本文介绍了目前国内常用的主动式无热化技术和国外已成功采用的被动式无热化技术的原理。根据国内的加工工艺水平,分别从不同角度:球面系统光学材料匹配;引入非球面;使用简单的机械辅助结构讨论了从国外引进被动式无热化技术的可能性。经实例设计和大量数据分析得出结论。另外还介绍了目前国内适用于热成像的红外光学材料。要保证红外光学系统在较宽的温度范围内正常工作,必须消除温度对红外光学系统的影响,即对红外光学系统进行无热化设 This paper introduces the commonly used active domestic non-thermal technology and foreign countries have successfully adopted the principle of passive non-thermal technology. According to the level of domestic processing technology, from different angles: the optical system of spherical system matching; the introduction of aspheric surface; the use of simple mechanical aided structure discussed the introduction of passive from abroad without the possibility of heating technology. After example design and analysis of a large number of data concluded. In addition, it also introduces the current domestic infrared thermography for optical materials. To ensure the normal operation of the infrared optical system over a wide temperature range, the influence of temperature on the infrared optical system must be eliminated, ie, the infrared optical system should be non-thermal