Mercury-free discharge lamp

Details Mercury-free discharge lamp Mercury-free discharge lamp

1984-09-04

1987-01-13

Chatmon, Saxfield

Electric lamp and discharge devices: systems

Pulsating or a.c. supply

Induction-type discharge device load

313637, 313638, 313643, H05B 4116, H05B 4124

Patent

active

046366920

ABSTRACT:
An ultraviolet light source includes a volume filled with a dose of AlBr.sub.3 and an inert gas. No mercury is used. During electrical discharge excited states of AlBr.sub.2, and AlBr emit light, with AlBr having a broad ultraviolet emission peaking at about 278 nm. The source may be energized with or without internal electrodes. Phosphors may be employed to convert the ultraviolet to visible light. The lamp's envelope may be aluminosilicate coated quartz.

REFERENCES:
patent: 2765416 (1956-10-01), Beese et al.
patent: 3586898 (1971-06-01), Speros et al.
patent: 4002922 (1977-01-01), Young
patent: 4206387 (1980-06-01), Kramer et al.
patent: 4436762 (1984-03-01), Lapatovich et al.
patent: 4480213 (1984-10-01), Lapatovich et al.
patent: 4492898 (1985-01-01), Lapatovich et al.
patent: 4532455 (1985-07-01), Connor et al.
patent: 4549109 (1985-10-01), Nighan et al.

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