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Proceedings Paper

APERTURE: a precise extremely large reflective telescope using re-configurable elements
Author(s): M. P. Ulmer; V. L. Coverstone; J. Cao; Y.-W. Chung; M.-C. Corbineau; A. Case; B. Murchison; C. Lorenz; G. Luo; J. Pekosh; J. Sepulveda; A. Schneider; X. Yan; S. Ye
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Paper Abstract

One of the pressing needs for the UV-Vis is a design to allow even larger mirrors than the JWST primary at an affordable cost. We report here the results of a NASA Innovative Advanced Concepts phase 1 study. Our project is called A Precise Extremely large Reflective Telescope Using Reconfigurable Elements (APERTURE). The idea is to deploy a continuous membrane-like mirror. The mirror figure will be corrected after deployment to bring it into better or equal lambda/20 deviations from the prescribed mirror shape. The basic concept is not new. What is new is to use a different approach from the classical piezoelectric-patch technology. Instead, our concept is based on a contiguous coating of a so called magnetic smart material (MSM). After deployment a magnetic write head will move on the non-reflecting side of the mirror and will generate a magnetic field that will produce a stress in the MSM that will correct the mirror deviations from the prescribed shape.

Paper Details

Date Published: 29 July 2016
PDF: 12 pages
Proc. SPIE 9904, Space Telescopes and Instrumentation 2016: Optical, Infrared, and Millimeter Wave, 99041I (29 July 2016); doi: 10.1117/12.2231679
Show Author Affiliations
M. P. Ulmer, Northwestern Univ. (United States)
V. L. Coverstone, Univ. of Illinois at Urbana-Champaign (United States)
J. Cao, Northwestern Univ. (United States)
Y.-W. Chung, Northwestern Univ. (United States)
M.-C. Corbineau, Univ. of Illinois at Urbana-Champaign (United States)
A. Case, Univ. of Illinois at Urbana-Champaign (United States)
B. Murchison, Univ. of Illinois at Urbana-Champaign (United States)
C. Lorenz, Univ. of Illinois at Urbana-Champaign (United States)
G. Luo, Univ. of Illinois at Urbana-Champaign (United States)
J. Pekosh, Univ. of Illinois at Urbana-Champaign (United States)
J. Sepulveda, Univ. of Illinois at Urbana-Champaign (United States)
A. Schneider, Northwestern Univ. (United States)
X. Yan, Northwestern Univ. (United States)
S. Ye, Northwestern Univ. (United States)


Published in SPIE Proceedings Vol. 9904:
Space Telescopes and Instrumentation 2016: Optical, Infrared, and Millimeter Wave
Howard A. MacEwen; Giovanni G. Fazio; Makenzie Lystrup; Natalie Batalha; Nicholas Siegler; Edward C. Tong, Editor(s)

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