TERMIUM Plus®

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PRIMARY STANDARD LIGHT [1 record]

Filter results by subject field Alphabetical list of terms

Filter results by subject field

Alphabetical list of terms

Record 1 1985-10-01

English

Subject field(s)
  • Optics
DEF

a light source by which the unit of light is established and from which the values of standards are derived.

OBS

The present international standard is a full radiator at the temperature of freezing platinum.

French

Domaine(s)
  • Optique
DEF

Source lumineuse étalon, conforme à une spécification, servant à reproduire l'unité de lumière.

OBS

L'étalon international actuel est un corps noir à la température de congélation du platine.

Spanish

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