Electron emission control tube

Claim 1

IN AN IMAGE CONTROL CATHODE RAY TUBE INCLUDING AN EVACUATED ENVELOPE HAVING AN ELONGATED CYLINDRICAL SHANK CLOSED AT ONE END AND AN ENLARGED PORTION AT ITS OTHER END TERMINATING IN AN END WALL SUBSTANTIALLY AT RIGHT ANGLES TO THE SHANK AXIS, AN ELECTRON GUN ASSEMBLY WITHIN THE CLOSED END OF SAID SHANK CONSISTING OF AN ELECTRON EMITTING ELEMENT, BEAM FORMING AND FOCUSING ELEMENTS WHICH CONFINE SAID BEAM TO CIRCULAR CROSS SECTION, A BEAM CURRENT CONTROL GRID, AND AN ACCELERATING ANODE; THE IMPROVEMENT CONSISTING OF AN INSULATING PLATE, A SERIES OF COPLANAR CLOSELY SPACED ELONGATED CONDUCTORS AFFIXED IN INSULATED POSITION TO SAID PLATE AND ARRANGED IN A ROW LYING IN A PLANE SUBSTANTIALLY AT RIGHT ANGLES TO SAID AXIS, THE RESPECTIVE ENDS OF SAID CONDUCTORS TERMINATING AT THE RESPECTIVE OUTER EDGES OF SAID PLATE, PORTIONS OF EACH CONDUCTOR BEING EXPOSED TO THE INTERIOR OF THE TUBE SO THAT ELECTRONS IMPRESSED THEREON BY THE ELECTRON BEAM FROM SAID GUN ASSEMBLY ESCAPE THE EXTERIOR ENDS OF SAID CONDUCTORS TO PASS THROUGH SPACE TOWARDS AN EXTERNAL ACCELERATING ELECTRODE, SAID BEAM BEING MODULATED BY SAID GUN ASSEMBLY IN RESPONSE TO AN EXTERIOR SIGNAL TRANSMITTED THERETO, AND A DEFLECTION SYSTEM INTERMEDIATE THE ENDS OF SAID TUBE EXTERIORLY ENERGIZED TO PRODUCE A CONTINUOUSLY CHANGING FIELD, SAID BEAM DEFLECTABLE FOR TRANSVERSELY SCANNING SAID ROW OF CONDUCTORS THROUGHOUT ITS LENGTH TO PROVIDE TRANSMISSION OF ELECTRONS TO THE EXTERIOR OF THE TUBE, A RECTIFYING COATING ON SAID CONDUCTORS, AND AN EXTERNAL VOLTAGE UNIDIRECTIONALLY CONNECTED THERETHROUGH TO THE SAID EMISSION CONDUCTORS, WITH SAID CONDUCTORS RETAINED IN INSULATED RELATION FROM EACH OTHER.

Claim 3

A METHOD OF FORMING ELECTROSTATIC IMAGES COMPRISING MOVABLY POSITIONING A RECEIVING SURFACE WITH A CATHODE RAY ELECTRON EMISSION CONTROL TUBE SPACED FROM ONE SIDE THEREOF, ARRANGING AN ELECTRON ACCELERATING ELECTRODE UPON THE OTHER SIDE OF THE RECEIVING SURFACE, RETAINING THE SPACE BETWEEN THE ELECTRON EMISSION CONDUCTORS OF SAID TUBE AND SAID ELECTRODE AT A BIAS VOLTAGE POTENTIAL JUST BELOW THE IONIZATION POTENTIAL OF SAID SPACE, MAINTAINING A BIAS VOLTAGE BY A SECOND EMISSION SOURCE TERMINATING AT SAID EMISSION CONDUCTORS AT ONE END OF THE CIRCUIT AND SAID ELECTRODE AT THE OTHER END OF THE CIRCUIT, AND ARRANGED SO THAT ALL EMISSION CONDUCTORS ARE RETAINED IN INSULATED RELATION TO EACH OTHER, AND ADDITIONALLY MODULATING A CATHODE RAY BEAM ELECTRON EMISSION SOURCE BY A CONTROL SIGNAL, SELECTIVELY DEFLECTING SAID CATHODE RAY BEAM TO INDIVIDUAL CONDUCTORS, SAID MODULATED CATHODE RAY BEAM VOLTAGE BEING IN ADDITION TO THE SAID BIAS VOLTAGE APPLIED TO THE CONDUCTORS, SELECTIVELY DEFLECTING SAID ADDITIONAL CATHODE RAY BEAM ELECTRONS TO INDIVIDUAL CONDUCTORS THEREBY DETERMINING WHICH EMISSION CONDUCTOR PERMITS ELECTRONS TO ESCAPE ITS EMISSION END IN THE DIRECTION OF SAID ELECTRODE, CONTROLLING THE QUANTITY OF ELECTRONS BEING EMITTED BY A MODULATING SIGNAL, SAID EMITTED ELECTRONS IMPOSING AN ELECTROSTATIC CHARGE ON THE RECEIVING SURFACE OPPOSITE THEREFROM, WITH THE MOVEMENT OF THE RECEIVING SURFACE AND THE DEFLECTION AND MODULATION OF THE SELECTIVELY DEFLECTED AND MODULATED ELECTRON BEAM ALL SYNCHRONIZED TO FORM ELECTROSTATIC CHARGES ON THE MOVABLE SURFACE IN A PREDETERMINED PATTERN.

Claim 4

A METHOD OF FORMING ELECTROSTATIC IMAGES COMPRISING MOVABLY POSITIONING A RECEIVING SURFACE WITH A CATHODE RAY ELECTRON EMISSION CONTROL TUBE SPACED FROM ONE SIDE THEREOF, ARRANGING AN ELECTRON ACCELERATING ELECTRODE UPON THE OTHER SIDE OF THE RECEIVING SURFACE, RETAINING THE SPACE BETWEEN THE ELECTRON EMISSION CONDUCTORS OF SAID TUBE AND SAID ELECTRODE AT A BIAS VOLTAGE POTENTIAL JUST BELOW THE IONIZATION POTENTIAL OF SAID SPACE, MAINTAINING A BIAS VOLTAGE BY A SECOND EMISSION SOURCE TERMINATING AT SAID EMISSION CONDUCTORS AT ONE END OF THE CIRCUIT AND SAID ELECTRODE AT THE OTHER END OF THE CIRCUIT, AND ARRANGED SO THAT ALL EMISSION CONDUCTORS ARE RETAINED IN INSULATED RELATION TO EACH OTHER, AND ADDITIONALLY MODULATING A CATHODE RAY BEAM ELECTRON EMISSION SOURCE BY A CONTROL SIGNAL, SELECTIVELY DEFLECTING SAID CATHODE RAY BEAM TO INDIVIDUAL CONDUCTORS, SAID MODULATED CATHODE RAY BEAM VOLTAGE BEING IN ADDITION TO THE SAID BIAS VOLTAGE APPLIED TO THE CONDUCTORS, SELECTIVELY DEFLECTING SAID ADDITIONAL CATHODE RAY BEAM ELECTRONS TO INDIVIDUAL CONDUCTORS THEREBY DETERMINING WHICH EMISSION CONDUCTOR PERMITS ELECTRONS TO ESCAPE ITS EMISSION END IN THE DIRECTION OF SAID ELECTRODE, CONTROLLING THE QUANTITY OF ELECTRONS BEING EMITTED BY A MODULATING SIGNAL, SAID EMITTED ELECTRONS IMPOSING AN ELECTROSTATIC CHARGE ON THE RECEIVING SURFACE OPPOSITE THEREFROM, WITH THE MOVEMENT OF THE RECEIVING SURFACE AND THE DEFLECTION AND MODULATION OF THE SELECTIVELY DEFLECTED AND MODULATED ELECTRON BEAM ALL SYNCHRONIZED TO FORM ELECTROSTATIC CHARGES ON THE MOVABLE SURFACE IN A PREDETERMINED PATTERN.