(from the article `warning system`) The sniperscope, an early device that used infrared illumination and an infrared viewer, has been largely replaced by the image intensifier and by ...
Found on
http://www.britannica.com/eb/a-z/s/114
Originally a sniperscope was a rifle sight incorporating a periscope (known during the Great War as a periscope rifle), which allowed the weapon to be aimed by a soldier under cover. Now the sniperscope has changed to a telescopic rifle sight incorporating an image intensifier so that it can be aimed in the dark.
Found on
http://www.probertencyclopaedia.com/browse/FS.HTM
No exact match found.
