NEW LUMINESCENT VITREOUS COMPOSITIONS, THEIR PREPARATION AND THEIR APPLICATION

摘要

Luminescent glassy composition of formula: BR/ (CF DRAWING IN BOPI) BR/ in which Ln is Y, Sc, La, Gd, Dy, Yb and Lu; the modifying agent is in particular an alkali or alkaline earth oxide, the vitrifying agent is based on B2 O3, m = 0.1-10, n = 0.1-5, p = 0.1-5, q = 0-10, t = 0.5-3, u = 10-38, v = 55-75; its preparation and application as a luminescent substance emitting white light.