| luminous flux n. The rate of flow of light per unit of time, especially the flux of visible light expressed in lumens. |
luminous flux
n
(Mathematics & Measurements / Units) a measure of the rate of flow of luminous energy, evaluated according to its ability to produce a visual sensation. For a monochromatic light it is the radiant flux multiplied by the spectral luminous efficiency of the light. It is measured in lumens. Symbol Φv
luminous flux (l  m -ns) A measure of the radiant power of light emitted from a source without regard for the direction in which it is emitted. It is measured in lumens. See also luminous intensity. |
ThesaurusLegend: Synonyms Related Words Antonyms
| Noun | 1. | luminous flux - the rate of flow of light energy radiant flux - the rate of flow of radiant energy (electromagnetic waves) |
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