In this paper we consider two approaches widely used in testing of spherical optical surfaces: Fizeau interferometer and Shack-Hartmann wavefront sensor. Fizeau interferometer that is widely used in optical testing can be transformed to a device using Shack-Hartmann wavefront sensor, the alternative technique to check spherical optical components. We call this device Hartmannometer, and compare its features to those of Fizeau interferometer.
Alexander N. Nikitin, Nikolay Baryshnikov, Dmitrii Denisov, Valerii Karasik, Alexey Sakharov, Pavel Romanov, Julia Sheldakova, and Alexis Kudryashov, "Comparative analysis of methods and optical-electronic equipment to control the form parameters of spherical mirrors," Proc. SPIE 10539, Photonic Instrumentation Engineering V, 105390Z (Presented at SPIE OPTO: February 01, 2018; Published: 22 February 2018); https://doi.org/10.1117/12.2297078.
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