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

First Known Use of Fresnel lens

1865, in the meaning defined above

History and Etymology for Fresnel lens

Augustin J. Fresnel

Keep scrolling for more

Learn More about Fresnel lens

Share Fresnel lens

Statistics for Fresnel lens

Look-up Popularity

Time Traveler for Fresnel lens

The first known use of Fresnel lens was in 1865

See more words from the same year

More from Merriam-Webster on Fresnel lens

See words that rhyme with Fresnel lens

Comments on Fresnel lens

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

WORD OF THE DAY

a generally accepted meaning of a word

Get Word of the Day daily email!

Test Your Vocabulary

Great Scrabble Words—A Quiz

  • scrabble-tiles-that-read-scrabble-quiz
  • Which of the following Q-without-U words means the number five in cards or dice?
True or False

Test your knowledge - and maybe learn something along the way.

TAKE THE QUIZ
Word Winder's CrossWinder

Test Your Knowledge - and learn some interesting things along the way.

TAKE THE QUIZ

Love words? Need even more definitions?

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