Flat circular foil-filament lamp

Details Flat circular foil-filament lamp Flat circular foil-filament lamp

1984-12-18

1986-04-29

Moore, David K.

Electric lamp and discharge devices

Electrode and shield structures

Filament or resistance heated electrodes

313343, H01J 115

Patent

active

045859710

ABSTRACT:
An incandescent electric lamp with a flat circular foil filament which emits a circular beam of maximum intensity in the direction perpendicular to the filament. The filament is mounted inside a ring conductor and has a reflective rear plate which returns heat to the filament as means of increasing the incandescence.Current flows from a center post conductor through the filament to a ring conductor.

REFERENCES:
patent: 671725 (1901-04-01), Goddard
patent: 1305295 (1919-06-01), McKay
patent: 2007939 (1935-07-01), Braselton
patent: 2319338 (1943-05-01), Mulder
patent: 3788721 (1974-01-01), Vause
patent: 4144473 (1979-03-01), Almer

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