Full company details
4D Technology Corp.
Sub. of Onto Innovation
3280 E Hemisphere Loop
Suite 146
Tucson, AZ 85706
United States
Fizeau Interferometer
Photonics Spectra
Jul 2024The AccuFiz
® Duo from 4D Technology is a dual source dynamic laser Fizeau interferometer for measuring flats and lenses without the need for coating surfaces to attenuate extraneous interference fringes. This is due to a short coherence mode that enables surface error, transmitted wavefront error, remote cavity, wedge, optical thickness, and homogeneity measurements of plane parallel transparent surfaces down to 0.2 mm thick. The AccuFiz Duo also includes a long coherence source that uses a stabilized 632.8-nm HeNe laser for digital holograms, as well as 4D Technology’s 4Sight Focus analysis software.
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