Fresnel zone   (translated from German)
Fresnel zone As Fresnel zones designates one with one Radio transmission ... ranges between transmitters and receivers: Within a Fresnel zone that amounts to Gangunterschied, thus difference ...
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Fresnel zone
Fresnel zone In optics and radio communications, a Fresnel zone (pronounced as FRA-nel Zone), named for physicist Augustin-Jean Fresnel, ...
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Fresnel zone plate   (translated from German)
Fresnel zone plate Binary ring sample of a Fresnel zone plate Kosinusfoermiges ring sample of a Fresnel zone plate One Fresnel zone plate, ...
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Talk:Fresnel zone
Talk:Fresnel zone what's the unit of r ? what ... What are the widths of the subsequent Fresnel zones, those "annular rings"? What are the ...
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Zone of Fresnel   (translated from Spanish)
Zone of Fresnel This article is, so far, only esbozo ... like in communications by radio or inalámbricas , zone of Fresnel it is a zone of clears additional that there is ...
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Fresnel lens   (translated from German)
Fresnel lens (A) Cross section of a Fresnel lens(B) Cross section of a conventional lenssame size and focal length A Fresnel lens or more exactly a one Fresnel' stufenlinse is an optical Lens, of Augustin Jean Fresnel one invented. Originally for Lighthouses developed, ...
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Zone plate
Zone plate Binary zone plate: The areas of each ring, both light and dark, are equal. Sinusoidal zone plate: This type has a single focal point. A Zone plate is a device used to focus light. Unlike lenses however, zone plates use diffraction instead of refraction. ...
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Fresnel integral
Fresnel integral In mathematics and optics, the two Fresnel integrals, S(x) and C(x), arise in the description of near field Fresnel diffraction phenomena, and are the integrals defined ... used to calculate the limits of the Fresnel integrals In the domain of complex numbers, the Fresnel integrals can be written using the ...
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Fresnel diffraction
Fresnel diffraction Fresnel diffraction is the diffraction pattern of an ... simple diffraction geometries. The key to the Fresnel approximation is the observation that: $r\; ...\; wavelength\; of\; the\; light.\; Unlike\; Fraunhofer\; diffraction,$Fresnel diffraction includes the curvature of the wavefront ... the relative phase is not constant. For Fresnel diffraction the electric field at point ( ...
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Augustin-Jean Fresnel
Augustin-Jean Fresnel For the lighting instrument, see Fresnel lantern. Augustin Fresnel Augustin-Jean Fresnel (pronounced [] in AmE, [] in French) (May 10 ... establishment of the theory of wave optics. Fresnel studied the behaviour of light both ...
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