Someone correct me if I'm mistaken, but I believe it's a lot more complicated then that. Your eye can't focus on a transparent display so close to the eye, so t

Someone correct me if I'm mistaken, but I believe it's a lot more complicated then that. Your eye can't focus on a transparent display so close to the eye, so the display light must be highly converged, while incoming light is undisturbed. I'd guess they're instead reflecting light coming from a small projector on the glass with a special coting that reflects only a narrow bandwidth around the green laser light (otherwise transmissivity couldn't be so high).