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achromatic lens

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noun Optics.
a system of two or more lenses that is substantially free from chromatic aberration and in which the lenses are made of different substances so that the focal length of the system is the same for two or three wavelengths of light.
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Also called achromat.

Origin of achromatic lens

Probably earlier than 1860–65
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2022

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Medical definitions for achromatic lens

achromatic lens

n.
A combination of lenses made of different glass, used to produce images free of chromatic aberrations.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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