Night vision cameras are a type of security camera that uses infrared technology to capture images in low-light or no-light conditions. Unlike traditional security cameras, night vision cameras do not require a visible light source to produce an image. Instead, they use an infrared sensor to detect heat signatures. This allows night vision cameras to "see" in complete darkness. The infrared sensor converts the heat signature into an electrical signal, which is then converted into an image by the camera's imaging system. Night vision cameras typically have a shorter range than traditional security cameras, but they can still be used to provide night-time surveillance of a home or business.