To ensure that light is functional in the internal work space, we use for instance the norm EN 12464-1. It describes for different work situations the minimum average illumination values, the evenness, CRI ,UGR and sometimes the color temperature. But light does more. It can have a very positive effect on human’s well being. Norms 67600 and 5031 tell how.
OliNo implemented the measurement of melanopical effectiveness according to these norms.

See the presentation and its explanatory notes to get an introduction to the two norms. Also is explained how the melanopic effect is measured.