面型误差和失调量对同轴三反系统像质的影响

应用于对地观测的高分辨同轴三反式系统对光学装调有着严格的要求, 光学元件的失调量和由装配应力导致的面型误差都会严重影响系统成像质量。该方法通过镜面受力分析和光学系统仿真指导系统装调, 以某商业遥感卫星搭载的同轴三反式镜头装调过程为例, 分析失调量和面型误差的像差特性。通过分析光学元件失调量和面型误差与系统像散、彗差以及球差的关系, 并利用系统波像差的均方根(RMS)作为系统像质的评价标准, 得出各个光学元件失调量和面型误差对系统成像质量的影响权重。根据计算结果进行针对性调校, 使系统各视场的平均RMS值收敛为0.06λ以下。经过多台同类镜头装调结果验证, 证明该方法切实有效, 可缩短装调周期, 提升装调精度。

Abstract

Surface error and alignment aberration of mirrors are required precision uniform in space transmission coaxial three mirror system alignment． Based on force analysis and system simulation methods for efficient alignment of the coaxial optical systems, one coaxial three mirror system with large aperture and long focal length was used to illustrate the relationship between aberration characteristics to alignment aberration and surface error． The spherical aberration, coma and astigmatism caused by alignment aberration and surface error were calculated, then wavefront RMS was used as an evaluation standard for system imaging quality. Finally, the weight of alignment aberration and surface error to system imaging quality were obtained． Based on the calculated result, the average RMS was adjusted to below 0.06λ. The lens alignment results demonstrate the possibility and effectiveness of this method, and the proposed methods could be available to shorten the alignment process, and promote system alignment accuracy．

参考文献

[1] 董续勇, 李辛, 周风利, 等. 小F数卡塞格林系统装调技术[J]．红外与激光工程, 2011, 40(9): 1730-1733.

Dong Xuyong, Li Xin, Zhou Fengli, et al． Alignment technology of the Cassegrain reflector with small F-number[J]． Infrared and Laser Engineering, 2011, 40(9): 1730-1733. (in Chinese)

[2] Duan X T, Bai J G, Zhou R K． An experimental study on the image quality loss of an objective caused by assemblage stress[C]//SPIE, 2006, 6149: 61493DI-5.

[3] Daisuke Miyazaki, Yuji Ohno, Kenji Matsushita, et al. Alignment-free optical modules using solder-bump-bonding technique for free-space optical interconnections [J]. Optical Review, 2008, 15(1): 19-25.

[4] 杨新军, 王肇圻, 母国光, 等. 偏心和倾斜光学系统的像差特性[J]．光子学报, 2005, 34(11): 1658-1662．

Yang Xinjun, Wang Zhaoqi, Mu Guoguang, et al． Aberration properties of decentered and titled optical system[J]． Acta Photonica Sinica, 2005, 34(11): 1658-1662． (in Chinese)

[5] Pang Zhihai, Fan Xuewu, Ma Zhen, et al. The computer aided alignment study of three-mirror off-axis field bias optical system[C]//SPIE, 2012, 8417: 1-5.

[6] Schmid T, Thompson K P, Rolland J P. Alignment induced aberration fields of next generation telescopes [C]//SPIE,2008, 7068: 70680E1-70680E7.

[7] Thompson K P. Description of the third -order optical aberrations of near-circular pupil optical systems without symmetry[J]. J Opt Soc Am A, 2005, 22(7): 1389-1401.

[8] 巩盾, 田铁印, 王红. 利用Zernike系数对离轴三反射系统进行计算机辅助装调[J]. 光学精密工程, 2010, 18(8): 1754-1758．

Gong Dun, Tian Tieyin, Wang Hong. Computer-aided alignment of off-axis three-mirror system by using Zernike coefficients[J]. Optics and Precision Engineering, 2010, 18(8): 1754-1758． (in Chinese)

[9] 岳丽清, 张继友. 三线阵相机视轴夹角及线阵平行性装调测试[J]. 航天返回与遥感, 2012, 33(3): 35-40.

Yue Liqing, Zhang Jiyou. Alignment method of axis angle and linear array parallelism for three-line array mapping camera [J]. Spacecraft Recovery and Remote Sensing, 2012, 33(3): 35-40. (in Chinese)

[10] 郭夏锐, 廖志波, 王春雨, 等. 光轴一致性误差对空间透射式系统像差和质量的影响[J]. 红外与激光工程, 2012, 41(2): 436-442.

Guo Xiarui, Liao Zhibao, Wang Chunyu, et al. Aberration and alignment quality investigation of space transmission optical system with centering error of optical axes [J]. Infrared and Laser Engineering, 2012, 41(2): 436-442. (in Chinese)

李斌, 陈佳夷, 王海超, 霍腾飞, 李新华. 面型误差和失调量对同轴三反系统像质的影响[J]. 红外与激光工程, 2018, 47(9): 0918002. Li Bin, Chen Jiayi, Wang Haichao, Huo Tengfei, Li Xinhua. Effect of surface error and alignment aberration on imaging quality of coaxial three mirror system[J]. Infrared and Laser Engineering, 2018, 47(9): 0918002.

面型误差和失调量对同轴三反系统像质的影响

关于本站 Cookie 的使用提示

全站搜索

面型误差和失调量对同轴三反系统像质的影响

相关论文

相关资讯

关于本站 Cookie 的使用提示

全站搜索