杜瓦小型化是制冷型红外探测器组件的发展方向之一，也是未来红外成像系统小型化、集成化发展的需要。由于杜瓦为探测器组件提供光、机、电接口，其小型化设计要综合考虑制冷机的制冷能力、探测性能、真空性能和系统应用等多方面因素。结合杜瓦的结构组成和工作原理，分析了小型化设计的方法及影响。该研究对杜瓦设计有较好的启发和指导作用。

Compact Dewar is not only one of the development directions of cooled infrared detector assembly but also the need for miniaturization and integration of future infrared imaging system. Dewar provides optical, mechanical and electrical interfaces for the detector assembly,so its compact design requires comprehensive consideration of refrigeration capacity, detection performance, vacuum performance and system application. Combined with the structure composition and working principle of Dewar, the method and influence of compact design are analyzed.The research has a better inspiration and guidance for the design of the Dewar.