@inproceedings{bb75c2c17f85487bb771c98e3d35b14c,
title = "Process optimization for efficient convergence in large optics fabrication",
abstract = "Large optic fabrication is a delicate and time consuming process. Obtaining a large prime optic is often in the critical path of a project and poses a serious risk to both the schedule and budget. The Optical Engineering and Fabrication Facility (OEFF) at the College of Optical Sciences, the University of Arizona, has developed a new way of optimizing its large optic fabrication process for maximum efficiency in convergence. The new process optimization takes the amount of stock material removal, tool characteristics, metrology uncertainty, optic prescription, optic material properties, and resource availability as input parameters and provides an optimized process along with an achievable convergence. This paper presents technical details of the new process optimization and demonstrates performance on 6.5m mirror fabrication at the University of Arizona. Two case studies for an 8.4m GMT off-axis primary mirror segment and a 3.1m TMT convex secondary mirror fabrication are also presented.",
keywords = "Aspheric, Computer controlled polishing, Fabrication, Large optics, Testing",
author = "Oh, {Chang Jin} and Lowman, {Andrew E.} and Martin, {Hubert M.} and Smith, {Greg A.}",
note = "Publisher Copyright: {\textcopyright} 2018 SPIE.; Advances in Optical and Mechanical Technologies for Telescopes and Instrumentation III 2018 ; Conference date: 10-06-2018 Through 15-06-2018",
year = "2018",
doi = "10.1117/12.2314350",
language = "English (US)",
isbn = "9781510619654",
series = "Proceedings of SPIE - The International Society for Optical Engineering",
publisher = "SPIE",
editor = "Roland Geyl and Ramon Navarro",
booktitle = "Advances in Optical and Mechanical Technologies for Telescopes and Instrumentation III",
}