UHerkel wayengumntu wokuqala ukufumana ubukho be-ray ye-infrared.

Kwangoko kuFebruwari 1800, wasebenzisa i-prism ukufunda i-vectum ebonakalayo. I-Herflel yafumanisa ukuba inokubeka i-thermometer ngaphandle kwesiphelo esibomvu sombonakalo kwaye ifunyanwe i-subtu engaziwayo engaziwayo, eyayishushu kunaso nasiphi na isibane esibonakalayo.

Namhlanje, sikubiza le mitha ingekho mthethweni "ye-infrared", efumaneka phakathi kokukhanya okubonakalayo kunye ne-microwave frequements ye-elektromagnetic wave spectrum wave spectrum wave spectrum wave. Inxalenye ye-Davelength ye-0.78 ~ 2.0 microns ibizwa ngokuba yi-infrared, kunye nenxalenye ye-suvelength ye-2.0 ~ i-1000 i-microns ibizwa ngokuba yi-thermal infrared. Xa i-infrared ray idluliselwa kumphezulu, iya kutsalwa ngokwamacandelo eSmosmossic (ngakumbi i-H2O, i-HO2, i-~), kwaye i-~-~ 12um ~ 12um bobabini Iibhendi zinendawo yokudluliselwa okuhle, eqhele eyaziwa njengefestile yemotasic. Uninzi lweengcinga ze-thermal lormal babukela ezi ntlobo zibini, zibala kwaye zibonise ukuhanjiswa kobushushu bezinto. Ukongeza, ngenxa yokwazi ukungena nokungena kweyona nto ingenayo kwinxalenye enkulu yezinto eziqinileyo nezinezolo, impatho yokucinga ye-thermal ye-thermal icinyiwe ikakhulu kukulinganisa amandla omthamo wento.