Gas discharge lamp with different film thicknesses

Details Gas discharge lamp with different film thicknesses Gas discharge lamp with different film thicknesses

1988-03-25

1989-10-03

Levy, Stuart S.

Electric lamp and discharge devices

With luminescent solid or liquid material

With gaseous discharge medium

313488, 313607, G09G 0310, H01J 6106

Patent

active

048719412

ABSTRACT:
In a gas discharge lamp of this invention, an internal electrode is provided in a tube bulb and an external electrode is provided on the outer surface of the bulb so as to cover it. A fluorescent material film is formed inside the bulb and is excited to emit visible light by a glow discharge, which is caused by applying a voltage between these electrodes. The fluorescent material film in the bulb has different thicknesses in the tube axial direction of the bulb to average the surface luminance of the gas discharge lamp.

REFERENCES:
patent: 3716713 (1973-02-01), Levin
patent: 3717781 (1973-02-01), Sadoski et al.
patent: 4645971 (1987-02-01), Ricodeau
patent: 4645979 (1987-02-01), Chow
Toshiba Review 1985, 12-1985, vol. 40, No. 12, pp. 1079 to 1082, "Fluorescent Xenon Glow Lamp", Yoshiji Yoshiike.

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