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Farthest your laser has gone for sure?

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I was just wondering how far your laser has gone that you know of. A lot of the high powered lasers claim to go pretty far (color matters) and i'm sure they do, but how far do you know your lasers have gone.

Me and my best friend tested a 150mW 532nm Portable from exactly 3.5 miles away and by the time I saw the laser it was at about a 35 degree angle and I could see it pretty good. Also there was this annoying street light right by my house.

So how far have your lasers gone? Just give a small story containing some facts about how far your lasers went, like I did in my story.
 
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lasersbee

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As to the Thread title question...

that depends on whether you are at the Laser Beam's originating end or
looking towards the Laser's Beam from a distance...:undecided:


Jerry
 
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I suppose it should say "Farthest your laser has gone that you know of." I was pretty much asking for people to give a small story to prove there laser has gone a certain distance and how far did it go. As in my original post I stated I saw the laser at 3.5 miles. I also stated what proof I had. I am positive it goes further but I will not know until I test it. What facts do you have of the distance your laser has gone? I suppose it doesn't matter what end you are on. If you have really good binoculars and saw it hit a water tower or something than that counts too.
 
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Okay, who's gonna ask "What if it was IR?" lol "Ya, I have this 40W 808nm tube and an IR scope, I saw it on the moon"

-this is gonna be a bunch of "fishing stories" pretty soon. :) nice thread though Scotty.
 
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This thread is not for me to tell you how to figure out how far your laser can go or how to find out. If you somehow found a way (ie. nightvision goggles) then tell us how and how far your laser went for sure with facts. Although thanks for covering that and that is pretty funny but i'm sure somebody has done it, or maybe not.
 

photonaholic

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My oldest daughter has a cottage on a lake that is 3/4 mile wide.

I can sit on her deck and light up cottages on the other side really easily on a clear night with a 50mw greenie.

Shined the same laser up the valley I live in one night, drove up the road in my truck, about 2 miles away I could still see it, but the slight upward angle made it difficult. (and we almost always have some water vapor in the air here from all the lakes and ponds, that will disperse the beam somewhat)

Hope that's more on topic of what you were looking for ;)
 
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Thanks for the share. Ya, that's pretty much what I was asking. With all out stories combined we might be able to solve unanswered questions.
 

scopeguy20

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I tried several known distant hills on the Grand Canyon, and with a LED Shoppe 50 mW (usually doing about 75mW or more), I could never spot the dot at over 4 miles, seemed shorter than I thought, thought I would see it at 10 miles. -Glenn
 
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ive shined an Aries 200 Approx 230mW to this water Tower about 6 Miles away and friend saw the light on the dome


By UPS or FedEx? I've sent lasers all around the world! I could probably throw a small one a reasonable distance. :crackup:

But if you mean a laser's beam, I'd guess infinity if 18W makes it out of the atmosphere.
yee funny
 
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By UPS or FedEx? I've sent lasers all around the world! I could probably throw a small one a reasonable distance. :crackup:

But if you mean a laser's beam, I'd guess infinity if 18W makes it out of the atmosphere.
Smartass. Lol. Ya I mean the beam or dot.
 
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Unless you have tested your beam and dot on moving and stationary targets I don't think you would need to get that technical because I also asked for a story containing "facts". If you have tested all that then I would really like you to share the different results.
 
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I'd think it would take considerably less than 18W to clear the atmosphere.. I read a paper that talked about a HeNe (probably large-frame) that was detected from a Space Shuttle.. can't cite the source, though.
 




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