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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
From the M-W Editors
Origin and Etymology of fresnel lens
Augustin J. Fresnel
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See words that rhyme with Fresnel lens Britannica.com: Encyclopedia article about Fresnel lens
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