I'd like to take a clear plastic and make it photochromatic, like you find in transition eyeglass lenses.
This is for a small, one-off project, so any ideas that are difficult or expensive may still be worth it.
Imagine taking a small, clear plastic figurine and making it darken under UV light. I'd either have to make a photochromatic material and cast it into the desired shape, or make the figurine and coat it to make it photochromatic.
The most information I've found so far are on the wikipedia
and how stuff works
They seem to suggest that a chemical bath of Silver Halide or Silver Chloride would create the effect, but as I'm not a chemist I'm hoping for someone to either say "oh that's easy!" or "oh that's crazy!".
Beyond that does anyone know of any materials suppliers that happen to have photochromatic plastics?
A long shot question I know, but thanks for your help!