Gas discharge tube capable of lighting in different colors

Details Gas discharge tube capable of lighting in different colors Gas discharge tube capable of lighting in different colors

1992-04-10

1995-04-25

Yusko, Donald J.

Electric lamp and discharge devices

With luminescent solid or liquid material

With gaseous discharge medium

313486, 313487, 313642, H01J 162

Patent

active

054102162

ABSTRACT:
A gas discharge tube that is capable of lighting in different colors. The gas discharge tube, which may contain neon and mercury vapor, and which has its inner surface coated with a photoluminescent layer, is energized with a pulse current. The resultant color of the light emitted from the gas discharge tube depends in part on the frequency of the pulse current.

REFERENCES:
patent: 1792347 (1931-02-01), Zecher
patent: 2030402 (1936-02-01), Ruttenauer
patent: 2170066 (1939-08-01), Ruben
patent: 2207174 (1940-07-01), Jemkins
patent: 2316366 (1943-04-01), Ruttenauer et al.
patent: 2419902 (1947-04-01), Mager
patent: 3255373 (1966-06-01), Van Broekhoven et al.
patent: 3351796 (1967-11-01), Apple et al.
patent: 3416019 (1968-12-01), Kaduk
patent: 4996465 (1991-02-01), Uetsuki
Radio Shack, Dictionary of Electronics Rudolf F. Graf, 1972, p. 174.

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