Is classroom lighting the same as blackboard lighting?
When many school leaders plan to install or upgrade classroom lighting for new classrooms, they often do not understand why the classroom lighting design drawings say "configure 12 classroom lights and 3 blackboard lights". They usually think that classroom lighting includes blackboard lighting. Classroom lights also include blackboard lights.
Classroom lighting does include blackboard lighting in a broad sense, so it is not wrong for school leaders to think that blackboard lights are classroom lights, but in the campus lighting design scheme, classroom lighting only refers to the lights responsible for illuminating students' desktops and podiums, excluding blackboards Including lighting, because the lighting of the blackboard needs another kind of lighting to be responsible, that is to say, classroom lights should not be used to illuminate the blackboard, and blackboard lights should not be used to illuminate the desktops of students.
The most common classroom lights are educational lighting LED panel lights. The lampshade has a grille anti-glare type and a micro-prism anti-glare type. The light-emitting area is large and the illumination is uniform and symmetrical. Venucia educational lighting experts told us that in the educational lighting industry standard, classroom lights should be evenly arranged vertically (the long axis of the lamps is perpendicular to the blackboard), and the vertical distance between the lamps and the desk should not be less than 1.7m, that is, the installation height of the classroom lights should be Referring to the height of the desk, the height of the desk in primary and secondary schools is generally about 70cm, and the height of the desk in kindergarten is generally about 50cm. The specific desk height should be adjusted according to the average height of students in local schools.
The standard of the blackboard light is different from that of the classroom light. The blackboard lighting should use special blackboard lamps with asymmetric strong light distribution characteristics. The blackboard light should be installed parallel to the blackboard. The vertical distance is {{0}}.1m to 0.2m, and the control angle of the blackboard light should be adjusted to avoid direct glare to the teacher by the blackboard light. The height of the blackboard itself is generally between 1.0-1.2m, the installation height of the blackboard is generally between 0.8m-0.9m in primary schools, and between 1.0m and 1.1m in middle schools. The specific installation height of the blackboard should be the average of local school students. Height adjustment.
Why do blackboard lighting use blackboard lights with asymmetric strong light distribution characteristics, instead of classroom lights with uniform light distribution? Because the blackboard lights cannot be placed in the vertical center of the blackboard, which will block the sight of students and teachers. It is placed above the blackboard, and in order to ensure high uniformity of illumination on the blackboard, only blackboard lights with asymmetrical strong light distribution characteristics can be used to control the part of the blackboard that is close to the blackboard light and the part of the blackboard far away from the blackboard light. Illumination is not much different.
The classroom lighting dimming system should be controlled by multiple loops. Each lamp in the first horizontal row of classroom lights should be controlled by a separate loop switch. When using multimedia teaching, the lighting and illuminance can be adjusted separately. Each of the other column lamps is controlled by an independent circuit switch.
The blackboard lighting should also be controlled by multiple loops. Each lamp should be controlled by a separate loop switch. When using multimedia teaching, the lighting and illuminance can be adjusted separately. The smart campus lighting system can not only control campus lighting fixtures, but also use IoT technology to intelligently manage school lighting, electrical, campus security and other equipment to create a new generation of healthy, intelligent, and energy-saving campus lighting environment! In the realization of the whole school On the basis of a healthy light environment, the platform can monitor the operating status of electrical, security and other equipment in real time and respond quickly.
