Multi-junction solar cells with a homogenizer system and coupled non-imaging light concentrator
    1.
    发明授权
    Multi-junction solar cells with a homogenizer system and coupled non-imaging light concentrator 有权
    具有均质器系统和耦合的非成像光集中器的多结太阳能电池

    公开(公告)号:US08631787B2

    公开(公告)日:2014-01-21

    申请号:US12206547

    申请日:2008-09-08

    IPC分类号: F24J2/10

    摘要: The present embodiments provide methods and systems to homogenize illumination on a target. Some embodiments provide rotational symmetric dual-reflector solar concentrators that include a concave primary reflector with an aim-direction directed toward the sun to receive optical radiation in a far-field angle within an angle of acceptance and redirect radiation upward and centrally generating flux concentration, a secondary reflector positioned coaxial with said primary reflector to receive said redirected radiation and redirect radiation downward and centrally generating flux concentration solar rays, and a central target zone receiving said concentrated solar rays, where cross sections of said primary and secondary reflectors both further comprise a multiplicity of segments that establish a correspondence between pairs of segments, each of said segments of said primary reflector such as to image said angle of acceptance onto said corresponding segment of said secondary reflector to image onto said target zone.

    摘要翻译: 本实施例提供了使目标上的照明均匀化的方法和系统。 一些实施例提供旋转对称双反射器太阳能聚光器,其包括凹形初级反射器,其目标方向指向太阳以接收在接受角度内的远场角度的光辐射并且向上重定向辐射并且集中产生通量浓度, 与所述主反射器同轴地定位以接收所述重定向的辐射并向下定向辐射并且集中产生通量浓度太阳光的次级反射器,以及接收所述集中太阳射线的中心目标区域,其中所述主反射器和次反射器的横截面还包括 在多个分段之间建立对应关系的多个分段,所述主反射器的每个所述分段,以将所述接收的所述角度图像映射到所述辅助反射器的所述对应的分段上,以成像到所述目标区域上。

    Optical manifold
    5.
    发明授权
    Optical manifold 有权
    光学歧管

    公开(公告)号:US07665858B2

    公开(公告)日:2010-02-23

    申请号:US11982480

    申请日:2007-11-02

    IPC分类号: F21V33/00

    摘要: Optical systems are described that have at least one source of a beam of blue light with divergence under 15°. A phosphor emits yellow light when excited by the blue light. A collimator is disposed with the phosphor and forms a yellow beam with divergence under 15°. A dichroic filter is positioned to transmit the beam of blue light to the phosphor and to reflect the beam of yellow light to an exit aperture. In different embodiments, the beams of blue and yellow light are incident upon said filter with central angles of 15°, 22°, and 45°. The filter may reflect all of one polarization and part of the other polarization, and a polarization rotating retroreflector may then be provided to return the unreflected light to the filter.

    摘要翻译: 描述的光学系统具有至少一个蓝光束的源,发散度在15°以下。 当由蓝光激发时,荧光体发射黄光。 准直仪与磷光体一起设置,并形成黄色光束,发散度在15°以下。 二向色滤光器被定位成将蓝光束传输到荧光体并将黄光束反射到出射孔。 在不同的实施例中,蓝色和黄色光束以15°,22°和45°的中心角度入射在所述过滤器上。 滤波器可以反射所有的一个偏振和另一个极化的一部分,然后可以提供偏振旋转后向反射器以将未反射的光返回到滤光器。