Cov tsom iav IR zoom feem ntau yog siv rau hauv cov chaw sab nraum zoov dav dav nrog lub hom phiaj kom nce qhov ntev ntawm qhov muag kom tau txais kev ntes ntev. Vim tias qhov ntev ntawm qhov muag tuaj yeem hloov pauv thaum lub sijhawm ua haujlwm, qhov tseem ceeb ntawm qhov chaw tuaj yeem zoom rau hauv thiab saib xyuas, yog li muab lub kaw lus saib xyuas zoo dua. Nrog rau kev txhim kho thiab kev txhim kho tas mus li ntawm kev lag luam kev ruaj ntseg thiab cov khoom siv sab nraum zoov, cov tsom iav zoom tau siv rau hauv ntau yam lag luam thiab cov teb xws li txoj kev loj, txoj kev tsheb ciav hlau thiab choj, kev saib xyuas ntug dej hiav txwv thiab ciam teb, thiab ntau lwm yam xwm txheej.
Wavelength tau tsom mus rau kev muab cov khoom siv kho qhov muag siab rau 20 xyoo