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
ApertureAperture Ap"er*ture (?; 135), n. [L. apertura, fr. aperire.
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
- In optics, the numerical aperture
(NA) of an optical system
is a dimensionless number
- The aperture
of an optical system
is the opening
that can p**** through. Aperture
may also refer
to: In anatomy, a number...
- An aperture grille
is one of two major technologies
used to manufacture color cathode
ray tube (CRT) televisions
displays; the other
- The lateral aperture
is a paired structure
anatomy. It is an opening
in each lateral extremity
of the lateral recess
of the fourth ventricle
priority, often abbreviated
A or Av (for aperture
value) on a camera
mode dial, is a setting
on some cameras
the user to set a specific...
- the system's focal length
to the diameter
of the entrance pupil
"). It is also known
as the focal
ratio, f-ratio, or f-stop, and is very...
- The median aperture
as the medial aperture
, and foramen
of Magendie) drains cerebrospinal fluid
(CSF) from the fourth ventricle
into the cisterna...
- or ring. Open sights
use a notch
of some sort as the rear sight, while aperture sights
use some form of a circular
hole. Civilian, hunting, and police...
- 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...
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