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

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

noun

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

"an aperture in a wall"

part gap architecture space technical

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

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

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

physics technology device science

Visual illustration of apertures: 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."

physics astronomy technical science device system

Visual illustration of apertures: (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 communication satellite used for the global television broadcasts has large apertures to receive and transmit signals clearly. "

technology communication electronics space astronomy signal device machine energy physics

Visual illustration of apertures: (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."