17 July 2015 Optimization study on the primary mirror lightweighting of a remote sensing instrument
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Proceedings Volume 9524, International Conference on Optical and Photonic Engineering (icOPEN 2015); 95240T (2015); doi: 10.1117/12.2187638
Event: International Conference on Optical and Photonic Engineering (icOPEN2015), 2015, Singapore, Singapore
Abstract
Remote sensing instrument (RSI) is used to take images for ground surface observation, which will be exposed to high vacuum, high temperature difference, gravity, 15 g-force and random vibration conditions and other harsh environments during operation. While designing a RSI optical system, not only the optical quality but also the strength of mechanical structure we should be considered. As a result, an optimization method is adopted to solve this engineering problem. In the study, a ZERODUR® mirror with a diameter of 466 mm has been chosen as the model and the optimization has been executed by combining the computer-aided design, finite element analysis, and parameter optimization software. The optimization is aimed to obtain the most lightweight mirror with maintaining structural rigidity and good optical quality. Finally, the optimum optical mirror with a lightweight ratio of 0.55 is attained successfully.
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Chia-Yen Chan, Bo-Kai Huang, Zhen-Ting You, Yi-Cheng Chen, Ting-Ming Huang, "Optimization study on the primary mirror lightweighting of a remote sensing instrument", Proc. SPIE 9524, International Conference on Optical and Photonic Engineering (icOPEN 2015), 95240T (17 July 2015); doi: 10.1117/12.2187638; http://dx.doi.org/10.1117/12.2187638
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KEYWORDS
Mirrors

Computer aided design

Remote sensing

Finite element methods

Lightweight mirrors

Optimization (mathematics)

Mirror structures

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