achromatic lens
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.
Also called
achromat.
Compare
crown lens,
flint glass.
Origin of achromatic lens
probably earlier than 1860–65
Words nearby achromatic lens
achromasia,
achromat,
achromate,
achromatic,
achromatic colour,
achromatic lens,
achromatic objective,
achromatic prism,
achromatic vision,
achromaticity,
achromatin
Medical definitions for achromatic lens
achromatic lens
n.
A combination of lenses made of different glass, used to produce images free of chromatic aberrations.