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Infrareid (IR) is inveesible radiant energy, electromagnetic radiation wi langer wavelengths nor those o veesible licht, extendin frae the nominal reid edge o the veesible spectrum at 700 nanometers (frequency 430 THz) tae 1 mm (300 GHz)[1] (althou fowk can see infrareid up tae at least 1050 nm in experiments[2][3][4][5]).

References[eedit | eedit soorce]

  1. Liew, S. C. "Electromagnetic Waves". Centre for Remote Imaging, Sensing and Processing. Retrieved 2006-10-27. 
  2. Sliney, David H.; Wangemann, Robert T.; Franks, James K.; Wolbarsht, Myron L. (1976). "Visual sensitivity of the eye to infrared laser radiation". Journal of the Optical Society of America. 66 (4): 339–341. doi:10.1364/JOSA.66.000339. (Subscription required (help)). The foveal sensitivity to several near-infrared laser wavelengths was measured. It was found that the eye could respond to radiation at wavelengths at least as far as 1064 nm. A continuous 1064 nm laser source appeared red, but a 1060 nm pulsed laser source appeared green, which suggests the presence of second harmonic generation in the retina. 
  3. Lynch, David K.; Livingston, William Charles (2001). Color and Light in Nature (2nd ed.). Cambridge, UK: Cambridge University Press. p. 231. ISBN 978-0-521-77504-5. Retrieved 12 October 2013. Limits of the eye's overall range of sensitivity extends from about 310 to 1050 nanometers 
  4. Dash, Madhab Chandra; Dash, Satya Prakash (2009). Fundamentals Of Ecology 3E. Tata McGraw-Hill Education. p. 213. ISBN 978-1-259-08109-5. Retrieved 18 October 2013. Normally the human eye responds to light rays from 390 to 760 nm. This can be extended to a range of 310 to 1,050 nm under artificial conditions. 
  5. Saidman, Jean (15 May 1933). "Sur la visibilité de l'ultraviolet jusqu'à la longueur d'onde 3130". Comptes rendus de l'Académie des sciences (in French). 196: 1537–9.  Unkent parameter |trans_title= ignored (help)