Design and simulation of lightweight mirror for space application

Author

Lin, Y.C. ; Lee, L.J. ; Chang, S.T. ; Huang, T.M. ; Hwang, C.H.

Author_Institution

Instrum. Technol. Res. Center, Nat. Appl. Res. Labs., Hsinchu

fYear

2009

fDate

1-3 April 2009

Firstpage

334

Lastpage

337

Abstract

The numerical simulation of lightweight mirrors, used in high resolution remote sensing instrument, can predict the mirror deformation caused by gravity and surrounding temperature. This article reports the design process and numerical simulation of lightweight mirror, which considers of the regular geometry, natural frequency and mirror surface deformation derived from gravity and thermal change. Furthermore, the optical performance of lightweight mirror is analyzed and predicted by Zernike polynomials fitting. The numerical result shows that the lightweight mirror geometry is obtained by this approach and the calculated deformation is below the requirements of optical design.

Keywords

Zernike polynomials; aerospace materials; mirrors; remote sensing; Zernike polynomial fitting; gravity effects; high-resolution remote sensing instrument; lightweight mirror; mirror surface deformation; natural frequency; regular geometry; space application; Frequency; Geometrical optics; Gravity; Instruments; Mirrors; Numerical simulation; Process design; Remote sensing; Surface fitting; Temperature sensors;

fLanguage

English

Publisher

ieee

Conference_Titel

Design, Test, Integration & Packaging of MEMS/MOEMS, 2009. MEMS/MOEMS '09. Symposium on

Conference_Location

Rome

Print_ISBN

978-1-4244-3874-7

Type

conf

Filename

4919485