The blackboard lamp that many people ignore turns out to be so important
Many people believed that when they were in school, they encountered the situation that the words on the blackboard were very dark and could not see clearly. At that time, they did not realize that this situation can be solved by installing blackboard lights. When students give feedback to the blackboard When the words on the above are not clearly visible, ordinary fluorescent lights are usually used to illuminate, but this kind of light usually exists that the light is not hit on the blackboard, but is hit on the side, and it is not a good solution. The condition of clearing the words on the blackboard, and because the light is relatively bright, and there is also the appearance of glare, it will take away part of the students' attention.
What are the advantages of using blackboard lights? This kind of light uses an asymmetrical distribution method when illuminating, and at the same time uses a reasonable installation, so the light can be evenly presented on the blackboard. When the teacher writes on the blackboard, Students can see it and will feel particularly comfortable visually. What position is the blackboard lamp installed under normal circumstances? If you are careful, you will find that the lamp is usually installed directly above the blackboard, which will cause the top and bottom of the blackboard to reach different distances to the light, thus ensuring asymmetrical lighting The appearance of this kind of asymmetric light can effectively prevent the unevenness of the blackboard light.
Many people think that the blackboard lamp can be installed above the blackboard. In fact, this concept is wrong. This kind of lamp does not belong to professional light distribution, so there are obvious requirements in the installation position. The blackboard lamp needs Where is it placed? Simply put, it is the top of the blackboard that the first row of students can see, and the reflection is at the intersection of the wall above the head.
