煤矿井下照明是保证作业过程顺利进行的基本条件之一。矿井照明的好坏,不仅对提高煤矿劳动生产率,而且对于减少各种机械和人身事故,保证安全生产也有着极为重要的作用,如果照明只单靠头灯,其光束只能集中照射于一个小圆圈内,矿工便不可能利用其边围视 Underground lighting is one of the basic conditions to ensure the smooth operation of the operation. Mine lighting is good or bad, not only to improve the productivity of coal mines, but also to reduce a variety of mechanical and personal accident, to ensure safety in production also plays a very important role, if the lighting alone headlamps, the beam can only focus on a small circle Within, miners will not be able to use their surrounding views