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Source: www.cibse.org

The Society of Light and Lighting (SLL) will be hosting a symposium, named “Better Metrics for Better Lighting” on 15 July 2014 at University College, London. SLL produces the technical journal Lighting Research & Technology (LR&T), which is CIBSE’s international quarterly journal containing refereed paper on all aspects of lighting research and technology. It is published for CIBSE and the Society of Light and Lighting by Sage Publications Ltd.

The aim of this symposium is to raise awareness of the possibilities for improving the metrics which are used in lighting design. By improving these metrics, lighting can be more closely matched to the purpose which is intended and more efficient use can be made of lighting technology.

The symposium will attract large numbers of attendees, such as lighting designers, lighting equipment manufacturers and people involved in the development of lighting standards and guidance.

For a lot of years, the metrics used in the design of lighting have remained unchanged. Such as illuminance, daylight factor, color rendering index and luminous efficacy, they have been ubiquitous. But currently, while things are changing, new metrics are beginning to appear. The Priority Schools Building Programme requires the use of climate base daylight modeling and the latest version of Part L of Building Regulations offers the use of the lighting energy numeric indicator as a method of determining compliance.

But this is just the beginning. Some researchers are suggesting changing color rendering and brightness perception metrics. However, others are suggesting new metrics that reflect the different visual channels in terms of specific lighting applications.

The LR&T symposium will allow time for discussion about the value and utility of the proposed metrics. What’s more, it also will feature presentations from some of the leaders in lighting.

For more information about the symposium please visit: http://www.cibse.org/training-events/july-2014/lr-t-symposium-better-metrics-for-better-lighting

The original five metrics, lumens, watts, efficacy, color rendering index and correlated color temperature

Image by http://www.lightingfacts.com/