TERMIUM Plus®

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

halation [3 records]

Record 1 2008-05-30

English

Subject field(s)
  • Vacuum Tubes (Electronics)
DEF

In cathode-ray tubes, the presence of one or more illuminated annular areas surrounding the spot, caused by reflection, from the front and rear surfaces of the face-plate, of light originating from the spot.

French

Domaine(s)
  • Tubes et lampes (Électronique)
DEF

Dans un tube cathodique, présence, autour du spot, d'une ou de plusieurs zones annulaires lumineuses provenant des réflexions de la lumière du spot sur les parois avant et arrière du tube.

Spanish

Campo(s) temático(s)
  • Tubos de vacío (Electrónica)
Save record 1

Record 2 2006-03-20

English

Subject field(s)
  • Television Arts
  • Cinematography
  • Theatre and Opera
DEF

A light flare or streak around objects in [a] scene.

CONT

... the "back light" which gives the actors a slight halo or Rembrandt effect.

French

Domaine(s)
  • Télévision (Arts du spectacle)
  • Cinématographie
  • Théâtre et Opéra
DEF

Sorte d'auréole qui entoure parfois l'image d'un sujet sur le film.

CONT

[...] un «back light» ou «contre-jour» en français, pour détacher les acteurs du fond en nimbant leurs cheveux d'un halo.

Spanish

Save record 2

Record 3 2004-03-18

English

Subject field(s)
  • Photography
  • Mathematical Geography
DEF

Halo formed round the image of bright points on negatives [and produced] by the reflection of scattered image light from the bottom of the support.

OBS

[Halation can be] seen in night photographs including street lamps and largely prevented by light absorbing coatings on the back plates.

French

Domaine(s)
  • Photographie
  • Géographie mathématique
DEF

Auréole qui entoure une image photographique d'un point brillant.

OBS

On y pare en étendant au dos de la couche sensible une couche de matière anti-diffusante dite «anti-halo».

Spanish

Save record 3

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