I'm in for a pair.
Course, I'd not mind them cutting away some .7-2µm at the same time, but I imagine that'll push the price to the end of the beanstalk, right?
Incidentally, yellow polycarbonates for welding will strip diffuse and low-intensity 405nm as far as I can tell (like OD1-OD2 or so), but it'll remove a significant fraction of the blue spectrum at the same time. I see exactly zilch of 50 UV LEDs (405nm center wavelength) driven hard, and I get less eye irritation from sunlight than I do with sunglasses, despite the brightness at longer wavelengths being the same. Another member here verified that they do stop the diffuse reflections from BR lasers.
Of course, I wouldn't trust those to handle the beam head-on, or a strong specular reflection.
Tell me these will be OD3 or better at 405nm across the entire surface, and I'm in.
Tell me they will be OD6, and you can put me down for two.
Heck, I'll be wearing them whenever the sun is up. ;D
P.S. If you can get an >700nm OD3+ filter in there without losing the visible, then I have 1-3 more buyers for you; seperate quote?