UCL Institute for Environmental Design and Engineering


UCL IEDE researchers present at the Professional Lighting Summit, June 2016

28 June 2016

abstract news

UCL IEDE gave two presentations and featured in a question time panel at the Professional Lighting Summit  2016 (15th-16th June), a conference in Brighton organised by the ILP (Institution of lighting Professionals).

UCL IEDE PhD student, Longyu Guan and UCL IEDE Lecturer, Jemima Unwin, presented Longyu's PhD work into new daylight metrics and Navaz Davoodian and Peter Raynham presented research on pedestrian vision at night. Peter was also asked to join a Question Time style panel after the day’s presentations which discussed issues such as Smart Cities (including data collecting lamp posts) and whether people have a right to street lighting and darkness. 

Below are brief summaries of the presentations:

Exploring daylight metrics

With the innovation of technology, both our lit environment and the way people perform indoor tasks have changed. Good visual performance became easy to achieve. As a result, the emphasis of lighting design has moved away from the lighting of working planes. Whilst task illuminance is still in use there is now more emphasis on the appearance of the room and the people in them. In fact, the term “working plane” has been nominally removed from the European electrical lighting standard EN 12464-1. Therefore, it is necessary to question the use of working planes in daylight designs. What should we be using? The presenters explored different options and explained the way forward.

Pedestrian vision at night

Research into what people see and need to see at night is critical to the development and application of standards. This presentation described the results of studies looking at the needs of pedestrians and explained how the visual field explored by pedestrians can be used to characterise visual adaption. Is the concept of adaptation luminance important? The findings were reviewed to show how this may drive changes in source spectrum and the spatial distribution of light in road lighting installations.”