Subaperture Stitching InteRferometry (SSI) Measure Smarter. Measure Better.


ssi asphere

SSI Metrology, exclusively from QED, is one of the most powerful and flexible metrology processes available to optics manufacturers. With SSI , improvements in the accuracy, resolution, reproducibility and reliability of your measurements will result in improved productivity and greater confidence. Intuitive and easy-to-use, SSI Metrology systems fit seamlessly in your shop. They can be used as both in-process metrology tools, and as end of the line, final quality control measurement systems.

The bottom line… QED's Subaperture Stitching Interferometry produces better measurements on a broader range of parts than any other measurement system.


The most important investment an optics manufacturer can make.

Metrology is a critical piece of the optics fabrication process.

Don't be satisfied with anything less than full aperture metrology.