Error analysis of back focal length measurement technique for long focus large-scaled lenses

Ivan N. Sudarikov; Magomed A. Abdulkadyrov; Aleksandr N. Ignatov; Vladimir E. Patrikeev

doi:10.1117/12.2231595

22 July 2016 Error analysis of back focal length measurement technique for long focus large-scaled lenses

Ivan N. Sudarikov, Magomed A. Abdulkadyrov, Aleksandr N. Ignatov, Vladimir E. Patrikeev

Proceedings Volume 9912, Advances in Optical and Mechanical Technologies for Telescopes and Instrumentation II; 991212 (2016) https://doi.org/10.1117/12.2231595
Event: SPIE Astronomical Telescopes + Instrumentation, 2016, Edinburgh, United Kingdom

Abstract

Interference method of testing the long-focus focusing lenses allows measuring such optical parameters as focal distances and distortions of wavefront passing through the lens. High measurement accuracy is achieved by means of a special laser measurement system (laser tracker) in autocollimation schematic based on dynamic interferometer. Main sources of instrument error were found out and their relation to the measurement schematic parameters was defined. The article shows that the method allows achieving total instrument measurement error of the 0.003% of the value being measured.

Citation Download Citation

Ivan N. Sudarikov, Magomed A. Abdulkadyrov, Aleksandr N. Ignatov, and Vladimir E. Patrikeev "Error analysis of back focal length measurement technique for long focus large-scaled lenses", Proc. SPIE 9912, Advances in Optical and Mechanical Technologies for Telescopes and Instrumentation II, 991212 (22 July 2016); https://doi.org/10.1117/12.2231595

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