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Conferences > META_PLAS > 2008 > JWD > JWD7
  • Frontiers in Optics 2008/Laser Science XXIV/Plasmonics and Metamaterials/Optical Fabrication and Testing
  • OSA Technical Digest (CD) (Optica Publishing Group, 2008),
  • paper JWD7
  • •https://doi.org/10.1364/OFT.2008.JWD7

Scanning Pentaprism Measurements of Off-axis Aspherics

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

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Abstract

We have developed a scanning pentaprism system to measure off-axis paraboloidal 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.

© 2008 Optical Society of America

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