LIGHT AND SPACE –

PLANNING FACTORS FOR HCL

The ideal HCL indoor lighting concept takes into account both the visual and the non-visual effects of light. The aim is therefore not only to ensure good visibility but also to apply the biological properties of light to people. Which planning parameters need to be taken into account? How many luminaires do I need and how should they best be arranged?

PLANNING EXAMPLE FOR A MEETING ROOM

Room definition: 5.0 × 4.0 m = 20 m² with little daylight
Lighting requirements: 450 lux at the eye, 900 lux on the work surface

One panel with 4,000 lm is suitable for 4 – 5 m² (4 – 6 panels for 20 m²)
A maximum of one downlight is required per meter of wall space (not at the window, door or near computer screens)

The following are required:

1 BIOLUX HCL Control Unit
3 – 6 BIOLUX HCL Downlights (depending on the room layout) to illuminate the walls
6 BIOLUX HCL Panels for large-area illumination from above

Short-term positive effects¹

After only a short time, HCL lighting has a positive effect on brain functions – performance and concentration levels are boosted

Long-term positive effects²

Supporting the circadian rhythm promotes well-being, performance and health
Daylight simulation supports the sleep-wake cycle and therefore contributes to improved sleep, more rest and greater vitality
Concentration and performance increase noticeably

_{Source: 1 Journal of Physiology & Behaviour, Vandewalle & Dijk 2009 | 2 http://en.licht.de/}