Optical system initial structure generation method based on dual-threshold algorithm

The invention discloses an optical system initial structure generation method based on a dual-threshold algorithm. The working steps are orderly as follows: 1) obtaining an optical system design requirement according to a user demand; 2) obtaining an optical system first-order structure based on the dual-threshold algorithm through the optical system design requirement; 3) optimizing a corresponding thin-lens structure through the obtained optical system first-order structure; and 4) obtaining the optical system initial structure through the optical system thin-lens structure. The optical system initial structure generation method provided by the invention is simple in operation, strong in pertinence, and capable of obviously improving optical design efficiency. 种基于双阈值算法的光学系统初始结构生成方法，其工作步骤依次为：1)根据用户需求得到光学系统设计要求。2)通过光学系统设计要求基于双阈值算法得到光学系统阶结构。3)通过得到的光学系统阶结构优化出相应的薄透镜结构。4)由光学系统薄透镜结构得到光学系统初始结构。本发明提出的光学系统初始结构生成方法操作简单，针对性强，能显著提高光学设计效率。