Phosphor blend for an LED light source and LED light source incorporating same
    24.
    发明授权
    Phosphor blend for an LED light source and LED light source incorporating same 有权
    用于LED光源的荧光粉混合物和包含其的LED光源

    公开(公告)号:US08796715B2

    公开(公告)日:2014-08-05

    申请号:US13388953

    申请日:2010-08-17

    Abstract: There is provided a phosphor blend for an LED light source comprising from about 25 to about 35 weight percent of a cerium-activated yttrium aluminum garnet phosphor, from about 5 to about 10 weight percent of a europium-activated strontium calcium silicon nitride phosphor, and from about 50 to about 75 weight percent of a europium-activated calcium magnesium chlorosilicate phosphor. An LED light source in accordance with this invention has a B:G:R ratio for a 5500 K daylight balanced color film of X:Y:Z when directly exposed through a nominal photographic lens, wherein X, Y and Z each have a value from 0.90 to 1.10.

    Abstract translation: 提供了一种用于LED光源的磷光体混合物,其包含约25至约35重量%的铈活化的钇铝石榴石荧光体,约5至约10重量%的铕活化的锶钙氮化硅荧光体,以及 约50-约75重量%的铕激活的钙镁镁硅酸盐荧光体。 根据本发明的LED光源,当通过标称摄影透镜直接暴露时,对于5500K的日光平衡彩色胶片X:Y:Z具有B:G:R比率,其中X,Y和Z各自具有值 从0.90到1.10。

    FLUORESCENT SUBSTANCE AND LIGHT-EMITTING DEVICE EMPLOYING THE SAME
    29.
    发明申请
    FLUORESCENT SUBSTANCE AND LIGHT-EMITTING DEVICE EMPLOYING THE SAME 审中-公开
    使用其的荧光物质和发光装置

    公开(公告)号:US20140138583A1

    公开(公告)日:2014-05-22

    申请号:US14162383

    申请日:2014-01-23

    Abstract: The present invention provides a fluorescent substance excellent both in quantum efficiency and in temperature characteristics, and also provides a light-emitting device utilizing the fluorescent substance. This fluorescent substance contains an inorganic compound comprising a metal element M, a trivalent element M1 other than the metal element M, a tetravalent element M2 other than the metal element M, and either or both of O and N. In the inorganic compound, the metal element M is partly replaced with a luminescence center element R. The crystal structure of the fluorescent substance is basically the same as Sr3Al3Si13O2N21, but the chemical bond lengths of M1-N and M2-N are within the range of ±15% based on those of Al—N and Si—N calculated from the lattice constants and atomic coordinates of Sr3Al3Si13O2N21, respectively. The fluorescent substance emits luminescence having a peak in the range of 490 to 580 nm when excited with light of 250 to 500 nm.

    Abstract translation: 本发明提供了量子效率和温度特性都优异的荧光物质,并且还提供了利用荧光物质的发光装置。 该荧光物质含有包含金属元素M,金属元素M以外的三价元素M1,金属元素M以外的四价元素M2,O和N中的任一种或两者的无机化合物。在无机化合物中, 金属元素M部分地被发光中心元件R替代。荧光物质的晶体结构基本上与Sr 3 Al 3 Si 13 O 2 N 21相同,但M1-N和M2-N的化学键长度在±15%的范围内基于 分别由Sr3Al3Si13O2N21的晶格常数和原子坐标计算Al-N和Si-N。 当用250〜500nm的光激发时,荧光物质发射具有在490〜580nm范围内的峰值的发光。

Patent Agency Ranking