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    • 35. 发明公开
    • MONOCHROMATIC LIGHT SOURCE WITH HIGH ASPECT RATIO
    • 具有高纵横比的单色光源
    • EP2335294A1
    • 2011-06-22
    • EP09791608.4
    • 2009-08-18
    • 3M Innovative Properties Company
    • LEATHERDALE, Catherine, A.HAASE, Michael, A.BALLEN, Todd, A.
    • H01L33/20H01L33/50H01L33/10
    • H01L33/20H01L33/08H01L33/10H01L33/505
    • Light emitting systems are disclosed. The light emitting system includes an LED that emits light at a first wavelength. A primary portion of the emitted first wavelength light exits the LED from a top surface of the LED that has a minimum lateral dimension Wmin. The remaining portion of the emitted first wavelength light exits the LED from one or more sides of the LED that has a maximum edge thickness Tmax (122, 124). The ratio Wmin/Tmax is at least 30. The ligth emitting system further includes a re-emitting semiconductor construction that includes a semiconductor potential well. The re-emitting semiconductor construction receives the first wavelength light that exits the LED from the top surface and converts at least a portion of the received light to light of a second wavelength. The integrated emission intensity of all light at the second wavelength that exit the light emitting system is at least 4 times the integrated emission intensity of all light at the first wavelength that exit the light emitting system.
    • 公开了发光系统。 发光系统包括发射第一波长的光的LED。 所发射的第一波长光的主要部分从具有最小横向尺寸Wmin的LED的顶部表面离开LED。 所发射的第一波长光的剩余部分从具有最大边缘厚度Tmax(122,124)的LED的一个或多个侧面离开LED。 比率Wmin / Tmax至少为30.光线发射系统还包括包含半导体势阱的再发射半导体构造。 再发射半导体构造接收从顶部表面离开LED的第一波长光,并将接收到的光的至少一部分转换成第二波长的光。 离开发光系统的第二波长处的所有光的积分发射强度是离开发光系统的第一波长处的所有光的积分发射强度的至少四倍。