Indicates whether it is a:
1. Binocular - for both eyes
2. Monocular - for one eye

An image intensifier tube collects the residual light and sends it to the image converter.

The second specification in a night vision device’s model number is the front lens diameter. The larger it is, the more light the night vision device collects.

Depending on the model, there are different options to display the image.

Generates an invisible light which is detected by the night vision device. This makes it possible to see even in absolute darkness.

Protects the night vision device from bright light accidentally entering the optics.

The angular field of view visible with the night vision device.