Incandescent lamp having hardglass envelope with internal barrie

Electric lamp and discharge devices – With gas or vapor – Incandescent filament lamp

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313579, H01K 126

Patent

active

054732263

ABSTRACT:
An incandescent lamp having an envelope of hardglass. The envelope encloses a tungsten filament and contains a fill material including an inert fill gas and a halogen additive. A coating of silicon dioxide (i.e., silica) is disposed on a substantial portion of the internal surface of the envelope. The silicon dioxide coating prevents the halogen additive from combining with alkaline ions of the hardglass envelope.

REFERENCES:
patent: 2838707 (1958-06-01), Schwing et al.
patent: 3205394 (1965-09-01), Ray
patent: 3496401 (1970-02-01), Dumbaugh, Jr.
patent: 3609212 (1971-09-01), Lewis et al.
patent: 3798491 (1974-03-01), Malm
patent: 3900754 (1975-08-01), Mason et al.
patent: 3902091 (1975-08-01), Mason et al.
patent: 3982046 (1976-09-01), Mason et al.
patent: 4060423 (1977-11-01), Thomas
patent: 4105826 (1978-08-01), Thomas
patent: 4148935 (1979-04-01), Schreurs
patent: 4256988 (1981-03-01), Coaton et al.
patent: 4344016 (1982-08-01), Hoffmann et al.
patent: 4366409 (1982-12-01), Mieda et al.
patent: 4409516 (1983-10-01), Thomas et al.
patent: 4441051 (1984-04-01), Thomas
patent: 4463277 (1984-07-01), DeCaro
patent: 4508991 (1985-04-01), Wurster et al.
patent: 4663557 (1987-05-01), Martin, Jr. et al.
patent: 4689519 (1987-08-01), Ooms et al.
patent: 4737685 (1988-04-01), Thomas
patent: 4961019 (1990-10-01), White et al.
patent: 5017825 (1991-05-01), Heijnen et al.
patent: 5036244 (1991-07-01), Shaffer
patent: 5051653 (1991-09-01), DeBoer et al.
patent: 5128589 (1992-07-01), Dakin
patent: 5272408 (1993-12-01), Levin et al.
"FT-IR Diagnostics of Tungsten-Halogen Lamps: Role of Halogen Concentration, Phosphorus, Wall Material, and Burning Environment", (1991), Laurence Bigio et al. pp. 819-833.

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