With the development of artificial lighting technology, human can breakout the limitation of the natural light and make it possible to create a brilliant civilization. However, the wide used outdoor artificial lighting caused severe environmental problem called "Light Pollution" due to human's less cognition of using light and excessive light. Obtrusive light at nighttime can do harm to the human health and observation activity. In this paper, the upward light control process of general lighting fixtures was suggested for reducing the adverse effects such as sky glow in the central city and light trespass in the residential areas.

This study fouces on the electricity generation of B1PV system in the super-tall buildings. To improve the efficiency of the B1PV system, solar irradiance and air temperature should be taken into consideration. This study does research on, one of two main parameters, the solar irracliance in the super high-rise buildings. According to the measurement of solar irracliance, it increased with altitude. It is, particularly, more obviously in the super-tall buildings than others. Subsequently, to make an accurate B1PV elecrticity generation prediction，it is necessary to anaiyze the solar irracliance distribution on the super-taII building's facade which is a prerequisite for optimal B1PV system design.

Light pollution is a side effect of industrial civilization. It obscures the stars in the night sky for city dwellers, interferes with astronomical observatories, and, like any other form of pollution, disrupts ecosystems and has adverse health effects. It is most severe in highly industrialized, densely populated areas of North Arnerica, Europe, and Japan. Nowadays, light pollution has become a global problem and the public concerns on disputes of light pollution have been on the rise. Unfortunately, we haven't had any comprehensive and systematic regulation of lighting pollution yet. Therefore, we need to make our own regulation of lighting pollution to deal with it. The purpose of this study is making a research on the standards and countermeasures of light pollution at home and abroad before establishing our own regulation based on which we can resolve and reduce the light pollution.