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...
- The aperture of an optical system is the opening that limits the amount of light that can p**** through. Aperture may also refer to: In science and technology:...
- 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...
- the system's focal length to the diameter of the entrance pupil ("clear aperture"). It is a dimensionless number that is a quantitative measure of lens...
- Coded apertures or coded-aperture masks are grids, gratings, or other patterns of materials opaque to various wavelengths of electromagnetic radiation...
- 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...
- Aperture Foundation is a nonprofit arts institution, founded in 1952 by Ansel Adams, Minor White, Barbara Morgan, Dorothea Lange, Nancy Newhall, Beaumont...
- Aperture is a discontinued image organizer, once developed by Apple Inc. for the macOS operating system, first released in 2005, which was available from...
- 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...
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