基于对称视场失调像散校正的R-C望远镜装调方法  

R-C Telescope Alignment Method Based on Astigmatism Correction of Symmetrical Field of View Misalignment

作　　者：王浩 张磊[1] Wang Hao;Zhang Lei(School of Optoelectronic Engineering,Changchun University of Science and Technology,Changchun 130012,Jilin,China)

机构地区：[1]长春理工大学光电工程学院,吉林长春130012

出　　处：《激光与光电子学进展》2025年第2期77-82,共6页Laser & Optoelectronics Progress

基　　金：吉林省教育厅科技基金(JJKH20210814KJ)。

摘　　要：利用矢量像差理论,根据失调后的Ritchey-Chrétien(R-C)望远镜的像差场特性,提出基于轴上视场彗差和轴外对称视场像散进行迭代的双反射望远镜装调方法。对R-C望远镜进行仿真装调实验,次镜随机引入一组失调量,利用所提方法经过3次迭代即完成系统的装调,验证了所提装调方法的可行性。利用所提方法进行实际的装调实验,装调后的系统轴上视场波像差为0.0730λ,两个对称轴外视场波像差分别为0.0808λ和0.0834λ。实验结果表明,通过所提方法有效完成R-C望远镜的装调,同时保证系统的轴上和轴外视场的成像质量。This paper proposes a two-mirror telescope alignment method based on the on-axis field of view coma and off-axis symmetrical field of view astigmatism,utilizing vector aberration theory based on the aberration field characteristics of a misaligned Ritchey-Chrétien(R-C)telescope.A simulation alignment experiment is conducted on an R-C telescope,with random misalignments introduced into the secondary mirror.The alignment is successfully completed after three iterations using the proposed method,demonstrating its feasibility.An actual assembly experiment further validates the proposed method,achieving wave aberration values of 0.0730λfor the on-axis field of view and 0.0808λand 0.0834λfor the two symmetrical off-axis fields of view,respectively.Experimental results indicate that the proposed method effectively aligns the R-C telescope,ensuring high imaging quality across all fields of view.

关 键 词：双反射望远镜 装调 对称视场 像散 

分 类 号：O436[机械工程—光学工程]