OVERVIEW: Third Generation FLIR systems introduced advanced focal plane array detectors with higher resolution and sensitivity, delivering superior thermal imaging performance across military platforms from the 1990s through the 2010s.

GENERAL DESCRIPTION: 3rd generation FLIR systems utilized two-dimensional focal plane arrays (FPAs), often with dual-band sensing capabilities (MWIR and LWIR), cryogenic cooling, and onboard digital processing. These features enabled real-time, high-resolution thermal imagery with greater range, contrast, and accuracy for target detection, identification, and engagement. They were widely integrated into targeting pods, EO/IR turrets, and surveillance systems across air, land, and sea domains before being surpassed by modern multi-spectral and high-definition 4th generation sensors.

ROLE SUMMARY:
Category: Infrared Imaging Systems
Primary Use: Target acquisition, navigation, fire control, and ISR (Intelligence, Surveillance, Reconnaissance)
Function: Real-time high-resolution thermal imaging using cooled focal plane arrays
Platform: Fighter aircraft, attack helicopters, UAVs, tanks, warships
Integration: Fully integrated with modern fire-control, mission computers, and sensor fusion suites

See Specific information under [Sensors/EW] and [Properties] sections.

SOURCE:
Defense Acquisition University Publications
Military EO/IR Technology Journals