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INTERFEROMETER

Photonics Spectra
Oct 2006
4D Technology CorporationRequest Info
 
4DTechnology Corp.jpgThe FizCam 2000 unveiled by 4D Technology Corp. is an on-axis vibration-insensitive Fizeau interferometer with a short-coherent-length source for measuring transparent samples and assemblies that are difficult or impossible to measure with traditional laser interferometers. The instrument measures parallel optical-grade surfaces and can separate and measure surfaces within an optical assembly, enabling remote cavity measurements, index homogeneity testing, thin optics measurement and environmental chamber testing. A single-camera high-speed optical phase sensor makes a wavefront measurement in 30 μs.


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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.  
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