Definitions for chromatic aberration
This page provides all possible meanings and translations of the word chromatic aberration
Random House Webster's College Dictionary
the variation of either the focal length or the magnification of a lens system with different wavelengths of light.
Origin of chromatic aberration:
an optical aberration in which the image has colored fringes
an optical aberration, in which an image has coloured fringes, caused by differential refraction of light of different wavelengths
In optics, chromatic aberration is a type of distortion in which there is a failure of a lens to focus all colors to the same convergence point. It occurs because lenses have a different refractive index for different wavelengths of light. The refractive index decreases with increasing wavelength. Chromatic aberration manifests itself as "fringes" of color along boundaries that separate dark and bright parts of the image, because each color in the optical spectrum cannot be focused at a single common point. Since the focal length f of a lens is dependent on the refractive index n, different wavelengths of light will be focused on different positions.
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"chromatic aberration." Definitions.net. STANDS4 LLC, 2014. Web. 20 Dec. 2014. <http://www.definitions.net/definition/chromatic aberration>.