本研究主旨是藉實驗方法探討在學校普通教室內，學生上課看視前方黑板時，天 花面吊掛的照明燈具出現在視野內，所造成直接眩光的不舒適效應。實驗結果在三種教室 常用燈具型式中，具遮光角的遮隔烈燈具平行黑板時，其眩光程度較垂直黑板配置時為低 ，而無遮隔型、半遮隔型燈具以垂直黑板配置時之眩光程度較低。就燈具位置而言，以最 前排愈近視線中心之燈具感覺刺眼人數最多，本研究最後建立教室照明眩光程度之評估式 ，而光源輝度是眩光程度評估之最重要影響因素。

　　　　　The main focus of this study is to understand the classroom direct glare effect of exceeded luminance coming from the suspended luminaries in the situation of student looking to the blackboard. The results of this experiment show that among the three types of classroom luminaries, the cut-off type with better shielding angle and layout setting paralleled to blackboard has lower glare effect. It also shows that either non-cut-off type or semi-cut-off type luminaries with layout perpendicular to the blackboard have lower glare effect. Students whose seat position near to the classroom central line and at front area expresses higher percentage of eye irritation caused by the luminaries. Finally a regression model of glare level rating is established for luminaries of classrooms, and the luminance of luminaries is the most important factor for the glare level rating model.