Optics subjected to self-weight deflection: direct computation of induced aberrations

Ivan Di Antonio

doi:10.1117/12.3018790

26 August 2024 Optics subjected to self-weight deflection: direct computation of induced aberrations

Ivan Di Antonio

Author Affiliations +

Proceedings Volume 13100, Advances in Optical and Mechanical Technologies for Telescopes and Instrumentation VI; 131004X (2024) https://doi.org/10.1117/12.3018790
Event: SPIE Astronomical Telescopes + Instrumentation, 2024, Yokohama, Japan

Conference Poster

Abstract

The well-known equation of the maximum self-weight deflection of a circular plate of constant thickness is here verified through finite element analyses for a number of combinations of radius, thickness and support constraint. Deformation maps are then post-processed and reconstructed through Zernike polynomials to retrieve the most significant induced optical aberrations. Finally, the formulation is extended to directly compute defocus and spherical aberration, through suitable coefficients, independent on the support constraint.

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

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Ivan Di Antonio "Optics subjected to self-weight deflection: direct computation of induced aberrations", Proc. SPIE 13100, Advances in Optical and Mechanical Technologies for Telescopes and Instrumentation VI, 131004X (26 August 2024); https://doi.org/10.1117/12.3018790

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