TERMIUM Plus®

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

REFRACTURE INDEX [1 record]

Filter results by subject field Alphabetical list of terms

Filter results by subject field

Alphabetical list of terms

Record 1 1999-09-02

English

Subject field(s)
  • Optics
  • Computer Graphics
  • Lasers and Masers
DEF

The ratio of the velocity of light or other radiation in the first of two media to its velocity in the second as it passes from one into the other, the first medium being usually taken to be a vacuum.

CONT

The index of refraction of a material, n is defined as the ratio of the velocity of light in a vacuum to the velocity of the material, v: n=c/v.

OBS

refractive index: standardized by ISO.

French

Domaine(s)
  • Optique
  • Infographie
  • Masers et lasers
DEF

Pour un milieu non absorbant et pour un rayonnement électromagnétique de fréquence spécifiée, rapport de la vitesse des ondes dans le vide à la vitesse de phase dans le milieu.

OBS

indice de réfraction : normalisé par l'ISO.

Spanish

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