TERMIUM Plus®

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

ORDINARY INDEX [2 records]

Record 1 1990-04-17

English

Subject field(s)
  • Optics

French

Domaine(s)
  • Optique
DEF

Indice de réfraction indépendant de la direction de propagation de la lumière.

Spanish

Campo(s) temático(s)
  • Óptica
Save record 1

Record 2 1979-02-19

English

Subject field(s)
  • Optics
DEF

The index of refraction of the ordinary ray in a crystal.

DEF

index of refraction: 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 (...)

DEF

ordinary ray: One of two rays into which a ray incident on an anisotropic uniaxial crystal is split; it obeys the ordinary laws of refraction, in contrast to the extraordinary ray.

French

Domaine(s)
  • Optique
CONT

Dans un cristal anisotrope, il existe à chaque fréquence [de la lumière incidente], deux valeurs de l'indice de réfraction: l'indice "ordinaire" et l'indice "extraordinaire". Le premier (...) ne dépend pas de la direction de propagation; (...)

OBS

indice de réfraction: rapport constant entre le sinus de l'angle d'incidence et le sinus de l'angle de réfraction, dans un même milieu.

Spanish

Save record 2

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