICH THE PHOTOCONDUCTIVE INSULATING MATERIAL IS PHOTO RESPONSIVE; MEANS FOR POPULATING ELECTRON TRAPS IN THE PHOTOCONDUCTIVE INSULATING BODY COMPRISING A SOURCE OF RADIATION POSITIONED TO IRRADIATE THE BODY THROUGH SAID RADIATION TRANSPARENT ELECTRODE; MEANS FOR PULLING ELECTRONS OUTWARDLY FROM