FLIR Systems is the world leader in the design, manufacturing and marketing of thermal imaging systems for a wide variety of commercial, industrial and government applications. FLIR Systems' thermal imaging systems use state-of-the-art infrared imaging technology that detects infrared radiation _ or heat. Based on detected temperature differences, thermal imaging cameras can create a crisp image. Complicated algorithms make it also possible to read correct temperature values from this image. FLIR designs and manufactures all the critical technologies inside their products, including detectors, electronics, and special lenses themselves.