[1] [1] H. J. Juranek, Sand Rolf, J. Schweizer et al.. Off-axis telescopes-the future generation of earth observation telescopes［C］. SPIE, 1998, 3439: 104～115

[2] [2] Guo Yongxiang, Li Yingcai, Lu Baobin. Design of new-style unobscured three-mirror optical system［J］. Acta Optica Sinica, 2010, 30(4): 1144～1147

[3] [3] Cui Xiangqun, Gao Bilie, Wang Dazing et al.. A new polishing technology for large diameter and deep aspherical mirror［J］. Acta Optica Sinica, 2005, 25(3): 402～407

[4] [4] Guo Yongxiang, Li Yingcai, Liang Tianmei et al.. Optical design of the uncoaxial three mirror system with wide field of view［J］. Acta Optica Sinica, 2010, 30(9): 2680～2683

[5] [5] Yang Bingxin. Characteristics and main specification of IKONOS and QuickBird2 satellite camera-some points for developing such like satellite camera［J］. Spacecraft Recovery & Remote Sensing, 2002, 23(4): 14～16

[6] [6] Wang Peng, Zhao Wencai, Hu Mingyong et al.. Hindle testing of the off-axis convex asphere surface［J］. Optics and Precision Engineering, 2002, 10(2): 139～142

[7] [7] H. Philip Stahl. Aspheric surface testing techniques［C］. Fabrication and Testing of Asphere, OSA, 1999, 24: 86～102

[8] [8] Mitchell Curtis Ruda. Methods for null testing sections of aspheric surfaces［D］. The University of Arizona, 1979. 1～10

[9] [9] H. H. Hopkins, H. J. Tiziani. A theoretical and experimental study of lens centring errors and their influence on optical image quality［J］. Brit. J. Appl. Phys., 1966, 17: 33～54

[10] [10] M. Rimmer. Analysis of perturbed lens systems［J］. Appl. Opt., 1970, 9(3): 533～537

[11] [11] W. B. Wetherell, M. P. Rimmer. Schwarzschild telescopes［J］. Appl. Opt., 1972, 11(12): 2817～2832