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Radiance vs Illumination - What's the difference?

radiance | illumination | Related terms |

As nouns the difference between radiance and illumination

is that radiance is the quality of being radiant, shining, bright or splendid while illumination is the act of illuminating, or supplying with light; the state of being illuminated.

radiance

English

Noun

(wikipedia radiance)
  • the quality of being radiant, shining, bright or splendid
    • Girt with omnipotence, with radiance crowned. — Milton.
  • (physics) the flux of radiation emitted per unit solid angle in a given direction by a unit area of a source

    • illumination

    English

    Noun

    (en noun)
  • The act of illuminating, or supplying with light; the state of being illuminated.
  • Festive decoration of houses or buildings with lights.
  • Adornment of books and manuscripts with colored illustrations. See illuminate (transitive verb).