Method of flashing tungsten filament

Details Method of flashing tungsten filament Method of flashing tungsten filament

1975-12-31

1977-03-15

Chatmon, Jr., Saxfield

Electric lamp and discharge devices

Electrode and shield structures

Filament or resistance heated electrodes

313341, H01J 116, H01K 114, H01J 1910

Patent

active

040126595

ABSTRACT:
The tungsten wire filament of an incandescent lamp is flashed to a recrystallized structure by applying pulses of electrical energy thereto.

REFERENCES:
patent: 2225239 (1940-12-01), Spaeth
patent: 2276048 (1942-03-01), Laise
patent: 2306925 (1942-12-01), Aicher
patent: 2371205 (1945-03-01), Zabel
patent: 3210589 (1965-10-01), Mason

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