I'm making a little UV exposure box and I'm looking for a way to evenly spread out the UV light.
I've used Fresnel lenses to do just this in the past, but that was for visible light. But from what I've read, not all things work at all wavelengths and some materials will block UV.
So my first question, would a Fresnel lens still work and evenly spread out UV light?
What material should I look for? The lens I've seen are PVC and from what I've seen elsewhere, PVC has good UV resistance, but I don't know if that means it will just hold up to UV or if it will block UV all together.
Any tips or suggestions would be great thank you