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Concentrating an LEDs output.

Discussion in 'Electronic Basics' started by Rubicon, Sep 2, 2003.

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  1. Rubicon

    Rubicon Guest


    What is the best method for concentrating the flux of an LED into a
    tighter beam? In this instance the LED is an infrared type.

    I've noticed that with visible spectrum LEDs when you aim them
    directly at a sensor the wire bond to the LED chip causes a dark spot
    in the flux. Sometimes according to its make the reflector cup and
    thus the spot is off centre but more often than not it's right in the

    I was thinking of perhaps a lens system but are there other solutions
    in use? Have any of you encounted this irritation?

    I realise that I could simply offset the LED but it annoys me that
    only a small part of the flux is then being used.



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