Fraunhofer may refer to:
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Joseph von Fraunhofer
Joseph Ritter von Fraunhofer (; ; 6 March 1787 – 7 June 1826) was a German physicist and optical lens manufacturer. He made optical glass, an achromatic telescope, and objective lenses. He also invented the spectroscope and developed diffract ...
(1787–1826), German physicist
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Fraunhofer (crater)
Fraunhofer is a lunar impact crater that is located just to the south-southwest of the walled plain Furnerius, in the southeastern part of the Moon. This crater appears foreshortened when viewed from the Earth, and is actually nearly circular.
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, a lunar crater
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Fraunhofer Society (Fraunhofer-Gesellschaft), a large German research organization
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Fraunhofer diffraction, far-field diffraction
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Fraunhofer lines, spectral lines of the Sun
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Fraunhofer distance
The Fraunhofer distance, named after Joseph von Fraunhofer, is the value of:
:d = ,
where D is the largest dimension of the radiator (in the case of a magnetic loop antenna, the diameter) and is the wavelength of the radio wave. This distance prov ...
, between near field and far field
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