Fresnel lens

noun
Fres·​nel lens | \ ˈfrez-nəl- How to pronounce Fresnel lens (audio) , frā-ˈnel- How to pronounce Fresnel lens (audio) \

Definition of Fresnel lens

: a lens that has a surface consisting of a concentric series of simple lens sections so that a thin lens with a short focal length and large diameter is possible and that is used especially for spotlights

First Known Use of Fresnel lens

1865, in the meaning defined above

History and Etymology for Fresnel lens

Augustin J. Fresnel

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Time Traveler for Fresnel lens

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The first known use of Fresnel lens was in 1865

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Cite this Entry

“Fresnel lens.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/Fresnel%20lens. Accessed 25 Jun. 2022.

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