Meaning Of The Word Lumen

Real Dictionary

What's the definition of Lumen? Find Lumen meanings, definitions and more at the Real Dictionary online.

Lumen Meaning

Lumen Definition
Lumen Definition

What's The Definition Of Lumen?

lumen in American English
the basic unit used to measure the flow of light in the SI system, equal to the amount of light emitted through a solid angle of one steradian by a light source with the intensity of one candela (0.0015 watt)
noun: the unit of luminous flux, equal to the luminous flux emitted in a unit solid angle by a point source of one candle intensity

lumen in British English
noun: the derived SI unit of luminous flux; the flux emitted in a solid angle of 1 steradian by a point source having a uniform intensity of 1 candela

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