光通信技术2026，Vol.50Issue(2)：67-71,5.DOI:10.13921/j.cnki.issn1002-5561.2026.02.011
大视场空间相机的无热化光机结构设计
Athermal opto-mechanical structure design for large field-of-view space camera
摘要
Abstract
To address the issues of small field of view and imaging quality degradation caused by temperature variations in ex-isting space cameras,a passive optical athermalization design method is adopted.Combined with ZEMAX software optimiza-tion and finite element analysis,an optical system with a 20°×20° field of view,a spectral range of 450～850 nm,and a focal length of no less than 170 mm is designed.A titanium alloy lens barrel is selected,and triangular weight-reduction grooves are employed to achieve structural lightweight design.The results show that when the system has a Nyquist cutoff frequency of 50 lp/mm and a temperature of 10～30 ℃,the modulation transfer function(MTF)value is greater than 0.71,the root mean square(RMS)of the spot diagram is no more than 9.959 μm,and the structural weight is reduced to 9.114 kg(weight reduction rate of 23.4％),meeting the requirements for diffraction-limited imaging.关键词
大视场空间相机/光机设计/无热化/轻量化Key words
large field-of-view space camera/opto-mechanical design/athermalization/lightweight分类
信息技术与安全科学引用本文复制引用
王海鹏,白素平,于信,周子文,沈宝亮..大视场空间相机的无热化光机结构设计[J].光通信技术,2026,50(2):67-71,5.基金项目
国家自然科学基金青年基金项目(62205032)资助 （62205032）
长春理工大学青年基金项目(XQNJJ-2019-01)资助 （XQNJJ-2019-01）
吉林省科技发展计划项目(20220201097GX)资助. （20220201097GX）
