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Proceedings Paper

Dual testing of a large-aperture optical system
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Paper Abstract

A method for measuring the wave front errors and the modulation transfer function (MTF) of the large aperture optics is presented. The large aperture Fizeau interferometer with long optical path difference by using a (phi) 400 mm off-axis parabolic mirror is made. The MTF is measured at the wavelength of the interferometer by changing the laser into the partially incoherent light. A bidirectional shearing interferometer is used for collimation testing. The test results of a (phi) 300 mm Cassegrain type satellite telescope made in Korea are presented.

Paper Details

Date Published: 19 June 2002
PDF: 10 pages
Proc. SPIE 4778, Interferometry XI: Applications, (19 June 2002); doi: 10.1117/12.473560
Show Author Affiliations
Jong Sup Song, Hannam Univ. (South Korea)
Yun Woo Lee, Korea Research Institute of Standards and Science (South Korea)
Jae Bong Song, Korea Research Institute of Standards and Science (South Korea)
In Won Lee, Korea Research Institute of Standards and Science (South Korea)
Ho-Soon Yang, SaTReC Initiative Co., Ltd. (South Korea)
Young-Wan Choi, SaTReC Initiative Co., Ltd. (South Korea)
Jae Heung Jo, Hannam Univ. (South Korea)


Published in SPIE Proceedings Vol. 4778:
Interferometry XI: Applications
Wolfgang Osten, Editor(s)

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