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21 September 2011Adaptive two-beam interferometer for testing optical surfaces
The aim of this work is to design an interferometric system that will adapt the shape of the reference wavefront to the
shape of the measured optical surface. The designed adaptive two-beam interferometer uses the electromagnetic
deformable mirror MiraoTM52 from ImagineEyes for a generation of the reference wavefront and it can be applied for
measurements of flat and spherical surfaces and even for measurements of free-form surfaces. We perform a detailed
analysis of this technique and several possible measurement setups and principles of measurement and calibration of the
designed adaptive interferometer are described. The principle of measurement is shown on an example of the
experimental set-up of the adaptive interferometer in our laboratory.