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Thread: how many mW to "beat" a searchlight?

  1. #1
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    Default how many mW to "beat" a searchlight?

    I just saw some searchlights hitting the clouds near my house, but the clouds were too high and my ~30 mW laser was unable to make a dot on them.

    Does anyone know approximately how many mW of green would it take to "beat" a searchlight, assuming that the laser has a beam diameter of 1.5 mm and a divergence of 1.1 mrad?
    Last edited by ixfd64; 02-23-2008 at 22:52. Reason: typo

  2. #2
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    Quote Originally Posted by ixfd64 View Post
    I just saw some searchlights hitting the clouds near my house, but the clouds were too high and my ~30 mW laser was unable to make a dot on them.

    Does anyone know approximately how many mW of green would it take to "beat" a searchlight, assuming that the laser has a beam diameter of 1.5 mm and a divergence of 1.1 ,rad?
    how far you want to search?
    300mW can do this work, if you want to search far, power higher than 1watts is needed.
    below pictures is our 200mW blue search did by "TimeLord"
    Best regards!
    Bridge
    Attached Thumbnails Attached Thumbnails S1031591%20%5B640x480%5D.JPG  


  3. #3
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    If you really want to do it properly, you will need a laserscope...
    KVANT Australian projector sales
    https://www.facebook.com/kvantaus/

    Lasershowparts- Laser Parts at great prices
    https://www.facebook.com/lasershowparts/

  4. #4
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    Cool

    Hey ixf -

    Quote Originally Posted by dave View Post
    If you really want to do it properly, you will need a laserscope...
    Amen... see below with 42,000 mW - worked like a charm - seen for miles... - I'd imagine you'll also enjoy these clips...http://www.youtube.com/watch?v=HBxRFek-qNs and http://www.youtube.com/watch?v=o9Lp2I4RVBc

    Quote Originally Posted by ixfd64 View Post
    Does anyone know approximately how many mW of green would it take to "beat" a searchlight...
    ...start at 5000mW and go up from there (but get FAA's approval FIRST! - PS - no FAA in Guatemala, where these shots were taken...)

    peace..

    - j
    Attached Thumbnails Attached Thumbnails LS40_Guate_1.jpg  

    LS40_Guate_5.jpg  

    ....and armed only with his trusty 21 Zorgawatt KTiOPO4...

  5. #5
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    like said above..
    Yes you will need alot more than 5000mW to wash out a searchlight..

    here is a pic of 1.5W doing a Batman logo at the clouds
    Attached Thumbnails Attached Thumbnails Tåka Laser 053.jpg  


  6. #6
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    wow, dsli and liteglow,
    nice working, wonderful pictures.
    the pictures is take at night?
    Best regards!
    Bridge

  7. #7
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    Thanx

    Well..
    The Batman in the sky was taken in daytime
    but it was totally dark (exept from the lights from the city)

  8. #8
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    Wow, a real batman logo in the clouds. Who'd of ever thought...
    Did he respond?

  9. #9
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    Quote Originally Posted by steve-o View Post
    Wow, a real batman logo in the clouds. Who'd of ever thought...
    Did he respond?
    I`m still waiting.... I`m still waiting......

  10. #10
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    Holy moly, those are some sweet lasers!

    I doubt they're anywhere near cheap. :\

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