Testing method of off-axis parabolic cylinder mirror for FIMS

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

doi:10.1117/12.402822

6 October 2000 Testing method of off-axis parabolic cylinder mirror for FIMS

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

Author Affiliations +

Proceedings Volume 4231, Advanced Optical Manufacturing and Testing Technology 2000; (2000) https://doi.org/10.1117/12.402822
Event: International Topical Symposium on Advanced Optical Manufacturing and Testing Technology, 2000, Chengdu, China

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.

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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, and Kyung-wook Min "Testing method of off-axis parabolic cylinder mirror for FIMS", Proc. SPIE 4231, Advanced Optical Manufacturing and Testing Technology 2000, (6 October 2000); https://doi.org/10.1117/12.402822

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