GONG Dun, TIAN Tie-yin, WANG Hong. Computer-aided alignment of off-axis three-mirror system by using Zernike coefficients[J]. 光学精密工程, 2010,18(8): 1754-1759
GONG Dun, TIAN Tie-yin, WANG Hong. Computer-aided alignment of off-axis three-mirror system by using Zernike coefficients[J]. 光学精密工程, 2010,18(8): 1754-1759 DOI: 10.3788/OPE.20101808.1754.
A computer-aided alignment method in combining with the interferometry was proposed to optimize the detection and alignment of an off-axis three-mirror system.By using a multi-fields ZYGO interferometer
a series of Zernike coefficients were obtained to express the incorrect parameters of the system
which were then transformed into geometric aberrations as the corrected objects based on the dependence of Zernike-coefficents on Seidel aberrations.Furthermore
an optical design software was used to derive the sensitivity matrix related to the incorrect parameters and to determine the incorrect parameter mostly sensitive to the redual aberration. Consequently
the adjusted result was brought into the software to verify the selection of incorrect parameters.Experimental results show that the RMS value of the system is lower than 0.04 after iterations
which proves the effectiveness of the method in alignment guidance.
CHANG J, WENG Z C, JIANG H L. Design of long focal length space optical system with three reflective mirror[J]. Opt. Precision Eng.,2001,9(4):315-318.(in Chinese)
SHI Y L,GAO Y G,DENG W J. Model for computer-aided alignment of reflective optical system[J].Laser & Infrared, 2009,39(4):427-430. (in Chinese)
FIGOSKI J W, SHRODET E, MOORE G F. Computer-aided alignment of a wide-field three-mirror, unobscured, high-resolution sensor[J].SPIE,1989,1049:166-177.
IRA M, EGDAL L. Manufacture of a three-mirror wide-field optical system[J].Optical Engineering, 1985, 24(2):285-292.
YANG X F,ZHANG X H,HAN C Y. Application of Zemax software in alignment of three-mirror off-axis aspherical optical system[J]. Opt. Precision Eng., 2004,12(3):270-274.( in Chinese)
ZHANG B, ZHANG X H, HAN C Y. Algorithm for misalignmental determination in computer-aided alignment of optical system[J].Opt. Precision Eng.,2001,8(3):273-277.(in Chinese)