Dual testing of a large-aperture optical system

Jong Sup Song; Yun Woo Lee; Jae Bong Song; In Won Lee; Ho-Soon Yang; Young-Wan Choi; Jae Heung Jo

doi:10.1117/12.473560

19 June 2002 Dual testing of a large-aperture optical system

Jong Sup Song, Yun Woo Lee, Jae Bong Song, In Won Lee, Ho-Soon Yang, Young-Wan Choi, Jae Heung Jo

Proceedings Volume 4778, Interferometry XI: Applications; (2002) https://doi.org/10.1117/12.473560
Event: International Symposium on Optical Science and Technology, 2002, Seattle, WA, United States

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.

Citation Download Citation

Jong Sup Song, Yun Woo Lee, Jae Bong Song, In Won Lee, Ho-Soon Yang, Young-Wan Choi, and Jae Heung Jo "Dual testing of a large-aperture optical system", Proc. SPIE 4778, Interferometry XI: Applications, (19 June 2002); https://doi.org/10.1117/12.473560

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