LWIR  Long Wave Infra Red (wavelength range of 8 to 12 μm)
 MWIR  Mid Wave Infra Red (wavelength range of 3 to 5 μm)
 NIR  Near Infra Red (wavelength range of 0.75 to 1 μm)
 SWIR  Short Wave Infra Red (wavelength range of 0.9 to 1.7 μm, extends to 2.5 μm)

Reference:
1. SI Factors
2. Microwave Frequency Band Classification
3. Frequency Electromagnetic Spectrum


Last Revised on: November 17th, 2018