Luminescent materials and discharge lamp containing the same

Details Luminescent materials and discharge lamp containing the same Luminescent materials and discharge lamp containing the same

1978-08-24

1979-04-24

Cooper, Jack

Electric lamp and discharge devices

With luminescent solid or liquid material

With gaseous discharge medium

2523014P, 2523014F, C09K 1146

Patent

active

041514432

ABSTRACT:
A luminescent material having the eulytine crystal structure and a composition defined by Ca.sub.3-x-y-p Me.sub.x Sn.sub.p Ln.sub.1+y-q-r A.sub.q Sb.sub.r (PO.sub.4).sub.3-y (SiO.sub.4).sub.y, wherein Me is Sr and/or Ba, Ln is Y, La, Gd and/or Lu, and A is Ce and/or Tb and wherein 0.ltoreq.x.ltoreq.2.5, 0.ltoreq.y.ltoreq.0.5, 0.ltoreq.P.ltoreq.0.2, x+y+p.ltoreq.2.5, 0.ltoreq.q.ltoreq.1+y-r, 0.ltoreq.r.ltoreq.0.5, p+q+r.noteq.0.

REFERENCES:
patent: 3025423 (1962-03-01), Rimbach
patent: 3422024 (1969-01-01), McAllister
patent: 3525698 (1970-08-01), Leto et al.
patent: 3634282 (1972-01-01), Denis et al.
patent: 3893939 (1975-07-01), DeKalb et al.
patent: 4049992 (1977-09-01), Verstegen et al.
Blasse, "J. of Solid State Chemistry", 2, pp. 27-30 (1970).
Engel, "Chem. Abstracts", vol. 76, 1972, 64540c.
Westinghouse, "Chem. Abstracts", vol. 85, 1976, 27845w.

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