Technology for eight-metre primary mirrors

Details Technology for eight-metre primary mirrors Technology for eight-metre primary mirrors

Jul 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990spie.1236..586b&link_type=abstract

IN: Advanced technology optical telescopes IV; Proceedings of the Meeting, Tucson, AZ, Feb. 12-16, 1990. Part 2 (A91-23201 08-89

Physics

Cost Reduction, Mirrors, Optical Materials, Reflecting Telescopes, Ceramics, Polishing, Silicon Oxides, Technology Assessment

Scientific paper

The cost of an 8-m telescope is still too high for most national observatories. Cost reductions must involve new technology for the primary mirror: its material and figuring, its mass, handling and the aluminizing plant. The present scheme addresses these problems using some features of the Keck technology, but is simplified. Consideration is given to a segmented mirror in which the segments are radially cut sectors. The sectors for an 8-m aperture will fit inside a 4-m aluminizing plant (which already exists on some sites, and in any event is cheaper than an 8-m plant). Zero-expansion material (glass-ceramic or fused silica) may be used. The model thickness is about 10 cm. The proposed method of production is to figure the whole set assembled as a single mirror. No cutting takes place after figuring.

Affiliated with

Also associated with

No associations

Rating

Technology for eight-metre primary mirrors does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Technology for eight-metre primary mirrors, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Technology for eight-metre primary mirrors will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-937974