fresnel lens

fres·nel lens

F f

Definitions of fresnel lens words

noun fresnel lens Optics. a large lens with a surface of concentric grooves of prismatic profile, used in automobile headlights, searchlights, spotlights, etc. 1
noun fresnel lens a lens consisting of a number of smaller lenses arranged to give a flat surface of short focal length 0
noun fresnel lens a thin optical lens of many concentric rings, having the properties of a much thicker and heavier lens: used in cameras, lighthouse beacons, etc. 0
noun fresnel lens The hollow cylindrical lens used in the Fresnel lantern. 0

before 1840

One of the 33% newest English words

First recorded in 1840-50; See origin at fresnel

noun

adjective

verb

adverb

pronoun

preposition

conjunction

determiner

exclamation

This term is known only to a narrow circle of people with rare knowledge. Only 27% of English native speakers know the meaning of this word.

According to our data most of word are more popular. This word is almost not used. It has a much more popular synonym.

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