Integration of off-axis freeform mirrors KASI deep rolling imaging fast telescope generation 1

Yunjong Kim; Dohoon Kim; Seunghyuk Chang; Jihun Kim; Il Kweon Moon; Hyukson Kwon; Woowon Byun; Yongseok Lee; Changhee Lee; Kyohoon Ahn; Yeonsik Kim; Gayoung Lee; Daewook Kim; Jongwan Ko

doi:10.1117/12.3028442

30 September 2024 Integration of off-axis freeform mirrors KASI deep rolling imaging fast telescope generation 1

Yunjong Kim, Dohoon Kim, Seunghyuk Chang, Jihun Kim, Il Kweon Moon, Hyukson Kwon, Woowon Byun, Yongseok Lee, Changhee Lee, Kyohoon Ahn, Yeonsik Kim, Gayoung Lee, Daewook Kim, Jongwan Ko

Author Affiliations +

Proceedings Volume 13134, Optical Manufacturing and Testing 2024; 131340C (2024) https://doi.org/10.1117/12.3028442
Event: Optical Engineering + Applications, 2024, San Diego, California, United States

Abstract

We are under integrating off-axis freeform mirrors for the KASI Deep Rolling Imaging Fast Telescope Generation 1 (KDRIFT G1) using a coordinate measuring machine and assembly jig. The telescope is a confocal off-axis freeform threemirror system designed for the detection of extremely low surface brightness structures in the sky. The optical specifications of the K-DRIFT G1 are as follows: the entrance pupil diameter is 300 mm, the focal ratio is 3.5, and the field of view is 4.43° × 4.43°. During the integration stage, we used a coordinate measuring machine to measure the positions of the mirrors, flexures, and bezels within a tolerance range. Following the system integration, we will measure wavefront errors at several edge fields using an interferometer at 633 nm. In this paper, we briefly present the current status of the K-DRIFT G1 and the future plans for the project.

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(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

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Yunjong Kim, Dohoon Kim, Seunghyuk Chang, Jihun Kim, Il Kweon Moon, Hyukson Kwon, Woowon Byun, Yongseok Lee, Changhee Lee, Kyohoon Ahn, Yeonsik Kim, Gayoung Lee, Daewook Kim, and Jongwan Ko "Integration of off-axis freeform mirrors KASI deep rolling imaging fast telescope generation 1", Proc. SPIE 13134, Optical Manufacturing and Testing 2024, 131340C (30 September 2024); https://doi.org/10.1117/12.3028442

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