TERMIUM Plus®

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Filter results by subject field Alphabetical list of terms

Filter results by subject field

Alphabetical list of terms

Record 1 1983-08-30

English

Subject field(s)
  • Photography
  • Optics
  • Optical Instruments
OBS

the ability of an optical system to change the vergence of a pencil of rays, usually designed quantitatively by the reciprocal of the focal length of the system.

French

Domaine(s)
  • Photographie
  • Optique
  • Instruments d'optique
OBS

on définit par puissance d'une lentille (ou convergence) l'inverse de la distance focale (évaluée en mètres). L'unité de puissance optique est la dioptrie.

Spanish

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