红外与激光工程, 2015, 44 (10): 3020, 网络出版: 2016-01-26   

考虑像差影响的透射式光学系统失调校正方法

New correction method for transmission-type misalignment optical system based on aberration theory
作者单位
军械工程学院 电子与光学工程系,河北 石家庄 050003
摘要
随着高分辨力光学系统应用领域的不断拓展,光学元件的高精度装配要求和高精度的设计要求一样,已成为光学系统分辨力的决定性因素。现有的高斯光学校正方法仅考虑物像位置关系的调整,已不能满足光学系统的调整要求,光学仪器的调整理论需要同步发展。考虑像差对光学系统失调的影响,提出了一种基于像差理论的(透射式)光学系统失调校正方法:分析了单透镜轴向位移引起的像差变化规律,给出了像差影响系数的定义; 在此基础上,通过反演计算像面位置误差和放大率误差所需的透镜调整量,数学推导出了基于像差约束条件的光学系统失调校正公式。以三透镜准直系统为例进行了仿真实验验证,证明了将像差约束引导到校正方法中,能够同时满足高斯光学特性的要求和像差增量最小的要求。
Abstract
Along with more broad application fields of the high-resolution optical system, the high-precision assembling requirement of optical components, as same as the high-precision design requirement, has become the decisive element of the optical system resolution. Because the current Gauss optical correction method only considers the alignment of object-image location, and cannot actually meets the requirement of optical system adjustment, the alignment theory of optical instruments needs to be developed synchronously. The influence of aberration on misalignment of optical system was considered fully, a correction method for transmission-type misalignment optical system was proposed based on aberration theory. The variation regularity of single lens aberration caused by axial displacement was analyzed, and the aberration effect coefficients were defined. On this basis, through calculating the size of lens adjustment induced by the image position error and the magnifying rate error, the misalignment correction formula based on the constraints of the aberration was deduced mathematically. Taking the three lens collimation system for an example, the simulation was carried out to validate this method. It comes to the following conclusion: by introducing the aberration constraint theory into the correction method, the final correction result meets both the requirement of Gauss optical characteristic and the minimum aberration increase.

徐春梅, 刘秉琦, 黄富瑜, 沈洪斌, 张雏. 考虑像差影响的透射式光学系统失调校正方法[J]. 红外与激光工程, 2015, 44(10): 3020. Xu Chunmei, Liu Bingqi, Huang Fuyu, Shen Hongbin, Zhang Chu. New correction method for transmission-type misalignment optical system based on aberration theory[J]. Infrared and Laser Engineering, 2015, 44(10): 3020.

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