Explore: Aperture

In optics, the aperture of an optical system (including a system consisting of a single lens) is the hole or 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

also known as the inverse relative aperture, because it is the inverse of the relative aperture, defined as the aperture diameter divided by the focal length

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

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

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

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

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

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

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