Lighting communication with focus on perception and energy
How can we talk about light for everyone to understand? A common language would facilitate light planning and promote energy-efficient and comfortable light environments. Methods are developed to measure experienced lighting properties and the knowledge is translated into tools that support communication about light between different stakeholders.
Aim and goal
Perceptual Metrics aims to promote energy-efficient light environments that are also comfortable.
Sweden is facing a shift towards more energy efficient lighting and the potential for energy savings is high. However, modern energy-efficient lighting sometimes causes reduced comfort. One reason may be the difficulty of communicating about light quality. Today, conventional measures such as luminance, illuminance and colour temperature are used, but they only describe a limited part of the light experience. Visual properties should be included as well, but both concepts, knowledge and tools are lacking.
Within Perceptual Metrics, RISE and LTH develop two different methods for measuring the human experience of lighting. In collaboration with companies from the lighting and real-estate industries, the concept of ‘light quality’ is extended and tools that support communication between different stakeholders are developed. The goal is a greater focus on perceived light quality and to develop a common language about light for different stakeholders involved in lighting design and procurement.
A common language for describing light is expected to increase understanding between e.g. lighting designers, real-estate companies, suppliers and installers. The deviation between expectation and final light environment reduces and the acceptance for energy-efficient solutions increases. Thus, the project contributes to efficient use of energy, comfort and well-being.
Perceptual Metrics for Lighting Design
RISE role in project
Project manager and participant
4 889 000 SEK
Lunds Universitet, Högskolan i Kristianstad, Representatives from the Swedish lighting industry and professional customers, including e.g. Fox Design, Philips Lighting Sweden, Ljusrum, Annell Ljus + Form, ÅF-Infrastructure, Thorn Lighting, Akademiska Hus.