TECHNOLOGY
SWIR imaging allows the crew of an armoured vehicle to look through haze, fog, sandstorms, snow and glass, providing them with optimal visibility. Typical applications for this SWIR camera technology can also be found in police surveillance, border control and security. In fire departments, for example, it can help crews detect objects or people even in very heavy smoke.
Nedinsco offers this new SWIR technology in the OTUS camera products. Depending on your applications, our specialists can advise you on the best optics, coatings, sensors and housing to ensure the best performance possible.
Shortwave infrared (SWIR) light is generally defined as light in the wavelength range of 1.0-2.5 µm. Unlike mid-wave infrared (MWIR) and long-wave infrared (LWIR), which is emitted by the object itself. SWIR resembles visible light in that photons are reflected or absorbed by an object, creating the strong contrast needed for high-resolution imaging. Starlight and background radiation (nightglow) are natural sources of SWIR and provide excellent illumination for outdoor night imaging.
Smoke, snow, fog, and certain materials such as glass and silicon are transparent, when imaging in SWIR. That means the atmospheric influence of fog and smoke disappears in the shortwave infrared (SWIR) spectrum. Although capturing images in the SWIR lacks the color content of the visible region, SWIR images -which are formed by light reflected from observed objects- can be interpreted as easily and directly as images in the visible region. A wide range of applications that would be difficult or impossible to perform with visible light are now possible with SWIR.
24-hour all-weather surveillance is a necessity for many military and emergency services. While thermal imaging can detect temperature differences, a SWIR camera can actually identify the object. Thermal imaging does not offer the resolution and range of imaging that is possible with a SWIR sensor. In a military conflict situation, it is critical to determine whether a threatening vehicle is a civilian truck or a military tank. SWIR can assist in this detection.
CMOS sensors are excellent devices to meet military needs, but these sensors are usually daylight sensors. A single SWIR camera can be used for both day and night imaging and can function throughout the duration of typical long day and night missions.
Imaging from day to night, and thus suitable for day/night missions
Viewing through fog, sandstorms, snow, haze and heavy smoke
Gunshot heat signature detection
Eyesafe laser detection
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