TERMIUM Plus®

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

depth of focus [2 records]

Filter results by subject field Alphabetical list of terms

Filter results by subject field

Alphabetical list of terms

Record 1 2000-12-28

English

Subject field(s)
  • Vulcanology and Seismology
DEF

The distance from the focus of an earthquake to the epicenter.

CONT

Large observatories in many countries send in their readings daily by urgent cable, and the NEIC (National Earthquake Information Center) works out approximate origin times, epicenters, and focal depths, the accuracy of which is astonishingly high.

OBS

A key discriminant in verification as earthquakes can occur at depths that are greater than it is practical to drill for a nuclear test

OBS

depth of focus; focal depth of earthquake: term(s) extracted from the "Disarmament and Peace Keeping" glossary with the permission of the United Nations Office at Geneva.

French

Domaine(s)
  • Volcanologie et sismologie
CONT

Les déterminations de l'épicentre et de la profondeur focale sont effectuées régulièrement en diverses institutions [...] à partir de l'heure d'arrivée des ondes sismiques à quelques centaines de stations plus ou moins bien réparties sur le Globe.

OBS

profondeur focale; profondeur du foyer : terme(s) tiré(s) du lexique «Désarmement et Maintien de la Paix» avec l'autorisation de l'Office des Nations Unies à Genève.

Spanish

Save record 1

Record 2 1998-11-16

English

Subject field(s)
  • Photography
  • Television Arts
  • Cinematography
DEF

Within a camera, the range of distances from the lens to the photo-sensitive surface within which the image is acceptably sharply defined for a given circle of confusion.

OBS

The depth of focus depends on the diameter of the circle of confusion, on the lens aperture, and on the distance between the lens and the image.

French

Domaine(s)
  • Photographie
  • Télévision (Arts du spectacle)
  • Cinématographie
DEF

Dans la caméra de télévision, distance entre la lentille et la plaque mosaïque qui définit l'aire de netteté de l'image.

OBS

La profondeur de foyer représente la quantité dont on peut, sans nuire à la netteté, avancer ou reculer (l'objectif étant mis au point) le plan de la surface sensible.

Spanish

Save record 2

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© Public Services and Procurement Canada, 2024
TERMIUM Plus®, the Government of Canada's terminology and linguistic data bank
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