Cophasing methods for segmented mirrors

Allan Wirth

doi:10.1117/12.391514

20 July 2000 Cophasing methods for segmented mirrors

Allan Wirth

Proceedings Volume 4003, Optical Design, Materials, Fabrication, and Maintenance; (2000) https://doi.org/10.1117/12.391514
Event: Astronomical Telescopes and Instrumentation, 2000, Munich, Germany

Abstract

The results of a number of research projects related to the phasing of segmented telescope primaries are presented. The behavior of a segmented mirror controlled using edge position sensors is examined using the results of a numerical simulation. The performance of a novel approach to the optical sensing of piston differences is analyzed. The effect of segmented manufacturing errors on both the phasing control system and telescope performances is discussed. Finally, a concept for an `autonomous segment mirror' is presented and its feasibility assessed.

Citation Download Citation

Allan Wirth "Cophasing methods for segmented mirrors", Proc. SPIE 4003, Optical Design, Materials, Fabrication, and Maintenance, (20 July 2000); https://doi.org/10.1117/12.391514

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