Machine for complete fabrication of 8-m class mirrors

Dean A. Ketelsen; Warren B. Davison; Scott T. DeRigne; W. Cary Kittrell

doi:10.1117/12.176234

1 June 1994 Machine for complete fabrication of 8-m class mirrors

Dean A. Ketelsen, Warren B. Davison, Scott T. DeRigne, W. Cary Kittrell

Proceedings Volume 2199, Advanced Technology Optical Telescopes V; (1994) https://doi.org/10.1117/12.176234
Event: 1994 Symposium on Astronomical Telescopes and Instrumentation for the 21st Century, 1994, Kailua, Kona, HI, United States

Abstract

The Large Optical Generator (LOG) was originally installed as a precision generator at the University of Arizona. It has since been relocated to the Steward Observatory Mirror Laboratory, where, in addition to its tasks as generator, it can be reconfigured as a polishing machine. As such, utilizing the Mirror Lab's stressed-lap techniques, LOG has recently finished a series of three 3.5 meter mirrors to high accuracy. It is currently configured as a generator for work on the 6.5 meter MMT upgrade. LOG's operating parameters and level of performance both as generator and polisher will be discussed, along with some of the unique safety features that have been built into its operation.

Citation Download Citation

Dean A. Ketelsen, Warren B. Davison, Scott T. DeRigne, and W. Cary Kittrell "Machine for complete fabrication of 8-m class mirrors", Proc. SPIE 2199, Advanced Technology Optical Telescopes V, (1 June 1994); https://doi.org/10.1117/12.176234

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