<microscopy> A class of diffraction fringes formed when the source of illumination and viewing screen are at a finite distance from a diffracting edge.
In the electron microscope these fringes are best seen when the object is slightly out of focus.
(05 Aug 1998)
fresh water, freshwater marsh, Fresnel, Augustin Jean < Prev | Next >
Fresnel lantern, Fresnel lens, Fresnel prism
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