TERMIUM Plus®

The Government of Canada’s terminology and linguistic data bank.

DIFFUSION FACTOR [1 record]

Record 1 1985-11-01

English

Subject field(s)
  • Optics
  • Illumination Engineering
DEF

Ratio of the mean of the values of luminance measured at 20° and 70° (0.35 and 1.22 rad) to the luminance measured at 5° (0.09 rad) from the normal, when the surface considered is illuminated normally.

French

Domaine(s)
  • Optique
  • Éclairagisme
DEF

Rapport de la moyenne des luminances lumineuses mesurées sous des angles de 20° et 70° (0,35 et 1,22 rad), à la luminance mesurée sous un angle de 5° (0,09 rad) avec la normale, la surface considérée étant éclairée en incidence normale.

Spanish

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