目前, 随着军用光学镜头结构复杂度以及性能要求的不断提高, 传统装调手段误差大、一致性差的缺陷越发明显, 为此, 提出了光学镜头轴线精度定心校准技术以满足尖端光学系统的装调需求。首先, 分析了影响光学镜头成像质量的误差来源; 其次, 提出了带数据反馈的闭环制造链原理, 将整个光学系统研制环节结合成一个闭环; 之后, 针对现有装调手段的不足, 从保证中心偏差和光学间隔两方面, 提出了以定心加工为核心的镜组轴线精确校准方法, 其光机轴线一致性达到秒级, 尺寸精度达到微米级; 最后, 采用本文技术, 设计研制了一套光学镜头, 与传统镜头相比, 焦距误差由1%提高至0.1%, 分辨力由2.3″提高至2.04″。

At present, with the structural complexity and performance requirements of military optical lenses increasing, the defects of great errors and inconsistency in the conventional adjustment methods become more and more obvious. Therefore, a precise axis centering calibration technology for optical lens was proposed,in order to providing support for advanced optical systems. First of all, the error sources affecting the quality of optical lens were analyzed. Second, the manufacturing chain principle with data feedback closed-loop was proposed, and the entire optical system development links were combined together into a closed loop. Then,aiming at the shortcomings of the existing adjustment methods, a precise calibration method of lens group axis taken centering process as the core was put forward through ensuring both the center deviation and the optical spacing. Its optical-mechanical axis consistency reaches the second level and the dimensional accuracy reaches the micron level. Finally, a set of optical lens was designed and developed using this technique. Compared with the traditional lens, the focal length error increases from 1% to 0.1% and the resolution from 2.3" to 2.04".