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IIRC this is how cheap green laser pointers work too. They use a near-ir diode and then use magic crystals to change the frequency into the green range. And if
by voidUpdate 2y ago
IIRC this is how cheap green laser pointers work too. They use a near-ir diode and then use magic crystals to change the frequency into the green range. And if the manufacturer is really naughty, they won't put an IR filter on the end to stop you blasting your eyes with any unconverted IR
- pvillano 2y agoOk but you shouldn't blast your eyes with the green light either?
- piuantiderp 2y agoYes, but at least you have a chance at seeing it. IR? Invisible beam. Stuff of nightmares that this is so easily and cheaply available