Lumenberegning

Lumenberegning is a term often encountered in lighting design and relates to the calculation of lumens required for a specific space. Lumens are a unit of luminous flux, measuring the total quantity of visible light emitted by a source per unit of time. Therefore, lumenberegning is essentially the process of determining the total amount of light needed to adequately illuminate an area according to its intended use.

The process typically involves considering several factors. The size of the room or area to be lit is a primary consideration, as larger spaces generally require more light. The purpose of the space is also crucial; for example, a workspace requiring detailed tasks will need higher illumination levels than a residential living room. The reflectance of surfaces within the space, such as walls, ceilings, and floors, also plays a role, as lighter surfaces reflect more light, potentially reducing the number of lumens needed.

Furthermore, lumenberegning takes into account the type of light fixture and its light distribution pattern. Different luminaires emit light in various directions and intensities, and this must be factored into the calculation to ensure light reaches the intended surfaces effectively. Finally, desired illuminance levels, often specified in lux (lumens per square meter), are the target that the lumenberegning aims to achieve. By combining these elements, designers can specify the appropriate number of lumens needed from their lighting system.