Image pick-up tubes having an input of visible light and electric output (tubes without defined electron beams and having a light ray scanning photo-emissive screen H01J40/20)

Full Title

Cathode ray tubes; Electron beam tubes (H01J25/00, H01J33/00, H01J35/00, H01J37/00 take precedence; details of cathode ray tubes or of electron beam tubes H01J29/00) > 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 (tubes without defined electron beams and having a light ray scanning photo-emissive screen H01J40/20)

Child Classifications

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• H01J 31/265
• H01J 31/28 with electron ray scanning the image screen
• H01J 31/42 with image screen generating a composite electron beam which is deflected as a whole past a stationary probe to simulate a scanning effect, e.g. Farnsworth pick-up tube
• H01J 31/46 Tubes in which electrical output represents both intensity and colour of image
• H01J 31/48 Tubes with amplification of output effected by electron multiplier arrangements within the vacuum space