lumens

lumens
lu·men || 'luːmən n. unit for measuring the rate at which light is transmitted (Optics); cavity, hollow space (Anatomy, Botany)

English contemporary dictionary. 2014.

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  • Lumens — Lumen Lu men, n.; pl. L. {Lumina}, E. {Lumens}. [L., light, an opening for light.] 1. (Photom.) (a) A unit of illumination, being the amount of illumination of a unit area of spherical surface, due to a light of unit intensity placed at the… …   The Collaborative International Dictionary of English

  • Lumens/Watt — (LPW / lpw)   A measure of the efficacy (efficiency) of lamps. It indicates the amount of light (lumens) emitted by the lamp for each unit of electrical power (Watts) used.   U.S. Dept. of Energy, Energy Information Administration s Energy… …   Energy terms

  • Lumens — Lumen Cette page d’homonymie répertorie les différents sujets et articles partageant un même nom …   Wikipédia en Français

  • Lm/ft2 — lumens per square foot …   Medical dictionary

  • Lm/m2 — lumens per square meter …   Medical dictionary

  • Lm/W — lumens per watt …   Medical dictionary

  • Lpw — lumens per watt …   Medical dictionary

  • lumen — {{hw}}{{lumen}}{{/hw}}s. m. inv. (fis.) Unità di flusso luminoso, corrispondente al flusso emesso da una sorgente puntiforme avente l intensità luminosa di una candela; SIMB. lm …   Enciclopedia di italiano

  • Lm/ft2 — • lumens per square foot …   Dictionary of medical acronyms & abbreviations

  • Lm/m2 — • lumens per square meter …   Dictionary of medical acronyms & abbreviations

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