you get some green laser safty glasses and shine the laser through it, as the laser melts small layers of the plastic it projects an image of what its melting on the wall, very cool effect.
Dustin
Yep, they would be - but those are probably $8.00 glasses, if that. Also need to be careful when melting things like that with a laser that powerful - the melting itself causes unpredictable reflections - one of which could end up in your eye if you're not protected.
(In other words, if you're going to melt anti-green goggles, wear anti-green goggles.)
nah.. you want goggles for green because they absorb green. Goggles that are made to block red will pass green, while goggles for green absorb it almost completely. Lasers burn objects best when the objects are colored in hues that absorb them. Instead if getting passed straight through the material, the energy gets passed to the material itself which causes it's temperature to increase, eventually melting and producing those trippy patterns.
I hate to hijack the topic, but we seem to be on the subject - where would I buy green goggles from? I know everywhere sells them, but I frankly don't trust china with something as valuable as my seeing holes.
Use the search next time... There have been many topics titled "what goggles are good", or "which goggles should I get". But I would personally recommend either OEM Laser systems, or Dragon Lasers. Both are $50 after shipping. The WL ones are also good, but shipping is incredibly expensive.