The classroom lighting scheme and implementation have great operability. Even if a very excellent classroom lamp, classroom lighting design will produce adverse results if it lacks installation experience and improper installation angle.
Classroom lamps mainly include two parts: classroom lamp and blackboard lamp. Classroom lamp mainly refers to the main lighting in the whole classroom, and its illuminance and light cover the whole desktop and classroom; The other is blackboard lamp, classroom lamp. Blackboard lamp is mainly used to illuminate the words and exercises on the blackboard. The installation and light design of classroom lamps are related to the size of the classroom and the layout of lamps. If the design is not good, even the lamps with good brightness will have a large gap with the actual effect and expectation. Not up to standard. In addition, even if the blackboard lamp has a very excellent luminous angle, it will cause visual discomfort to students and teachers due to improper installation. I can't even see the blackboard clearly, resulting in glare, etc.
Before installing the lamps in the classroom, first go through the light simulation, and then install them according to the actual experience, so as to achieve a comfortable lighting environment.
Then, to create a good blackboard lighting, we need to do the following:
Vertical illuminance: the blackboard is the focus of students' attention. In the transformation of classroom lighting, it needs higher vertical illuminance and needs to meet the national standard value ≥ 500lux.
Illumination uniformity: as the blackboard is the key area to display knowledge, the more uniform the light distribution is, the more comfortable the visual feeling is, and the illumination uniformity is ≥ 0.8.
Glare: reflected glare and direct glare are very common problems in blackboard lighting. In order to eliminate the glare effect in blackboard lighting, the following three conditions need to be met. The reflected light from the blackboard surface does not enter the students' eyes; The light source of blackboard illumination does not directly enter students' eyes; The teacher didn't find the blackboard lighting dazzling.
Reasonable lighting design; In order to avoid reflection glare, direct glare and other problems, the installation position and angle of blackboard lamp need professional lighting design. The following is the layout of blackboard lamp.
Separate control switch: in order to facilitate the light of the blackboard to change according to different teaching environments, it is suggested that the blackboard lighting should be controlled separately.
High quality blackboard lamps and lanterns: in addition to meeting the above points, high-quality blackboard lamps and lanterns play an important role