Nightvision

Night Vision When a soldier can pinpoint a target in the middle of the night with no visible light to the eye it provides a great advantage over the enemy target. Being able to see in the dark can also come in handy for non-military purposes. Night vision devices come in two basic forms: thermal imaging systems and image enhancement systems. Thermal imaging systems create various types of images from the heat given off by …

…user of the NVD looks at the other side of this plate. This is the same process that's used to turn electrons in your TV or computer monitor into the image you see. What's really amazing is that new materials in the cathode and micro channel plate mean that modern NVDs allow people to see in situations where it appears to the naked eye as if there's not a trace of light to be seen.