- diffraction grating
- A variety of filter composed of lined grooves in a thin layer of aluminum-copper alloy on a glass surface; used in spectrophotometers to disperse light into a spectrum. See monochromator.
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* * *a surface, usually glass or polished metal, that is ruled closely with fine parallel lines, grooves, or slits; used to separate the wavelengths of light in a spectroscope.
Medical dictionary. 2011.
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Diffraction grating — Diffraction Dif*frac tion, n. [Cf. F. diffraction.] (Opt.) The deflection and decomposition of light in passing by the edges of opaque bodies or through narrow slits, causing the appearance of parallel bands or fringes of prismatic colors, as by… … The Collaborative International Dictionary of English
diffraction grating — Grating Grat ing, n. [See 2d Grate.] 1. A partition, covering, or frame of parallel or cross bars; a latticework resembling a window grate; as, the grating of a prison or convent. [1913 Webster] 2. (Optics) A system of close equidistant parallel… … The Collaborative International Dictionary of English
diffraction grating — n. Optics a plate of glass or polished metal ruled with a series of very close, equidistant, parallel lines, used to produce a spectrum by the diffraction of reflected or transmitted light … English World dictionary
Diffraction grating — A very large reflecting diffraction grating. In optics, a diffraction grating is an optical component with a periodic structure, which splits and diffracts light into several beams travelling in different directions. The directions of these beams … Wikipedia
diffraction grating — Physics. a band of equidistant, parallel lines, usually more than 5000 per inch (2000 per centimeter), ruled on a glass or polished metal surface for diffracting light to produce optical spectra. Also called grating. [1865 70] * * * ▪ optics… … Universalium
diffraction grating — difrakcinė gardelė statusas T sritis Standartizacija ir metrologija apibrėžtis Optinis periodinės sandaros įtaisas difrakciniams spektrams gauti. atitikmenys: angl. diffraction grating vok. Beugungsgitter, n; Diffraktionsgitter, n rus.… … Penkiakalbis aiškinamasis metrologijos terminų žodynas
diffraction grating — difrakcinė gardelė statusas T sritis fizika atitikmenys: angl. diffraction grating vok. Beugungsgitter, n; Diffraktionsgitter, n rus. дифракционная решётка, f pranc. réseau de diffraction, m … Fizikos terminų žodynas
diffraction grating — noun Date: 1867 grating 3 … New Collegiate Dictionary
diffraction grating — noun optical device consisting of a surface with many parallel grooves in it; disperses a beam of light (or other electromagnetic radiation) into its wavelengths to produce its spectrum • Syn: ↑grating • Hypernyms: ↑optical device • Hyponyms:… … Useful english dictionary
diffraction grating — noun a plate of glass or metal ruled with very close parallel lines, producing a spectrum by diffraction and interference of light … English new terms dictionary