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, an aperture is a hole or an opening through which light travels. More specifically, the aperture and focal length of an optical system determine...
- 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...
- 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...
- Aperture was an image organizer developed by Apple for the macOS operating system. It was first released in 2005 and was discontinued in 2015. The software...
- the system's focal length to the diameter of the entrance pupil ("clear aperture"). It is also known as the focal ratio, f-ratio, or f-stop, and is very...
- 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 median aperture (also known as the medial aperture, and foramen of Magendie) drains cerebrospinal fluid (CSF) from the fourth ventricle into the cisterna...
- 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...
- Nasal aperture may refer to: Posterior nasal apertures Anterior nasal aperture This disambiguation page lists articles ****ociated with the title Nasal...
- 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...