Silent Sentinel - The light Spectrum

The light Spectrum

Understanding the light spectrum

  • Infrared wavelengths are longer than visible light but shorter than microwaves.
  • Radiated heat that can’t be seen by our eyes but can be sensed by our skin.
  • All objects emit infrared radiation down to a temperature of -460° F.
  • The intensity depends on the temperature and a surface property termed “emissivity”.

Light Spectrum