Photonic Band Gap Materials With Phosphors Incorporated
    32.
    发明申请
    Photonic Band Gap Materials With Phosphors Incorporated 审中-公开
    带荧光粉的光子带间隙材料

    公开(公告)号:US20080006835A1

    公开(公告)日:2008-01-10

    申请号:US11572239

    申请日:2005-07-14

    IPC分类号: H01L33/00

    摘要: 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.

    摘要翻译: 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。

    Plasma picture screen with blue phospor
    33.
    发明授权
    Plasma picture screen with blue phospor 失效
    等离子图像屏幕与蓝色波

    公开(公告)号:US07053543B2

    公开(公告)日:2006-05-30

    申请号:US09795613

    申请日:2001-02-28

    IPC分类号: H01J17/49 H01J62/04 H01J1/62

    摘要: A plasma picture screen provided with a luminescent layer which comprises a blue Eu2+-activated phosphor and a UV-C light emitting phosphor. The mixing of an UV-C light emitting phosphor with an Eu2+-activated phosphor or coating of an Eu2+-activated phosphor with a UV-C light emitting phosphor or coating of a base layer of an Eu2+-activated phosphor with a covering layer of a UV-C light emitting phosphor clearly reduces the photodegradation of the Eu2+-activated phosphors in the VUV range.

    摘要翻译: 具有发光层的等离子体图像屏幕,其包括蓝色Eu 2+激活荧光体和UV-C发光荧光体。 UV-C发光荧光体与Eu 2+活化荧光体或Eu 2+活化荧光体的涂层与UV-C发光荧光体的混合 或者使用具有UV-C发光荧光体的覆盖层的Eu 2+激活的磷光体的基底层的涂覆明显地降低了Eu 2+的光降解, VUV范围内的活化磷光体。