luminous intensity

American  

noun

Optics.

1. the luminous flux in lumens emitted per unit solid angle by a light source, measured in candles.

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luminous intensity British  

noun

1.  Iv.  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

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luminous intensity Scientific  

1. 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.

2. See also luminance

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Example Sentences

The standard unit of intensity of light is the candela, which is approximately the luminous intensity of a one common candle.

From Textbooks • Jun. 9, 2022

Wave amplitude is perceived as luminous intensity, or brightness.

From Textbooks • Jun. 9, 2022

Ms. Jones is an actress of luminous intensity.

From New York Times • Jul. 17, 2018

All writers have a toolbox, and usually in that toolbox one implement glows with more luminous intensity than the rest.

From Slate • Feb. 5, 2016

As an ordinary practical result, these lamps, working with 50 volts and 1.15 amperes, give a luminous intensity of 20 candles, or the equivalent in luminous spherical intensity of 1.1 Edison A lamps.

From Scientific American Supplement, No. 488, May 9, 1885 by Various