小学教室多媒体白板和显示屏的眩光状况分析  

An Analysis of Glare of Multimedia Whiteboard and Display Screen in Primary School Classrooms

作　　者：汤韵 钱红丹[2] 秦向阳 王宏图 严霞 王晓峰 TANG Yun;QIAN Hongdan;QIN Xiangyang;WANG Hongtu;YAN Xia;WANG Xiaofeng(Department of School Health Supervision,Wuxi Health Inspection Institute,Wuxi Jiangsu 214000,China;Department of School and Food Hygiene,Wuxi Center for Disease Control and Prevention,Wuxi Jiangsu 214000,China)

机构地区：[1]无锡市卫生监督所学校卫生监督处,江苏无锡214000 [2]无锡市疾病预防控制中心学校与食品卫生科,江苏无锡214000

出　　处：《中国卫生标准管理》2024年第7期10-14,共5页China Health Standard Management

基　　金：无锡市卫生健康委科研项目面上项目(M202165)。

摘　　要：目的 了解无锡市小学使用多媒体时白板/显示屏的眩光情况和影响因素,为正确使用多媒体、避免眩光提供参考。方法 2023年3—9月,选取3所使用不同多媒体教学设备的小学,现场查看所有普通教室上课使用多媒体设备时的灯光、窗帘使用情况,检测白板/显示屏的光泽度;采用分层抽样方法,选取普通白板8间,电子白板6间,显示屏6间,在9月份下午13:00—14:30观察灯光和外界光线对白板/显示屏眩光的影响;改变灯光、门和窗帘的开关状态,找到白板/屏幕完全避免眩光影响的最佳配置。结果 A校普通白板和C校屏幕不同楼层出现眩光的位置数量不同,楼层越高,观察到白板/屏幕眩光的位置越多。B校使用的电子白板无眩光。开黑板灯时C校屏幕有眩光。通过多次试验,控制南北侧窗帘和门的开关,找到晴天完全避免眩光影响的窗帘配置。A校普通白板、B校电子白板、C校屏幕的光泽度分别为61.6、15.8、67.79 GU。结论 白板/显示屏反射眩光的程度与其自身光泽度、侧窗亮度(窗帘开关状态)、黑板灯开关状态、学生座位位置等因素有关。目前很多教室白板/显示屏存在眩光问题,需进一步加强管理,科学避免眩光。Objective To understand the glare of multimedia whiteboard/display screen used by primary schools in Wuxi and its influencing factors;To propose proper use of multimedia and avoidance of glare for reference.Methods From March to September in 2023,three primary schools with different multimedia equipment were selected to research the use of lights and curtains in all ordinary classrooms when multimedia equipment was used in class,and to test the gloss of their whiteboards/screens.The stratified sampling method was adopted to select 8 ordinary whiteboards,6 electronic whiteboards and 6 display boards and observe the influence of classroom light and external light on whiteboard/display screen glare at 13:00-14:30 pm in September.The lights were switched on or off,and the doors and curtains were opened or closed to find the best configuration for the whiteboard/screen to avoid glare completely.Results The number of glare positions of the School A's whiteboards and School C's display screens at different floors was different.The higher the floor,the more glare positions were observed.No glare was detected on School B's electronic whiteboards.School C's display screens produced glare when blackboard lights were switched on.Through many tests,the curtains and doors on the north and south side were controlled to find a curtain configuration completely preventing glare on sunny days.The gloss of School A's ordinary whiteboards,School B's electronic whiteboards,and School C's display screens are 61.6 GU,15.8 GU,and 67.79 GU respectively.Conclusion The degree of glare of whiteboard/display screen is related to its own gloss,side window brightness(curtain opened or closed),blackboard lights switched on or off,student seat position and other factors.At present,many classroom whiteboards/display screens have glare problems,calling for further management to avoid glare scientifically.

关 键 词：眩光 多媒体 白板 显示屏 光泽度 教室 

分 类 号：R951[医药卫生—药学]