| Autor: |
George Gardopee, François Piché, Ralf Jedamzik, Martin Schaefer, John W. Pepi, Volker Seibert, Thomas Westerhoff, Antoine Leys, Tony Hull, Andrew R. Clarkson |
| Rok vydání: |
2012 |
| Předmět: |
|
| Zdroj: |
SPIE Proceedings. |
| ISSN: |
0277-786X |
| DOI: |
10.1117/12.926807 |
| Popis: |
Previously we established that the combination of new machining parameters for openbacked monolithic lightweighted ZERODUR® mirror substrates, coupled with new methods for optical finishing of aggressively lightweighted mirrors, have relieved classical mirror design constraints imposed upon 1.2m diameter lightweight mirrors. We demonstrate that openback mirror substrates now offer comparable mass, Eigenfrequency and substructure print-through performance to the sandwich-mirror architecture, but with considerably less manufacturing effort than for sandwich mirrors. Here we extend the analyses of the first paper from 1.2m diameter down to 0.6m in diameter and up to 2.4m diameter and 4m diameter mirrors. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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