Paper 14106-6
Paper 14106-6
Toward a rigorous nomenclature for three mirrors anastigmat
14 April 2026 • 14:10 - 14:30 CEST | Madrid 2/Salon 4 (Niveau/Level 0)
Abstract
Unobscured aperture reflective optical systems (such as TMAs, 4MAs,…) are widely used in space missions (CO2M, Pleiades,...) for their optical qualities, but the absence of systematic nomenclature complicates their classification and design, especially as Freeform optics diversify configurations. Traditionally, systems are identified by designer’s name or broad labels, which inadequately describe modern geometries. This work proposes a rigorous, additive nomenclature for multimirror anastigmatic systems, using compact notation to encode key features like mirror shapes and beam paths. This approach clarifies optical layouts, boosts understanding, and streamlines communication, aiding both classification and exploration.
Presenter
Nicolas Tetaz
Thales Alenia Space (France)
Since 2011, N.TETAZ has been working in the optical department at Thales Alenia Space (TAS), focusing specifically on advanced projects. Beginning in 2016, he took on the crucial responsibility of supervising the optical aspects of all advanced projects at TAS. This comprehensive oversight has enabled him to develop deep expertise across a wide array of optical instruments, ranging from spectrometers and multispectral missions to high-resolution telescopes for both CNES missions and export programs.
As a specialist in optical design he has been entrusted with the design and review of most of the optical systems proposed by TAS, demonstrating an outstanding capacity for innovation, as evidenced by more than 15 patents. Through participation in over a dozen phase 0 or A/B1 projects, he has gained invaluable experience in identifying and addressing the critical challenges of manufacturing, dev