- aperture diameter
- диаметр входного отверстия (телескопа)
English-russian dictionary of physics. 2013.
aperture diameter
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Aperture synthesis — or synthesis imaging is a type of interferometry that mixes signals from a collection of telescopes to produce images having the same angular resolution as an instrument the size of the entire collection. At each separation and orientation, the… … Wikipedia
Aperture — For other uses, see Aperture (disambiguation). f stops demonstrated on a lens … Wikipedia
Aperture — Ap er*ture (?; 135), n. [L. apertura, fr. aperire. See {Aperient}.] 1. The act of opening. [Obs.] [1913 Webster] 2. An opening; an open space; a gap, cleft, or chasm; a passage perforated; a hole; as, an aperture in a wall. [1913 Webster] An… … The Collaborative International Dictionary of English
aperture — [ap′ər chər] n. [L apertura < apertus, pp. of aperire, to open < IE * ap wer , to uncover < base * ap(o) away + * wer to close, cover > WARN] 1. an opening; hole; gap 2. the opening, or the diameter of the opening, in a camera,… … English World dictionary
aperture — apertural /ap euhr choor euhl/, adj. apertured, adj. /ap euhr cheuhr/, n. 1. an opening, as a hole, slit, crack, gap, etc. 2. Also called aperture stop. Optics. an opening, usually circular, that limits the quantity of light that can enter an… … Universalium
aperture — 1. An inlet or entrance to a cavity or channel. in anatomy, an open gap or hole. SEE ALSO: fossa, ostium, orifice, pore. 2. The diameter of the objective of a microscope. SYN … Medical dictionary
aperture — noun / ˈæp.ə.tʃə(r), ˈæp.ə.tjʊə(r),ˈæp.ɚ.tʃɚ/ a) 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. b) Something which restricts the diameter of… … Wiktionary
aperture — noun Etymology: Middle English, from Latin apertura, from apertus, past participle of aperire to open Date: 15th century 1. an opening or open space ; hole 2. a. the opening in a photographic lens that admits the light b … New Collegiate Dictionary
aperture — the diameter of an opening; the diameter of the primary lens or mirror of a telescope … Mechanics glossary
Aperture — F/A/V A variable opening inside a lens that regulates the amount of light reaching the image plane. Also known as an iris. (Camera/Lighting) PP A variable opening in a camera lens to control the amount of light that hits the film or image sensor … Audio and video glossary
aperture synthesis — noun : a technique in radio astronomy in which two or more radio telescopes are varied in position and spacing to simulate a large telescope having a collecting area with a diameter approximately equal to the largest spacing between the smaller… … Useful english dictionary
