Physics – Optics
Scientific paper
Jan 2011
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011aas...21715717c&link_type=abstract
American Astronomical Society, AAS Meeting #217, #157.17; Bulletin of the American Astronomical Society, Vol. 43, 2011
Physics
Optics
Scientific paper
The advent of new requirements for intermediate and large telescopes has been accompanied by development of new processes and equipment to fabricate optics associated with these telescopes. We will discuss powerful new optical processing solutions that are being demonstrated. These methods offer extreme optical convergence of aspheric forms achieving demanding surface structure functions. Affected areas of astronomical telescope architecture include methods for rapid processing of segmented mirrors, and production of meniscus mirrors. We discuss finish and test of large turning flats as well as on-axis and off-axis aspheric primary and secondary mirrors. Furthermore, methods are now available to nearly fully mitigate substructure print-through of advanced lightweighted mirrors. Emerging optical fabrication solutions enlarge the design space for new generations of advanced astronomical telescopes.
Barentine J. B.
Canzian Blaise
Clarkson A.
Daniel James
Hull Tony
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