Color tube having channel electron multiplier and screen pattern

Details Color tube having channel electron multiplier and screen pattern Color tube having channel electron multiplier and screen pattern

1974-04-17

1977-05-10

Segal, Robert

Electric lamp and discharge devices

Cathode ray tube

Secondary emissive electrode

313105CM, 313 95, 313470, H01J 3148, H01J 3120, H01J 3918

Patent

active

040230635

ABSTRACT:
Electron beam apparatus comprising a channel plate which emits electrons in the form of hollow electron beams, a focusing control electrode for controlling the diameter of the hollow beams and a target having a pattern of concentric areas aligned with each hollow beam, said pattern having at least two different areas which respond differently to electron bombardment and may be selectively bombarded under control of said electrode.

REFERENCES:
patent: 2619608 (1952-11-01), Rajchman
patent: 2842697 (1958-07-01), Bingley
patent: 2962623 (1960-11-01), Beintema
patent: 3260876 (1966-07-01), Manley et al.
patent: 3609433 (1971-09-01), Freedman
patent: 3634712 (1972-01-01), Orthuber
patent: 3675028 (1972-07-01), Grant
patent: 3860849 (1975-01-01), Schagen et al.

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