Aluminium mirror technology at ESO - Positive results obtained with 1.8-m test mirrors

Details Aluminium mirror technology at ESO - Positive results obtained with 1.8-m test mirrors Aluminium mirror technology at ESO - Positive results obtained with 1.8-m test mirrors

Sep 1991

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991msngr..65...66d&link_type=abstract

ESO Messenger (ISSN 0722-6691), no. 65, p. 66-68.

Astronomy and Astrophysics

Astronomy

Aluminum Coatings, Mirrors, Telescopes, Thermal Stability, Welded Joints, Astronomical Observatories, Surface Geometry, Systems Engineering

Scientific paper

Testing of astronomical mirror blanks based on build-up and electron-beam welding is described. It is concluded that both aluminum mirror technologies, build-up and electron-beam welding, proved to be adequate for the manufacturing of 2-m-class astronomical mirrors. Optical tests were very successful and extrapolation to larger diameters is considered to be feasible.

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