Performance of the four 8.2-m ZERODUR mirror blanks for the ESO/VLT

Details Performance of the four 8.2-m ZERODUR mirror blanks for the ESO/VLT Performance of the four 8.2-m ZERODUR mirror blanks for the ESO/VLT

Mar 1997

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997spie.2871..405m&link_type=abstract

Proc. SPIE Vol. 2871, p. 405-415, Optical Telescopes of Today and Tomorrow, Arne L. Ardeberg; Ed.

Computer Science

Performance

Scientific paper

We describe the project management procedure applied to the manufacture of 8.2 m Zerodur blanks. Such a complex, challenging task needs detailed organization from planning via implementation to realization. Some examples of inspection and handling procedures are presented in detail. The excellent performance of all four 8.2 m Zerodur blanks is demonstrated with some characteristic properties like geometrical dimensions, internal quality and coefficient of thermal expansion. The delivery of the fourth blank in 1996 represents the culmination of a decade long development and production project.

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