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

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

We are under integrating off-axis freeform mirrors for the KASI Deep Rolling Imaging Fast Telescope Generation 1 (K-DRIFT G1) using a coordinate measuring machine and assembly jig. The telescope is a confocal off-axis freeform three-mirror 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.

Original languageEnglish (US)
Title of host publicationOptical Manufacturing and Testing 2024
EditorsDaewook Kim, Heejoo Choi, Heidi Ottevaere
PublisherSPIE
ISBN (Electronic)9781510679283
DOIs
StatePublished - 2024
EventOptical Manufacturing and Testing 2024 - San Diego, United States
Duration: Aug 20 2024Aug 22 2024

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume13134
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X

Conference

ConferenceOptical Manufacturing and Testing 2024
Country/TerritoryUnited States
CitySan Diego
Period8/20/248/22/24

Keywords

  • Freeform
  • Integration
  • K-DRIFT
  • Linear Astigmatism Free
  • Off-axis
  • Optical Testing
  • Telescope
  • Three Mirror System

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

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