Infrared is used in night vision equipment when there is insufficient visible light to see. Night vision devices operate through a process involving the conversion of ambient light photons into electrons that are then amplified by a chemical and electrical process and then converted back into visible light. Infrared light sources can be used to augment the available ambient light for conversion by night vision devices, increasing in-the-dark visibility without actually using a visible light source. COUNT 3
QSN1 What sort of equipment uses the infrared spectrum in the absence of sufficient visible light? ANS1 night vision QSN2 What do night vision devices convert ambient light photons into? ANS2 electrons QSN3 Along with a chemical process, what type of process is used by night vision devices to convert infrared into visible light? ANS3 electrical