Monday, 23 June 2014 16:21



Additional Info

  • ID Code: L6-55
  • Purpose: Show an application of the Fresnel lens.
  • Description: A "Fresnel flashlight" has a Fresnel lens covering the central area of the glass, causing light which would normally spread out over a large cone to be focused into a nearly parallel beam. Unfortunately, when you compare the light output of this Fresnel flashlight with that of a normal flashlight it really doesn't seem brighter. But it's a nice idea for peddling flashlights.
  • Availability: Available
Read 1499 times Last modified on Monday, 28 September 2020 14:35
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