CONFERENCE PROCEEDINGS
Advanced Search >
Home > Proceedings > Volume 9951 > Article
Translator Disclaimer
27 September 2016 Multispectral optical telescope alignment testing for a cryogenic space environment
Trent Newswander; Preston Hooser; James Champagne
Author Affiliations +
Proceedings Volume 9951, Optical System Alignment, Tolerancing, and Verification X; 995102 (2016) https://doi.org/10.1117/12.2237889
Event: SPIE Optical Engineering + Applications, 2016, San Diego, California, United States
Abstract
Multispectral space telescopes with visible to long wave infrared spectral bands provide difficult alignment challenges. The visible channels require precision in alignment and stability to provide good image quality in short wavelengths. This is most often accomplished by choosing materials with near zero thermal expansion glass or ceramic mirrors metered with carbon fiber reinforced polymer (CFRP) that are designed to have a matching thermal expansion. The IR channels are less sensitive to alignment but they often require cryogenic cooling for improved sensitivity with the reduced radiometric background. Finding efficient solutions to this difficult problem of maintaining good visible image quality at cryogenic temperatures has been explored with the building and testing of a telescope simulator. The telescope simulator is an onaxis ZERODUR® mirror, CFRP metered set of optics. Testing has been completed to accurately measure telescope optical element alignment and mirror figure changes in a cryogenic space simulated environment. Measured alignment error and mirror figure error test results are reported with a discussion of their impact on system optical performance.
© (2016) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Citation Download Citation
Trent Newswander, Preston Hooser, and James Champagne "Multispectral optical telescope alignment testing for a cryogenic space environment", Proc. SPIE 9951, Optical System Alignment, Tolerancing, and Verification X, 995102 (27 September 2016); https://doi.org/10.1117/12.2237889
PROCEEDINGS
 13 PAGES
DOWNLOAD PDF SAVE TO MY LIBRARY
SHARE
GET CITATION
< Previous Article
|
Next Article >
Advertisement
Advertisement
KEYWORDS
RELATED CONTENT
Subscribe to Digital Library
Receive Erratum Email Alert
Back to Top