Infrared security cameras utilize infrared LED lights to capture information in low-light or no-light conditions, working by detecting infrared radiation or photons emanating from heat-emitting objects.
The infrared security camera system then converts the photons into electrons, which are subsequently processed into images that can be viewed on phones or monitors.
In well-lit environments, infrared night vision security cameras can produce color images. However, as darkness falls, the camera’s infrared LEDs are automatically triggered, and the IR cut filter engaged over the image sensor. This results in the capture of black and white images.
Thanks to their working principle, infrared security cameras are capable of functioning effectively in foggy or rainy weather conditions, which can reduce visibility and result in blurry images for non-infrared security cameras.