aperture diaphragm

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• aperture diaphragm — apertūrinė diafragma statusas T sritis fizika atitikmenys: angl. aperture diaphragm; aperture stop vok. Aperturblende, f; Öffnungsblende, f rus. апертурная диафрагма, f pranc. diaphragme d’ouverture, m; diaphragme effectif de limitation, m …   Fizikos terminų žodynas

• aperture stop — apertūrinė diafragma statusas T sritis fizika atitikmenys: angl. aperture diaphragm; aperture stop vok. Aperturblende, f; Öffnungsblende, f rus. апертурная диафрагма, f pranc. diaphragme d’ouverture, m; diaphragme effectif de limitation, m …   Fizikos terminų žodynas

• diaphragm — ► NOUN 1) a dome shaped muscular partition separating the thorax from the abdomen in mammals. 2) a taut flexible membrane in mechanical or acoustic systems. 3) a thin contraceptive cap fitting over the cervix. 4) a device for varying the… …   English terms dictionary

• Diaphragm (optics) — A 35 mm lens set to f/8; the diameter of the seven sided entrance pupil, the virtual image of the opening in the iris diaphragm, is 4.375 mm In optics, a diaphragm is a thin opaque structure with an opening (aperture) at its center. The role of… …   Wikipedia

• Aperture — For other uses, see Aperture (disambiguation). f stops demonstrated on a lens …   Wikipedia

• diaphragm — 1. The musculomembranous partition between the abdominal and thoracic cavities. SYN: diaphragma (2) [TA], interseptum, midriff, phren (1). 2. A thin disk pierced with an opening, used in a microscope, camera, or other op …   Medical 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

• Diaphragm — Contents 1 Optics and photography 2 Acoustics 3 Other 4 …   Wikipedia

• diaphragm — /duy euh fram /, n. 1. Anat. a. a muscular, membranous or ligamentous wall separating two cavities or limiting a cavity. b. the partition separating the thoracic cavity from the abdominal cavity in mammals. 2. Physical Chem. a. a porous plate… …   Universalium

• diaphragm — 1. noun /ˈdaɪəˌfræm/ a) In mammals, a sheet of muscle separating the thorax from the abdomen, contracted and relaxed in respiration to draw air into and expel air from the lungs; also called thoracic diaphragm. b) Any of various membranes or… …   Wiktionary

• diaphragm — n. 1 a muscular partition separating the thorax from the abdomen in mammals. 2 a partition in animal and plant tissues. 3 a disc pierced by one or more holes in optical and acoustic systems etc. 4 a device for varying the effective aperture of… …   Useful english dictionary