冬季北方地区无霜期短，为使中小学教室更好地利用天然光线来光，并制定出适合北方冬季的照明启闭时间，我们与哈尔滨市六所中小学校一起对各学校有代表性的教室采光骼明情况进行了实测调查，结果表明：阳面教室在9：00～14：30时教室内自然采光照度的平均值达到卫生标准（＞15 Winter in northern frost-free period is short, so that primary and secondary classrooms to make better use of natural light to light, and to develop a winter lighting for the northern opening and closing time, we and six primary and secondary schools in Harbin representative of the school classroom lighting According to the results of field surveys, the results showed that the average value of natural lighting illumination in the classroom reached the standard of hygiene (> 15 at 9:00 ~ 14:30)