For many years, lighting research for interiors has been focused on the twin topics of visibility and visual comfort. The result of this effort has been the development of a validated model that allows the prediction of the effect of lighting and task conditions on visual performance, and an understanding of the conditions that cause visual discomfort. This paper considers whether any more research on lighting conditions for interiors is needed. The answer given is that more research is necessary if we are to fully understand all the impacts of lighting on the health, wealth and safety of people, but not more of the same. Rather, the future of lighting research in interiors lies in a move beyond visibility and visual discomfort to areas where lighting operates on mood and behaviour through the ‘message’ it sends and on health and task performance through the circadian system.
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