Discussion Forums > Technology
Blue Lazer pointer
Sosseres:
Mm would not be fun going to jail for using one carelessly. :/
boyankir:
You can try other website,I bought a 20mw blue laser pointer at laserpointerpen.net ,only $579.99
bloody000:
--- Quote from: quekmeister on September 12, 2009, 04:56:16 AM ---If you look at the other laser pointers on sale, the red laser is $7.99 and the green laser is 69.99, so this one is just another 10 times more expensive. ;)
EDIT: Just found this, I don't see that much difference in the colour, and it's much cheaper.
--- End quote ---
405nm is/almost is UV, much harder to see than 473nm(blue), that's why it's cheaper.
--- Quote from: boyankir on September 12, 2009, 01:44:50 PM ---You can try other website,I bought a 20mw blue laser pointer at laserpointerpen.net ,only $579.99
--- End quote ---
Even at 20mw it can easily burn our retinas.
quekmeister:
--- Quote from: bloody000 on September 12, 2009, 02:28:16 PM ---405nm is/almost is UV, much harder to see than 473nm(blue), that's why it's cheaper.
--- End quote ---
Ah, of course... all that stuff about the spectrum's fallen out of my head.
GoGeTa006:
you can actually use dvd burners and make burning lasers.
http://www.youtube.com/watch?v=HDURYHV9Ghc
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