aperture

diaphragme, ouverture

Ouverture d’un appareil photo ou d’un autre instrument qui règle la quantité de lumière qui entre.

En anglais simple : An opening in a camera or other instrument that controls how much light enters.

• Open the aperture to let in more light.
• A narrow aperture keeps more of the scene sharp.
• The camera adjusts its aperture automatically.

Expressions courantes : camera aperture, wide aperture

ouverture, diamètre d’ouverture

Largeur d’une ouverture laissant entrer la lumière ou de la lentille principale d’un télescope.

En anglais simple : The width of a light opening or a telescope’s main lens.

• This telescope has a large aperture.
• The aperture measures ten centimetres across.
• A greater aperture allows us to see fainter stars.

Expressions courantes : large aperture, telescope aperture

ouverture, orifice

Trou petit ou étroit par lequel quelque chose peut passer.

En anglais simple : A small or narrow hole that something can pass through.

• Light entered through a small aperture.
• He looked through an aperture in the wall.
• The stone had several narrow apertures.

Comment l'utiliser : aperture in something (There was an aperture in the metal cover.)

Synonymes : opening, hole, gap

Expressions courantes : narrow aperture, aperture in something

antenne satellite

Grande antenne qui envoie ou reçoit des signaux pour communiquer par satellite.

En anglais simple : A large antenna that sends or receives signals used in satellite communication.

• The station uses a large aperture.
• Engineers installed a second aperture to receive satellite signals.
• Each aperture points towards a different satellite.

Synonymes : antenna

Expressions courantes : satellite aperture, large aperture