- Fresnel field
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поле в промежуточной зоне, поле в зоне Френеля
Англо-русский словарь технических терминов. 2005.
Fresnel field
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Fresnel diffraction — In optics, the Fresnel diffraction equation for near field diffraction, is an approximation of Kirchhoff Fresnel diffraction that can be applied to the propagation of waves in the near field.[1] The near field can be specified by the Fresnel… … Wikipedia
Fresnel equations — The Fresnel equations, deduced by Augustin Jean Fresnel (pronEng|freɪˈnɛl), describe the behaviour of light when moving between media of differing refractive indices. The reflection of light that the equations predict is known as Fresnel… … Wikipedia
Fresnel lens — A Fresnel lens (pronounced [ frɛz.nəl] or [freɪ nɛl] ) is a type of lens invented by French physicist Augustin Jean Fresnel. Originally developed for lighthouses, the design enables the construction of lenses of large aperture and short focal… … Wikipedia
Fresnel integral — S(x) and C(x) The maximum of C(x) is about 0.977451424. If πt²/2 were used instead of t², then the image would be scaled vertically and horizontally (see below). Fresnel integrals, S(x) and C(x), are two transcendental functions named aft … Wikipedia
Fresnel zone — In optics and radio communications, a Fresnel zone (pronounced FRA nel Zone ), named for physicist Augustin Jean Fresnel, is one of a (theoretically infinite) number of concentric ellipsoids of revolution which define volumes in the radiation… … Wikipedia
Fresnel lens — Optics. a large lens with a surface of concentric grooves of prismatic profile, used in automobile headlights, searchlights, spotlights, etc. [1840 50; see FRESNEL] * * * Series of concentric rings, each consisting of a thin part of a simple lens … Universalium
Fresnel (unit of frequency) — A Fresnel is a unit of frequency equal to 1012 sec 1. It was occasionally used in the field of spectroscopy, but its use has been superseded by terahertz (1012 hertz). [Bayliss, Noel S. [http://www.nature.com/nature/journal/v167/n4244/abs/167367b0… … Wikipedia
Near and far field — This article is about the electromagnetic concept. For the mathematical, see Near field (mathematics). Antenna field regions for antennas that are shorter than the wavelength of the radiation they emit, such as the whip antenna of a citizen s… … Wikipedia
Huygens–Fresnel principle — Wave refraction in the manner of Huygens … Wikipedia
Augustin-Jean Fresnel — Infobox Scientist name = Augustin Jean Fresnel box width = image width =150px caption = Augustin Jean Fresnel birth date = Birth date|1788|5|10 birth place = Broglie (Eure) death date = death date and age|1827|7|14|1788|5|10 death place =… … Wikipedia
Coefficients De Fresnel — Pour les articles homonymes, voir Fresnel. Les coefficients de Fresnel, introduits par Augustin Jean Fresnel (1788 1827), interviennent dans la description du phénomène de réflexion réfraction des ondes électromagnétiques à l interface entre deux … Wikipédia en Français
