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    • 67. 发明申请
    • LED PACKAGE WITH ENCAPSULATED CONVERGING OPTICAL ELEMENT
    • LED封装带封装的光耦合元件
    • US20070257271A1
    • 2007-11-08
    • US11381332
    • 2006-05-02
    • Andrew OuderkirkCatherine Leatherdale
    • Andrew OuderkirkCatherine Leatherdale
    • H01L33/00
    • H01L33/58
    • The present application discloses a light source comprising an LED die having an emitting surface, a first optical element including a base, an apex, and a converging side joining the base and the apex, wherein the base is optically coupled to the emitting surface and a second optical element encapsulating the LED die and the first optical element. In one aspect, the base is no greater in size than the emitting surface. In a second aspect, the apex resides over the emitting surface. In a third aspect, the second optical element provides an increase in power extracted from the LED die as compared to the power extracted by first optical element alone. In a fourth aspect, the first optical element has a first index of refraction and the second optical element has a second index of refraction lower than the first index of refraction.
    • 本申请公开了一种光源,其包括具有发射表面的LED管芯,包括基座,顶点和连接基座和顶点的会聚侧的第一光学元件,其中基座光耦合到发射表面, 封装LED管芯和第一光学元件的第二光学元件。 在一个方面,基底的尺寸不大于发射表面。 在第二方面,顶点位于发射表面之上。 在第三方面,与仅由第一光学元件提取的功率相比,第二光学元件提供从LED管芯提取的功率的增加。 在第四方面中,第一光学元件具有第一折射率,并且第二光学元件具有低于第一折射率的第二折射率。