chromatic aberration

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 theory.'' --Burke. [1913 Webster]

2. A partial alienation of reason. ``Occasional aberrations of intellect.'' --Lingard. [1913 Webster]

Whims, which at first are the aberrations of a single brain, pass with heat into epidemic form. --I. Taylor. [1913 Webster]

3. (Astron.) A small periodical change of position in the stars and other heavenly bodies, due to the combined effect of the motion of light and the motion of the observer; called {annual aberration}, when the observer's motion is that of the earth in its orbit, and daily or {diurnal aberration}, when of the earth on its axis; amounting when greatest, in the former case, to 20.4'', and in the latter, to 0.3''. {Planetary aberration} is that due to the motion of light and the motion of the planet relative to the earth. [1913 Webster]

4. (Opt.) The convergence to different foci, by a lens or mirror, of rays of light emanating from one and the same point, or the deviation of such rays from a single focus; called {spherical aberration}, when due to the spherical form of the lens or mirror, such form giving different foci for central and marginal rays; and {chromatic aberration}, when due to different refrangibilities of the colored rays of the spectrum, those of each color having a distinct focus. [1913 Webster]

5. (Physiol.) The passage of blood or other fluid into parts not appropriate for it. [1913 Webster]

6. (Law) The producing of an unintended effect by the glancing of an instrument, as when a shot intended for A glances and strikes B. [1913 Webster]

Syn: Insanity; lunacy; madness; derangement; alienation; mania; dementia; hallucination; illusion; delusion. See {Insanity}. [1913 Webster]


The Collaborative International Dictionary of English. 2000.

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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 — 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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