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20 January 1976 Handheld Thermal Viewer, AN/PAS-7
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The HHTV is a lightweight, handheld medium resolution, medium sensitivity, battery powered, passive in-frared thermal imaging system developed for use by reconnaissance and combat elements of the Army. It provides passive thermal surveillance, detection, recognition and observation of personnel, vehicles and buildings in total darkness, in daylight and in rain. It will also penetrate light fog, smoke and targets partly obscured by foliage or camouflage. It is composed of a viewer, a battery pack, a charger-adapter, a connecting cable, a carrying bag and transit case. An oscillating mirror is used to produce optical scanning of the scene by a linear array of 48 PbSe detectors in parallel producing a rectangular field of view. The detectors are thermoelectrically cooled by means of a 4 stage peltier cooler that maintains the detectors at 195°K.
© (1976) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
S. Staniloff and N. Diepeveen "Handheld Thermal Viewer, AN/PAS-7", Proc. SPIE 0062, Modern Utilization of Infrared Technology I, (20 January 1976);


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