30 September 2013 Cryogenic optical performance of a lightweighted mirror assembly for future space astronomical telescopes: correlating optical test results and thermal optical model
Author Affiliations +
Abstract
A 43cm diameter stacked core mirror demonstrator was interferometrically tested at room temperature down to 250 degrees Kelvin for thermal deformation. The 2.5m radius of curvature spherical mirror assembly was constructed by low temperature fusing three abrasive waterjet core sections between two CNC pocket milled face sheets. The 93% lightweighted Corning ULE® mirror assembly represents the current state of the art for future UV, optical, near IR space telescopes. During the multiple thermal test cycles, test results of interferometric test, thermal IR images of the front face were recorded in order to validate thermal optical model.
© (2013) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Ron Eng, Ron Eng, William R. Arnold, William R. Arnold, Markus A. Baker, Markus A. Baker, Ryan M. Bevan, Ryan M. Bevan, Gregory Burdick, Gregory Burdick, Michael R. Effinger, Michael R. Effinger, Darrell E. Gaddy, Darrell E. Gaddy, Brian K. Goode, Brian K. Goode, Craig Hanson, Craig Hanson, William D. Hogue, William D. Hogue, Jeffrey R. Kegley, Jeffrey R. Kegley, Charlie Kirk, Charlie Kirk, Steven P. Maffett, Steven P. Maffett, Gary W. Matthews, Gary W. Matthews, Richard D. Siler, Richard D. Siler, W. Scott Smith, W. Scott Smith, H. Philip Stahl, H. Philip Stahl, John M. Tucker, John M. Tucker, Ernest R. Wright, Ernest R. Wright, } "Cryogenic optical performance of a lightweighted mirror assembly for future space astronomical telescopes: correlating optical test results and thermal optical model", Proc. SPIE 8837, Material Technologies and Applications to Optics, Structures, Components, and Sub-Systems, 88370B (30 September 2013); doi: 10.1117/12.2025393; https://doi.org/10.1117/12.2025393
PROCEEDINGS
13 PAGES


SHARE
RELATED CONTENT

SIRTF telescope test facility
Proceedings of SPIE (September 29 1995)
SIRTF telescope test facility
Proceedings of SPIE (June 27 1996)
SIRTF telescope test facility: the first year
Proceedings of SPIE (October 14 1996)

Back to Top