Fluorescent lamp with layer of plural phosphors having different

Details Fluorescent lamp with layer of plural phosphors having different Fluorescent lamp with layer of plural phosphors having different

1981-03-23

1984-05-08

Demeo, Palmer C.

Electric lamp and discharge devices

With luminescent solid or liquid material

With gaseous discharge medium

H01J 6144, H01J 6148

Patent

active

044477562

ABSTRACT:
A flourescent lamp, having a vacuum tight radiation transmitting envelope comprising mercury and rare gas, provided with electrodes between which the discharge takes place during operation and a luminescent layer which comprises a mixture of phosphors having different densities wherein the greater the density of the phosphor, the smaller its particle size.

REFERENCES:
patent: 2181305 (1939-11-01), Myers
patent: 3602757 (1971-08-01), Wachtel
patent: 3602758 (1971-08-01), Thornton et al.
patent: 3707642 (1972-12-01), Thornton, Jr.
patent: 4088923 (1978-05-01), Manders
patent: 4150321 (1979-04-01), Schetters et al.
patent: 4166234 (1979-08-01), Tak et al.

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