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

doi:10.1117/12.2272190

19 September 2017 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

Author Affiliations +

Proceedings Volume 10401, Astronomical Optics: Design, Manufacture, and Test of Space and Ground Systems; 104010Q (2017) https://doi.org/10.1117/12.2272190
Event: SPIE Optical Engineering + Applications, 2017, San Diego, California, United States

Abstract

Korea Astronomy and Space Science Institute (KASI) has been developing the Camera Lens System (CLS) for the Total Solar Eclipse (TSE) observation. In 2016 we have assembled a simple camera system including a camera lens, a polarizer, bandpass filters, and CCD to observe the solar corona during the Total Solar Eclipse in Indonesia. Even we could not obtain the satisfactory result in the observation due to poor environment, we obtained some lessons such as poor image quality due to ghost effect from the lens system. For 2017 TSE observation, we have studied and adapted the compact coronagraph design proposed by NASA. The compact coronagraph design dramatically reduces the volume and weight and can be used for TSE observation without an external occulter which blocks the solar disk. We are in developing another camera system using the compact coronagraph design to test and verify key components including bandpass filter, polarizer, and CCD, and it will be used for the Total Solar Eclipse (TSE) in 2017. We plan to adapt this design for a coronagraph mission in the future. In this report we introduce the progress and current status of the project and focus on optical engineering works including designing, analyzing, testing, and building for the TSE observation.

Conference Presentation

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Jihun Kim, Seonghwan Choi, Ji-Hye Beck, Jongyeob Park, Su-Chan Bong, Bi-Ho Jang, Heesu Yang, Jinho Kim, Geon-Hee Kim, Kyungsuk Cho, and Sung-Joon Park "Development of the camera lens system for total solar eclipse observation (Conference Presentation)", Proc. SPIE 10401, Astronomical Optics: Design, Manufacture, and Test of Space and Ground Systems, 104010Q (19 September 2017); https://doi.org/10.1117/12.2272190

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KEYWORDS

Cameras

Imaging systems

Bandpass filters

CCD cameras

Polarizers

Analytical research

Astronomy

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