讨论了长波无热化镜头设计方法, 采用新的玻璃材料硫系玻璃进行了光学系统的设计, 介绍了硫系玻璃的特性和应用方向, 分析了光学镜头无热化的设计方法, 并根据技术要求设计了基于硫系玻璃的长波红外无热化镜头, 通过合理的将硫系玻璃和其他红外材料进行匹配, 通过优化设计, 在宽温度范围内得到了较好的成像效果。

The design method of long-wave athermal lens is discussed. The new chalcogenide glass material is adopted in the design of optical system. The characteristics and applications of the chalcogenide glass are introduced. The design method of athermal optical lens is analyzed. And the long-wave infrared athermal lens with chalcogenide glass is designed on the basis of technical requirements. By matching the chalcogenide glass with other infrared materials reasonably, through system optimized design, a better imaging effect is obtained in a wide temperature range.