Dissertation in the field of illuminating engineering, Wei LUO, MSc

Wei LUO's dissertation takes place in Aalto University School of Electrical Engineering on Friday 27 June 2014 at 12 noon. The title of the thesis is "Outdoor lighting – Mesopic photometry, adaptation conditions and user preferences in pedestrian way lighting".

Research of adaptation conditions and user preferences in pedestrian way lighting

Lighting criteria for road and pedestrian ways are to make the objects on the road visible without causing discomfort to the road users. The current CIE and CEN lighting recommendations are based on experiments conducted in foveal vision based on photopic photometry. The recommended values are mostly based on research performed no later than in the 1980s or else they completely lack scientific data. New experiments and studies are needed to define recommendations for the motorized and pedestrian way lighting on the basis of mesopic photometry. Visual adaptation field studies are needed in order to implement the CIE mesopic photometric system. This work studied visual adaptation fields by using eye-tracking system in pedestrian way lighting. Eye-tracking data, such as fixation counts and dwell times, were recorded. In addition, user preferences for lighting were collected by using a questionnaire and by relating the feedback with the measured lighting parameters. This research work provided facilities for investigating adaptation conditions in outdoor lighting and in defining adaptation luminances.

The opponents are Professor Marc Fontoynont (Aalborg Universitet) and Dr. Teija Vainio (Tampere University). The supervisor is Professor Liisa Halonenfrom Aalto University School of Electrical Engineering, Department of Electrical Engineering and Automation.

Further information:

Wei LUO, +358 458 911 606, wei.luo@aalto.fi
Notice of dissertation (pdf)
Electronic dissertation (otalib.aalto.fi)