Ultra-lightweight, actively controlled mirrors for space

Research output: Chapter in Book/Report/Conference proceedingChapter

Abstract

Advanced technology mirrors for large space telescopes are being developed that use thin facesheets controlled by actuators. This concept was proven with a 50 cm prototype and is now being implemented for a 2 m cryogenic mirror that weighs only 40 kg. The reflective surface is provided by a glass facesheet, typically 2 mm thick, which is attached to a stiff lightweight support structure through a set of screw-type actuators. This system allows periodic adjustments with the actuators to maintain the surface figure as measured from a wavefront sensor. The optical surface accuracy and stability are maintained by the active system, which can be made using lightweight carbon fiber laminates that economically provide stiffness.

Original languageEnglish (US)
Title of host publicationProceedings of SPIE - The International Society for Optical Engineering
PublisherSociety of Photo-Optical Instrumentation Engineers
Pages84-85
Number of pages2
Volume3749
StatePublished - 1999
EventProceedings of the 1999 18th Congress of the International Commission for Optics (ICO XVIII): Optics for the Next Millennium - San Francisco, CA, USA
Duration: Aug 2 1999Aug 6 1999

Other

OtherProceedings of the 1999 18th Congress of the International Commission for Optics (ICO XVIII): Optics for the Next Millennium
CitySan Francisco, CA, USA
Period8/2/998/6/99

Fingerprint

Actuators
actuators
mirrors
Space telescopes
Time varying systems
screws
Wavefronts
carbon fibers
Hubble Space Telescope
Cryogenics
laminates
Carbon fibers
Laminates
cryogenics
stiffness
Mirrors
adjusting
prototypes
Stiffness
Glass

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Condensed Matter Physics

Cite this

Burge, J. H. (1999). Ultra-lightweight, actively controlled mirrors for space. In Proceedings of SPIE - The International Society for Optical Engineering (Vol. 3749, pp. 84-85). Society of Photo-Optical Instrumentation Engineers.

Ultra-lightweight, actively controlled mirrors for space. / Burge, James H.

Proceedings of SPIE - The International Society for Optical Engineering. Vol. 3749 Society of Photo-Optical Instrumentation Engineers, 1999. p. 84-85.

Research output: Chapter in Book/Report/Conference proceedingChapter

Burge, JH 1999, Ultra-lightweight, actively controlled mirrors for space. in Proceedings of SPIE - The International Society for Optical Engineering. vol. 3749, Society of Photo-Optical Instrumentation Engineers, pp. 84-85, Proceedings of the 1999 18th Congress of the International Commission for Optics (ICO XVIII): Optics for the Next Millennium, San Francisco, CA, USA, 8/2/99.
Burge JH. Ultra-lightweight, actively controlled mirrors for space. In Proceedings of SPIE - The International Society for Optical Engineering. Vol. 3749. Society of Photo-Optical Instrumentation Engineers. 1999. p. 84-85
Burge, James H. / Ultra-lightweight, actively controlled mirrors for space. Proceedings of SPIE - The International Society for Optical Engineering. Vol. 3749 Society of Photo-Optical Instrumentation Engineers, 1999. pp. 84-85
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