UV Rays and Infrared Rays

UV RAYS AND INFRARED RAYS

Sources for Ultra violet rays

  • Sun light.
  • Most harmful UV is absorbed by the atmosphere and this depends on altitude.
  • Fluorescent lamps.
  • Electric arc welding which can damage the cornea of the eye.
  • Germicidal lamps.

Effects of Ultra violet radaiation

  • Ultraviolet rays kill bacterial and other infectious agents.
  • High dose can cause sun burn and there is increased risk of skin cancer.

Effects of Infra red radiation

  • Can damage –cornea, iris, retina and lens of the eye (glass workers –“glass blower’s cataract”)
Last modified: Friday, 22 April 2011, 5:44 AM