Interferometric Metrology for the TMT Primary Mirror Segments: Design and Analysis

J. Beverage; J. H. Burge; J. H. Burge; J. Blanchard; B. Lewis; C. Zhao; M. Valente

doi:10.1364/OFT.2019.OM3A.5

Optical Design and Fabrication 2019 (Freeform, OFT)
OSA Technical Digest (Optica Publishing Group, 2019),
paper OM3A.5
•https://doi.org/10.1364/OFT.2019.OM3A.5

Interferometric Metrology for the TMT Primary Mirror Segments: Design and Analysis

J. Beverage, J. H. Burge, J. Blanchard, B. Lewis, C. Zhao, and M. Valente

Optical Fabrication and Testing 2019

Washington, DC United States
10–12 June 2019
ISBN: 978-1-943580-60-6

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Large Optics Manufacturing and Testing (OM3A)

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J. Beverage, J. H. Burge, J. Blanchard, B. Lewis, C. Zhao, and M. Valente, "Interferometric Metrology for the TMT Primary Mirror Segments: Design and Analysis," in Optical Design and Fabrication 2019 (Freeform, OFT), OSA Technical Digest (Optica Publishing Group, 2019), paper OM3A.5.

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Abstract

The Thirty Meter Telescope uses a hyperboloidal f/1 primary mirror made from 492 1.4-m segments with 82 different aspheric prescriptions. Each segment will be measured using Fizeau interferometry with spherical reference surface and CGH aspheric correction.

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