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ArcticMyst Security by Avery
Alpha 125 range test
- Thread starter JoshL
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wow...
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Nice Vid!
I agree with Chido, though. You need to stay more accurate when you aim it. I bought an $11 rifle scope from DX to mount on any lasers I plan to "aim" for testing purposes. That way you're not illuminating anyone who might object by mistake, and you can make sure that your beam only shines on the safe target you've chosen.
You don't want to be spotting the mayor's hillside mansion, believe me! ;D
Have fun but stay safe!
Cheers, CC
I agree with Chido, though. You need to stay more accurate when you aim it. I bought an $11 rifle scope from DX to mount on any lasers I plan to "aim" for testing purposes. That way you're not illuminating anyone who might object by mistake, and you can make sure that your beam only shines on the safe target you've chosen.
You don't want to be spotting the mayor's hillside mansion, believe me! ;D
Have fun but stay safe!
Cheers, CC
roSSco
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7 miles! 
Curiously_Coherent said:
Yea, I'm the one that was shining it from the mountains. That was kind of an impromptu test, so we didn't really think it through
Pretty much, our friend that was recording used a super high output xenon lamp to signal me, and I just kind of let loose
If we do it again in the future, we'll strap it to a tripod or something
7 miles isn't bad, it could do more easily. Stay tuned...
Here's a 0.5mw red one http://www.earthsignals.com/Collins/0036/index.htm
and
http://www.lasercomms.org.uk/76km.htm
and
http://www.lasercomms.org.uk/76km.htm
Benm
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It's nice to see from how far lasers can be seen head on, i doubt you'll be able to find a limit really. The limiting factor usually is the horizon, but if you live in a mountainous area you might be able to find 10++ mile line of sight.
Switch
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Yea...if that guy reached 76 km with a HeNe, think of what a herc could do....Or even a multiwatt green module
Benm
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I'm quite sure you could cover any distance you would realistically be able to find like that - especially with lasers with good collimation (such as HeNe's) or diode lasers running through a telescope.
But remember collimation is key in these experiments - a 1 mW with 1 mrad would do just as well as a 100 mW with 10 mrad. Color is also insignificant for communication - to a selected photocell green is no better than red, for the eye this is a different story entirely.
But remember collimation is key in these experiments - a 1 mW with 1 mrad would do just as well as a 100 mW with 10 mrad. Color is also insignificant for communication - to a selected photocell green is no better than red, for the eye this is a different story entirely.
LOL i got my nova x65 taken away by the mall cops because i was shining it at the movie theater at the time they never said
any thing about bringing lasers in but that changed shortly after. But at the time it sure freaked people out
P.S. sorry about the off topic story :'(
any thing about bringing lasers in but that changed shortly after. But at the time it sure freaked people out
P.S. sorry about the off topic story :'(
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talon said:
Not too smart.
I got my Galileo taken away by a deputy of a school once. I was pointing it at blank walls and the sky at a football game. Not even at people. He said he was legally authorized to shoot anyone playing with a green laser :
. Haha... I got it back, but it was still lame.
