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Proceedings Paper

Composite technology for lightweight optical mirrors
Author(s): Bernd Abt; Gunter Helwig; Dietmar Scheulen
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Paper Abstract

Reflectors for antennas using fiber-composite technology today represent the state of the art, and mirrors for radio telescopes occasionally are already made using this technology. For even shorter wavelengths, including the visible light, glass mirrors have been used almost exclusively and, rarely, metal mirrors (for example made of beryllium). In general a surface contour accuracy of about 1/20 wavelength is required. Years of development work based on experience gained in aircraft construction and space technology made it possible to improve fiber-composite technology to such an extent that a substitute for heavy glass has become feasible, opening up new applications for lighter and/or larger mirrors.

Paper Details

Date Published: 1 July 1990
PDF: 10 pages
Proc. SPIE 1236, Advanced Technology Optical Telescopes IV, (1 July 1990); doi: 10.1117/12.19239
Show Author Affiliations
Bernd Abt, Dornier GmbH (Germany)
Gunter Helwig, Dornier GmbH (Germany)
Dietmar Scheulen, Dornier GmbH (Germany)

Published in SPIE Proceedings Vol. 1236:
Advanced Technology Optical Telescopes IV
Lawrence D. Barr, Editor(s)

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