Dual testing of large aperture optical system

被引：0
|
作者：
Song, JS [1 ]
Lee, YW [1 ]
Song, JB [1 ]
Lee, IW [1 ]
Yang, HS [1 ]
Choi, YW [1 ]
Jo, JH [1 ]
机构：
[1] Hannam Univ, Dept Phys, Taejon, South Korea
来源：
INTERFEROMETRY XI: APPLICATIONS | 2002年 / 4778卷
关键词：
large aperture optics; interferometer; MTF; wave front aberration; collimation;
D O I：
10.1117/12.473560
中图分类号：
TH7 [仪器、仪表];
学科分类号：
0804 ; 080401 ; 081102 ;
摘要：
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 nun 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.
引用
收藏
页码：227 / 236
页数：10
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