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Thread: Why LED cant display too far ?

  1. #1
    Enlightened
    Join Date
    Jul 2005
    Location
    Hong Kong
    Posts
    58

    Default Why LED cant display too far ?

    who can tell me?

  2. #2

    Default Re: Why LED cant display too far ?

    mmm, display as in been seen far? or as in throw?

    I think LED's CAN be displayed pretty far, arent all the jumbotrons and things like that made out of LED's now adays?

    But y leds cant throw as well...im not sure of that!

  3. #3

    Default Re: Why LED cant display too far ?

    put a magnifying glass in front of them than they can throw.

    or use Maglite Reflector in combination with a Lambertain LED. Don´t forget the Reflectors like Streamlight Lux1 4AA and Heliotek have ;-)

    than they can throw ;-)


    on ledmuseum you can find a Review on Stephens Direct Driven Lux3 @ ca. 700mA
    http://ledmuseum.candlepower.us/second/3rdshift.htm

    compare it with Surfire Aviator or with a M2 with P61 hotwire http://ledlights.home.att.net/a2.htm
    http://insulatorz.home.att.net/m2.htm
    mcd measurement is pretty impressive... isn´t it [img]/ubbthreads/images/graemlins/wink.gif[/img]

  4. #4
    Flashaholic*
    Join Date
    Sep 2004
    Posts
    2,957

    Default Re: Why LED cant display too far ?

    I swear the nextel vision screen they use at nascar races are LEDs. THey are bright and can be seen during the day too.

    As for throw, most leds need a deep reflector and most do not have them. Sure a magnifier lens will help, but it is stil la flood than spot light.

  5. #5

    Default Re: Why LED cant display too far ?

    how far is far? they have LED traffic lights that display better than the incan ones IMO.

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