Manufacturing ELT M1 segments: large optics in a smart factory

Camille Frapolli; Christophe Couteret; Aurélie Delfosse; Gilles Chaussat; Alexandre Bacouel; Pauline Lesongeur; Frederic Boillet; Alain Denis; Sebastien Julienne; Marc Gouedard

doi:10.1117/12.3020277

26 August 2024 Manufacturing ELT M1 segments: large optics in a smart factory

Camille Frapolli, Christophe Couteret, Aurélie Delfosse, Gilles Chaussat, Alexandre Bacouel, Pauline Lesongeur, Frederic Boillet, Alain Denis, Sebastien Julienne, Marc Gouedard

Author Affiliations +

Proceedings Volume 13100, Advances in Optical and Mechanical Technologies for Telescopes and Instrumentation VI; 1310002 (2024) https://doi.org/10.1117/12.3020277
Event: SPIE Astronomical Telescopes + Instrumentation, 2024, Yokohama, Japan

Abstract

In 2017, the European Southern Observatory (ESO) awarded a contract for the Polishing, integration and final figuring of the Segment Assemblies of the primary mirror (M1) for the Extremely Large Telescope (ELT) to Safran Reosc. Since then, the design and commissioning of a production unit dedicated to ELT M1 has been accomplished and the plant has been producing many mirrors since spring 2022. We will introduce the smart factory, its processes and their automation that enabled reaching the current throughput of one mirror per day. We will then present the status of the project, some lessons learned and highlight the successes that have been achieved so far.

Conference Presentation

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Camille Frapolli, Christophe Couteret, Aurélie Delfosse, Gilles Chaussat, Alexandre Bacouel, Pauline Lesongeur, Frederic Boillet, Alain Denis, Sebastien Julienne, and Marc Gouedard "Manufacturing ELT M1 segments: large optics in a smart factory", Proc. SPIE 13100, Advances in Optical and Mechanical Technologies for Telescopes and Instrumentation VI, 1310002 (26 August 2024); https://doi.org/10.1117/12.3020277

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