Patent ID: 11006504

Abstract:
A method of determining exposure of an occupant (8) to equivalent melanopic lux, EML, in an environment (2) comprising one or more indoor spaces and zero or more outdoor spaces, wherein the environment comprises one or more illumination devices (4, 5) wherein said one or more illumination devices (4, 5) comprise one or more luminaires (4) illuminating the environment with artificial illumination. The method comprises: —accessing light level information from one or more information sources (6, 12) wherein the light level information comprises information at least on the artificial illumination, and based at least in part on said information on the artificial illumination determining where in the environment at least a predetermined EML level is present; —using a tracking system (16) to track the occupant within the environment; and —based on this accessing and tracking, monitoring whether the occupant has been exposed to at least a minimum EML quota, the minimum EML quota comprising the occupant being exposed to at least the predetermined EML level for at least a predetermined time period.