Quantitative information from measurements or simulations of interior luminous ambiences yields a large quantity of data. These data may be very useful to analyse the performance and comfort of a luminous ambience in design or rehabilitation and promote a controlled use of daylighting instead of artificial light. However it is necessary to interpret these data with terms accessible to architects.
The purpose of our work was both theoretical and applied: we improved data collection and interpretation methods of quantitative data on luminous ambience. We then applied these methods to design a modified luminous ambience in an existing space.
We had the opportunity to work in the cafeteria of the “Galeries du Grand Palais” in Paris.
We improved the measurement method for luminance and chromaticities on the interior opaque and glazed envelope of spaces in natural and mixed lighting (both natural and artificial). We interpreted these measures (a large number of quantitative data) in qualitative terms. On the basis on these analyses, we followed the inverse path: we expressed the concepts for modified luminous ambiences, then built these ambiences. We could verify with measurements the correspondences between our qualitative intentions and measured quantitative data.
This work gave interesting insights for the definition of criteria for the analysis of luminous ambience.