Night-vision Googles

Night-Vision goggles are devices invented to aid people to see in the dark. Despite the name, it doesn't have to come in the form of goggles. The way how they work is in the similar fashion as the eyes of nocturnal animals relying on sight. They use whatever visible light is available in the dark and enhance it.

History
Night-Vision goggles were first invented and used nearing the end of World War 2. Those utilized during that time are known as Generation 0. More improved versions were invented during the Vietnam War in America and they were known as Generation 1. Even better versions were developed in the 1970s. Much more improved versions developed in the late 1980s.