Design and analysis of isostatic mounts on a spaceborne lightweight primary mirror

C. Y. Chan, Y. C. Chen, S. T. Chang, T. M. Huang, M. Y. Hsu

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

8 Scopus citations


The paper is aimed at obtaining the optimum isostatic mount configuration for a ZERODUR® primary mirror with a predesigned lightweight configuration on the back for a space Cassegrain telescope. The finite element analysis and Zernike polynomial fitting based on the Taguchi method are applied to the whole optimization process. Under the integrated optomechanical analysis, three isostatic mounts are bonded to the center of gravity of the mirror. Geometrical control factors and levels have been selected to minimize the optical aberrations under self-weight loading. The optimum isostatic mount with the least induced astigmatism value is finally attained under the Taguchi method.

Original languageEnglish
Title of host publicationOptomechanical Engineering 2013
StatePublished - 2013
EventOptomechanical Engineering 2013 - San Diego, CA, United States
Duration: 26 Aug 201329 Aug 2013

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X


ConferenceOptomechanical Engineering 2013
Country/TerritoryUnited States
CitySan Diego, CA


  • Taguchi method
  • Zernike polynomial fitting
  • finite element analysis
  • isostatic mount
  • optical aberration


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