Hey, just a few questions...
1)- At what MWatge do you NEED eye prtecton?
2)-At what MWatge does a laser need to be at for the beam to be visable?
3)-Just for refrance, about how old is the majorady of the members here?
There's only one substitute for good laser goggles - better laser goggles.
Sorry, no shortcuts here. Imagine being blind and looking back in time, regretting you didn't spend a measly $50 on goggles to save and keep your vision. Sure its not a likely scenario, but its not a gamble I, for one, would dare take. Make no mistake though: anything but quality laser goggles IS a gamble.
it should be pointed out that for a 5mW beam to be nicely visible, it needs to be a green (532nm) beam. a normal 650nm red will not have a visible beam, and a 635nm red has a very faint beam, and i've heard people say that a 5mW blue (473nm) will also be visible, but...green's obviously optimal. and Da_Dude - nice images of link in your signature!
that was my grandpa scince he was 8...
Some retard threw a firework at him. [/quote]
It happened to me too at age 7 and my eye had to be removed, but I did it to myself by accident with a knife. If there is anything good about it, it did happen when I was young and as I grew a little order I adapted quickly. Needless to say I am very careful with lasers and everyone else should be too. Do not skimp or look for a cheap way out of good eye protection.