Lightweight tip-tilt mirror in correlation tracker system of the Space Solar Telescope

Rui Zhang; Shimo Yang; Aimin Jiang

doi:10.1117/12.666874

9 December 2005 Lightweight tip-tilt mirror in correlation tracker system of the Space Solar Telescope

Rui Zhang, Shimo Yang, Aimin Jiang

Proceedings Volume 6024, ICO20: Optical Devices and Instruments; 60241S (2005) https://doi.org/10.1117/12.666874
Event: ICO20:Optical Devices and Instruments, 2005, Changchun, China

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.

Citation Download Citation

Rui Zhang, Shimo Yang, and Aimin Jiang "Lightweight tip-tilt mirror in correlation tracker system of the Space Solar Telescope", Proc. SPIE 6024, ICO20: Optical Devices and Instruments, 60241S (9 December 2005); https://doi.org/10.1117/12.666874

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