Noun
LWIR (uncountable)
Abbreviation of longwave infrared or long-wavelength infrared radiation.
As you will note from the plot set out below, only about 17% of LWIR can penetrate as deep as 100 microns, and 60% is absorbed within 3 microns. Source: Internet
The near infrared (NIR) window lies just out of the human vision, as well as the Medium Wavelength IR (MWIR) window, and the Long Wavelength or Far Infrared (LWIR or FIR) window, although other animals may experience them. Source: Internet
The potential technologies evaluated were Long-Wave Infrared (LWIR), Differential Scattering (DISC), and Ultraviolet Laser Induced Fluorescence (UV-LIF). Source: Internet