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Would you buy an invisible or visible laser?

Visible

77%

[ 14 ]

Invisible

22%

[ 4 ]

Total Votes : 18

Author

Message

oasis8005
4.99mW Green Laser Toy

Joined: 08 Sep 2006
Posts: 7

Posted: 5/25/07, 9:24 PM Post subject: Ultraviole

They can blind birds because many have ultraviolet vision. But what do they do to humans?

Laser Ben
Wicked Lasers God

Joined: 26 Dec 2006
Posts: 1689
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Location: Cupertino, California, USA

Posted: 5/25/07, 9:28 PM Post subject:

If the invisible you are talking about is <400nM they I would choose that because it has a higher energy wavelength. _________________

veggieskater
Modified 10mW Greenie

Joined: 21 Oct 2006
Posts: 18
Location: Twin Cities, MN

Posted: 5/28/07, 8:05 AM Post subject:

UV is bad for your eyes. That's why they have sunglasses that block out UV light. So it wouldn't be very good for your eyes if a UV laser was shined in them.

ki4mor
Elite Laser

Joined: 06 Apr 2007
Posts: 233
Picture(s): 35
Movie(s): 14
Location: USA

Posted: 5/28/07, 9:00 AM Post subject:

so if you had a uv laser all the protection could be in %100 uv protetion glasses from waly world or waterver _________________ supermegaoverpowered hahaha pops Balloons 20 ft hopeing to get one look at my topic http://www.lasercommunity.com/the-more-i-thinck-about-it-the-more-i-wa nt-a-syder-gx-t14607.html homemade 5mw red laser with a aixis module found a cheap way to make laser glasses that protect aginst all wave lengths tape Black paper on an old pair of sunglasses http://ki4mor.googlepages.com/home

shikari_rock
Wicked Lasers Master

Joined: 26 Apr 2007
Posts: 979
Picture(s): 34
Movie(s): 1

Posted: 6/03/07, 11:58 AM Post subject:

No, sunglasses probably just let less light in. Because it would be dark, your (the black thing in your eye) would expand, letting more light in. When you would shine a laser in your eye, more light would come in and hit your retina. Poof! You're blind with sunglasses and 20mW< UV laser (or any laser)...

Laser Ben
Wicked Lasers God

Joined: 26 Dec 2006
Posts: 1689
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Location: Cupertino, California, USA

Posted: 6/03/07, 12:01 PM Post subject:

Well, considering most UV lasers are forth harmonic generation ND:Glass lasers, Nitrogen lasers, or eximer lasers, you would be more worried about your skin then eyes. These pulsed lasers can be many megawatt pulses. _________________

AuroraAlpha
Wicked Lasers Master

Joined: 07 Oct 2005
Posts: 763
Picture(s): 55
Movie(s): 4
Location: North Chicago

Posted: 6/03/07, 12:03 PM Post subject: Re: Ultrav

oasis8005 wrote:

They can blind birds because many have ultraviolet vision. But what do they do to humans?

I would love to have a UV laser; however I assume they are very destructive/dangerous. First of all your eyes are fairly sensitive to UV as is your skin. Think about what the sun can do, bleach colors from fabric, because fires, blind you, etc. A UV laser would do all of this easily, though it would cause fantastic fluorescing.

P.S. Make sure you have high-quality UV filtering goggles.
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Laser Ben
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Posted: 6/03/07, 12:12 PM Post subject:

http://cgi.ebay.com/Coherent-Paladin-4-watt-DPSS-Tripled-YAG-UV-Laser- 355nm_W0QQitemZ220118226790QQihZ012QQcategoryZ149983QQrdZ1QQcmdZViewIt em http://cgi.ebay.com/Newport-Vanguard-4-watt-DPSS-Tripled-YAG-UV-Laser- 355nm_W0QQitemZ220118231195QQihZ012QQcategoryZ149983QQrdZ1QQcmdZViewIt em _________________

shikari_rock
Wicked Lasers Master

Joined: 26 Apr 2007
Posts: 979
Picture(s): 34
Movie(s): 1

Posted: 6/03/07, 12:15 PM Post subject:

34.000.000$ 4 Watts?!

Laser Ben
Wicked Lasers God

Joined: 26 Dec 2006
Posts: 1689
Picture(s): 376
Movie(s): 8
Location: Cupertino, California, USA

Posted: 6/03/07, 12:24 PM Post subject:

That is about 10% of the new cost. _________________

shikari_rock
Wicked Lasers Master

Joined: 26 Apr 2007
Posts: 979
Picture(s): 34
Movie(s): 1

Posted: 6/03/07, 12:58 PM Post subject:

Laser Ben wrote:

That is about 10% of the new cost.

*Rolling on the floor having a heart attack* Shocked

Laser Ben
Wicked Lasers God

Joined: 26 Dec 2006
Posts: 1689
Picture(s): 376
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Location: Cupertino, California, USA

Posted: 6/03/07, 1:03 PM Post subject:

Those aren't even the most expensive ones. Really what we have are shoddy immataions, those lasers are abou as good as is possible by todays technology. _________________

shikari_rock
Wicked Lasers Master

Joined: 26 Apr 2007
Posts: 979
Picture(s): 34
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Posted: 6/03/07, 1:04 PM Post subject:

Is it just the wavelenght that makes it sooo expencive? Or is the system itself?

Laser Ben
Wicked Lasers God

Joined: 26 Dec 2006
Posts: 1689
Picture(s): 376
Movie(s): 8
Location: Cupertino, California, USA

Posted: 6/03/07, 1:06 PM Post subject:

Both _________________

shikari_rock
Wicked Lasers Master

Joined: 26 Apr 2007
Posts: 979
Picture(s): 34
Movie(s): 1

Posted: 6/03/07, 1:12 PM Post subject:

What kind of pump diode or whatever do they use?

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