Scanning pentaprism measurements of off-axis aspherics

Peng Su, James H. Burge, Brian Cuerden, Jose Sasian, Hubert M. Martin

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


We have developed a scanning pentaprism system to measure off-axis araboloidal mirrors such as those for the Giant Magellan Telescope primary mirror. The test was demonstrated on a 1.7-m diameter prototype and proved to have ~50nm rms precision.

Original languageEnglish (US)
Title of host publicationOptical Fabrication and Testing, OFT 2008
PublisherOptical Society of America
ISBN (Print)9781557528612
StatePublished - 2008
EventOptical Fabrication and Testing, OFT 2008 - Rochester, NY, United States
Duration: Oct 21 2008Oct 24 2008

Publication series

NameOptics InfoBase Conference Papers
ISSN (Electronic)2162-2701


OtherOptical Fabrication and Testing, OFT 2008
Country/TerritoryUnited States
CityRochester, NY

ASJC Scopus subject areas

  • Instrumentation
  • Atomic and Molecular Physics, and Optics


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