What is LWIR (Long-Wave Infrared)?

Glossary Definition

Long-wave infrared or LWIR is a subset of the infrared band of the electromagnetic spectrum, covering the wavelengths ranging from 8µm to 14µm (8,000 to 14,000nm). This is the radiant heat that uncooled thermal imaging cameras see.

Uncooled LWIR thermal imaging can be more affordable than cooled MWIR thermal imaging, as the sensors require less complex components and less ongoing maintenance. Infiniti’s LWIR camera systems boast better images than most of our industry-leading competitors as we pair our uncooled sensors with large aperture Germanium lenses, allowing more thermal energy to reach the sensor, which results in a cleaner and sharper image.

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