TERMIUM Plus®

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

IRIS DIAPHRAGM [3 records]

Record 1 2011-08-18

English

Subject field(s)
  • Optical Instruments
  • Scientific Research Equipment
  • Bioengineering
OBS

Term(s) taken from a Canadian laboratory-equipment company's catalogue.

French

Domaine(s)
  • Instruments d'optique
  • Matériel et équipement (Recherche scientifique)
  • Technique biologique
OBS

Terme(s) tiré(s) du catalogue d'une compagnie canadienne d'équipement de laboratoire.

Spanish

Save record 1

Record 2 1994-01-28

English

Subject field(s)
  • Photography
DEF

System of movable overlapping metal or plastic leaves inside, behind, or in front of a lens which maintain a circular aperture of adjustable diameter. Adjusting this aperture controls the amount of light passing through the lens. So called by analogy with the eye.

OBS

The various settings of the diaphragm are usually calibrated in relative apertures or f-numbers and are called stops.

French

Domaine(s)
  • Photographie
DEF

[Photographie] Diaphragme formé d'un ensemble de lamelles mobiles délimitant une ouverture approximativement circulaire dont le diamètre peut être ajusté de façon continue.

Spanish

Save record 2

Record 3 1980-07-11

English

Subject field(s)
  • Photography

French

Domaine(s)
  • Photographie

Spanish

Save record 3

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