TERMIUM Plus®

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NOMBRE TRANSMITTANCE [1 record]

Filter results by subject field Alphabetical list of terms

Filter results by subject field

Alphabetical list of terms

Record 1 1979-11-08

English

Subject field(s)
  • Optics
  • Photography
DEF

A number that is similar to the f-number but takes into account the amount of light actually transmitted by a lens after loss by absorption and reflection and that equals the f-number divided by the square root of the transmittance.

French

Domaine(s)
  • Optique
  • Photographie
DEF

Caractéristique d'un objectif, indiquant, avec une notation analogue à celle du nombre d'ouverture, le quotient du nombre d'ouverture par la racine carrée de la transmittance.

OBS

Par analogie avec nombre d'ouverture et sous toutes réserves.

Spanish

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TERMIUM Plus®, the Government of Canada's terminology and linguistic data bank
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