100 years of mirror blanks from SCHOTT

Peter Hartmann; Hans F. Morian

doi:10.1117/12.566325

7 July 2004 100 years of mirror blanks from SCHOTT

Peter Hartmann, Hans F. Morian

Proceedings Volume 5382, Second Backaskog Workshop on Extremely Large Telescopes; (2004) https://doi.org/10.1117/12.566325
Event: Second Backaskog Workshop on Extremely Large Telescopes, 2003, Backaskog, Sweden

Abstract

A hundred years ago SCHOTT delivered the first mirror blank for astronomy, a 720 mm crown glass disk for the Waltz telescope of the Landessternwarte Heidelberg, Germany. Since then significant progress has been made. Larger blanks out of optical glass have been followed by borosilicate disks. In the beginning of the 1970s SCHOTT introduced the zero-expansion glass ceramic ZERODUR. It has been applied for outstanding astronomy projects both ground based and space-borne. The paper gives an overview over the highlights of the last hundred years with some prospects to present and future developments.

Citation Download Citation

Peter Hartmann and Hans F. Morian "100 years of mirror blanks from SCHOTT", Proc. SPIE 5382, Second Backaskog Workshop on Extremely Large Telescopes, (7 July 2004); https://doi.org/10.1117/12.566325

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