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http://dx.doi.org/10.3807/KJOP.2020.31.6.328

Study of the Analysis Method for the Aspherical Tolerance of a Korsch Telescope Using a Q Polynomial  

Jun, Won-Kyoun (Department of Nano-optical Engineering, Korea Polytechnic University)
Lee, Han-Yul (Department of Nano-optical Engineering, Korea Polytechnic University)
Lee, Sang-min (Department of Optics and Photonics, Yonsei University)
Kim, Ki-hwan (Department of Optics and Photonics, Yonsei University)
Park, Seung Han (Department of Optics and Photonics, Yonsei University)
Jung, Mee-Suk (Department of Nano-optical Engineering, Korea Polytechnic University)
Publication Information
Korean Journal of Optics and Photonics / v.31, no.6, 2020 , pp. 328-333 More about this Journal
Abstract
In this paper, we study the analysis method for the aspherical tolerance of a Korsch telescope using a Q polynomial. It is important to analyze the tolerances for evaluating quality in high-precision fabrication of aspherical reflectors for high-resolution satellites. Thus we express the aspheric surface in terms of a Q polynomial in which each coefficient term is composed independently, and analyze the tolerance of a Korsch telescope. We also analyze the tolerance using Zernike fringe sag, which expresses the shape error of an aspherical mirror. By comparing the two results, we confirm that the Q-polynomial method can be used to analyze an aspherical mirror.
Keywords
Satellite optics; Reflector; Forbes aspheric; Optical design;
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