摘要
主要讲述在多媒体教室中，投影机、投影机灯泡和投影屏幕三者之间的相互关系的问题，并且通过相应的数据加以论述，以此来说明在多媒体教室建设与维护时，如何来处理这些问题。
The relationship between overhead projector, light bulb and screen projection is explained in this essay, so that how to handle the problems of building and keeping multimedia classroom is explained at the same time.
出处
《中国教育技术装备》
2008年第18期53-55,58,共4页
China Educational Technology & Equipment
关键词
投影机
投影屏幕
投影机灯泡
入射光
反射光
overhead projector
screen projection
light bulb
coming ray
Bounce light
