摘要
针对红外成像系统的检测和评估需求,基于光学被动消热差原理,设计了一套用于中波红外仿真系统的投影系统。讨论了红外仿真系统所用投影光学系统的设计思想和设计方法,并对最终的成像效果进行了分析。该系统焦距为250mm,F/2.5,视场角为±2°,总系统长度500mm。依据二次成像系统的设计方法,实现了100%冷光阑效率,且其调制传递函数在17lp/mm处接近于衍射极限,能在-20℃~60℃范围内无需调焦便可保证成像的稳定性,具有分辨率高、均匀性好、可加工性强等优点。
In order to test and evaluation the infrared imaging system,in this paper,a projection optical system was designed based on the passive optical athermal theory,which can be used in mid-wave infrared scene projector. The design idea and method of projection optical system of infrared scene projector were discussed and the last imaging quality was also analyzed. In this paper, an infrared projection optical system with f=250mm,F/2.5,ω=±2°was designed and it＇s total length was 500 mm. According to the design method of dual-imaging system,a 100% of cold stop efficiency was realized and MTF was near to diffraction limit at the 17lp/mm. This system could keep imaging stability in the range of-20~60℃ without focusing and had the advantage of high resolution,excellent uniformity,high machinability and so forth.
出处
《长春理工大学学报（自然科学版）》
2017年第4期38-40,44,共4页
Journal of Changchun University of Science and Technology(Natural Science Edition)
关键词
光学设计
二次成像
红外仿真
投影光学系统
lens design
re-imaging
infrared simulation
projection optical system
作者简介
庞广宁（1992-），男，硕士研究生，E-mail：841021180@qq.com
通讯作者：王春艳（1971-），女，博士，教授，E-mail：245044961@qq.com
