Tube having target with store and/or non-store sections

Claim 1

A DIRECT VIEWING STORAGE TARGET FOR USE IN A CATHODE RAY STORAGE TUBE, COMPRISING: A SUPPORT MEMBER OF INSULATIVE MATERIAL; A FIRST ELECTRICALLY CONDUCTIVE AREA ON ONE PORTION OF THE SURFACE OF ONE SIDE OF SAID SUPPORT MEMBER; A SECOND ELECTRICALLY CONDUCTIVE AREA ON ANOTHER PORTION OF SAID SURFACE OF SAID SUPPORT MEMBER AND INSULAINGLY SPACED FROM SAID FIRST AREA; AND A STORAGE DIELECTRIC LAYER OF PHOSPHOR MATERIAL SUPPORTED ON SAID ONE SIDE OF SAID SUPPORT MEMBER OVER SAID FIRST AREA AND SAID SECOND AREA, SIAD DIELECTRIC LAYER BEING AN INTEGRAL LAYER OF SUFFICIENTLY POROUS STRUCTURE TO ENABLE SECONDARLY ELECTRONS EMITTED FROM ONE SIDE OF THE LAYER TO BE TRANSMITTED THROUGH SAID LAYER AND COLLECTED BY SAID CONDUCTOR AREAS ON THE OPPOSITE SIDE THEREOF SO THAT SAID PHOSPHOR MATERIAL CAN STORE AN ELECTRICAL CHARGE IMAGE FOR AN UNLIMITED TIME OVER A STABLE RANGE OF TARGET VOLTAGES APPLIED TO SAID FIRST AND SECOND CONDUCTIVE AREAS, AND WILL EMIT A LIGHT IMAGE CORRESPONDING TO SAID CHARGE IMAGE, WHEN BOMBARDED BY ELECTRONS.