Low pressure mercury vapor discharge lamp

Details Low pressure mercury vapor discharge lamp Low pressure mercury vapor discharge lamp

1979-01-19

1981-03-10

Demeo, Palmer C.

Electric lamp and discharge devices

With luminescent solid or liquid material

With gaseous discharge medium

313113, 313493, H01J 6135, H01J 6142

Patent

active

042556872

ABSTRACT:
Low pressure mercury vapor discharge lamp having a cylindrical discharge vessel the inner surface of which is, at least partly, coated with a luminescent layer, a reflecting layer containing titanium dioxide being provided between the said surface and the luminescent layer over a portion of the circumference between the ends of the discharge vessel. The reflecting layer contains up to 10% by weight of fine-grained silicon dioxide, thereby increasing the luminous flux emitted by the lamp.

REFERENCES:
patent: 3141990 (1964-07-01), Ray
patent: 3379917 (1968-04-01), Menelly
patent: 3541376 (1970-11-01), Sadoski et al.

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