I can't believe nobody has posted anything about this yet:
This is a pair of ‘Night Vision Goggles’, made by Jakks Pacific. These things run around $100 or a little more, but they use “actual night-vision technology” to allow you to…well, see at night. It does exactly what it says on the tin.
Anyway, I just thought I'd post this because, to a Ghostbusters fan, they resemble a rather futuristic pair of Ecto-Goggles. You'd have the Ectoplasmic Sensor up on top, the “light” on the left-hand eyepiece, and an LCD monitor in the right-hand one–I think. It could be reversed. And, yes, it does feature an actual LCD monitor inside one of the eyepieces…I wonder if you could use this to “see” ghosts? If anything, it'd be a creative addition to someone's GB costume, if it doesn't work.