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luminous efficiency

noun, Optics.
1.
the perceived brightness of light as a ratio of the total luminous flux to total radiant flux of the source; a measure of brightness obtained by dividing the source's luminous flux by the consumption of its energy.
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Based on the Random House Dictionary, © Random House, Inc. 2014.
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Examples from the web for luminous efficiency
  • Photometric values are measured by adapting radiometric sensors to match the appropriate luminous efficiency curves.
  • Photometric values are measured by adapting radiometric sensors with filters to match the appropriate luminous efficiency curves.
British Dictionary definitions for luminous efficiency

luminous efficiency

noun
1.
the efficiency of polychromatic radiation in producing a visual sensation. It is the radiant flux weighed according to the spectral luminous efficiencies of its constituent wavelengths divided by the corresponding radiant flux V
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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