Spin-cast ZERODUR mirror substrates of the 8 m class and lightweight substrates for secondary mirrors

Besides many other applications, ZERODUR is an excellent material for mirror substrates of astronomical telescopes. The new requirements in the present day development of modern astronomical telescopes are discussed, including the needs for larger primary mirrors (8-meter class) and lower weight sec...

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Veröffentlicht in:	Astrophysics and space science 1989-10, Vol.160 (1-2), p.193-197
Hauptverfasser:	Hoeness, Hartmut W., Mueller, Rudolf, Rodeck, Erich W., Siebers, Friedrich B.
Format:	Artikel
Sprache:	eng
Online-Zugang:	Volltext
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