Analysis of the optical surface properties in the indirect glass slumping

Anita Winter; Elias Breunig; Peter Friedrich; Laura Proserpio

doi:10.1117/12.2056892

25 July 2014 Analysis of the optical surface properties in the indirect glass slumping

Anita Winter, Elias Breunig, Peter Friedrich, Laura Proserpio

Proceedings Volume 9144, Space Telescopes and Instrumentation 2014: Ultraviolet to Gamma Ray; 914442 (2014) https://doi.org/10.1117/12.2056892
Event: SPIE Astronomical Telescopes + Instrumentation, 2014, Montréal, Quebec, Canada

Abstract

The demand for larger collecting areas in X-ray telescopes within the mass limits of the launcher creates the need for light-weight mirror materials. At our institute we develop the technology of indirect thermal slumping of thin glass sheets to manufacture light mirror segments. A crucial part of the development is the measurement of the glass surface, shape and thickness profile in order to evaluate the quality of the reproduction method. We describe the measurement set-up, the analysis method of the surface profile and the evaluation of thickness variations in the glass, as well as their influence on the final glass sheets.

Citation Download Citation

Anita Winter, Elias Breunig, Peter Friedrich, and Laura Proserpio "Analysis of the optical surface properties in the indirect glass slumping", Proc. SPIE 9144, Space Telescopes and Instrumentation 2014: Ultraviolet to Gamma Ray, 914442 (25 July 2014); https://doi.org/10.1117/12.2056892

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