In optics, the aperture of an optical system (including a system consisted of a single lens) is a hole or an opening that primarily limits light propagated...

Look up aperture in Wiktionary, the free dictionary. The aperture of an optical system is the opening that limits the amount of light that can pass through...

The median aperture (median aperture of fourth ventricle or foramen of Magendie) is an opening at the caudal portion of the roof of the fourth ventricle...

The lateral aperture, lateral aperture of fourth ventricle or foramen of Luschka (after anatomist Hubert von Luschka) is an opening at the lateral extremity...

relative aperture, because it is the inverse of the relative aperture, defined as the aperture diameter divided by focal length. The relative aperture indicates...

In optics, the numerical aperture (NA) of an optical system is a dimensionless number that characterizes the range of angles over which the system can...

Aperture is a discontinued professional image organizer and editor developed by Apple between 2005 and 2015 for the Mac, as a professional alternative...

center on a woman, Chell, forced to undergo a series of tests within the Aperture Science Enrichment Center by a malicious artificial intelligence, GLaDOS...

sight inserts, and adjustable aperture mechanisms. Front aperture size is a compromise between a tight enough aperture to clearly define the aiming point...

The angular aperture of a lens is the angular size of the lens aperture as seen from the focal point: a = 2 arctan ⁡ ( D / 2 f ) = 2 arctan ⁡ ( D 2 f...

opening (aperture) at its center. The role of the diaphragm is to stop the passage of light, except for the light passing through the aperture. Thus it...

The piriform aperture, pyriform aperture, or anterior nasal aperture is a pear-shaped opening in the human skull. Its long axis is vertical, and narrow...

In electromagnetics and antenna theory, the aperture of an antenna is defined as "A surface, near or on an antenna, on which it is convenient to make assumptions...

The aperture is an opening in certain kinds of mollusc shells: it is the main opening of the shell, where the head-foot part of the body of the animal...

Synthetic-aperture radar (SAR) is a form of radar that is used to create two-dimensional images or three-dimensional reconstructions of objects, such as...

The superior thoracic aperture, also known as the thoracic outlet, or thoracic inlet refers to the opening at the top of the thoracic cavity. It is also...

Aperture priority, often abbreviated A or Av (for aperture value) on a camera mode dial, is a mode on some cameras that allows the user to set a specific...

An aperture grille is one of two major technologies used to manufacture color cathode-ray tube (CRT) televisions and computer displays; the other is the...

Aperture Foundation is a nonprofit arts institution, founded in 1952 by Ansel Adams, Minor White, Barbara Morgan, Dorothea Lange, Nancy Newhall, Beaumont...

Aperture magazine, based in New York City, is an international quarterly journal specializing in photography. Founded in 1952, Aperture magazine is the...

The Five-hundred-meter Aperture Spherical Telescope (FAST; Chinese: 五百米口径球面射电望远镜), nicknamed Tianyan (天眼, lit. "Sky's/Heaven's Eye"), is a radio telescope...

Aperture Entertainment is a management and production company founded by Adam Goldworm in March 2009. Aperture Entertainment represents a diverse group...

Nasal aperture may refer to: Posterior nasal apertures Anterior nasal aperture This disambiguation page lists articles associated with the title Nasal...

The pelvic inlet or superior aperture of the pelvis is a planar surface which defines the boundary between the pelvic cavity and the abdominal cavity (or...

of the best-focused spot of light that a perfect lens with a circular aperture can make, limited by the diffraction of light. The Airy disk is of importance...

Aperture Tag: The Paint Gun Testing Initiative is a 2014 puzzle-platform game developed and published by the Aperture Tag Team for Windows and OS X. Unlike...

Aperture synthesis or synthesis imaging is a type of interferometry that mixes signals from a collection of telescopes to produce images having the same...

Aperture masking interferometry (or Sparse aperture masking) is a form of speckle interferometry, that allows diffraction limited imaging from ground-based...

Optical Aperture Synthesis Telescope, is a multi-element optical astronomical interferometer with baselines of up to 100 metres, which uses aperture synthesis...

Aperture Desk Job is a 2022 action game by Valve. A spin-off of the Portal series, it was released concurrently with the Steam Deck as a tech demo showcasing...