Korean Journal of Optics and Photonics (한국광학회지)

Optical Society of Korea (한국광학회)
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A Study on Performance and Sensitivity Improvement of an Off-axis TMA Telescope Optical System by Changing the Aperture-stop Position

조리개 위치 변경을 통한 비축 삼반사 망원경 광학계의 성능 및 민감도 개선 연구

  • Lee, Han-Yul (Department of Nano & Semiconductor Engineering, Korea Polytechnic University) ;
  • Jun, Won-Kyoun (Department of Nano & Semiconductor Engineering, Korea Polytechnic University) ;
  • Lee, Sang-min (Department of Optics and Photonics, Yonsei University) ;
  • Kim, Ki-hwan (Department of Optics and Photonics, Yonsei University) ;
  • Seo, Hyun-Ju (Satellite System 2 Team, Hanwha systems) ;
  • Park, Seung-Han (Department of Optics and Photonics, Yonsei University) ;
  • Jung, Mee-Suk (Department of Nano & Semiconductor Engineering, Korea Polytechnic University)
  • 이한율 (한국산업기술대학교 나노반도체공학과) ;
  • 전원균 (한국산업기술대학교 나노반도체공학과) ;
  • 이상민 (연세대학교 광과학공학과) ;
  • 김기환 (연세대학교 광과학공학과) ;
  • 서현주 (한화시스템 위성시스템 2팀) ;
  • 박승한 (연세대학교 광과학공학과) ;
  • 정미숙 (한국산업기술대학교 나노반도체공학과)
  • Received : 2020.11.19
  • Accepted : 2020.12.21
  • Published : 2021.02.25
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Abstract

In this paper we have studied an optical system according to the aperture position of an off-axis TMA telescope for satellites. An off-axis TMA telescope should have high resolution and wide field of view (FOV). In addition, the optical system should have a wide tolerance range, because it is structurally located off-axis and is difficult to assemble. However, there are differences in performance and sensitivity according to the aperture-stop position, so it is important to select a suitable aperture-stop position. Therefore, in this paper we have designed each off-axis TMA telescope according to the aperture-stop position, and have analyzed the performance and sensitivity to suggest a suitable aperture-stop position.

본 논문에서는 인공위성용 비축 삼반사 망원경의 조리개 위치에 따른 광학계 연구를 진행하였다. 인공위성 광학 탑재체로 주로 사용되는 비축 삼반사 망원경은 높은 해상도와 넓은 화각을 가져야 한다. 또한, 광학계가 구조적으로 비축상에 위치하여 조립이 어려우므로 넓은 공차범위를 가져야 한다. 그러나 조리개의 위치 선정에 따라 광학계의 성능 차이 이외에도 민감도의 차이가 있어, 사용 목적에 따른 적합한 조리개의 위치 선정이 중요하다. 따라서 본 논문에서는 조리개 위치가 각각 다른 비축 삼반사 망원경을 설계하고 성능 및 민감도 분석을 진행하여 적합한 조리개의 위치를 제시하였다.

Keywords

Acknowledgement

이 논문은 2020년도 한화시스템(주)의 재원을 지원받아 수행되었습니다(초소형위성 광학 탑재체 연구).

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