Non-ionizing electromagnetic radiation has a large range of frequencies.
Extremely low frequencies, such as the electricity network frequency (ELF) radio frequency (RF) Radio Frequencies. And higher frequencies of non-ionizing radiation that belong to the light. These frequencies start from the Infrared, goes through the Visible Spectrum and at the end there are the ultraviolet frequencies.
We will focus on a relatively narrow field, and it is the infrared.
Common uses in the field of infrared are made in everyday life, in computers such as the mouse, most television signs, lasers, medical imaging, and in the field of electricity and thermal imaging.