Laser fence

A laser fence is a mechanism to detect objects passing the line of sight between the laser source and the detector.[1] Stronger lasers can potentially be used to injure someone or something passing the laser beam (see mosquito laser[2]).

Sometimes laser fences are used in fiction with the ability to stop intruders by blocking or injuring them. It is a concept used frequently in videogames.[3] The concepts of these fictional fences can be compared to other concepts like tractor or repulsor beams.

Notes

  1. ↑ http://www.freepatentsonline.com/3825916.html accessed 26 Jan 2011
  2. ↑ Guth, Robert A (2009). "Rocket Scientists Shoot Down Mosquitoes With Lasers". Wall St. Journal.
  3. ↑ Laser Fence (video game concept)