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Proceedings Paper

Testing method of off-axis parabolic cylinder mirror for FIMS
Author(s): Kwangsun Ryu; Jerry Edelstein; Jae Bong Song; Yunwoo Lee; Jinseok Chae; Kwangil Seon; Insoo Yuk; Eric J. Korpela; Jongho Seon; Uk-won Nam; Wonyong Han; Kyung-wook Min
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Paper Abstract

Far-ultraviolet IMaging Spectrograph (FIMS) is a far ultraviolet diffuse imaging spectrometer which will be launched in 2002 as the main payload of KAISTSAT-4. We have designed the optics for observing diffuse emission sources by employing an off-axis parabolic cylinder mirror in front of a slit which guides lights to a diffraction grating. The reflective diffraction grating is an ellipse of rotation providing angular resolution. We describe our plan to measure the off-axis parabolic mirror and our initial experiments to establish the measurement technique. To assist manufacture of the off-axis parabolic cylinder, a cylindrical wavefront generated using computer generated hologram (CGH) will be used during the polishing to check errors in surface profile using the Fizeau interferometer.

Paper Details

Date Published: 6 October 2000
PDF: 8 pages
Proc. SPIE 4231, Advanced Optical Manufacturing and Testing Technology 2000, (6 October 2000); doi: 10.1117/12.402822
Show Author Affiliations
Kwangsun Ryu, Korea Advanced Institute of Science and Technology (South Korea)
Jerry Edelstein, Univ. of California/Berkeley (United States)
Jae Bong Song, Korea Research Institute of Standards and Science (South Korea)
Yunwoo Lee, Korea Research Institute of Standards and Science (South Korea)
Jinseok Chae, CVI Korea Ltd. (South Korea)
Kwangil Seon, Korea Astronomical Observatory (South Korea)
Insoo Yuk, Korea Astronomical Observatory (South Korea)
Eric J. Korpela, Univ. of California/Berkeley (United States)
Jongho Seon, Korea Advanced Institute of Science and Technology (South Korea)
Uk-won Nam, Korea Astronomical Observatory (South Korea)
Wonyong Han, Korea Astronomical Observatory (South Korea)
Kyung-wook Min, Korea Advanced Institute of Science and Technology (South Korea)


Published in SPIE Proceedings Vol. 4231:
Advanced Optical Manufacturing and Testing Technology 2000
Li Yang; Harvey M. Pollicove; Qiming Xin; James C. Wyant, Editor(s)

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