Full company details
4D Technology Corporation
Sub. of Onto Innovation
3280 E Hemisphere Loop
Suite 146
Tucson, AZ 85706
United States
On-axis Dynamic Interferometer
Photonics.com
Jun 2022TUCSON, Ariz., June 8, 2022 —
The AccuFiz
® D on-axis dynamic interferometer from 4D Technology Corp. features a 600-mm aperture beam expander, measuring remote cavities, optical thickness, and homogeneity, even in challenging environments.
Its single-frame acquisition method provides vibration immunity and mitigates turbulence-caused phase errors by averaging them out from measurements. On-axis Fizeau measurements avoid the retrace error induced when using spatial carrier dynamic techniques, improving performance. The mainframe interferometer features a low-coherence laser to separate the signals from parallel surfaces in an optical system under test, permitting measurement of front and back surfaces of plane-parallel optics.
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