achromatic lens

  1. 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.

Origin of achromatic lens

Probably earlier than 1860–65

Words Nearby achromatic lens Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

How to use achromatic lens in a sentence