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NIR

(Near InfraRed) See infrared wavelengths.



infrared wavelengths

Following are the infrared wavelength range divisions according to the International Commission on Illumination (CIE) and common subdivisions. See infrared.


   Major       Wavelength
   Division   (micrometers)

   IR-A        .7 - 1.4

   IR-B       1.4 - 3

   IR-C         3 - 1,000


                          Wavelength
   Common Subdivisions   (micrometers)

   NIR (Near IR)           .75 - 1.4
     Fiber optic telecom

   SWIR (Short WL IR)      1.4 - 3
     Fiber optic telecom

   MWIR (Mid WL IR)          3 - 8
     Heat seeking missles

   LWIR (Long LW IR)         8 - 15
     Thermal imaging
     Forward-looking IR systems (FLIR)

   FIR  (Far IR)            15 - 1,000
     Lasers, spectroscopy

   WL = wavelength





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