lux
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lux
the derived SI unit of illumination equal to a luminous flux of 1 lumen per square metre. 1 lux is equivalent to 0.0929 foot-candle.
Collins Discovery Encyclopedia, 1st edition © HarperCollins Publishers 2005
Lux
Lumens measured by the square yard or meter.
Illustrated Dictionary of Architecture Copyright © 2012, 2002, 1998 by The McGraw-Hill Companies, Inc. All rights reserved
lux
[ləks] (optics)
A unit of illumination, equal to the illumination on a surface 1 square meter in area on which there is a luminous flux of 1 lumen uniformly distributed, or the illumination on a surface all points of which are at a distance of 1 meter from a uniform point source of 1 candela. Symbolized lx. Also known as meter-candle.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
lux
The SI unit of illuminance equal to the illumination on a surface, all points of which are at a distance of 1 meter from a uniform point source of 1 candela; 1 lux is equal to 1 lumen per square meter (1 lm/m2).
McGraw-Hill Dictionary of Architecture and Construction. Copyright © 2003 by McGraw-Hill Companies, Inc.
The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.
LUX
a unit of illumination in the International System of Units. Symbols, Ik (Russian) and Ix (international). One lux is the illumination on a surface area of 1 sq m when the incident luminous flux of the radiation on it is equal to 1 lumen (1m); 1 Ix = 10-4 phot (the unit of illumination in the cgs system of units).
The Great Soviet Encyclopedia, 3rd Edition (1970-1979). © 2010 The Gale Group, Inc. All rights reserved.