How do Night Vision Goggles work?

The night vision goggles detect low levels of light and amplify them for better vision during the dark times like nights. Talking scientifically, when the dim light enters the night vision goggles, it hits an internal layer known as the photocathode that releases electrons. These emitted electrons when hit the second layer known as the micro-channel plate, get multiplied before hitting the third layer known as the phosphor screen. nightvision4less.com