Visual meaning of 'aperture'? - learn with images, example in daily life

Visual illustration of aperture: An opening, gap, or hole, usually small and narrow

noun

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

"an aperture in a wall"

gap part technology device physics

Visual illustration of aperture: Something which restricts the diameter of the light path through one plane in an optical system. - Image 1

aperture: Something which restricts the diameter of the light path through one plane in an optical system. - Thumbnail 1

aperture: Something which restricts the diameter of the light path through one plane in an optical system. - Thumbnail 2

noun

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

"The camera's aperture controlled how much light entered the lens, affecting the brightness of the photograph. "

technology physics device

Visual illustration of aperture: 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.

noun

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.

"This telescope has a 100cm aperture."

astronomy physics technology science

Visual illustration of aperture: (communications) The (typically) large-diameter antenna used for receiving and transmitting radio frequency energy containing the data used in communication satellites, especially in the geostationary belt. For a comsat, this is typically a large reflective dish antenna; sometimes called an array.

noun

(communications) The (typically) large-diameter antenna used for receiving and transmitting radio frequency energy containing the data used in communication satellites, especially in the geostationary belt. For a comsat, this is typically a large reflective dish antenna; sometimes called an array.

"The satellite dish, with its large aperture, allowed the television station to receive a strong signal from the communication satellite. "

technology communication electronics space astronomy signal device machine system

Visual illustration of aperture: (of a right circular cone) The maximum angle between the two generatrices.

noun

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

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

math technical physics