Gaseous discharge light emitting element

Details Gaseous discharge light emitting element Gaseous discharge light emitting element

1976-10-29

1978-04-18

Demeo, Palmer C.

Electric lamp and discharge devices

With luminescent solid or liquid material

With gaseous discharge medium

2523014R, H01J 6144

Patent

active

040853500

ABSTRACT:
In an air-tight container made of transparent material, a phosphor, a gas or gas mixture and a pair of discharging electrodes are contained. The discharge gap is in the range of 0.1 to 3.0mm, and the pressure of the gas or gas mixture sealed in the container is such that the product of the pressure and the discharge gap is in the range of 30 to 300 Torr.mm. The gas or gas mixture has discharge radiation spectra within the region of wavelength shorter than 200nm. The phosphor is a europium activated yttrium gadolinium borate phosphor represented by the formula

REFERENCES:
patent: 3250722 (1966-05-01), Borchardt
patent: 3417027 (1968-12-01), Wanmaker et al.
patent: 3458450 (1969-07-01), Kobayashi et al.
patent: 4000436 (1976-12-01), Toryu et al.

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