Image Converters and Image Intensifiers for Military and Scientific Use

Since World War II, the infrared image converter tube used by the Armed Forces for night observation has been greatly improved. Recent developments in electronics have led to a number of improved image converter tubes sensitive to infrared or ultraviolet radiation, as well as image intensifier devices which will permit observation under starlight illumination with no projected radiation whatsoever. The devices described are of interest to astronomers, radiologists, and nuclear physicists, as well as to the military. Some of the devices have already been constructed while others face serious technological problems. The Corps of Engineers is supporting a program of research in this field to provide image intensifier systems for the Armed Forces.