Compositions – Inorganic luminescent compositions – Compositions containing halogen; e.g. – halides and oxyhalides
Patent
1975-07-22
1978-02-28
Douglas, Winston A.
Compositions
Inorganic luminescent compositions
Compositions containing halogen; e.g., halides and oxyhalides
106 47Q, 2523016P, C09K 1142, C09K 1146, C03C 316
Patent
active
040766470
ABSTRACT:
An optical glass with a path length independent of temperature comprises between 40 and 55% by weight P.sub.2 O.sub.5, between 40 and 54% by weight BaO and between 6 and 12% by weight Nb.sub.2 O.sub.5. Part of the BaO may be replaced by SrO or CaO. Minor amounts of SiO.sub.2 or B.sub.2 O.sub.3 may be included as may other metal oxides such as ZnO, Sb.sub.2 O.sub.3 and La.sub.2 O.sub.3.
REFERENCES:
patent: 2393469 (1946-01-01), Harley
patent: 2996391 (1961-08-01), Weissenberg et al.
patent: 3250721 (1966-05-01), DePaolis et al.
patent: 3328181 (1967-06-01), Weidel
patent: 3731226 (1973-05-01), Switzer et al.
patent: 3846142 (1974-11-01), Buzhinsky et al.
patent: 3979322 (1976-09-01), Alexev et al.
Faulstich Marga
Reitmayer Franz
Bell Mark
Douglas Winston A.
Jenaer Glaswerk Schott & Gen.
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