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Laser Interferometer

Industrial Photonics
Apr 2014
4D Technology CorporationRequest Info
 
TUCSON, Ariz., Jan. 22, 2014 — 4D Technology Corp. has introduced the AccuFiz 6-MP laser interferometer for measuring steep slopes, spheric and aspheric optics and molds, and small-diameter optics.

The instrument has a 2400 × 2400-pixel sensor that doubles the measurable spatial frequency range and quadruples the sampling capability of standard Fizeau interferometers.

The added resolution makes it possible to measure surface shape earlier in the manufacturing process and to capture polishing marks despite steep slopes.

For more information, visit: www.4dtechnology.com


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GLOSSARY
Fizeau interferometer
A type of interferometer noted for producing narrow multiple-beam interference fringes. As a result, when compared with the Twyman-Green, the Fizeau interferometer has fewer optical components, does not have the large beamsplitter and can be adjusted to a greater accuracy.  
laser interferometer
An interferometer that uses a laser as its light source. The purely monochromatic nature of the laser results in improved efficiency and overall performance.
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