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Alphabetical list of terms

Record 1 1975-03-11

English

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

Diopter, dioptre: a unit of measurement of the refractive power of a lens equal to the reciprocal of the focal length in meters.

French

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

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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