Dr. Seonghwan Choi Profile

Dr. Seonghwan Choi

Principal Researcher at Korea Astronomy and Space Science Institute

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Publications (11)

Proceedings Article | 11 March 2024 Presentation + Paper

Current status of SurfCam development

Jihun Kim, Minsup Jeong, Minbae Kim, Youngju Kim, Young-Jun Choi, Sungsoo Kim, Dukhang Lee, Bongkon Moon, Dae-Hee Lee, Seonghwan Choi, Chae Kyung Sim, Jehyuck Shin, Seul-Min Baek, Mingyeong Lee

Proceedings Volume 12893, 1289302 (2024) https://doi.org/10.1117/12.3002168

KEYWORDS: Optical design, Modulation transfer functions, Design, 3D image processing, Cameras, Optics manufacturing, Microlens array, 3D metrology, Windows, Testing and analysis

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Proceedings Article | 5 October 2023 Presentation

Unveiling new frontiers: conceptual design of optical and EUV telescopes with instruments for the L4 mission

Jeong-Yeol Han, Jeongyeop Park, Sung-Hong Park, Eun-Kyung Lim, Donguk Song, Kyung-Suk Cho, Junga Hwang, Seonghwan Choi, Rok-Soon Kim, Jungjoon Seough, JongDae Sohn, Jihun Kim

Proceedings Volume 12676, 126760L (2023) https://doi.org/10.1117/12.2677366

KEYWORDS: Telescopes, Extreme ultraviolet, Design and modelling, Equipment, EUV optics, Space weather, Solar processes, Remote sensing, Optical telescopes, Magnetism

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Proceedings Article | 4 October 2023 Poster + Paper

Preliminary mechanical design of GrainCams payload for the CLPS lunar rover

Woojin Kim, Bongkon Moon, Dukhang Lee, Dae-Hee Lee, Min-Bae Kim, Minsup Jeong, Jihun Kim, Seonghwan Choi, Jehyuck Shin, Mingyeong Lee, Seul-Min Baek, Chae Kyung Sim, Young-Jun Choi, Sungsoo Kim

Proceedings Volume 12677, 126770R (2023) https://doi.org/10.1117/12.2677855

KEYWORDS: Safety, Contact lenses, Design and modelling, Modal analysis, Interfaces, Thermal analysis, Lenses, Structural analysis, Vibration, Temperature metrology

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Proceedings Article | 4 October 2023 Poster + Paper

On-orbit thermal control system design and analysis for space optical telescope ROKITS

Jaegun Yoo, Jeong-Yeol Han, Hui-Kyung Kim, Woo Kyoung Lee, Seonghwan Choi, Dukhang Lee, Chanhaeng Lee, Daewook Kim

Proceedings Volume 12676, 1267611 (2023) https://doi.org/10.1117/12.2676760

KEYWORDS: Thermal analysis, Design and modelling, Thermal modeling, Fused deposition modeling, Solar energy, Optical telescopes, Optical surfaces, Space operations, Satellites, Control systems

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Proceedings Article | 4 October 2023 Presentation + Paper

Optical design and analysis of the ROKITS cameras

Jihun Kim, Youngju Kim, Seonghwan Choi, Dukhang Lee, Gwanghui Jeong, Jongyeob Park, Ji-Hye Baek, Yunjong Kim, Tae-Yong Yang, Jaeheung Park, Kyoung-min Roh, Young-Sil Kwak, Chanhaeng Lee, Jong-Kyun Chung, Woo kyoung Lee

Proceedings Volume 12676, 126760U (2023) https://doi.org/10.1117/12.2676608

KEYWORDS: Optical design, Cameras, Tolerancing, Optical filters, Modulation transfer functions, Earth's atmosphere, Sensors, Atmospheric sciences, Auroras

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Proceedings Article | 8 March 2023 Presentation + Paper

Design and analysis of the light field camera for SurfCam

Jihun Kim, Minsup Jeong, Min Bae Kim, Youngju Kim, Young-Jun Choi, Sungsoo Kim, Dukhang Lee, Bongkon Moon, Dae-Hee Lee, Seonghwan Choi, Chae Kyung Sim, Mingyeong Lee, Jehyuck Shin

Proceedings Volume 12428, 1242803 (2023) https://doi.org/10.1117/12.2646524

KEYWORDS: Modulation transfer functions, Optical design, Windows, Lenses, Design and modelling, Transmittance, Tolerancing, Glasses, Coating, Cameras

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Proceedings Article | 29 August 2022 Poster

Design and analysis of the SiC solar telescope for extreme environments

Jihun Kim, Seonghwan Choi, Jeong-Yeol Han, Yunjong Kim, Ji-Hye Baek, Jongyeob Park, Heesu Yang, Sujin Kim, Young-Soo Kim, Jaegun Yoo, Youra Jun, Bi-Ho Jang, Il Kweon Moon, Dohoon Kim, Minkyum Kim, Gwanghui Jeong, Myung Cho

Proceedings Volume 12182, 1218233 (2022) https://doi.org/10.1117/12.2628857

KEYWORDS: Solar telescopes, Optical instrument design, Silicon carbide, Telescopes, Mirrors, Bridges, Off axis mirrors, Light scattering, Tolerancing, Temperature metrology

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Proceedings Article | 19 September 2017 Presentation

Development of the camera lens system for total solar eclipse observation (Conference Presentation)

Jihun Kim, Seonghwan Choi, Ji-Hye Beck, Jongyeob Park, Su-Chan Bong, Bi-Ho Jang, Heesu Yang, Jinho Kim, Geon-Hee Kim, Kyungsuk Cho, Sung-Joon Park

Proceedings Volume 10401, 104010Q (2017) https://doi.org/10.1117/12.2272190

KEYWORDS: Cameras, Imaging systems, Polarizers, Bandpass filters, CCD cameras, Astronomy, Coronagraphy, Image quality, Optical engineering, Analytical research

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Proceedings Article | 7 August 2014 Paper

AO-308: the high-order adaptive optics system at Big Bear Solar Observatory

Sergey Shumko, Nicolas Gorceix, Seonghwan Choi, Aglaé Kellerer, Wenda Cao, Philip Goode, Volodymyr Abramenko, Kit Richards, Thomas Rimmele, Jose Marino

Proceedings Volume 9148, 914835 (2014) https://doi.org/10.1117/12.2056731

KEYWORDS: Digital signal processing, Adaptive optics, Cameras, Mirrors, Wavefronts, Signal processing, Observatories, Image processing, Actuators, Telescopes

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Proceedings Article | 15 July 2008 Paper

Development of a correlation tracker system for the New Solar Telescope

Seonghwan Choi, Jakyoung Nah, Yong-Jae Moon, Haimin Wang, Roy Coulter

Proceedings Volume 7015, 701553 (2008) https://doi.org/10.1117/12.788661

KEYWORDS: Mirrors, Cameras, Digital signal processing, Computer programming, Solar telescopes, CMOS cameras, Motion measurement, Signal processing, Computed tomography, Imaging systems

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Proceedings Article | 27 June 2006 Paper

The telescope control system of the New Solar Telescope at Big Bear Solar Observatory

G. Yang, J. Varsik, S. Shumko, C. Denker, S. Choi, A. Verdoni, H. Wang

Proceedings Volume 6274, 62741Y (2006) https://doi.org/10.1117/12.672402

KEYWORDS: Telescopes, Control systems, Human-machine interfaces, Mirrors, Space telescopes, Telecommunications, Distributed computing, Solar telescopes, Observatories, Domes

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Showing 5 of 11 publications

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