Primary mirror segment fabrication for CELT

Details Primary mirror segment fabrication for CELT Primary mirror segment fabrication for CELT

Jul 2000

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2000spie.4003...43m&link_type=abstract

Proc. SPIE Vol. 4003, p. 43-58, Optical Design, Materials, Fabrication, and Maintenance, Philippe Dierickx; Ed.

Physics

1

Scientific paper

The primary mirror of the proposed California Extremely Large Telescope is a 30-meter diameter mosaic of hexagonal segments. An initial design calls for about a thousand segments with a hexagon side length of 0.5 meters, a primary-mirror focal ratio of 1.5, and a segment surface quality of about 20 nanometers rms. We describe concepts for fabricating these segments.

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