https://www.laserfocusworld.com/test-measurement/test-measurement/article/16556863/photonics-applied-metrology-stitching-interferometers-direct-imaging-aids-asphere-metrology
PHOTONICS APPLIED: METROLOGY: Stitching interferometers: Direct imaging aids asphere metrology |...
The QIS, a coherent imaging Fizeau interferometer, has been developed to measure high fringe densities for non-null, aspheric stitching interferometry.
applied metrologyphotonicsstitchinginterferometersdirect