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Forums
4hv.org :: Forums :: General Science and Electronics
« Previous topic | Next topic »   

Things not looking good for lasers right now....

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teslacoolguy
Sun Apr 06 2008, 04:38AM
teslacoolguy Registered Member #1107 Joined: Thu Nov 08 2007, 10:09PM
Location:
Posts: 792
does that mean that my class III 4mw laser may become illegal?
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HV Enthusiast
Sun Apr 06 2008, 12:48PM
HV Enthusiast Registered Member #15 Joined: Thu Feb 02 2006, 01:11PM
Location:
Posts: 3068
You could always buy a Photonic Disrupter at Wicked Lasers. The video is interesting too. Even has some Tesla coil clips in it.

http://www.wickedlasers.com/lasers/Photonic_Disruptor-65-3.html

They say its only for law enforcement, but if you contact them, they in Wicked Laser fashion, will sell it to anyone AND guarantee it gets past customs or your money back!!!!
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MOT_man
Mon Apr 07 2008, 02:18AM
MOT_man Registered Member #1127 Joined: Mon Nov 19 2007, 12:08AM
Location:
Posts: 139
I have a 20mW green DPSS laser pointer. I had to fill out a waver form - but it isn't illegal in Canada if you are over 18 yrs old.
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vasil
Mon Apr 07 2008, 10:03AM
vasil Registered Member #229 Joined: Tue Feb 21 2006, 07:33PM
Location: Romania
Posts: 506
They are in ONLINE STORES here, no forms to fill out. Hope do not become illegal.
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TheMerovingian
Mon Apr 07 2008, 11:35AM
TheMerovingian Registered Member #14 Joined: Thu Feb 02 2006, 01:04PM
Location: Prato/italy
Posts: 383
The only thing i don't understand how they are able to point a laser to an object travelling at 200MPH, with their bare hands. I cannot keep it stable and stiff using both hands in a pistol-like fashion because of natural hand shaking. Best accuracy 70cm on 200 meters on plain wall for me, while a well trained officer (with insanely high shooting accuracy) did get 40cm on 200meters, because the pointer is quite light. Planes are distant more than 1KM and more than 500meters when landing. How are they supposed to keep it pointed on the plane cockpit? It's almost impossible if you aren't close to the airport (in that case you are a moron...) with plane facing you during lift-off. Sounds a bit like overestimating the problem
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Steve Conner
Mon Apr 07 2008, 11:45AM
Steve Conner Registered Member #30 Joined: Fri Feb 03 2006, 10:52AM
Location: Glasgow, Scotland
Posts: 6706
Well, you don't have to hold it on target continuously. Even if the beam just rakes across the victim's eyes for a fraction of a second, it's still enough of a flash to leave them dazzled and distracted for a few seconds. If you're a pilot trying to execute a crosswind landing at night, those could well be just the wrong few seconds.

I've been "lased" by some kids with a cheap laser pointer from halfway up a high-rise tower block, and that's what happened to me.
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HV Enthusiast
Mon Apr 07 2008, 01:36PM
HV Enthusiast Registered Member #15 Joined: Thu Feb 02 2006, 01:11PM
Location:
Posts: 3068
don't forget that at several thousand feet, the beam diameter is probably on the order of several meters, if not more.
Again, assuming you have a powerful enough laser pointer to even get that far.
Laser pointers don't have good collimation.

dan
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TheMerovingian
Mon Apr 07 2008, 09:22PM
TheMerovingian Registered Member #14 Joined: Thu Feb 02 2006, 01:04PM
Location: Prato/italy
Posts: 383
Irresponsible morons, targeting planes during a such crucial phases like landing, the only phases that planes are vulnerable to lasers (close to ground). It is a repeating story, there is a consumer object with potential dangers, some morons use it the wrong way, end of the object for all people, this already happened for tazers , air rifles , now is happening for lasers, tomorrow maybe it will happen for camera flashes or other thing with "potential dangers"
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lpfthings
Mon Apr 07 2008, 10:13PM
lpfthings Registered Member #1361 Joined: Thu Feb 28 2008, 10:57AM
Location: Cairns, Australia
Posts: 305
Errrh, dont buy from wicked lasers, overpriced and their lasers are underspec most of the time. The photonic disruptor really is just a really out of focus laser. And yeah, i dont think they will ban laser modules, since the idiots that shine em at planes most likely dont have the knowledge on how to make them work. I'm suprised they even know how to press the button actually cheesey
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HV Enthusiast
Tue Apr 08 2008, 12:19AM
HV Enthusiast Registered Member #15 Joined: Thu Feb 02 2006, 01:11PM
Location:
Posts: 3068
lpfthings wrote ...

Errrh, dont buy from wicked lasers, overpriced and their lasers are underspec most of the time. The photonic disruptor really is just a really out of focus laser. And yeah, i dont think they will ban laser modules, since the idiots that shine em at planes most likely dont have the knowledge on how to make them work. I'm suprised they even know how to press the button actually cheesey

Uh, no. Wicked Lasers is actually one of the most reputable dealers out there. When you order a 120mW laser, you get 120mW. I have almost 15 lasers i've purchased from them since they first started selling lasers way back when.
I've also verified their power output at work in our laser lab and everyone in fact came in a bit higher than their advertised value. And this is measuring just the pure green portion of the emitted spectrum for the DPSS lasers i have. Most competitors cheat and actually measure their DPSS lasers using the combined IR and green light emitted by the laser, so yes, in fact, the total output meets the proper specification, but only part of that is actual "green" emitted light.

Now that you stated "don't buy from Wicked Lasers", please quote your source to back-up your information.
Simply saying, "errr" ain't gonna cut it.

wrote ...

And yeah, i dont think they will ban laser modules, since the idiots that shine em at planes most likely dont have the knowledge on how to make them work. I'm suprised they even know how to press the button actually

Uh, yeah. Thats a mouthful. Thanks for making that very succinct point. You definitely nailed that one!
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