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Publication of NL6708042ApublicationCriticalpatent/NL6708042A/xx
H01J31/08—Cathode ray tubes; Electron beam tubes having a screen on or from which an image or pattern is formed, picked up, converted, or stored
H01J31/26—Image pick-up tubes having an input of visible light and electric output
H01J31/28—Image pick-up tubes having an input of visible light and electric output with electron ray scanning the image screen
H01J31/34—Image pick-up tubes having an input of visible light and electric output with electron ray scanning the image screen having regulation of screen potential at cathode potential, e.g. orthicon
H01J31/38—Tubes with photoconductive screen, e.g. vidicon