2" Square UV/IR Filter

[mophead]

I have two 2" UV/IR filters that would make nice apeture glass.

I am considering offers, trades, screw-you's, just about anything.....

[Laserman532]

screw you! JK of course

What is it from that blocks UV and IR? Is it a hot or cold glass?

2" size is nice!

[allthatwhichis]

You should check to see how well it reflects 405nm. You could have six or eight 405nm dichros depending on how well you can cut them.

[mophead]

The glass is room tempreture ~74 degF.

Really though, I don't know what kind it is. They were in a lot of assorted optics and mounts that i got.

Now you mention it, they might just make good dichros. Looking at the reflection, it looks just like the 405 dichro we got in the group buy. I'll get out the laserbee and a diode and check it this weekend when I have more time.