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Topography mapping of convex aspheric surface up to 300 mm diameter Using “orthogonal ray” method
Author(s): Alexandra E. Gavlina; Vladislav I. Batshev; Denis A. Novikov; Maria V. Sergeeva
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Paper 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.

Paper Details

Date Published: 18 December 2019
PDF: 7 pages
Proc. SPIE 11208, 25th International Symposium on Atmospheric and Ocean Optics: Atmospheric Physics, 112082K (18 December 2019); doi: 10.1117/12.2540903
Show Author Affiliations
Alexandra E. Gavlina, Scientific and Technological Ctr. of Unique Instrumentation RAS (Russian Federation)
Vladislav I. Batshev, Scientific and Technological Ctr. of Unique Instrumentation RAS (Russian Federation)
Bauman Moscow State Technical Univ. (Russian Federation)
Denis A. Novikov, All-Russian Scientific Research Institute of Metrological Service (Russian Federation)
Maria V. Sergeeva, Scientific and Technological Ctr. of Unique Instrumentation RAS (Russian Federation)


Published in SPIE Proceedings Vol. 11208:
25th International Symposium on Atmospheric and Ocean Optics: Atmospheric Physics
Oleg A. Romanovskii; Gennadii G. Matvienko, Editor(s)

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