Infrared yog ib qho hluav taws xob nthwv dej uas muaj zaus ntawm microwave thiab pom lub teeb, nrog zaus ntawm 0.3THz txog 400THz, sib xws rau lub wavelength ntawm 1mm txog 750nm hauv lub tshuab nqus tsev, thiab yog lub teeb pom kev tsis pom nrog qhov tsawg dua. lub teeb liab. Npog cov hlua ntawm thermal tawg tawm los ntawm cov khoom ntawm chav tsev kub. Lub peev xwm nkag mus rau huab thiab huab cua muaj zog dua li qhov pom kev pom. Nws muaj ntau yam kev siv hauv kev sib txuas lus, kev tshawb nrhiav, kev kho mob, kev ua tub rog thiab lwm yam. Feem ntau hu ua infrared teeb. Qhov tiag infrared qhov muag pom kev hmo ntuj yog lub photomultiplier raj imaging, uas yog txawv kiag li ntawm lub hauv paus ntsiab lus ntawm lub tsom iav raj. Nws tsis tuaj yeem siv thaum nruab hnub, thiab nws kim heev thiab xav tau lub zog hluav taws xob los ua haujlwm.
Kev kho mob infrared feem ntau nyob ze infrared (NIR, IR-A DIN), high-frequency short-wave infrared (SWIR, IR-B DIN), nruab nrab zaus nruab nrab-yoj infrared (MWIR, IR-C DIN), qis- zaus ntev-yoj infrared (LWIR, IR-C DIN). Nyob ze-infrared lossis high-frequency luv-yoj infrared, nrog lub wavelength ntawm 1.5 μm rau 0.76 μm, nkag mus tob rau hauv tib neeg cov ntaub so ntswg, txog 5 mus rau 10 mm; nyob deb infrared los yog tsawg zaus ntev-yoj infrared, nrog ib tug wavelength ntawm 400 μm mus rau 1.5 μm, feem ntau yog absorbed los ntawm daim tawv nqaij superficial thiab hnav tam sim ntawd. Qhov tob ntawm kev nkag mus ntawm cov ntaub so ntswg yog tsawg dua 2 hli.
Tom qab infrared rays irradiate lub cev nto, ib feem ntawm nws yog reflected thiab lwm qhov yog absorbed los ntawm daim tawv nqaij. Lub degree ntawm daim tawv nqaij qhov kev xav ntawm infrared rays muaj feem xyuam rau cov mob ntawm pigmentation. Thaum irradiated nrog infrared rays nrog ib tug wavelength ntawm {{0}}.9 μm, daim tawv nqaij tsis pigmentation qhia txog 60 feem pua ntawm nws lub zog; thaum daim tawv nqaij nrog pigmentation qhia txog 40 feem pua ntawm nws lub zog. Thaum tsis tshua muaj zaus ntev-yoj infrared (wavelength saum 1.5μm) yog irradiated, feem ntau ntawm nws yog reflected thiab absorbed los ntawm daim tawv nqaij daim tawv nqaij, thiab qhov tob ntawm nkag mus rau ntawm daim tawv nqaij tsuas yog 0.05-2 hli, yog li nws tsuas tuaj yeem cuam tshuam cov ntaub so ntswg ntawm daim tawv nqaij; high-frequency short-wave Infrared (nyob rau hauv ib lub wavelength ntawm 1.5 μm) thiab qhov ze-infrared ib feem ntawm lub teeb liab nkag mus rau hauv cov ntaub so ntswg tob, nrog rau qhov tob tob txog li 10 hli, thiab tuaj yeem cuam tshuam ncaj qha rau cov hlab ntsha, lymphatic hlab ntsha, cov hlab ntsha xaus thiab lwm cov ntaub so ntswg subcutaneous ntawm daim tawv nqaij.
Nyob rau hauv cheeb tsam infrared, qhov zoo tshaj plaws wavelength band rau tib neeg lub cev yog band range ntawm 14μm ~ 4μm, uas yog sib sau ua ke hu ua "fertility light" nyob rau hauv kev kho mob teb, vim hais tias lub infrared band muaj ib tug txhawb kev loj hlob ntawm kev loj hlob. lub neej. cov ntaub so ntswg, ntshav ncig muaj txiaj ntsig zoo heev, tuaj yeem txhim kho tib neeg kev tiv thaiv kab mob, ntxiv dag zog rau lub cev metabolism.