Where to find circular OD 4-5 lenses?

Hi i just recently bought a pair of SteamPunk "welding" goggles off of Amazon as a sort of costume. I think it would be pretty cool if I could replace the original lenses with some laser safe lenses as well, preferably OD4 or greater. Only problem is that I can't seem to find anywhere that I can buy circular replacement lenses. I'm not sure what size lens I will need but when I get them tomorrow I'll be sure to report back. If anyone could help me out here I would be really grateful.

These are the goggle I ordered:

http://www.amazon.com/Steampunk-Vic...&redirect=true&ref_=oh_aui_detailpage_o00_s00

Thanks for your help :beer:

Probably best to get something like this and cut it to size: Acrylic Laser Safety (viewing) Windows are intended to provide safe viewing of lasers. They are excellent for use in enclosures, walls, glove boxes and windows.

diachi said:

Probably best to get something like this and cut it to size: Acrylic Laser Safety (viewing) Windows are intended to provide safe viewing of lasers. They are excellent for use in enclosures, walls, glove boxes and windows.

Click to expand...

I wasn't quite looking to spend as much as that :undecided: I wouldn't really have use for the rest of the sheet once I cut out the lenses. If I can't find anything else I will just buy a sheet of this and try to find uses for the left over material. Thanks for the suggestion though!

One option would be to get some laser window material, either plastic or glass, and cut your lenses to fit your frames.
"Laser Safety Industries" is one company that sells them.

Edit: You beat me to it diachi!

BowtieGuy said:

One option would be to get some laser window material, either plastic or glass, and cut your lenses to fit your frames.
"Laser Safety Industries" is one company that sells them.

Click to expand...

Bet you to it See OPs response above.

BowtieGuy said:

One option would be to get some laser window material, either plastic or glass, and cut your lenses to fit your frames.
"Laser Safety Industries" is one company that sells them.

Click to expand...

Yeah, Diachi suggested that and if I can't find any other options I will probably just do that. I guess I can always find a use for the remainder of the sheet. Thanks for the suggestion