Here is a short tutorial that will teach you how to make your own infrared goggles for under 10 bucks. Warning: If you ever decide to build yourself a pair, never, ever look at the sun with them. Doing so will burn your corneas in seconds. UV and IR filters only allow light from the wavelengths they were designed for to pass through the goggles. Unfortunately, these particular wavelengths can burn your optic nerves as well as your corneas if you are not careful, so please use common sense when messing around with them. Since the lenses on these goggles are very dark, they make your pupils go wide open, making them even more susceptible to IR light. You have been warned!