the luminous flux in lumens emitted per unit solid angle by a light source, measured in candles.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
How to use luminous intensity in a sentence
The sky in the East was soft with that luminous intensity, as of a melted sapphire, that comes just before the dawn.Orpheus in Mayfair and Other Stories and Sketches | Maurice Baring
The luminous intensity of the oxyhydrogen lime-light as used in practice was generally from 200 to 400 candle-power.
Their luminous intensity and illuminating value became units just as the foot was arbitrarily adopted as a unit of length.
Rumford and also Fresnel devised multiple-wick burners, thus increasing the luminous intensity.
For this reason a red light would have a greater range than a blue light of the same luminous intensity.
British Dictionary definitions for luminous intensity
a measure of the amount of light that a point source radiates in a given direction. It is expressed by the luminous flux leaving the source in that direction per unit of solid angle: Symbol: I v
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 luminous intensity
The luminous flux per unit solid angle (per steradian), as measured in a given direction relative to a light source. Its unit is the candela. See also luminance.
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