HIGH-SPEED SECTORIAL OR PANORAMIC SURVEILLANCE DEVICE WITHOUT APPARENT MOTION

摘要

The invention concerns a method for multiplexing several optical paths with parallel beams by using a periscope or a bar with parallel rotational surfaces (French patent No. 2739192). The invention is characterized by the use and proper arrangement of fixed catoptric or catadioptric systems so that they cover each an elementary field. The optical multiplexing of the different optical paths in accordance with the present invention enables to cover a large angular field, besides the elementary fields. The invention provides the advantage of being capable of covering a large angular field with good resolution at high speeds (some 10 Hertz) by using a single array of sensors. Additionally, said method enables to design sectorial and panoramic optronic surveillance systems with no apparent motion, thereby providing the additional benefit of discretion and stealth when it is used in the context of a military operation.