| 单词 | illuminance |
| 释义 | illuminance[ ih-loo-muh-nuhns ] / ɪˈlu mə nəns / noun Optics.illumination (def. 6). Origin of illuminanceFirst recorded in 1940–45; illumin(ate) + -ance Words nearby illuminanceill-timed, ill-treat, illude, illume, illuminable, illuminance, illuminant, illuminate, illuminati, illuminating, illumination Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020 British Dictionary definitions for illuminanceilluminance / (ɪˈluːmɪnəns) / nounthe luminous flux incident on unit area of a surface. It is measured in luxSymbol: E v Sometimes called: illumination Compare irradiance Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012 Scientific definitions for illuminanceilluminance [ ĭ-lōō′mə-nəns ] The luminous flux per unit area at any point on a surface exposed to incident light. It is measured in luxes. Also called illumination The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved. |
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