低温光学 meaning in English

cryogenic optics

The main cause of signal ' s decrease in infrared channel of spacecraft flying remote sensing instrumentation is water vapor deposition on the surface of low temperature optical instruments which released from materials
摘要空间遥感仪器红外通道的信号衰减，人轨初期的主要原因是由于材料释放的水汽在低温光学窗口表面沉积，导致红外透射率降低所致。
Space optical system , especially space infrared optical system , cryogenic optical system and some huge space - based telescopes , all work in the environment where there is strong radiation ( such as sun etc . ) out of the field of the system . because of diffraction of the entrance pupil and diffuse scatter of all inner surfaces , the strong stray radiation will reach the detector of the system
空间光学系统，特别是空间红外光学系统、低温光学系统以及某些大型空间望远镜，都工作在系统视场外有强烈辐射源(如太阳等)的“恶劣”环境中，这些强烈杂光辐射经过光学系统孔径的衍射，以及结构与光学件表面的散射，到达系统像面形成杂光。