Fresnel lens

noun Fres·nel lens \ ˈfrez-nəl- , frā-ˈnel- \

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

Origin and Etymology of fresnel lens

Augustin J. Fresnel


Learn More about fresnel lens


Seen and Heard

What made you want to look up Fresnel lens? Please tell us where you read or heard it (including the quote, if possible).

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!