Huygens eyepiece
noun
an eyepiece consisting of two plano-convex lenses, the plane sides of which both face the eye.
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Huygens eyepiece
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Huygens' eyepiece
Huygens' eyepiecenounphysics a telescope eyepiece consisting of two planoconvex lenses separated by a distance equal to half the sum of their focal lengths, which are in the ratio of three to one, and oriented so that their curved surfaces face the incident light
Huygens eyepiece
Americannoun
Optics.
Huygens' eyepiece
British
/ ˈhaɪɡənz /
noun
Etymology
Origin of Huygens eyepiece
First recorded in 1830–40; named after C. Huygens
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
The Huygens eyepiece consists of two plano-convex lenses whose focal lengths are in the ratio of three to one.
From Pleasures of the telescope An Illustrated Guide for Amateur Astronomers and a Popular Description of the Chief Wonders of the Heavens for General Readers by Serviss, Garrett Putman
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
