The simulation study of thermal design method for space optical window

Yufeng Mao; Bian Jiang; Junfeng Du; Jiajia Yin

doi:10.1117/12.2653188

9 January 2023 The simulation study of thermal design method for space optical window

Yufeng Mao, Bian Jiang, Junfeng Du, Jiajia Yin

Proceedings Volume 12507, Advanced Optical Manufacturing Technologies and Applications 2022; and 2nd International Forum of Young Scientists on Advanced Optical Manufacturing (AOMTA and YSAOM 2022); 1250702 (2023) https://doi.org/10.1117/12.2653188
Event: 2nd International Forum of Young Scientists on Advanced Optical Manufacturing (AOMTA and YSAOM 2022), 2022, Changchun, China

Abstract

The optical window of space optical system is important for optical observation. It been used to isolate the extreme space environment and protect precision optical elements. There is no thermal design for optical windows on traditional space systems. However, under the space thermal alternation application environments, the temperature change can lead to deformation of optical elements which will cause image distortion. Especially for the large-aperture optical system. The study on thermal design for space optical window becomes very meaningful. In this paper, by the way of heat conduction and radiation, two available heating region (the window frame and the light baffle inner surface) are utilized to indirectly affect the temperature of space optical window. Three thermal design methods are presented, and the effects of different methods have been evaluated by the simulation study on a fictional LEO earth camera’s optical window. The results show that the thermal design of heating two available region can both reduce the window’s temperature difference and improve its optical performance. Especially, the effect of heating frame is more significant. This study can be used as a reference for the thermal design and thermal control strategy of large aperture space optical window in the future.

Citation Download Citation

Yufeng Mao, Bian Jiang, Junfeng Du, and Jiajia Yin "The simulation study of thermal design method for space optical window", Proc. SPIE 12507, Advanced Optical Manufacturing Technologies and Applications 2022; and 2nd International Forum of Young Scientists on Advanced Optical Manufacturing (AOMTA and YSAOM 2022), 1250702 (9 January 2023); https://doi.org/10.1117/12.2653188

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KEYWORDS

Windows

Astronomical imaging

Thermography

Optical analysis

Optical design

Wavefronts

Cameras

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