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在人的一生中，80％的信息是通过视觉系统获得的，而视觉需要依赖于光环境的存在。光环境可分为自然光环境和人造光环境，随着人类文明的进步，人类对人造光环境的需求越来越高，现代人70～90％的时间是在人造光环境里工作、学习、生活着，它的量的多少、质的好坏，直接影响着人们的生理状态和心理活动等，怎样为人们提供一个良好的照明环境，以下是一些从事照明事业的工作者的认识。
In a person's life, 80% of the information is obtained through the visual system, and vision needs to depend on the existence of the light environment. Light environment can be divided into natural light environment and artificial light environment. With the progress of human civilization, mankind's demand for artificial light environment is higher and higher. 70% -90% of the modern man's time is to work, study and live in man-made light environment The quantity, quality and quality of the products directly affect people's physiological status and psychological activities. How to provide a good lighting environment for people? The following are some workers who are engaged in lighting business.