Stretched membrane with electrostatic curvature (SMEC) mirrors for extremely large space telescopes

Details Stretched membrane with electrostatic curvature (SMEC) mirrors for extremely large space telescopes Stretched membrane with electrostatic curvature (SMEC) mirrors for extremely large space telescopes

Dec 2001

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001spie.4451..105s&link_type=abstract

Proc. SPIE Vol. 4451, p. 105-113, Optical Manufacturing and Testing IV, H. Philip Stahl; Ed.

Physics

1

Scientific paper

Very lightweight mirrors can be constructed by stretching a membrane to form a flat surface. Adding tension to the membrane, making it flat, can be done by discrete attachment points, or by using a continuous boundary. Such lightweight mirrors are very attractive for space telescopes where a 100-m aperture can be made up of smaller mirror segments. Adding a slight curvature to each segment simplifies the optical train. This article looks at the making of a curved membrane mirror, and demonstrates its use. Measurements of the flat membrane, and the curved figure will be shown.

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