Night Vision Device
From Night Vision Wiki
A night vision device (NVD) is an electro-optical device that will give a user the ability to view the environment even when it is too dark to do so with the unaided eye.
Principle
There are two types of night vision devices, analog and digital.
Analog
In an analog device, an objective lens at the front of the device bundles and focuses light onto the input of an image intensifier.
Devices
This wiki contains many pages about specific models of night vision devices.