From air-sea rescue to counter surveillance, night vision goggles have literally changed the way we see Night vision typically utilises two types of technology; thermal imaging (infrared) and image intensification or light enhancement, of which the latter is the most portable and therefore suitable for use in night vision goggles. Light Enhancement devices take the photons present in ambient light (typically moon or starlight) from the front lens, pushing them through a photocathode tube that converts them into electrons, a microchannel ...