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

1990-10-17

1992-07-21

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

051325900

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 on the combination of the pulse shapes and duty factors constituting 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), Jenkins
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

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