| dc.description.abstract | Remote sensing instrument are mainly divided into electronic units (EU) and telescope imagers (Telescope). The telescope contain important optical components, optical primary, secondary mirrors and bandpass filter arrays, which require high precision coating technology. In this paper, The IBAD technique has been used to improve the optical properties of the films, to determine the optical stability of optical thin films for aerospace applications, supplemented by high-precision optical monitoring of the thickness of the optical film process to improve the band pass filter stability, good product rate, reduce labor and costs. Using the Macleod thin film software to designed thin film stacks that meets the space specifications, and used micro-patterning to produce optical films, the interval between filters is 700~800µm. The PAN filters and B1-B4 filters is plated and the average transmittances are above 80% for all five band-pass filters, with a rejection transmittance below 0.5%, and pass the space environment testing. The thin films stack of large silver mirror designed by the Macleod thin film design software. It optimized the protective layer to enhance the reflectivity of the silver mirror. The mirror is manufactured by a large diameter cleaner and a large diameter precision optical coater. The mirror with good reflectivity and adhesion, and which can resist environmental influences avoid sulfidation or oxidation. The protective layer enhances the reflectance of 450nm to 900nm to 98.5% . | en_US |