Topography mapping of convex aspheric surface up to 300 mm diameter Using “orthogonal ray” method

Alexandra E. Gavlina; Vladislav I. Batshev; Denis A. Novikov; Maria V. Sergeeva

doi:10.1117/12.2540903

18 December 2019 Topography mapping of convex aspheric surface up to 300 mm diameter Using “orthogonal ray” method

Alexandra E. Gavlina, Vladislav I. Batshev, Denis A. Novikov, Maria V. Sergeeva

Proceedings Volume 11208, 25th International Symposium on Atmospheric and Ocean Optics: Atmospheric Physics; 112082K (2019) https://doi.org/10.1117/12.2540903
Event: XXV International Symposium, Atmospheric and Ocean Optics, Atmospheric Physics, 2019, Novosibirsk, Russian Federation

Abstract

The present report is devoted to the overview of topography mapping of convex aspheric surface using the created interferometer for large convex optical aspheric surfaces. The testing method is also presented. It is based on an orthogonal ray scheme, where the convex testing surface is illuminated by a collimated beam, that is perpendicular to the optical axis of the surface. The interference pattern is formed on a screen by the interaction of the reference beam passing over the test surface and the object beam reflected from the test surface. The interference pattern is a system of quasi-straight fringes, containing information about the shape of the tested surface as the distance between those fringes. The experimental data obtained on the interferometer and presented.

Citation Download Citation

Alexandra E. Gavlina, Vladislav I. Batshev, Denis A. Novikov, and Maria V. Sergeeva "Topography mapping of convex aspheric surface up to 300 mm diameter Using “orthogonal ray” method", Proc. SPIE 11208, 25th International Symposium on Atmospheric and Ocean Optics: Atmospheric Physics, 112082K (18 December 2019); https://doi.org/10.1117/12.2540903

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