摘要
红外透镜组的中心偏差是影响光学系统成像质量的重要因素之一。当红外探测器组件在低温环境中工作时,预先常温装配和测试的红外透镜组将产生装配精度失准现象。提出了一种在低温环境中测试红外透镜组中心偏差的方法。通过设计的低温测试系统解决了透镜组低温位置精度测量困难的问题。测试结果表明,该方法可以有效实现红外透镜组中心偏差的低温测试且测试误差优于2μm。此研究对于高性能红外探测器组件研制具有一定的实际意义。
The centering error of infrared multi-lens is one of the important factors affecting the imaging quality of the optical system.When the infrared detector works in the cryogenic environment,the pre-assembled and tested infrared multi-lens at room temperature will cause misalignment of assembly accuracy.A method to measure the centering error of infrared multi-lens in the cryogenic environment is proposed.The difficulty of measuring the low temperature position accuracy of lens group is solved by the designed low temperature test system.The test results show that the method can effectively measure the centering error of infrared multi-lens at low temperature,and the measurement error is better than 2μm.This research has certain practical significance for the development of high-performance infrared detector components.
作者
徐琳
谢春
孙闻
莫德峰
李雪
XU Lin;XIE Chun;SUN Wen;MO De-feng;LI Xue(TongJi University,Shanghai 200092, China;Shanghai Institute of Technical Physics, Chinese Academy of Sciences,Shanghai 200083, China)
出处
《红外》
CAS
2022年第4期20-24,共5页
Infrared
关键词
红外透镜组
中心偏差
低温测试
infrared multi-lens
centering error
cryogenic testing
