What is a Night Vision Camera?
A night vision camera, or night vision system, is an optical technology that permits observation and photography in extremely low-light or no-light conditions. These cameras are commonly used among the military, police, and other security forces, but civilians do use night vision for recreation and wildlife observation. Night vision is categorized into GEN-I, GEN-II, GEN-III, and GEN-III OMNI-VII technologies, depending on their sophistication. The most recent, GEN-III OMNI-VII, was developed in October 2007. Though these generation designations are set by the US military, they have been adopted by the civilian night camera community as a matter of convenience. There are two primary technologies used for a night vision camera. The first, and most common, is a photomultiplier tube, or “conventional night vision,” operating in the near-infrared frequency range, picking up light waves about 1 micrometer wide (human vision can only see light with a frequency between 0.4 and 0.7 micrometers
