Picture display tube having an internal resistive layer

Details Picture display tube having an internal resistive layer Picture display tube having an internal resistive layer

1978-11-08

1981-02-17

Segal, Robert

Electric lamp and discharge devices

Cathode ray tube

Envelope

313450, H01J 2988, H01J 3100

Patent

active

042517494

ABSTRACT:
A picture display tube comprising an internal resistive layer to restrict the peak current which at the operating potential of the tube is associated with an electrical flash-over possibly occurring therein. The effective part of the resistive layer extends in the neck and over the transition from neck to cone of the envelope of the tube. The resistive layer represents a static resistance value of at most 10.sup.4 Ohm and a dynamic resistance value of at least 300 Ohm.

REFERENCES:
patent: 2223924 (1940-12-01), Stephan
patent: 3791546 (1974-02-01), Maley et al.
patent: 4018717 (1977-04-01), Francel et al.
patent: 4041347 (1977-08-01), Deal et al.
patent: 4052641 (1977-10-01), Dominick et al.
patent: 4092444 (1978-05-01), Kilichowski
patent: 4124540 (1978-11-01), Foreman et al.

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