[1] 赵宇宸, 何欣, 张凯, 等. 轻小型大视场自由曲面离轴光学系统设计[J]. 红外与激光工程, 2018, 47(12): 1218001. doi:  10.3788/IRLA201847.1218001

Zhao Yuchen, He Xin, Zhang Kai, et al. Optical design of mini-aturized and large field of view off-axis optical system based on freeform surface [J]. Infrared and Laser Engineering, 2018, 47(12): 1218001. (in Chinese) doi:  10.3788/IRLA201847.1218001
[2] 王伟. 自由曲面离轴反射式光学系统设计[D]. 南京: 南京理工大学, 2016.

Wang Wei. The optical design of off-axis reflective system with freeform surface[D]. Nanjing: Nanjing University of Science and Technology, 2016.（in Chinese）
[3] Fuerschbach K, Davis G E, Thompson K P, et al. Asse-mbly of a freeform off-axis optical system employing three <italic>φ</italic>-polynomial Zernike mirrors [J]. Optics Letters, 2014, 39(10): 2896-2899. doi:  10.1364/OL.39.002896
[4] Zhu J, Hou W, et al. Design of a low F-number freeform off-axis three mirror system with rectangular field-of-view [J]. Journal of Optics, 2015, 17(1): 015605. doi:  10.1088/2040-8978/17/1/015605
[5] 孟庆宇, 汪洪源, 王严, 等. 大线视场自由曲面离轴三反光学系统设计[J]. 红外与激光工程, 2016, 45(10): 1018002. doi:  10.3788/IRLA201645.1018002

Meng Qingyu, Wang Hongyuan, Wang Yan, et al. Off-axis threem-irror freeform optical system with large linear field of view [J]. Infrared and Laser Engineering, 2016, 45(10): 1018002. (in Chinese) doi:  10.3788/IRLA201645.1018002
[6] 姜晰文. 致冷型离轴反射光学系统研究[D]. 长春: 长春理工大学, 2016.

Jiang Xiwen. Studies on cooled off-axis reflective optical systems[D]. Changchun: Changchun University of Science and Technology, 2016.（in Chinese）
[7] 张庭成, 廖志波. 6倍制冷型中红外连续变焦光学系统设计[J]. 光学学报, 2012, 32(11): 1122004. doi:  10.3788/AOS201232.1122004

Zhang Tingcheng, Liao Zhibo. Design of 6× cooled thermal im-aging middle infrared continuous zoom optical system [J]. Acta Optica Sinica, 2012, 32(11): 1122004. (in Chinese) doi:  10.3788/AOS201232.1122004
[8] Thompson K. Description of the third-order optical ab-errations of near-circular pupil optical systems without symmetry [J]. Journal of the Optical Society of America A, 2005, 22(7): 1389-1401. doi:  10.1364/JOSAA.22.001389
[9] 庞志海, 樊学武, 任国瑞, 等. 离轴反射光学系统像差特性研究[J]. 红外与激光工程, 2016, 45(6): 0618002.

Pang Zhihai, Fan Xuewu, Ren Guorui, et al. Study of aberration characteristic of off-axis reflective system [J]. Infrared and Laser Engineering, 2016, 45(6): 0618002. (in Chinese)
[10] 操超, 廖胜, 廖志远, 等. 制冷型自由曲面离轴反射光学系统设计[J]. 光学学报, 2019, 39(11): 1122001. doi:  10.3788/AOS201939.1122001

Cao Chao, Liao Sheng, Liao Zhiyuan, et al. Design of cooled free-form off-axis reflective optical system [J]. Acta Optica Sinica, 2019, 39(11): 1122001. (in Chinese) doi:  10.3788/AOS201939.1122001
[11] Thompson K P, Schmid T, Cakmakci O, et al. Real-ray-based method for locating individual surface aberration field centers in imaging optical systems without rotational sy-mmetry [J]. Journal of the Optical Society of America A, 2009, 26(6): 1503-1517. doi:  10.1364/JOSAA.26.001503
[12] Cao C, Liao S, Liao Z, et al. Initial configuration design method for off-axis reflective optical systems using nodal aberration theory and genetic algorithm [J]. Optical Engineering, 2019, 58(10): 105101.
[13] 徐奉刚, 黄玮. 遗传算法在离轴四反光学系统设计中的应用[J]. 光学 精密工程, 2017, 25(8): 2076-2082. doi:  10.3788/OPE.20172508.2076

Xu Fenggang, Huang Wei. Application of genetic algorithm in the design of off-axis four-mirror optical system [J]. Optics and Precision Engineering, 2017, 25(8): 2076-2082. (in Chinese) doi:  10.3788/OPE.20172508.2076
[14] 程颖. 光学自由曲面设计方法及应用研究[D]. 天津: 天津大学, 2013.

Cheng Ying. Study on design and application of freeform optics[D]. Tianjin: Tianjin University, 2013.(in Chinese)
[15] 李旭阳, 倪栋伟, 杨明洋, 等. 基于自由曲面的大视场空间相机光学系统设计[J]. 光子学报, 2018, 47(9): 0922003. doi:  10.3788/gzxb20184709.0922003

Li Xuyang, Ni Dongwei, Yang Mingyang, et al. Design of large field of view space camera optical system based on freeform surface [J]. Acta Photonica Sinica, 2018, 47(9): 0922003. (in Chinese) doi:  10.3788/gzxb20184709.0922003
[16] 张磊, 刘东, 师途, 等. 光学自由曲面面形检测技术[J]. 中国光学, 2017, 10(3): 283-199. doi:  10.3788/co.20171003.0283

Zhang Lei, Liu Dong, Shi Tu, et al. Optical freeform surfaces testing technologies [J]. Chinese Optics, 2017, 10(3): 283-199. (in Chinese) doi:  10.3788/co.20171003.0283