Color fluorescent luminous tube

Details Color fluorescent luminous tube Color fluorescent luminous tube

1985-05-28

1986-08-26

Levy, Stewart J.

Electric lamp and discharge devices

Cathode ray tube

Envelope

313495, 313553, H01J 2994

Patent

active

046085181

ABSTRACT:
A color fluorescent luminous tube is disclosed which is capable of eliminating a problem of cathode poisoning to significantly lengthen the life of the tube. The color fluorescent luminous tube includes getter devices provided to diffuse a part of a getter material toward luminous cells to deposit it as a film on regions adjacent to the luminous cells, so that the film catches impurity gas generated from the luminous cells due to the impingement of electrons thereupon before it reaches a cathode.

REFERENCES:
patent: 2843777 (1958-07-01), Szegho
patent: 3935499 (1976-01-01), Oess
patent: 4220893 (1980-09-01), Miller et al.
patent: 4431939 (1984-02-01), Hernqvist

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