Halogen cycle incandescent lamp

Details Halogen cycle incandescent lamp Halogen cycle incandescent lamp

1977-10-26

1979-07-31

Demeo, Palmer C.

Electric lamp and discharge devices

With support and/or spacing structure for electrode and/or...

For plural electrodes of discharge device

313222, H01K 132, H01K 150

Patent

active

041631714

ABSTRACT:
An incandescent lamp having a hard glass envelope, a tungsten filament, and an inert gas fill containing a halogen or halide additive. The hard glass envelope contains substantially no alkali or carbon monoxide and is preferably devoid of these materials. The hard glass contains less than 0.03% by weight of water and less than 0.1 .mu. liter/g carbon dioxide dissolved therein.

REFERENCES:
patent: 3270237 (1966-08-01), Danko
patent: 3496401 (1970-02-01), Dumbaugh, Jr.
patent: 3644776 (1972-02-01), DeCaro
patent: 3648094 (1972-03-01), DeCaro et al.
patent: 3681640 (1972-08-01), Martin
patent: 3712701 (1973-01-01), Johnston et al.
patent: 3728572 (1973-04-01), Maier et al.
patent: 3848152 (1974-11-01), Schultz
patent: 4005324 (1977-01-01), Dolenga et al.
"Materials and Techniques for Electron Tubes", by W. H. Kohl, (1966), Table .4, p. 26.

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