Dual filament fluorescent lamp with electron shielding means

Details Dual filament fluorescent lamp with electron shielding means Dual filament fluorescent lamp with electron shielding means

1982-09-07

1984-06-12

Demeo, Palmer C.

Electric lamp and discharge devices

With luminescent solid or liquid material

With gaseous discharge medium

313613, H01J 6110, H01J 6142

Patent

active

044544472

ABSTRACT:
An energy saving fluorescent lamp includes an elongated envelope having an interior coating with phosphor and an ionizable fill material, hermetically sealed end walls, an operating electrode affixed inwardly of each end wall and a starting electrode spaced at a lesser distance from each end wall with an electron shielding means adjacent a portion of the starting electrode and intermediate thereto and the operating electrode whereby a reduction in long wattage use is effected.

REFERENCES:
patent: 2769112 (1956-10-01), Heine et al.
patent: 3215881 (1965-11-01), Waymouth
patent: 3328622 (1967-06-01), Toomey
patent: 3504218 (1970-03-01), Emidy et al.

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