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    • 2. 发明授权
    • Luminescent meta-borate substances
    • 发光超硼酸盐物质
    • US6085971A
    • 2000-07-11
    • US392279
    • 1999-09-09
    • Walter TewsGundula RothIna Fethke
    • Walter TewsGundula RothIna Fethke
    • C09K11/77C09K11/78C09K11/86H01J29/20H01J61/44C09K11/63C09K11/57C09K11/79
    • H01J61/44C09K11/778H01J29/20
    • The present invention relates to variously activated luminescent metaborates having luminescence properties improved in comparison with conventional luminescent substances. Moreover, the activated luminescent metaborates have outstanding stability under the influence of short-wave UV radiation so that they are preferably suitable for use in luminescent screens, in particular, low-pressure mercury vapor discharge lamps of all types and designs. The luminescent substances of the present invention are based on rare earth metal borates of the formula:(Y,La).sub.1-x-y-z Ce.sub.x Gd.sub.y Tb.sub.2 (Mg,Zn,Cd).sub.1-p Mn.sub.p B.sub.5-q-s (Al,Ga).sub.q (X).sub.s O.sub.10wherein X is Si, Ge, P, Zr, V, Nb, Ta, W or the sum of a plurality of the stated elements and p, q, s, x, y and z are alternatively .ltoreq.1.
    • 本发明涉及与常规发光物质相比具有改进的发光特性的各种活化的发光偏硼酸盐。 此外,活化的发光偏硅酸盐在短波紫外辐射的影响下具有突出的稳定性,因此它们优选适用于各种类型和设计的发光屏,特别是低压汞蒸气放电灯。 本发明的发光物质是基于下式的稀土金属硼酸盐:(Y,La)1-xy-zCexGdyTb2(Mg,Zn,Cd)1-pMnpB5-qs(Al,Ga)q(X) X是Si,Ge,P,Zr,V,Nb,Ta,W或多个所述元素的和,p,q,s,x,y和z交替地为<= 1。