Lighting is essential for visual tasks and helps maintain attention levels. By using luminaires that combine direct light on the work surfaces with an indirect light aimed towards the ceiling, a varying and appropriate concentration of light is distributed throughout the room.
If you wish a ceiling with a cleaner look you can work with a recessed solution. Worth thinking about is that you should move out of the fixtures further out towards the walls to get more light on the walls. Even in this solution, it is important to supply board lighting without glare.
A recessed solution should also have installed lighting controls, such as an e-Sense solution to control the various rows of luminaire separately and also create different lighting scenes for different applications or AV light. Just as in all work areas a fitting without glare is recommended.
The standard EN 12464-1 now sets requirements in terms of lighting of ceilings and walls. At Lighting Innovations Africa we believe this is a step in the right direction. But if you want to get the full benefit of light’s positive effects, you need more light than what the legislation requires.
Higher levels of ambient light increase alertness and improve performance
Lighting is essential for visual tasks and helps maintain attention levels. Few pupils spend their day staring down at the desk; frequent interaction with the teacher, fellow students and the teaching surface (whiteboard, chalkboard or interactive screen) mean that their gaze is moving around the room and their focus constantly changing. Often the contrasts between the lighting of the work surfaces, walls and the ceiling tire or strain the eye.
More light on ceiling and walls
By using luminaires that combine direct light on the work surfaces with an indirect light aimed towards the ceiling, a varying and appropriate concentration of light is distributed throughout the room. Vertical light on the wall, 300 lx, provides good ambient light. Indirect light on the ceiling, 300 lx, also provides good ambient light and students who are more alert and perform better.
Light on the work surface
Direct light from the luminaires always gives 500 lx on the table, to make the visual task easier. For reading, uniformity of light is important whereas practical and intricate tasks require high levels of light.
Lighting of the whiteboard
To ensure what is written or displayed on the whiteboard is easy to read, the standard requires a minimum illuminance of 500 lux. The lighting shall be adjustable.
Cylindrical illuminance (in rooms with demands of good visual communication)
Cylindrical illuminance especially affects visual communication and the ability to interpret faces, events and objects. The standard requires a minimum illuminance of 150 lx in rooms with demands of good visual communication.
Adjust lighting after task
The colour rendering properties of the light source are significant when working with design and colour. The colour rendering in general should be at least Ra 80, although for photography this value may need to rise to Ra 90.
The luminaires must be suitable for work at monitors, and avoid glare and veiling reflections. Young people need less light than older people in order to perform the same tasks. As we age, our sensitivity to glare also increases, therefore more light may be needed for adult education classrooms.
Lighting Innovations Africa’s LI-CONNECT lighting control system has been developed for professional installation in educational establishments. The installation and user functions focus on simplicity.
A daylight and presence detector in every row of luminaires adjusts the lighting for all areas of the space. When everyone has left the room, the light switches off and is reset automatically.