Ultra-lightweighted HB-Cesic one-meter mirror demonstrator

Matthias R. Krödel; Peter Hofbauer

doi:10.1117/12.856251

22 July 2010 Ultra-lightweighted HB-Cesic one-meter mirror demonstrator

Matthias R. Krödel, Peter Hofbauer

Proceedings Volume 7739, Modern Technologies in Space- and Ground-based Telescopes and Instrumentation; 77392K (2010) https://doi.org/10.1117/12.856251
Event: SPIE Astronomical Telescopes + Instrumentation, 2010, San Diego, California, United States

Abstract

Future space missions, such as SPICA and DARWIN, require large, light-weighted, and stiff mirrors with excellent stability. During the past years, ECM fabricated a number of light-weighted mirrors. However, future large missions require further advances with light-weighting, pushing this technology to the limit possible with recently developed composite materials, new fabrication processes, and innovative designs. In 2009, ECM took steps in this direction by fabricating successfully an ultra-lightweighted HB-Cesic^® mirror demonstrator 1 m in size. We demonstrated that HB-Cesic^®, due to its extreme light-weighting capability and manufacturing versatility, combined with high stiffness, high mechanical strength, and low CTE at cryogenic temperatures, is able to fully meet the requirements of future large cryogenic space mirrors. In this paper we describe the fabrication process of this demonstrator and its physical characteristics.

Citation Download Citation

Matthias R. Krödel and Peter Hofbauer "Ultra-lightweighted HB-Cesic one-meter mirror demonstrator", Proc. SPIE 7739, Modern Technologies in Space- and Ground-based Telescopes and Instrumentation, 77392K (22 July 2010); https://doi.org/10.1117/12.856251

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available