What is Night Vision and how does it work?
Night vision allows the user to see objects and surroundings even under the darkest conditions. Simply put the unit collects ambient light, or uses light from an infrared illuminator, the intensifier tube electronically amplifies this light and projects a green image on the screen for the user to see. 1. How does night vision work? The objective lens collects light that you cannot see with your naked eye and focuses it on the image intensifier. The intensifier amplifies the light many hundred or thousand times. 2 a. What is the difference between Generation 1, 2, and 3 night vision devices? Night Vision devices of all generations are evaluated based on a universal rating system. The three main criteria are System Light Gain, System Resolution, and Photosensitivity. – System light gain evaluates how many times a night vision unit is amplifying the available light. – System Resolution reveals information regarding the sharpness and clarity of the amplified image. – Photosensitivity deter
