LIGHT EMITTING DIODE PROJECTOR
    1.
    发明公开

    公开(公告)号:EP2633365A4

    公开(公告)日:2018-02-21

    申请号:EP11836753

    申请日:2011-10-20

    Abstract: The invention relates to a light emitting diode (LED) light source comprising an LED die, or a closely packed die array or matrix of die arrays, substantially and efficiently coupled to non-imaging collection optics. The non-imaging collection optics operate to provide a homogenized LED output having a near field whose intensity is highly uniform and a reduced far field extent substantially preserving the étendue (area, solid angle, index squared product) of the LED output. The near field, in turn, is imaged by a downstream relay lens to an illumination plane a specific distance away.

Patent Agency Ranking