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What is the primary function of a Fresnel lens?

  • Extend lighthouse visibility

  • Magnify small objects

  • Project images on a screen

  • Correct vision problems

Answer

Fresnel lenses were invented by Augustin-Jean Fresnel to extend the visibility of lighthouses, helping save countless lives at sea. The lenses use a combination of reflection and refraction to focus light more efficiently.
Shedding Light on Augustin-Jean Fresnel: The Brilliant Mind Behind Modern Optics

Shedding Light on Augustin-Jean Fresnel: The Brilliant Mind Behind Modern Optics

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