中学教室天然光环境视觉舒适度实验研究  

Experimental Assessment of Visual Comfort in Daylight Environment of Secondary School Classrooms

作　　者：边宇[1] 林佳 冷天翔[1] BIAN Yu;LIN Jia;LENG Tianxiang(School of Architecture,State Key Laboratory of Subtropical Building Science,South China University of Technology,Guangzhou 510640,China)

机构地区：[1]华南理工大学建筑学院,亚热带建筑科学国家重点实验室,广东广州510640

出　　处：《照明工程学报》2021年第6期1-4,共4页China Illuminating Engineering Journal

基　　金：国家自然科学基金“中学教室天然光环境视觉舒适度评价研究:以广州为例”(项目编号:51978277)。

摘　　要：视觉舒适是充分利用天然光的前提条件,在广州开展的调查认为中学教室中的视觉不舒适问题很普遍,但针对该问题缺少实验研究,有必要通过实验掌握教室天然光环境中的视觉不舒适度问题的特征及其影响程度。本研究通过问卷调查、现场测量掌握问题的主要方面,据此,将足尺的采光测试室布置为教室作为实验环境,一方面组织人员进行视觉不舒适程度的主观评价,另一方面通过仪器测量相应的客观光环境参数,通过数据统计分析得出导致视觉不舒适的主要因素的影响程度及所对应的评价指标值。为期10个月的测试中,共35名受测人员参与实验评价与测试,收集了2300组测量与评价数据。研究的结论为:黑板面反射光线所形成的光帷眩光是学生反应最严重的视觉不舒适来源,当黑板面上的亮度对比度≥1.4时眩光无干扰。Visual comfort is a prerequisite for making full use of daylight.A survey carried out in Guangzhou found that visual discomfort issues in secondary school classrooms are quite common,but there is a lack of experimental research on this problem.It is necessary to access the characteristics and influence degree of visual discomfort in the daylight environment in classrooms through experiments.In this study,the main aspects of the problem were mastered through questionnaire survey and on-site measurement.Based on this,a full-sized daylighting test room was arranged to a classroom as the experimental environment.On the one hand,subjects were organized to carry out subjective evaluation of visual discomfort degree,and on the other hand,the corresponding objective light environment parameters were measured by instruments.Through the statistical analysis of the data,the influence degree of the main factors leading to visual discomfort and the corresponding evaluation metric value are obtained.During the 10-month test,a total of 35 subjects participated in the experimental evaluation and testing,and 2300 sets of measurement and evaluation data were collected.The conclusion of the study is that the veiling glare generated from the light reflected by the blackboard is the students reported most serious source of visual discomforts,and when the luminance contrast within the blackboard surface is no less than 1.4,the glare has no interference.

关 键 词：教室 视觉舒适 天然光 眩光 亮度对比度 

分 类 号：TM923[电气工程—电力电子与电力传动]