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    • 3. 发明申请
    • Fluorescent lamp with ultraviolet reflecting layer
    • 带紫外线反射层的荧光灯
    • US20050242702A1
    • 2005-11-03
    • US10515693
    • 2003-05-27
    • Thomas JustelWalter MayrCornelis RondaVolker Hildenbrand
    • Thomas JustelWalter MayrCornelis RondaVolker Hildenbrand
    • H01J61/35H01J61/42H01J17/16H01J63/04
    • H01J61/42
    • An ultraviolet reflecting layer and a fluorescent lamp is described, comprising an envelope having an inner surface, means within the lamp envelope for generating ultraviolet radiation, a light emitting layer of a luminescent material for generating visible light when impinged by ultraviolet radiation, and said ultraviolet reflecting layer, located between the light emitting layer and the inner surface of the lamp envelope, wherein the ultraviolet reflecting layer comprises a metal phosphate and/or a metal borate, with the metal being selected from Sc, Y, La, Gd, Lu and Al, or combinations thereof. The phosphates or borates used in the ultraviolet reflecting layer may optionally be doped by a Tn3+ and/or Dy3+ activator, to further improve the quantum yield of the conversion of UV radiation into visible light.
    • 描述了一种紫外线反射层和荧光灯,其包括:具有内表面的外壳,用于产生紫外线辐射的灯外壳内的装置;用于在被紫外线照射时产生可见光的发光材料的发光层;以及所述紫外线 位于发光层和灯壳内表面之间的反射层,其中紫外线反射层包括金属磷酸盐和/或金属硼酸盐,金属选自Sc,Y,La,Gd,Lu和 Al或其组合。 在紫外线反射层中使用的磷酸盐或硼酸盐可以任选地被Tn3 +和/或Dy3 +活化剂掺杂,以进一步提高UV辐射转换成可见光的量子产率。