Tungsten halogen lamp having a fine-wire filament and a hydrogen

Details Tungsten halogen lamp having a fine-wire filament and a hydrogen Tungsten halogen lamp having a fine-wire filament and a hydrogen

1983-05-02

1985-10-29

Moore, D. K.

Electric lamp and discharge devices

With gas or vapor

Incandescent filament lamp

313557, H01K 108

Patent

active

045502706

ABSTRACT:
This invention provides a tungsten-halogen lamp having a thin-wire filament and a hydrogen-impervious envelope. Containment of hydrogen within the lamp envelope suppresses tungsten corrosion of the filament and prevents early termination of the lamp. In the preferred embodiment, an aluminosilicate glass is employed as the hydrogen-impervious envelope material. This invention overcomes a substantial impediment in the development of a feasible tungsten-halogen lamp as a replacement for the standard Edison-type lamp for general lighting purposes.

REFERENCES:
patent: 3418512 (1968-12-01), Jampens et al.
patent: 4451760 (1984-05-01), Griffin et al.

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