@inproceedings{7123df77e45949998ec6c1187ff9f8b2,
title = "Manufacture of Segments for Extremely Large Telescopes: a New Perspective",
abstract = "We consider the production-route for aspheric segments for extremely large telescopes. The classical stressed-mirror polishing route followed by ion-figuring is introduced, leading to consideration of a new route combining precision aspheric grinding with computer-controlled polishing. We present estimates of process times in the polishing and grinding phases, based on scaling previous experimental results, and outline the next stage of the process development project. We are optimistic that the new route will be capable of faster processing with reduced risk, and will free the telescope and enclosure designers from the dimensional constraints imposed by segment asphericity.",
keywords = "Polishing, Aspheric lenses, Optical Spheres, Mirrors, Surface finishing, Large telescopes, Manufacturing, Telescopes, Interferometers, Standards development",
author = "Walker, {D. D.} and P. Shore",
year = "2004",
month = jul,
day = "7",
doi = "10.1117/12.566274",
language = "English",
isbn = "9780819452993",
volume = "5382",
series = "Proceedings of SPIE - The International Society for Optical Engineering",
publisher = "SPIE",
pages = "277--284",
editor = "Ardeberg, {Arne L.} and Torben Andersen",
booktitle = "Second Backaskog Workshop on Extremely Large Telescopes",
address = "United States",
note = "Second Backaskog Workshop on Extremely Large Telescopes ; Conference date: 09-09-2003 Through 11-09-2003",
}