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 lines or bars, esp. lines ruled on a polished surface, used for producing spectra by diffraction; -- called also {diffraction grating}.

Note: Gratings have been made with over 40,000 such lines to the inch, but those with a somewhat smaller number give the best definition. They are used, e. g., to produce monochromatic light for use in optical instruments such as spectrophotometers. [Webster 1913 Suppl.]

3. pl. (Naut.) The strong wooden lattice used to cover a hatch, admitting light and air; also, a movable Lattice used for the flooring of boats. [1913 Webster]

The Collaborative International Dictionary of English. 2000.

Look at other dictionaries:

  • 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 — 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 — 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. * * * diffraction grating n …   Medical dictionary

  • 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

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