Definition of Aperture. Meaning of Aperture. Synonyms of Aperture

Here you will find one or more explanations in English for the word Aperture. Also in the bottom left of the page several parts of wikipedia pages related to the word Aperture and, of course, Aperture synonyms and on the right images related to the word Aperture.

Definition of Aperture

Aperture
Aperture Ap"er*ture (?; 135), n. [L. apertura, fr. aperire. See Aperient.] 1. The act of opening. [Obs.] 2. An opening; an open space; a gap, cleft, or chasm; a passage perforated; a hole; as, an aperture in a wall. An aperture between the mountains. --Gilpin. The back aperture of the nostrils. --Owen. 3. (Opt.) The diameter of the exposed part of the object glass of a telescope or other optical instrument; as, a telescope of four-inch aperture. Note: The aperture of microscopes is often expressed in degrees, called also the angular aperture, which signifies the angular breadth of the pencil of light which the instrument transmits from the object or point viewed; as, a microscope of 100[deg] aperture.

Meaning of Aperture from wikipedia

- 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 p**** through...
- The lateral aperture of the fourth ventricle or foramen of Luschka (after anatomist Hubert von Luschka) is an opening at the lateral extremity of either...
- The median aperture (also known as the medial aperture and foramen of Magendie) is an opening of the fourth ventricle at the caudal portion of the roof...
- 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...
- 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 ****umptions...
- 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...
- opening (aperture) at its center. The role of the diaphragm is to stop the p****age of light, except for the light p****ing through the aperture. Thus it...
- Aperture is a discontinued professional image organizer and editor developed by Apple between 2005 and 2015 for the Mac, as a professional alternative...