Lightweight optical segment prototype for adaptive optics manufactured by hot slumping

Details Lightweight optical segment prototype for adaptive optics manufactured by hot slumping Lightweight optical segment prototype for adaptive optics manufactured by hot slumping

Jul 2008

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008spie.7015e.104c&link_type=abstract

Adaptive Optics Systems. Edited by Hubin, Norbert; Max, Claire E.; Wizinowich, Peter L. Proceedings of the SPIE, Volume 7015

Physics

Optics

Scientific paper

In the framework of the E-ELT Design Study financed by the European Community under OPTICON-FP6, the INAFAstronomical Observatory of Brera (INAF-OAB) has developed a technique for the manufacturing of thin optical segments. This study has the potential to fulfill the requirements of speed of production, contained costs and good optical quality for adaptive optics mirrors of the future. Following this approach these shells are produced by means of an hot slumping technique in which an initially flat thin BorofloatTM glass sheet is placed onto a high quality ceramic mold, used as a master, to impart a precise shape to the glass by means of a thermal cycle. The thickness of these shells is of about 1.7 mm, making the optical surface very floppy and easy to be deformed. A previous investigation made on small size segments (diam. 130 mm) has shown quite encouraging results. The final goal of this study is to produce a concave spherical mirror prototype of 500 mm diameter. In this paper we report the last results of this effort in scaling-up the procedure and related problems concerning the optical testing.

Affiliated with

Also associated with

No associations

Rating

Lightweight optical segment prototype for adaptive optics manufactured by hot slumping 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 Lightweight optical segment prototype for adaptive optics manufactured by hot slumping, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Lightweight optical segment prototype for adaptive optics manufactured by hot slumping will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-791830