LIGHT-EMITTING DEVICE COMPRISING A DOME-SHAPED CERAMIC PHOSPHOR
    10.
    发明申请
    LIGHT-EMITTING DEVICE COMPRISING A DOME-SHAPED CERAMIC PHOSPHOR 审中-公开
    包含圆顶形陶瓷磷光体的发光装置

    公开(公告)号:US20100301367A1

    公开(公告)日:2010-12-02

    申请号:US12788154

    申请日:2010-05-26

    IPC分类号: H01L33/52

    摘要: Some embodiments provide a light-emitting device comprising: a light-emitting diode; a substantially transparent encapsulating material having a refractive index in the range of about 1.3 to about 1.8; a layer of low refractive index material having a refractive index in the range of about 1 to about 1.2; and a translucent ceramic phosphor having a refractive index in the range of about 1.6 to about 2.7, and is substantially dome-shaped with substantially uniform thickness. Some embodiments provide a light-emitting device comprising: a substrate; a light-emitting diode mounted on a surface of the substrate; and a substantially hemispheric cover mounted on the surface of the substrate so as to enclose the light emitting diode; wherein the substantially hemispheric cover comprises an outer layer, a middle layer, and an inner layer arranged concentrically, with the inner layer being nearest the light-emitting diode.

    摘要翻译: 一些实施例提供一种发光器件,包括:发光二极管; 折射率在约1.3至约1.8范围内的基本透明的包封材料; 折射率在约1至约1.2范围内的低折射率材料层; 以及折射率在约1.6至约2.7范围内的半透明陶瓷荧光粉,并且基本上圆顶形,具有基本均匀的厚度。 一些实施例提供一种发光器件,其包括:衬底; 安装在所述基板的表面上的发光二极管; 以及安装在所述基板的表面上以包围所述发光二极管的大致半球形盖; 其中所述基本上半球形的盖子包括外层,中间层和同心布置的内层,所述内层最靠近所述发光二极管。