A forward looking infrared system in which the usual FLIR is augmented by the addition of active laser illumination in order to enhance the FLIR's capability to discern in a scene certain details, such as manmade objects, especially under conditions of thermal washout. The laser is coded, and appropriate...http://www.google.co.uk/patents/US3953667?utm_source=gb-gplus-sharePatent US3953667 - Passive and/or active imaging system
