红外探测器须封装在真空外壳内,使它能在规定的低温下工作,并不受环境的影响来保证它的性能。探测器杜瓦瓶的基本要求是(1)真空绝热。为了保证在规定低温下工作,必须采取各种真空绝热和辐射屏蔽措施。(2)透过特定波长红外辐射的窗口,既要有较高的透过率,而且与结构形成密封的整 The infrared detector must be packaged in a vacuum enclosure so that it can operate at a specified low temperature and is unaffected by the environment to ensure its performance. Detector Dewar bottle basic requirements (1) vacuum insulation. In order to ensure that the provisions of the work under low temperature, must take a variety of vacuum insulation and radiation shielding measures. (2) through a specific wavelength infrared radiation window, it is necessary to have a higher transmittance, but also with the structure of the formation of a sealed whole