Design and component test results of the LSST Camera L1-L2 lens assembly

A. Barto, S. Winters, James H Burge, D. Davies, H. Doty, R. Richer, P. Seyforth

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Scopus citations

Abstract

The Large Synoptic Survey Telescope (LSST) camera will be the largest camera ever constructed for astronomy. When light enters the camera it will first pass through the two large lenses of the L1-L2 Lens Assembly. This assembly consists of a 1.6 m spherical lens and a 1.2 m aspheric lens held in critical alignment by a carbon fiber composite structure. The structure is mounted to the camera structure by six adjustable struts, which provide the mechanism to align the L1-L2 Assembly to the rest of the camera optical system. Final optical performance of this assembly is based upon lens figure, lens alignment, and alignment stability. With manufacture of the individual components of the L1-L2 Lens assembly and testing of the integrated composite structure nearing completion, design, design drivers, and test results will be presented.

Original languageEnglish (US)
Title of host publicationAstronomical Optics
Subtitle of host publicationDesign, Manufacture, and Test of Space and Ground Systems
PublisherSPIE
Volume10401
ISBN (Electronic)9781510612594
DOIs
StatePublished - Sep 7 2017
Externally publishedYes
EventAstronomical Optics: Design, Manufacture, and Test of Space and Ground Systems 2017 - San Diego, United States
Duration: Aug 6 2017Aug 10 2017

Other

OtherAstronomical Optics: Design, Manufacture, and Test of Space and Ground Systems 2017
CountryUnited States
CitySan Diego
Period8/6/178/10/17

Keywords

  • composite
  • critical alignment
  • ground telescope
  • large optics
  • lens
  • LSST
  • optical performance

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

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  • Cite this

    Barto, A., Winters, S., Burge, J. H., Davies, D., Doty, H., Richer, R., & Seyforth, P. (2017). Design and component test results of the LSST Camera L1-L2 lens assembly. In Astronomical Optics: Design, Manufacture, and Test of Space and Ground Systems (Vol. 10401). [104010N] SPIE. https://doi.org/10.1117/12.2274808