Antarctic Dome A is one of the best astronomical observation sites on the earth. However, the extreme environmental conditions in Antarctica make its development and operation challenging. The problem of mirror frosting is a problem that Antarctic astronomical instruments must overcome. This article will discuss the feasibility of ITO thin films used for frost prevention in reflection film system.The experimental results show that the mirror of the ITO thin film integrated with functions of frost prevention and less effect on the mirror surface shape, which is expected to be applied to large telescope at the South Pole.
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