• Products
  • About Window Film
  • Benefits
  • Become A Dealer
  • About Us
  • National Accounts

The Electromagnetic Spectrum

Below is the portion of the electromagnetic spectrum that represents the energy from the sun, including ultraviolet, visible light and infrared. Each of these types of waves have their own characteristic wave length.

Visible light is found in the narrow range from 380nm to 780nm and is the only portion that is visible to the naked eye. Colors are different wavelengths of light within that range.

Ultraviolet is the shortest of sun’s energy waves. There are three types:

  • UV-C, little reaches the earth (100 – 280 nm)
  • UV-B*, causes skin cancer (280 – 320 nm)
  • UV-A*, causes wrinkles (320 – 380 nm)

    • * causes tanning

Infrared solar energy accounts for approximately 53 percent of the sun’s energy. Infrared is found in the range from 780nm to 2500nm. Above this range is known as thermal radiation and is the range from 2500nm to 1mm. Heat radiating from a fire or your central heating system is thermal radiation.

Bekaert Window film is designed to reflect the infrared heat waves and to filter out most of the ultraviolet radiation.