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Proceedings Paper

Lightweight tip-tilt mirror in correlation tracker system of the Space Solar Telescope
Author(s): Rui Zhang; Shimo Yang; Aimin Jiang
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Paper Abstract

To compensate the image motion caused by random atmospheric turbulence and mechanical vibration, a high performance correlation tracker designed for the Space Solar Telescope (SST) has been realized in National Astronomical Observatories. Correlation tracker is to stabilize the image and provide the stabilized objective to CCD. The main optical telescope can obtain the highest spatial resolution and ensure the image processing. Tip-tilt mirror is the crucial element of the correlation tracker. The lightweight mirror is to adapt to work normally with space using and satisfy the space environmental requirement. Tip-tilt mirror's material is SiC. Confirming the appropriate joint with the platform and supporting mode through Finite Element Method. Then calculating the surface shape quality value (RMS) of the mirror effected by inertial load and temperature. The calculation results show that the tip-tilt mirror has enough stiffness and intensity. The mirror's surface shape quality value can satisfy the optical requirement of the correlation tracker system.

Paper Details

Date Published: 9 December 2005
PDF: 8 pages
Proc. SPIE 6024, ICO20: Optical Devices and Instruments, 60241S (9 December 2005); doi: 10.1117/12.666874
Show Author Affiliations
Rui Zhang, The National Astronomical Observatories (China)
Shimo Yang, The National Astronomical Observatories (China)
Aimin Jiang, The National Astronomical Observatories (China)

Published in SPIE Proceedings Vol. 6024:
ICO20: Optical Devices and Instruments
James C. Wyant; X. J. Zhang, Editor(s)

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