apertures background

apertures

/ˈæpərtʃʊrz/ /ˈæpərtʃərz/

Illustration apertures - Image 1

noun

Ouvertures, fentes, trous

An opening, gap, or hole, usually small and narrow

Examples :

"an aperture in a wall"

Une ouverture dans un mur.

part gap architecture space technical

Illustration apertures - Image 1

Illustration apertures - Image 2

noun

Ouverture

Something which restricts the diameter of the light path through one plane in an optical system.

Examples :

"The camera's different apertures control how much light reaches the sensor, affecting the brightness and depth of field in the picture. "

Les différentes ouvertures de l'appareil photo contrôlent la quantité de lumière qui atteint le capteur, ce qui affecte la luminosité et la profondeur de champ de l'image.

physics technology device science

Illustration apertures - Image 1

noun

Ouverture, diamètre

The diameter of the aperture (in the sense above) which restricts the width of the light path through the whole system. For a telescope, this is the diameter of the objective lens.

Examples :

"This telescope has a 100cm aperture."

Ce télescope a une ouverture de 100 cm.

physics astronomy technical science device system

Illustration apertures - Image 1

noun

Ouvertures, antennes

Examples :

"The communication satellite used for the global television broadcasts has large apertures to receive and transmit signals clearly. "

Le satellite de communication utilisé pour les émissions de télévision mondiales dispose de grandes ouvertures pour recevoir et transmettre clairement les signaux.

technology communication electronics space astronomy signal device machine energy physics

Illustration apertures - Image 1

noun

Angle au sommet

(of a right circular cone) The maximum angle between the two generatrices.

Examples :

"If the generatrix makes an angle θ to the axis, then the aperture is 2θ."

Si la génératrice fait un angle θ avec l'axe, alors l'angle au sommet est de 2θ.