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speckle pattern

noun, Astronomy
1.
the visual appearance of a star as viewed through a large telescope, with irregularities caused by the distorting effect of local turbulence in the earth's atmosphere.
Origin
1960-1965
1960-65
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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Examples from the web for speckle pattern
  • One-dimensional electronic correlation of speckle pattern movement allows a quasi-real time measure of strain.
  • When the reference apertures are somewhat larger, the speckle pattern is inverted using iterative techniques.
  • The speckle pattern that is observed when laser light falls on an optically rough surface is also a diffraction phenomenon.
  • In image correlation, a random speckle pattern is painted on to the specimen.
  • What one observes is a speckle pattern superposed on the average scattering pattern.

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15
18
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