chromatic aberration

[1] An enlargement of the focal spot caused in a cathode tube, by the differences in the electron velocity distribution through the beam.
[2] An enlargement of the focal spot caused in an optical lens system using white light, by the refractive index of the glass varying with the wavelength of the light, resulting in colored fringes surrounding the image.

Dictionary of automotive terms. 2015.

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  • Chromatic aberration — Chromatic Chro*mat ic, a. [L. chromaticus, Gr. ?, suited for color, fr. ?, ?, color; akin to ? color, ? skin, color of the skin.] 1. Relating to color, or to colors. [1913 Webster] 2. (Mus.) Proceeding by the smaller intervals (half steps or… …   The Collaborative International Dictionary of English

  • chromatic aberration — Aberration Ab er*ra tion, n. [L. aberratio: cf. F. aberration. See {Aberrate}.] 1. The act of wandering; deviation, especially from truth or moral rectitude, from the natural state, or from a type. The aberration of youth. Hall. Aberrations from… …   The Collaborative International Dictionary of English

  • chromatic aberration — n aberration caused by differences in the refraction of light at different frequencies * * * unequal deviation of light rays of different wavelengths passing through a refractive medium, resulting in fringes of color around the image produced;… …   Medical dictionary

  • chromatic aberration — n. a property of lenses that causes the various colors in a beam of light to be focused at different points, thus causing a margin of colors to appear around the edges of the image …   English World dictionary

  • Chromatic aberration — On top is corner detail in a photograph taken with a higher quality lens; bottom is a similar photograph taken with a wide angle lens showing severe visible lateral chromatic aberration. The effect is pronounced on the right side of the building… …   Wikipedia

  • chromatic aberration — Optics. the variation of either the focal length or the magnification of a lens system with different wavelengths of light, characterized by prismatic coloring at the edges of the optical image and color distortion within it. Also called… …   Universalium

  • chromatic aberration — spalvinė aberacija statusas T sritis fizika atitikmenys: angl. chromatic aberration vok. chromatische Aberration, f rus. хроматическая аберрация, f pranc. aberration chromatique, f …   Fizikos terminų žodynas

  • chromatic aberration — When using white light through a lens system, it is inevitable that different wave lengths (colours) are brought to a focus at slightly different points. As a consequence, there are chromatic aberrations in the image; good microscope objectives… …   Dictionary of molecular biology

  • chromatic aberration — noun an optical aberration in which the image has colored fringes • Hypernyms: ↑aberration, ↑distortion, ↑optical aberration …   Useful english dictionary

  • chromatic aberration — noun Date: 1831 aberration caused by the differences in refraction of the colored rays of the spectrum …   New Collegiate Dictionary

  • chromatic aberration — noun an optical aberration, in which an image has coloured fringes, caused by differential refraction of light of different wavelengths …   Wiktionary

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