高等学校多媒体教室投影机有效亮度的研究

Research on Effective Brightness of Projector in Multimedia Classroom of Universities

为了有效界定投影机的亮度是否满足教学要求，文章以ANSI流明算法为基础，结合大量实验，提出了多媒体教室投影机亮度的加权系数K1和教室环境有效亮度系数K2的算法，量化了多媒体教室投影机最佳有效亮度范围。

To decide if the brightness of projector meet the demand of teaching， based on the algorithm of ANSI lumen， the algorithm of weighting coefficient of projector brightness K1 and coefficient of effective brightness of classroom environment is proposed， optimal projector brightness scale in multimedia classroom is also suggested.