Laser-Based Night Vision Works at Long Ranges
Night vision isn’t magic and passive night vision can’t see in pitch darkness — it can only amplify whatever little bit of light is already there. But active night vision has some interesting quirks that you can harness to do things that almost seem magical. For example, YouTuber Project 326 built their own night vision system that works at long ranges.
To understand how this works, you first need an overview of the basic principles of active night vision. It is actually really simple: it shines a bright light. But there is a trick, which is that the bright light is in the infrared spectrum, so we humans can’t see it with our naked eyes. Cameras, however, can see infrared light. So active night vision goggles have cameras that pick up the scene illuminated by infrared and show you the result on a display.
Typically, you want to see...
Copyright of this story solely belongs to hackster.io. To see the full text click HERE
