Fluorescent lamp containing aluminate phosphor

Details Fluorescent lamp containing aluminate phosphor Fluorescent lamp containing aluminate phosphor

1986-04-21

1987-01-20

Cooper, Jack

Electric lamp and discharge devices

With luminescent solid or liquid material

With gaseous discharge medium

313486, H01J 6144

Patent

active

046382143

ABSTRACT:
A class of non-stoichiometric class of cerium and terbium co-activated magnesium aluminate phosphors is disclosed which are particularly useful in low pressure type fluorescent lamps. Said phosphor materials can be further combined with other phosphors to produce white color illumination in said type lamps. A general method for preparation of said phosphor materials is disclosed wherein the emission characteristics can be regulated to advantage.

REFERENCES:
patent: 3937998 (1976-02-01), Verstegen et al.
patent: 4096088 (1978-06-01), Ranby et al.
patent: 4150321 (1979-04-01), Schetters et al.
patent: 4305019 (1981-12-01), Graff et al.
patent: 4335330 (1982-06-01), Peters et al.
patent: 4447756 (1984-05-01), Kohmoto et al.

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