29 July 2016 APERTURE: a precise extremely large reflective telescope using re-configurable elements
Author Affiliations +
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.
© (2016) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
M. P. Ulmer, M. P. Ulmer, V. L. Coverstone, V. L. Coverstone, J. Cao, J. Cao, Y.-W. Chung, Y.-W. Chung, M.-C. Corbineau, M.-C. Corbineau, A. Case, A. Case, B. Murchison, B. Murchison, C. Lorenz, C. Lorenz, G. Luo, G. Luo, J. Pekosh, J. Pekosh, J. Sepulveda, J. Sepulveda, A. Schneider, A. Schneider, X. Yan, X. Yan, S. Ye, S. Ye, } "APERTURE: a precise extremely large reflective telescope using re-configurable elements", Proc. SPIE 9904, Space Telescopes and Instrumentation 2016: Optical, Infrared, and Millimeter Wave, 99041I (29 July 2016); doi: 10.1117/12.2231679; https://doi.org/10.1117/12.2231679


Back to Top