Design of large field-of-view low-distortion aerial lens based on high-order aspheres

REN Shangjie; LI Xing; WANG Bin; DONG Ningchen

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Design of large field-of-view low-distortion aerial lens based on high-order aspheres

Optical Devices & System Design | 更新时间：2026-07-23

- Design of large field-of-view low-distortion aerial lens based on high-order aspheres
- OPTICAL TECHNIQUE Vol. 52, Issue 4, Pages: 385-391(2026)
- 作者机构：
  
  1.中国科学院西安光学精密机械研究所，陕西西安 710119
  2.中国兵器工业试验测试研究院，陕西西安 710116
- 作者简介：
- 基金信息：
- DOI：
  CLC： O438
- Received：04 February 2026，
  
  Revised：2026-04-13，
  
  Accepted：14 May 2026，
  
  Online First：23 July 2026，
  
  Published：20 July 2026
- 稿件说明：
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任尚杰,栗星,王斌等.基于高阶非球面的大视场低畸变航拍镜头设计[J].光学技术,2026,52(04):385-391.

REN Shangjie,LI Xing,WANG Bin,et al.Design of large field-of-view low-distortion aerial lens based on high-order aspheres[J].OPTICAL TECHNIQUE,2026,52(04):385-391.
任尚杰,栗星,王斌等.基于高阶非球面的大视场低畸变航拍镜头设计[J].光学技术,2026,52(04):385-391. DOI：

REN Shangjie,LI Xing,WANG Bin,et al.Design of large field-of-view low-distortion aerial lens based on high-order aspheres[J].OPTICAL TECHNIQUE,2026,52(04):385-391. DOI：

摘要

为满足无人机等高几何精度携行平台对超广角、低畸变成像的矛盾需求，基于ZEMAX设计了一款高性能航拍镜头。镜头焦距为4mm，

数为2.8，对角线视场角高达113.6°。为克服大视场引起的几何畸变与像质退化，设计采用了10片式非对称反望远结构，并在核心校正位置应用了高阶双非球面技术，实现了对轴外高级像差和畸变的精确解耦控制。结构上，成功实现了约10mm的光学后焦距，为传感器集成预留了充足空间。结果表明：系统全视场畸变严格控制在小于0.8%，最大场曲小于0.08mm，且在奈奎斯特频率70lp/mm处，全视场MTF均稳定高于0.5，并具有良好的像面相对照度。此外，公差分析验证了该设计在常规精密加工条件下具备良好的制造可行性。本设计成功解决了超广角下低畸变与长后焦的制约关系，各项指标均衡，能够满足高分辨率航拍与测量的使用要求。

Abstract

To meet the conflicting requirements of ultra-wide-angle coverage and low-distortion imaging for high-precision portable platforms such as Unmanned Aerial Vehicles （UAVs）

a high-performance aerial lens is designed using ZEMAX software. The proposed lens features a focal length of 4 mm

-number of 2.8

and a diagonal field of view （FOV） of 113.6°. To overcome the geometric distortion and image quality degradation typ

ically associated with large FOVs

the design adopts a 10-element asymmetric retrofocus structure. Furthermore

high-order double-sided aspheric surfaces are introduced at core correction positions to precisely decouple and suppress off-axis high-order aberrations and distortion. Structurally

an optical back focal length （BFL） of approximately 10 mm is achieved

providing sufficient space for sensor integration. The design results indicate that the optical distortion across the entire field is strictly controlled within 0.8%

and the maximum field curvature is less than 0.08 mm. At the Nyquist frequency of 70 lp/mm

the Modulation Transfer Function （MTF） remains consistently above 0.5 for the full field of view

and the system exhibits good relative illumination across the image plane. In addition

tolerance analysis verifies that the design possesses good manufacturing feasibility under conventional precision machining conditions. This design successfully resolves the constraints between ultra-wide angle

low distortion

and long back focal length

delivering balanced performance that meets the rigorous requirements for high-resolution aerial photography and measurement.

关键词

Keywords

references

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