红外技术2026，Vol.48Issue(1)：79-84,6.
大景深水下广角镜头的光学设计与分析
Design and Analysis of Wide-Angle Underwater Optics with Extended Depth-of-Field
高举 1孙爱平 1王福涔 1董海阔 1杨宇杰 1王家峥 1李训牛 1陈洁 1余佳桐 1刘珂2
作者信息
- 1. 昆明物理研究所,云南 昆明 650223
- 2. 31676部队,西藏 昌都 854000
- 折叠
摘要
Abstract
In this study,a large depth-of-field underwater wide-angle lens was designed based on the characteristics of underwater imaging.Depth-of-field extension technology was adopted to ensure clear imaging of underwater targets at a distance of 3500 mm,and objects within the extended depth-of-field range were clearly imaged by the optical system.The lens achieved a full field-of-view of 90° and focal length of 4.92 mm,with the total optical length controlled within 40 mm.It employed five standard spherical lenses,which significantly reduced the processing difficulty and manufacturing costs,which were thus lower than those of traditional seven-lens structures.At a full-field Nyquist frequency of 83 lp/mm,the modulation transfer function(MTF)of the optical system was better than 0.5,and the imaging quality at the central field-of-view was close to the diffraction limit.Tolerance analysis and experimental verification results demonstrated that the design satisfied the requirements for low-cost mass production and assembly,demonstrating strong potential for engineering applications.关键词
水下广角镜头/景深/景深延拓Key words
underwater wide-angle lens/depth of field/extended depth of field分类
信息技术与安全科学引用本文复制引用
高举,孙爱平,王福涔,董海阔,杨宇杰,王家峥,李训牛,陈洁,余佳桐,刘珂..大景深水下广角镜头的光学设计与分析[J].红外技术,2026,48(1):79-84,6.
