Far Infrared Emission Rate Stability
Infrared generally refers to invisible light having a wavelength of 0.75μm-1,000 μm, and far infrared light to light having a wavelength of 4μm-1,000μm. General visible light has five basic characteristics : It is radiant, direct, reflective, refractive, and penetrative, while far infrared light also has a sixth characteristic: resonant absorption. When the far-infrared wavelength frequency is the same as the vibration frequency of the material molecules, resonance absorption occurs. This absorbed energy enhances the vibration of molecules and generates heat due to friction -- the so-called "warm effect."
Most of the organic compounds on the earth have infrared absorption wavelengths between 6μm-12μm. The wavelength of radiation between 8μm and 14μm is the best for organic compounds. For humans, the far-infrared radiation wavelength is significant at 5 μm-14 μm.
The far infrared emission test verification specification is in the wavelength range of 5μm-14μm. Its stable average emissivity exceeds more than 0.80, which meets the eligibility criteria.