Lund University


Light is more important for health and well-being than most people realize. Sleep deprivation, stress and concentration difficulties are examples of disorders that scientist mean can be avoided with user adapted variation of the lighting. This is called human-centric lighting and is the focus of Inside Light at LU Open. Human-centric light is based on the understanding that good lighting is crucial for the wellbeing of humans, is more and more established among researchers. The human body is programmed for 12 hours light and 12 hours darkness every day. In modern urban life, this natural variation of the light is deranged due to overconsumption of light, for example electrical light in the streets and also at home, more or less 24 hours a day. Also, people spend more time indoors and our bodies lack access to natural outdoor light. This cause stress, sleep deprivation and concentration difficulties. It is not only the amount of light that matters; it is also about having the right type of light, at the right time and the right place. Blue light makes people awake and is therefore good in the morning, while red light is better in the evenings. With LED-lightning it is now possible to vary the light intensity and colour, in a human-centric way. Thus, with knowledge about appropriate use of light it is possible to create better conditions for wellbeing. For example, suitable light in schools can increase the level of concentration and make pupils less stressed and more awake, while better lightning in retirement homes make it easier for elder people to see better and also to wake up in the morning. The effect of the light variation for the body’s circadian cycle is a growing research area, with the first main research results in 2001 and it is a main focus for human-centric lighting. The LED and ICT technology is no enabling possibilities to control the light and create conditions for a more harmonious atmosphere. It is necessary to build indoor lighting systems that are adapted to our needs and generate a suitable light variation, over the day. Better control of the light will also lead to energy savings, since light will not be used in unnecessary spots and in an excessive way. At LU Open, we work with the challenge to create better lighting for people in CEEBEL and the EU projects Enigma and SSL Erate. We do this through open innovation processes and cross-faculty collaboration.




Innovative light to create regional growth

New strategic partnership between Sweden and Denmark predicts a bright autumn with growth potential in the region. In the fall of 2015, when darkness starts to dominate the day, our region’s largest ever cooperation on lighting will begin when actors in the Capital Region, Region Zealand and Region Skåne kicks off the project Lighting Metropolis.