This project aims to solve the problem of the urban heat island effect, choose to plan for light pollution in glass curtain buildings, by installing this design on the building facade. Adjustment of façade opening and closing for different sunlight. At the same time, the indoor temperature will also be lowered and the consumption of air conditioning can be saved, and combined with light-sensitive materials to achieve a completely glare-free façade curtain. In order to reduce the urban heat island effect and reduce light pollution in the urban environment.