LUMINESCENCE — On appelle luminescence l’émission de tout rayonnement électromagnétique visible, ultraviolet ou infrarouge, qui n’est pas d’origine purement thermique. Des phénomènes de luminescence sont connus depuis des milliers d’années; on en trouve des… … Encyclopédie Universelle
Luminescence — La luminescence est une émission de lumière dite « froide » par opposition à l incandescence qui elle est dite « chaude » : toute lumière est produite par le retour vers un état de moindre énergie des électrons excités et … Wikipédia en Français
luminescence — 1884, from L. lumen (gen. luminis) light (see LUMINOUS (Cf. luminous)) + ESCENCE (Cf. escence). Fluorescence and Phosphorescence Prof. E. Wiedmann has made a new study of these phenomena. He proposes the general name luminescence for evolutions… … Etymology dictionary
Luminescence — Lu mi*nes cence, n. [See {Luminescent}.] 1. (Physics) Any emission of light not ascribable directly to incandescence, and therefore occurring at low temperatures, as in phosphorescence and fluorescence or other luminous radiation resulting from… … The Collaborative International Dictionary of English
luminescence — Luminescence Люминесценция Излучение световых волн веществом, находящимся в электронно возбуждённом состоянии. В зависимости от того, является ли электронно возбуждённое состояние синглетным или триплетным, излучение света называется… … Толковый англо-русский словарь по нанотехнологии. - М.
luminescence — ► NOUN ▪ the emission of light by a substance that has not been heated, as in fluorescence and phosphorescence. DERIVATIVES luminescent adjective … English terms dictionary
luminescence — [lo͞o΄mə nes′əns] n. [< L lumen, LIGHT1 + ESCENCE] any giving off of light caused by the absorption of radiant or corpuscular energy and not by incandescence; any cold light; specif., fluorescence or phosphorescence occurring in various… … English World dictionary
luminescence — luminescent, adj. /looh meuh nes euhns/, n. 1. the emission of light not caused by incandescence and occurring at a temperature below that of incandescent bodies. 2. the light produced by such an emission. [1885 90; < L lumin (see LUMEN) +… … Universalium
luminescence — Emission of light from a body as a result of a chemical reaction. See bioluminescence. [L. lumen, light] * * * lu·mi·nes·cence .lü mə nes ən(t)s n the low temperature emission of light produced esp. by physiological processes (as in the firefl … Medical dictionary
luminescence — [[t]lu͟ːmɪne̱s(ə)ns[/t]] N UNCOUNT Luminescence is a soft, glowing light. [LITERARY] Lights reflected off dust covered walls creating a ghostly luminescence … English dictionary
