There are many: infrared: TV, DVD, VCD infrared receiver and remote control, air conditioning, infrared light wave oven, infrared camera UV: UV disinfection cabinet, UV disinfection lamp.
Infrared (Infrared, IR) is the frequency between the microwave and visible light between the electromagnetic waves, is the electromagnetic spectrum in the frequency of 0.3THz ~ 400THz, corresponding to the vacuum wavelength of 1mm ~ 750nm radiation in general. It is an invisible light with a lower frequency than red light. The English name for infrared is Infrared, where infra- means "below, under".
In physics, infrared light (and other types of electromagnetic waves) can be generated by anything above absolute zero (0K, or -273.15 degrees Celsius). Modern physics calls this blackbody radiation (thermal radiation).
Medical infrared can be divided into two categories: near-infrared and far-infrared. Infrared has a thermal effect, and most molecules can occur with the phenomenon of *** vibration, the light energy (energy of electromagnetic waves) into molecular energy (heat), the sun's heat is mainly through the infrared radiation to the earth.
In the electromagnetic spectrum, located outside the red light, the frequency is lower than visible light, higher than the microwave radiation is called infrared (located outside the violet, the frequency is higher than visible light, lower than the X-ray radiation is called ultraviolet), infrared invisible to the naked eye, belonging to the invisible light.