pic: Team 25 IR Goggles

[Otaku]

Originally Posted by Mr. Freeman

I'm still not too clear on how these work. I understand that the red and blue filters allow only the IR light to be passed through, but why does that matter if the human eye can't see IR in the first place? It makes sense that it would work with a camera because of how digital cameras detect light, but if the human eye can't see it then how does only exposing the eye to IR help at all?

The naked eye CAN see IR. It's just that it's so horribly washed out by "visible light" that we never notice it. Filter out typical "visible light", and what do you get? IR.

I've been fiddling with this, too. How do you guys make them? They look like video goggles.