I have a pair of cheap "work safety" goggles, at home (they're NOT laser safety goggles, only those eye-protectors for when you work with tools), and are orange plastic ..... i tried them with green, but you can still see half of the beam (and LPM still measure 29mW through them, with my old 50mW (55 effective), so they worth absolutely nothing for green.
But i discovered that, being made with plastic and dye opaque to UV, they are good for BR (measuring 114mW BR through them, no read at all, and using them, i see the dot only when it hit something like white paper and cotton fabric, that become fluorescent, so i see the white part as light orange) ..... i'm not so stupid to look in the diode, anyway, but can say that, for accidental reflections and diffusions with BR, 4 euro of goggles worth the expense, if you have nothing better at hand (just cause i don't want to risk to scratch, break or loose, carrying around 80 euro of pro goggles when i want just do some experiments outside with BR
)
Still, i always suggest to use these cheap things, if someone want, just as "last chance" solution, cause real protection is too much important for play too easy with it ..... after all, we just have two eyes .....
By the way, anyone tested transmissivity and OD of the cheap focalprice ones, for green/br/uv ? (that, btw, are the same of the o-like ones) ..... i ordered a pair for do some tests, but shipment from there to Italy can take 25 / 30 days, as usual
