H01J31/28 - CPC Classification

Cathode ray tubes; Electron beam tubes having a screen on or from which an image or pattern is formed, picked up, converted, or stored; Image pick-up tubes having an input of visible light and electric output with electron ray scanning the image screen

• H01J31/283 » {with a target comprising semiconductor junctions} 0
• H01J31/286 » {correlater tubes} 0
• H01J31/30 » having regulation of screen potential at anode potential, e.g. iconoscope 0
• H01J31/34 » having regulation of screen potential at cathode potential, e.g. orthicon 0
• H01J31/40 » having grid-like image screen through which the electron ray passes and by which the ray is influenced before striking the output electrode, i.e. having "triode action" 1

Recent Application in this class: