Lightweight SiC foamed mirrors for space applications

被引：15

作者：

Novi, A

Basile, G

Citterio, O

Ghigo, M

Caso, A

Cattaneo, G

Svelto, GF

机构：

[1] Officine Galileo, Alenia Difesa, 50013 Campi Bisenzio - Firenze, via A.Einstein

[2] Osservatorio Astronomico Brera, 22055 Merate, via E.Bianchi

[3] Bettini S.P.A, 23804 Monte Marenzo (LC), via Industriale

[4] Agenzia Spaziale Italiana, 00198 Roma, Viale Liegi

来源：

OPTOMECHANICAL DESIGN AND ENGINEERING 2001 | 2001年 / 4444卷

关键词：

silicon carbide; lightweight mirror; foam core; sandwich; space optics; ion beam figuring;

D O I：

10.1117/12.447323

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

By combining the excellent intrinsic thermo-mechanical properties of the silicon carbide (SiC) with a structural design based on a sandwich structure composed of two SiC face sheets deposited on a foam core of the same material, it is possible to manufacture very light and stiff mirrors for space applications, This paper presents some results of a technological development study, including the realisation of a lightweight athermalized SiC telescope with a 310 mm diameter foamed SiC primary mirror. An Ion Beam Figuring equipment has been developed to improve the optical quality of the mirror.

引用

页码：59 / 65

页数：3