Made my self safty glasses...

[GeekJoan]

Also had a friend make me an optical table to start building on.

[300EVIL]

Nice work, however, the polarized film doesn't guarantee safety from a stray 445nm beam. Real safety glasses are formulated and rigorously tested to guarantee safety at a given power level.

While they are nice and probably do work I wouldn't rely on them.

I typically rely on commonsense and good judgment for the visible spectrum. Goggles are mandatory for UV or IR wavelengths. My opinion.

[GeekJoan]

Yeah, when I come across some other glasses I will get thos.

But I have done some research befor I got this polarization filter, and they should block about 80% of the light with just one of them. Now I have two and they are at a slight angle "to start with" so Im blocking more than 80%. Here is a white paper of the filter:
http://geekjoan.com/hn22.pdf

[300EVIL]

Yeah, when I come across some other glasses I will get thos.

But I have done some research befor I got this polarization filter, and they should block about 80% of the light with just one of them. Now I have two and they are at a slight angle "to start with" so Im blocking more than 80%. Here is a white paper of the filter:
http://geekjoan.com/hn22.pdf

While the numbers do look very good, polarizing film like this is not rated for heavy power densities that can burn off coatings. I can imagine scattered radiation from 445 not being an issue. Just don't try a direct hit... LOL. Just the fact that they are adjustable is pretty cool.

[GeekJoan]

Yeah I did a test and hold a piece infront of the laser and I can see that its makeing damage to it. So it is not for direct hits... I do some tests and post then here later.

[GeekJoan]

Mabye I should mention why I have a problem with this glasses that you buy. They are all for people that dont have glasses to start with. This kind I used fit very nice over a par of normal glasses.

So if someone know of this kind that you can use over normal glasses please do tell me.

[tribble]

Maybe something like this would fit?

http://www.noirlaser.com/styles/60.html

[GeekJoan]

Yeah, that seems to be the stuff.

What does VLT 2% stand for?

[RayTracer]

If you rotate the glasses while exposed to the beam with 80 % crossed polars you will have certain orientations that allow more transmittance than others, so don't get all comfortable if it works in one orientation, it might not when you tilt your head. This is something you can easily test, but better to do it at low power.

[coollaser]

Also had a friend make me an optical table to start building on.

it is very cool,like my hydroscope