Glossary Definition

Long-Wave Infrared (LWIR) Uncooled Thermal Cameras for Surveillance and Defense

LWIR (Long Wave Infrared Cameras) are the most common type of FLIR (Forward Looking Infrared) thermal infrared surveillance cameras as (LWIR) band from 7 to 14 microns (7,000nm–14,000nm) in wavelength is where terrestrial temperature targets emit most of their infrared energy and unlike cooled thermal cameras require no coolers or maintenance.  Infiniti optics LWIR cameras use the latest 12μm LWIR uncooled thermal sensors with resolutions of 384×288 up to 1280×1024 HD. Our LWIR Zen camera cores are 12μm pixel pitch provides 40% longer range and narrower field of compared to standard 17μm sensor and 25% further range than 15μm cooled INSB sensors while delivering a sensitivity of 0.05°C.  Long Wave Infrared cameras also offer 4x the penetration through humidity and fog compared to MWIR cameras and provide better images when the temperature is cold making LWIR cameras a better option than cooled thermal in a variety of applications. 

LWIR (Long Wave Infrared Cameras) are the most common type of FLIR (Forward Looking Infrared) thermal infrared surveillance cameras as (LWIR) operates on 7 to 14 microns (7,000nm–14,000nm) in wavelength where terrestrial temperature targets emit most of their infrared energy and unlike cooled thermal cameras require no coolers or maintenance.  Infiniti optics LWIR cameras use the latest 12μm LWIR uncooled thermal sensors with resolutions of 384×288 up to 1280×1024 HD.

Uncooled LWIR thermal imaging is more affordable than cooled MWIR thermal imaging, as the sensors have no moving parts eliminating the need for regular maintenance. Infiniti’s LWIR cameras have a reputation for industry leading performance as we pair our uncooled sensors with large aperture precision engineers GE lenses, allowing more thermal energy to reach the sensor, which  than further optimizes the image by applying out DICE dynamic image contrast enhancement to provide high contrast crisp images for long range detection recognition and identification.

Infiniti uses cutting-edge 12μm LWIR VOx  (vanadium oxide) uncooled thermal sensors with resolutions of 384×288 up to 1280×1024 HD. The 12μm pixel pitch provides a narrower field of view without changing the lens. This results in 40% longer range compared to standard 17μm sensors and 25% further range than 15μm sensors while delivering a sensitivity of 0.05°C.

These sensors are paired with precision-engineered germanium lenses from wide-angle to long-range views. Our lenses have large apertures of f/1.0–f/1.3 compared to the standard f/1.5–f/1.6, allowing up to 2.3 times more heat to reach the sensor. This results in higher sensitivity, sharper images, and longer ranges making LWIR one of the most cost-effective long-range imaging solutions. Infiniti offers some of the longest range LWIR cameras with a 410mm which is equivalent to a 580mm lens on a traditional 17μm LWIR camera and a 520mm on 15um MWIR Cooled camera.

Infiniti optics custom builds all types of EO/IR solutions beyond just MWIR/LWIR  and can offer systems as open frame modules (lens and sensor attached) or as complete integrated PTZ cameras with Visible and SWIR sensors for ultra long-distance day night imaging and threat detection even in complete darkness. 

For more information about LWIR and Thermal Infrared Night Vision Technology please see our Thermal Imaging page.

Full Glossary