Physics – Optics
Scientific paper
Jan 1984
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984spie..444...23m&link_type=abstract
IN: Advanced technology optical telescopes II; Proceedings of the Meeting, London, England, September 5, 6, 1983 (A85-25230 10-8
Physics
Optics
Borosilicate Glass, Lens Design, Reflecting Telescopes, Apertures, Azimuth, Cassegrain Optics, Cost Reduction, Design Analysis, Honeycomb Structures, Infrared Telescopes, Mirrors, Modulus Of Elasticity, Poisson Ratio, Research And Development, Thermal Expansion
Scientific paper
A conceptual development status assessment is made for the design of the British Multi-Mirror, 18-m effective aperture telescope, which has proceeded on the basis of experience gained in design and construction of the 4.2-m Altazimuth telescope. The Multi-Mirror telescope's translating mirrors yield a reduction in telescope structure costs, and the use of borosilicate glass honeycomb mirrors having high stiffness/weight ratios furthers cost reductions by comparison with near-zero thermal expansion coefficient glass ceramics. The f/2 focal ratio allows for minimum tube structure lengths.
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