LED device and optical detector therewith for bill validator
    1.
    发明公开
    LED device and optical detector therewith for bill validator 审中-公开
    LED-Vorrichtung und optischer Detektor damitfüreinenBanknotenprüfungsautomat

    公开(公告)号:EP2124074A1

    公开(公告)日:2009-11-25

    申请号:EP09011013.1

    申请日:2006-04-12

    IPC分类号: G01V8/14 H01L33/00

    摘要: An LED device is provided which comprises a plastic encapsulant 7 formed with an integrated cylindrical lens 8 disposed opposite to an LED chip 5 to provide light from LED chip 5 with the wider directivity angular range in the vertical Y irradiative direction than that in the horizontal X irradiative direction. When light from LED chip 5 is irradiated through cylindrical lens 8 out of plastic encapsulant 7, an outer surface of cylindrical lens 8 serves to transform light from LED chip 5 into a substantially parallel light beam which has a generally linear beam section wider in the directivity angular range of the necessary vertical Y irradiative direction, and narrower in the directivity angular range of the unnecessary horizontal X irradiative direction.

    摘要翻译: 提供了一种LED装置,其包括塑料密封剂7,其形成有与LED芯片5相对设置的集成的柱面透镜8,以向LED芯片5提供具有比垂直Y辐射方向更宽的方向性角度范围的光, 照射方向。 当来自LED芯片5的光通过圆柱形透镜8从塑料密封剂7中照射时,柱面透镜8的外表面用于将来自LED芯片5的光转换成基本上平行的光束,该光束的方向性较宽 必要的垂直Y辐射方向的角度范围,并且在不必要的水平X辐射方向的方向性角度范围内更窄。