Fabrication and Alignment Issues for Segmented Mirror Telescopes

Details Fabrication and Alignment Issues for Segmented Mirror Telescopes Fabrication and Alignment Issues for Segmented Mirror Telescopes

May 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004apopt..43.2632p&link_type=abstract

Applied Optics, Volume 43, Issue 13, pp. 2632-2642 (2004).

Physics

Optics

Optical Testing, Telescopes, Optical Fabrication, Mirrors

Scientific paper

There is a great demand for new telescopes that use larger primary mirrors to collect more light. Because of the difficulty in the fabrication of mirrors larger than 8 m as a single piece, they must be made with numerous smaller segments. The segments must fit together to create the effect of a single mirror, which presents unique challenges for fabrication and testing that are absent for monolithic optics. This is especially true for the case of a highly aspheric mirror required to make a short two-mirror telescope. We develop the relationship between optical performance of the telescope and errors in the manufacture and operation of the individual segments.

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