- There are two general kinds of night vision. Thermal imaging uses infrared technology, and light amplification uses existing ambient light.
- Thermal imaging gathers all surrounding infrared light and creates a picture according to the light's temperature patterns. This "thermogram" is then converted and processed into a clear, recognizable image.
- Light amplification takes all ambient light, such as starlight, moonlight, and infrared light, and converts it into electrical energy and then back into light, allowing you to see in near-total darkness.
- Night-vision binoculars do possess some magnification qualities, but you shouldn't depend on them for extreme distance-viewing or clarity. Their real function is to allow you to see a fair distance in low-lit conditions.
- Night vision rifle scopes allow for precision and stealth, even in the lowest light conditions. Some models can even shift from day to night vision in seconds.
- Some advantages to night-vision goggles are their small size and typically included head mounts. These allow for maneuverability and portability.
- Night-vision phosphor screens are colored green because the human eye can differentiate between different shades of green better than any other phosphor color.