Extremely lightweight space telescope mirrors with integrated active figure control.

Details Extremely lightweight space telescope mirrors with integrated active figure control. Extremely lightweight space telescope mirrors with integrated active figure control.

Sep 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989spie.1114..365b&link_type=abstract

Conference on Active Telescope Systems, p. 365 - 371

Computer Science

Space Telescopes: Optical Design, Space Telescopes: Mirrors

Scientific paper

A concept for an extremely light weight primary mirror for a large space telescope is proposed. The mirror uses a sandwich structure composed of aluminum faceplates with an aluminum foam core. Modal analysis indicates that a fundamental frequency of 100 Hz can be obtained for a 6 meter diameter mirror with a tapered back and having a total mass of about 3500 kg. An array of thermal actuators embedded in the mirror corrects for figure errors.

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