Certain alkali metal-rare earth metaphosphate photoluminescent g

Details Certain alkali metal-rare earth metaphosphate photoluminescent g Certain alkali metal-rare earth metaphosphate photoluminescent g

1976-05-21

1977-07-26

Cooper, Jack

Compositions

Inorganic luminescent compositions

Compositions containing halogen; e.g., halides and oxyhalides

106 47R, C09K 1146, C03C 316

Patent

active

040382036

ABSTRACT:
High intensity photoluminescent glasses comprising certain alkali metal-rare earth metaphosphates are suitable for use in display panels, indicator lights, and decorative illumination, etc. These glasses, with a suitable activator, have the formula:

REFERENCES:
patent: 3549554 (1970-12-01), Hirayama et al.
patent: 3580859 (1971-05-01), Buzhinsky et al.
patent: 3740241 (1973-06-01), Bromer et al.
patent: 3785834 (1974-01-01), Rapp
patent: 3853568 (1974-12-01), Chvatal
patent: 3863177 (1975-01-01), Damen et al.

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