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photo:thermal_imaging [2021/09/03 13:47]
gary1 [Introduction]
photo:thermal_imaging [2021/09/03 16:12] (current)
gary1 [Introduction]
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 =====Introduction===== =====Introduction=====
   ***near IR night vision cameras** are very different to thermal imagers and detect reflected near IR light in wavelengths shorter than 1µm (eg. 850 or 940nm IR lamps) or heat sources 250-500degC which give heat off in this wavelengths   ***near IR night vision cameras** are very different to thermal imagers and detect reflected near IR light in wavelengths shorter than 1µm (eg. 850 or 940nm IR lamps) or heat sources 250-500degC which give heat off in this wavelengths
-    * see [[:australia:night_vision]]+    * see [[:australia:nearIR_night_vision]]
   *thermal imaging cameras do NOT use IR lamps for imaging but detect the longer //long wave// //mid-IR// wavelengths (usually 7-14µm) that are given off by objects and animals with the wavelength dependent upon the object's temperature and use a [[https://en.wikipedia.org/wiki/Microbolometer|microbolometer]]    *thermal imaging cameras do NOT use IR lamps for imaging but detect the longer //long wave// //mid-IR// wavelengths (usually 7-14µm) that are given off by objects and animals with the wavelength dependent upon the object's temperature and use a [[https://en.wikipedia.org/wiki/Microbolometer|microbolometer]] 
   *these microbolometer arrays are commonly found in two sizes, 320×240 pixels or less expensive 160×120 pixels hence the images are very low resolution, but the ideal is the much more expensive 640x480 pixel sensors   *these microbolometer arrays are commonly found in two sizes, 320×240 pixels or less expensive 160×120 pixels hence the images are very low resolution, but the ideal is the much more expensive 640x480 pixel sensors
photo/thermal_imaging.txt · Last modified: 2021/09/03 16:12 by gary1