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  • Fizeau Interferometer
Aug 2015
Zygo Corporation, Ultra Precision TechnologiesRequest Info
MIDDLEFIELD, Conn., Aug. 27, 2015 — Zygo Verifire HDZygo Corp. has announced the Verifire HD high-resolution Fizeau interferometer for surface form and wavefront metrology of optical components and systems.

The phase-shifting metrology instrument performs advanced characterization of precision optical surfaces. A high-resolution camera and optimized optical design characterize midspatial frequency content in optical surfaces. Surface form measurement and analysis, curvature radius, and transmitted wavefront quality are supported by the company’s Mx metrology software.

Verifire is equipped with Zygo’s QPSI vibration-robust acquisition technology, enabling the system to maintain a high level of measurement accuracy in vibration-prone environments.


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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. Interferometers are used extensively for testing optical elements during manufacture. Typical designs include the Michelson, Twyman-Green and Fizeau interferometers. The basic interferometer components are a light source, a beamsplitter, a reference...
The science of measurement, particularly of lengths and angles.
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