The Bulletin of The Korean Astronomical Society (천문학회보)
- Volume 45 Issue 1
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- Pages.66.3-66.3
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- 2020
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- 1226-2692(pISSN)
Optical Design for UVOMPIS and Design Concept of the Mirror Holder
- Park, Woojin (Kyung Hee University) ;
- Chang, Seunghyuk (Center for Integrated Smart Sensors, Korea Advanced Institute of Science and Technology (KAIST)) ;
- Pak, Soojong (Kyung Hee University) ;
- Han, Jimin (Kyung Hee University) ;
- Ahn, Hojae (Kyung Hee University) ;
- Lee, Sunwoo (Kyung Hee University) ;
- Kim, Geon Hee (Korea Basic Science Institute) ;
- Lee, Dae-Hee (Korea Astronomy and Space Science Institute)
- Published : 2020.10.13
Abstract
We present the optical design of Linear Astigmatism Free - Three Mirror System (LAF-TMS) D200 for UVO-Multiband Polarizing Imager System (UVOMPIS). LAF-TMS D200 is the off-axis wide-field telescope with EPD = 200 mm, F/2, and Field of View (FoV) = 2° × 4°. Its optical mirrors are optimized to freeform surfaces for high-quality optical performance over a wide FoV. The proposed mirror holder consists of four aluminum optomechanical modules that have applied for LAF-TMS D150 which is a prototype of the LAF-TMS system. It can accurately mount mirrors and also can sustain from vibration environments. As a feasibility study, quasi-static, modal, harmonic, and random vibration analyses have been performed to LAF-TMS D150 optomechanical structure under the qualification level of the Soyuz-2/Fregat launch system. We evaluate the vibration analysis results in terms of von Mises stress and Margin of Safety.
Keywords