Spin-cast ZERODUR mirror substrates of the 8 M class and lightweight substrates for secondary mirrors

Details Spin-cast ZERODUR mirror substrates of the 8 M class and lightweight substrates for secondary mirrors Spin-cast ZERODUR mirror substrates of the 8 M class and lightweight substrates for secondary mirrors

Oct 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989ap%26ss.160..193h&link_type=abstract

(Group of Optical and Infrared Astronomers in Japan, Astronomical Society of Japan, Inamori Foundation, et al., International Sy

Astronomy and Astrophysics

Astrophysics

Casting, Ceramics, Glass, Mirrors, Substrates, Telescopes, Astronomical Observatories, Crystal Structure, Mechanical Engineering, Structural Weight, Thermal Expansion

Scientific paper

Besides many other applications, ZERODUR is an excellent material for mirror substrates of astronomical telescopes. The new requirements in the present day development of modern astronomical telescopes are discussed, including the needs for larger primary mirrors (8-meter class) and lower weight secondary mirrors. Compared to conventional ones, new manufacturing techniques are considered for the manufacture of thin ZERODUR meniscus-shaped mirror substrates in the 8-meter class and for the production of lightweight secondary mirror substrates. The different steps described for the ZERODUR lightweight substrates include forming of the lightweighted structure during casting, fusion of individual components to a total structure, and lightweighting of a massive block by various mechanical machining methods.

Affiliated with

Also associated with

No associations

Rating

Spin-cast ZERODUR mirror substrates of the 8 M class and lightweight substrates for secondary 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 Spin-cast ZERODUR mirror substrates of the 8 M class and lightweight substrates for secondary mirrors, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Spin-cast ZERODUR mirror substrates of the 8 M class and lightweight substrates for secondary mirrors will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1527672