The Research Of Lighting Environment Of The Classrooms Of Primary And Middle Schools In Nanjing

Whether from the point of energy saving and environmental protection or from the perspective of students’ physical and mental health, school building light environment optimization is of great significance and plays an important role on students’ study. At present, however, there is not enouch research on primary and secondary classrooms natural light environment.In 2004 China revised the standard for" lighting design of buildings", but in the view of the actual conditions, most of the schools still in use of previous teaching building and the reform of light environment is not ideal.This article, through the Nanjing city middle school 12 classrooms for lighting and lighting condition test and research, gives a result of the qualitative and quantitative analysis, analysising the actual situation and the existing problems of the middle and primary school classroom light environment. And also comprises different type of teaching building layout and lighting facilities, lighting in different environment characteristics, analyzing the reasons and proposes some suggestions for improvement according to the primary and secondary school classroom light environmental requirements and local actual situation.The measured data shows that lighting environment of the South porch, north room and double-sided lighting classroom is better, but the desk luminance uniformity is approximately 0.67, slightly lower than a standard value 0.7. However, a single Gallery side lighting classroom desk luminance uniformity is very low, less than 0.2, seriously having an impact on the students’ reading and writing. In cloudy, the blackboard surface illumination does not reach the standard, but the uniformity of illumination all reach standards, In recent years, the new teaching building classroom blackboard illumination uniformity can be reached 0.9 before 2004; build classrooms artificial lighting facilities inadequate, with minimal installation blackboard lamp, indoor lighting is not good to make up for the inadequacy of natural lighting. Based on the test, the authors through the questionnaire survey know the subjective judgment of the students to understand classroom light environment. The results showed, the investigation classroom blackboard are reflective questions within the gallery, single sided lighting classroom is particularly serious.