Meaning Of The Word Etalon

Real Dictionary

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Etalon Meaning

Etalon Definition
Etalon Definition

What's The Definition Of Etalon?

etalon in American English
an optical instrument with two plane parallel reflecting surfaces, used for the precise measurement of distance or the wavelength of light
noun: an interferometer consisting of two glass plates that reflect approximately half of each ray of light incident upon them and that are separated by a small, fixed distance: used to compare wavelengths and to study atomic spectra

etalon in British English
noun: a device used in spectroscopy to measure wavelengths by interference effects produced by multiple reflections between parallel half-silvered glass or quartz plates

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