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Thank you very much for your time! That makes perfect sense. I noticed the 405 nm laser did cause different objects to fluoresce too, so why not something in the prism. !Thank you again!

Okay, physics question. I have a 405 nm violet laser pointer . Where the laser passes through a porro prism removed from some binoculars the laser appears more like green 532 nm or so.Where the laser emerges from the prism and where a stray ray of the laser hits some clear plastic containers the...