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    • 14. 发明申请
    • Photonic Band Gap Materials With Phosphors Incorporated
    • 带荧光粉的光子带间隙材料
    • US20080006835A1
    • 2008-01-10
    • US11572239
    • 2005-07-14
    • Cornelis RondaHolger MonchHans Nikol
    • Cornelis RondaHolger MonchHans Nikol
    • H01L33/00
    • G02B6/1225B82Y20/00H01L33/502
    • The present invention relates to the use of photonic band gap materials with phosphors incorporated. Photonic band gap materials play an important role for LEDs as light sources in applications where either a high radiance is desirable or LEDs are used in optical systems. The optical properties of current LEDs are such that the radiance is rather low and cannot be increased by standard means. It is an object of the invention to improve the radiance of light emitting devices by making use of photonic band gap materials with phosphors incorporated. According to the invention there is provided as structured material comprising a photonic structure that adjusts a range of photon frequencies, also referred to as photon density of states, in specific directions only, further comprising phosphor material having at least one emission mode for which the photon frequency is in the range adjusted by the photonic structure wherein the structured material has a symmetry lower than cubic such that the photonic structure adjusts the generation of photons emitted via said it least one emission mode of the phosphor material in less than three directions in this way increasing the radiance.
    • 本发明涉及掺入磷光体的光子带隙材料的应用。 光子带隙材料对于在需要高辐射度或在光学系统中使用LED的应用中的LED作为光源起着重要的作用。 电流LED的光学特性使辐射度相当低,不能通过标准方法增加。 本发明的一个目的是通过使用掺入磷光体的光子带隙材料来改善发光器件的辐射度。 根据本发明,提供了包括光子结构的结构材料,该光子结构仅在特定方向上调节光子频率的范围,也称为光子状态密度,还包括具有至少一种发射模式的磷光体材料,所述光子 频率处于由光子结构调整的范围内,其中结构材料具有低于立方体的对称性,使得光子结构以这种方式调节沿着少于三个方向的荧光体材料的所述至少一种发射模式发射的光子的产生 增加光芒。
    • 16. 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。