New technique of segments alignment in a large dimensions mirror

Fermín S. Granados-Agustín; María E. Percino-Zacarías; Sergio Vázquez y Montiel; Alejandro Cornejo-Rodríguez

doi:10.1117/12.2320802

19 September 2018 New technique of segments alignment in a large dimensions mirror

Fermín S. Granados-Agustín, María E. Percino-Zacarías, Sergio Vázquez y Montiel, Alejandro Cornejo-Rodríguez

Proceedings Volume 10747, Optical System Alignment, Tolerancing, and Verification XII; 1074705 (2018) https://doi.org/10.1117/12.2320802
Event: SPIE Optical Engineering + Applications, 2018, San Diego, California, United States

Abstract

The tendency in the manufacture of large telescopes that working in visible light, has improve the manufacture of large mirrors by the use off-axis segments, which must be aligned with very high precision in order of fractions of wavelength for the optimal operation. In this paper we present a new method for alignment segments of a big telescope, where the positions of the images produced by each off-axis segment, of a point source placed at center of curvature, the primary mirror. These positions can be known by exact rays tracing, considering the aberrations produce in each off-axis segment. Consequently, each point source is not on the optical axis of the system. Some numerical simulations are shown to establish the accuracy achieved with the proposed method.

Conference Presentation

Citation Download Citation

Fermín S. Granados-Agustín, María E. Percino-Zacarías, Sergio Vázquez y Montiel, and Alejandro Cornejo-Rodríguez "New technique of segments alignment in a large dimensions mirror", Proc. SPIE 10747, Optical System Alignment, Tolerancing, and Verification XII, 1074705 (19 September 2018); https://doi.org/10.1117/12.2320802

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