Israel touts new naval capabilities

TEL AVIV, Israel, March 19 (UPI) -- The Israeli navy is touting growing capabilities to counter regional naval threats.

Belgium receives first NH90

AIX EN PROVENCE, France, Jan. 3 (UPI) -- NHIndustries of France recently delivered the first of eight twin-engine NH90 tactical transport helicopters ordered by Belgium.

Army contracts for more SG-FLIR kits

MCKINNEY, Texas, Feb. 24 (UPI) -- The U.S. Army has modified a contract with Raytheon Co. for the company to provide additional infrared-sensor systems for ground combat.

DRS to make SGF SADA II units for Raytheon

PARSIPPANY, N.J., April 3 (UPI) -- U.S. company DRS Technologies Inc. has won two Raytheon contracts to make SADA II units for infrared imaging systems.

LITENING equipped with new FLIR sensor

ROLLING MEADOWS, Ill., Sept. 5 (UPI) -- Northrop Grumman said Wednesday its new advanced targeting pod will have a new FLIR detection sensor

U.S. boosts F/A-18 infrared capability

MCKINNEY, Texas, July 12 (UPI) -- The targeting capabilities of the U.S. F/A-18 attack jet are being upgraded to better accommodate standoff and precision weapons.

U.S. Army stocks up on night-vision gear

NEW YORK, June 23 (UPI) -- The U.S. Army this week awarded contracts totaling $26 million to DRS Technologies for sights that enable infantry troops and vehicle crews to see as well as po

DRS bags contract for U.S. recon project

NEW YORK, April 20 (UPI) -- DRS Technologies has received a $26 million contract to provide subsystems for the U.S. Army's Long Range Advanced Scout Surveillance System.
Forward Looking Infrared

Forward looking infrared (FLIR) is an imaging technology that senses infrared radiation.

Since FLIRs use detection of thermal energy to create the "picture" assembled for the video output, they can be used to help pilots and drivers steer their vehicles at night, and in fog, or detect warm objects against a cold background when it is completely dark (such as a cloudy, moonless night). The wavelength of infrared that FLIRs detects differs significantly from that of Night vision, which operates in the visible light and near infrared ranges (0.4 to 1.0 micrometres).

There are two basic ranges of infrared; long-wave infrared and medium-wave infrared. The long-wave infrared (LWIR) cameras, sometimes called "far infrared", operate at 8 to 12 micrometre and can see heat such as hot engine parts or human body heat a few miles away, but longer distance viewing is made more difficult because the infra-red light is absorbed, scattered and refracted by the air and water vapor. Some long-wave FLIRs require their detector to be cryogenically cooled, although moderately sensitive FLIRs are produced that do not require cryogenic cooling.

This article is licensed under the GNU Free Documentation License.
It uses material from the Wikipedia article "Forward Looking Infrared."
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