Method of making alkaline earth halophosphate phosphor

Details Method of making alkaline earth halophosphate phosphor Method of making alkaline earth halophosphate phosphor

1985-10-25

1989-05-02

Cooper, Jack

Compositions

Inorganic luminescent compositions

Zinc or cadmium containing

2523014P, 2523014H, C09K 1173

Patent

active

048266221

ABSTRACT:
In the manufacture of an alkaline earth halophosphate phosphor, the phosphor ingredients are mixed, fired, wet milled and dried. By sieving the material part way through the wet milling process and by sifting the dry phosphor powder, the phosphor powder weight in fluorescent lamps can be reduced.

REFERENCES:
patent: 2976249 (1961-03-01), Rimbach et al.
patent: 3974305 (1976-08-01), Broekhoven
patent: 3982699 (1976-09-01), Jager

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