A qualitative study of occupant controlled office lighting

This study of open-plan office buildings equipped with locally addressable dimmable lighting relates luminance patterns and levels within the interior to users’ subjective assessments of them. The parts of the field of view which appeared to be related to occupants’ subjective assessments of lighting quality were identified. Luminance measurement was based on digital photography. Occupants on the whole had positive perceptions of lighting quality strongly suggesting that the significant energy savings previously shown to be attributable to systems were not achieved at the expense of occupant comfort.