The prime objective of this article is to know about night vision. Night vision devices are attractive incredibly admired these days. The major cause behind their reputation is that we see so numerous movies related to this matter. When we talk about Night vision the primary thing that comes to our brain is spy and action movies, helicopters hovering overhead serving the police in tracking robbers, a spy wonder in roads in night in search of some news, a detective with long coat searching for several latest clues.