H - Electricity – 01 – J
Patent
H - Electricity
01
J
31/128
H01J 1/63 (2006.01) C09K 11/77 (2006.01)
Patent
CA 1082910
ABSTRACT: A luminescent silicate activated by bivalent europium. The silicate is a fluorophlogopite of K, Sr and/or Ba. Preference is given to silicates which are defined by the formula K1-x-pMex-qEup+qMg3Al1+x+pSi3-x-pO10F2, in which Me = Sr, Ba and 0 ? x ? 1 and 0.01 ? p+q ? 0.25. The silicates have a narrow-band emission with maximum at 360 to 390 nm. -14-
249872
Van Dijk Durk J.
Verstegen Judicus M.p.j.
N.v. Philips Gloeilampenfabrieken
Van Steinburg C.e.
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