An improved ferroelectric imaging system comprises a chopper, lens system, ferroelectric detector matrix, anistropic heat sink, switching matrix, temperature controlled heat sink, drive and read out electronics, video processor, and display. The chopper interrupts infrared energy emanating from a scene,...http://www.google.fr/patents/US4143269?utm_source=gb-gplus-shareBrevet US4143269 - Ferroelectric imaging system