Method of introducing fluorine into a lamp

Details Method of introducing fluorine into a lamp Method of introducing fluorine into a lamp

1978-02-23

1980-01-29

Lazarus, Richard B.

316 24, H01J 9395

Patent

active

041859227

ABSTRACT:
The invention relates to the manufacture of electric lamps containing fluorine in their gas fill. Fluorine can be accurately and conveniently introduced into an electric lamp envelope in the form of a fluorocarbon polymer. If a soluble fluorocarbon polymer, such as a degraded PTFE, is dissolved in a suitable solvent, for example a fluorine-substituted hydrocarbon or halocarbon solvent, the resulting solution can be metered with great accuracy into the lamp envelope and the solvent subsequently evaporated. The invention avoids the difficulties otherwise inherent in dispensing accurate quantities of an extremely reactive gaseous material.

REFERENCES:
patent: 3311777 (1967-03-01), Schroder
patent: 3712701 (1973-01-01), Johnston et al.
patent: 3898500 (1975-08-01), Johnston et al.
patent: 3902091 (1975-08-01), Mason et a.
patent: 3912961 (1975-10-01), Rees et al.
patent: 4090101 (1978-05-01), Rees et al.

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