香港六合彩中特网

香港六合彩中特网 IEDE gave two presentations and featured in a question time panel at the Professional Lighting Summit 聽2016 (15th-16th June), a conference in Brighton organised by the ILP (Institution of lighting Professionals).

香港六合彩中特网 IEDE PhD student, Longyu Guan and 香港六合彩中特网 IEDE Lecturer,聽,聽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鈥檚 presentations which discussed issues such as Smart Cities (including data collecting lamp posts) and whether people have a right to street lighting and darkness.聽

Below are brief summaries of the presentations:

Exploring daylight metrics

With the innovation of technology, both our lit environment and the way people perform聽indoor tasks have changed. Good visual performance became easy to achieve. As a result,聽the emphasis of lighting design has moved away from the lighting of working planes.聽Whilst聽task illuminance is still in use there is now more emphasis on the appearance聽of the room and the people in them. In fact, the term 鈥渨orking plane鈥� has been nominally聽removed from the European electrical lighting standard EN 12464-1. Therefore, it is聽necessary to question the use of working planes in daylight designs. What should we聽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聽application of standards. This presentation described the results of studies looking at the聽needs of pedestrians and explained how the visual field explored by pedestrians can be used聽to聽characterise visual adaption. Is the concept of adaptation luminance important? The聽findings were reviewed to show how this may drive changes in source spectrum and the聽spatial distribution of light in road lighting installations.鈥�