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    • 4. 发明授权
    • Enhanced brightness light emitting device spot emitter
    • 增强型亮度发光器件点发射器
    • US06969946B2
    • 2005-11-29
    • US10669789
    • 2003-09-23
    • Frank M. SterankaDaniel A. SteigerwaldMatthijs H. Keuper
    • Frank M. SterankaDaniel A. SteigerwaldMatthijs H. Keuper
    • H01L33/46H01L33/58H01L33/60H01J5/16H05B33/00H05B33/22
    • H01L33/58H01L33/46H01L33/60
    • The amount of usefully captured light in an optical system may be increased by concentrating light in a region where it can be collected by the optical system. A light emitting device may include a substrate and a plurality of semiconductor layers. In some embodiments, a reflective material overlies a portion of the substrate and has an opening through which light exits the device. In some embodiments, reflective material overlies a portion of a surface of the semiconductor layers and has an opening through which light exits the device. In some embodiments, a light emitting device includes a transparent member with a first surface and an exit surface. At least one light emitting diode is disposed on the first surface. The transparent member is shaped such that light emitted from the light emitting diode is directed toward the exit surface.
    • 光学系统中有效捕获的光的量可以通过将光集中在可由光学系统收集的区域中来增加。 发光器件可以包括衬底和多个半导体层。 在一些实施例中,反射材料覆盖在衬底的一部分上并且具有光从该器件离开的开口。 在一些实施例中,反射材料覆盖在半导体层的表面的一部分上并且具有光从该器件离开的开口。 在一些实施例中,发光器件包括具有第一表面和出射表面的透明构件。 至少一个发光二极管设置在第一表面上。 透明构件被成形为使得从发光二极管发射的光朝向出射表面。