摘要
为了降低研发成本,缩短研发周期,在设计阶段对安防镜头进行无热化设计是必要的。基于OpticStudio STAR模块作为有限元分析与光学分析之间的接口工具,对一款光圈数为1.6~1.3的安防镜头进行光机热集成分析。在UG中建立有限元模型并导入Ansys中,以镜头正常使用温度区间内的最高和最低温度作为载荷进行热应力分析,得到镜片表面面型数据和相关热应力数据;将面型数据运用STAR模块进行拟合并导入Zemax中进行光学离焦量模拟;通过结构-光学-结构迭代设计,设计出在−40℃~80℃温度范围内像质符合要求的成品镜头。最后通过镜头高低温离焦量测试,验证了镜头在极限温度环境中成像的稳定性,以及光机热集成分析的准确性。
In order to reduce costs and shorten the cycle,it is necessary to carry out heat-free design of security lenses in the design stage.Based on the OpticStudio STAR module as an interface tool between finite element analysis and optical analysis,the optical-mechanical thermal integration analysis of a security lens with an aperture of 1.6~1.3 was performed.The finite element model was established in UG and imported into Ansys.The thermal stress analysis was carried out with the highest and lowest temperatures within the normal operating temperature range of the lens as the load,and the surface profile data and related thermal stress data of the lens were obtained.The profile data were merged into Zemax using STAR module for optical defocus simulation.Through the structure-optical-structure iterative design,the finished lens which could meet the requirements at−40℃~80℃ image quality was designed.Finally,the imaging stability of the lens in the extreme temperature environment and the accuracy of the optical,mechanical and thermal integrated analysis were verified by the lens defocus measurement at high and low temperatures.
作者
司占山
石广丰
唐亚
海鸿松
张庆
SI Zhanshan;SHI Guangfeng;TANG Ya;HAI Hongsong;ZHANG Qing(Shchool of Mechanical and Electrical Engineering,Changchun University of Science and Technology,Changchun 130022,China;Dongguan Yutong Optical Technology Co.,Ltd.,Dongguan 523000,China)
出处
《应用光学》
北大核心
2025年第5期981-987,共7页
Journal of Applied Optics
基金
吉林省科技厅重点技术攻关项目(20190302123GX)。
关键词
光机热集成分析
温度载荷
面型拟合
离焦量
热应力
integrated optical,mechanical and thermal analysis
temperature load
profile fitting
defocusing amount
thermal stress
