I’m a bit paranoid about shining a laser point into someone’s eyes. Are there laser pointers which have an easy to see dot out to at least 3 meters and yet are safe if I accidentally shine it into someone’s eyes?
Rechargeable or using AA batteries would be a plus.
legal visible laser pointers have a limited power that should not cause harm with a fleeting fraction of a second exposure. find one less than 1 mW.
Even 5 mW should be eye safe, get a green one. Our eyes are most sensitive to wavelengths close to that of green lasers, so it’ll be apparently brighter than a red one for the same power.
You have to be careful with some of the green ones, mine goes up to 22 mW on a a new battery even though it says 5 mW. You can even get higher power if you tweak the alignment of the crystal in them that doubles the frequency.