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Proceedings Paper

Development of aberration measurement program using curvature sensing technique
Author(s): Hyun-Il Sung; Tae-Ho Ha; Yoon-Ho Park; Sang-Min Lee; Youngbeom Jeon
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Paper Abstract

The aberration measurement program has been developed for improving the optical quality of ground-based telescopes. This program is based on the Curvature Sensing Technique (CST) and aberrations are estimated from two defocused stellar images. We used iterative algorithm that simulates closed-loop wave-front compensation in optics. It has been applied to the telescope of Bohyunsan Optical Astronomy Observatory (BOAO) in Korea. The most frequently encountered aberration by misalignment was coma. As a result, the image quality of telescope was improved after adjustment the alignment of secondary mirror.

Paper Details

Date Published: 18 July 2014
PDF: 10 pages
Proc. SPIE 9152, Software and Cyberinfrastructure for Astronomy III, 91521T (18 July 2014); doi: 10.1117/12.2056673
Show Author Affiliations
Hyun-Il Sung, Korea Astronomy and Space Science Institute (Korea, Republic of)
Tae-Ho Ha, Korea Astronomy and Space Science Institute (Korea, Republic of)
Yoon-Ho Park, Korea Astronomy and Space Science Institute (Korea, Republic of)
Sang-Min Lee, Korea Astronomy and Space Science Institute (Korea, Republic of)
Youngbeom Jeon, Korea Astronomy and Space Science Institute (Korea, Republic of)


Published in SPIE Proceedings Vol. 9152:
Software and Cyberinfrastructure for Astronomy III
Gianluca Chiozzi; Nicole M. Radziwill, Editor(s)

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