High Quality Content by WIKIPEDIA articles! Forward looking infrared (FLIR) is an imaging technology that senses infrared radiation. Since FLIRs use detection of thermal energy to create the "picture" assembled for the video output, they can be used to help pilots and drivers steer their vehicles at night, and in fog, or detect warm objects against a cold background when it is completely dark (such as a cloudy, moonless night). The wavelength of infrared that FLIRs detects differs significantly from that of night vision, which operates in the visible light and near infrared ranges (0.4 to 1.0 micrometres). FLIRs, such as the AN/AAQ-26, are often used in naval vessels, fixed-wing aircraft, helicopters, and armored fighting vehicles. In warfare, they have three large advantages. First, the imager itself is nearly impossible for the enemy to detect, as it detects energy that's already there and doesn't have to send out any energy of its own. Second, it sees heat, which is hard to camouflage. Thirdly, FLIR systems can see through smoke, fog, haze, and other atmospheric obscurants better than a visible light camera can.

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