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Laser Speckle Interferometers

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Laser Optical Engineering Ltd. - East Midlands Airport, United Kingdom

Glossary

laser speckle Sparkling granular pattern that is observed when an object diffusely reflects coincident laser light. Speckle appears as an irregularity in many holographs but has been exploited as a measurement technique. See also speckle metrology.
speckle metrology Refers to the variety of techniques that use the interference pattern produced by laser light diffusely reflected by an object. There are two basic techniques: direct laser photography, used when there are correlations between the speckle patterns...
surface profile A representation of the shape of a surface, including any roughness or other irregularities. The profile can be generated by direct measurements, as by a stylus, or by remote measurement, as by an interferometer.
interferometer An instrument that employs the interference of lightwaves to measure the accuracy of optical surfaces; it can measure a length in terms of the length of a wave of light by using interference phenomena based on the wave characteristics of light....

Laser Speckle Interferometers Suppliersspeckle interferometrysparkling granular patternlaser interferometerssurface profilingsurface measurementoptical surface measurementinterference of light waveswavefront sensingreflected lightspeckle metrologyopticstest & measurement