THERMAL INFRARED
type: Concept
in scheme: sciencekeywords
definition: Thermal infrared Infrared radiation which has a wavelength between 3.0 μm and 100 μm. At normal environmental temperatures objects emit infrared between these wavelengths; hotter objects, such as fires, emit infrared at wavelengths shorter than thermal infrared. Compare REFLECTED INFRARED.

INFRARED WAVELENGTHS
type: Concept