I just brought this laser on ebay Military 20 Miles Blue Purple 405nm Laser Pointer Pen Visible Beam+18650+Charger | eBay
i was wondering if i need glasses if i were to use it at night. i am going to be about 15 feet away from the laser dot. also are these glasses good enough?
Laser Safety glasses goggles 190nm-540nm(green/purple/blue) USA Seller
also do i need a ir filter?
i was wondering if i need glasses if i were to use it at night. i am going to be about 15 feet away from the laser dot. also are these glasses good enough?
Laser Safety glasses goggles 190nm-540nm(green/purple/blue) USA Seller
also do i need a ir filter?