Patent ID: 9084305
Filing Date: 2015-07-14
Classification: A61N,H05B,Y02B

Abstract:
1. A lighting system, comprising: a lighting load including a plurality of light source elements having different kinds of correlated color temperatures; and a lighting control device configured to adjust a light output of the lighting load to a first light output corresponding to a first correlated color temperature and a first illuminance in a first time slot, and to decrease the light output of the lighting load up to a second light output with the passage of time in a second time slot after the first time slot, the second light output corresponding to a second correlated color temperature and a second illuminance, wherein the lighting control device is configured to cooperatively decrease, in the second time slot, a correlated color temperature and an illuminance obtained from the lighting load, the cooperative decrease is performed within a target region defined by Kruithof's Curve in which a horizontal axis represents the correlated color temperature and a vertical axis represents an illuminance, wherein the target re ion is bounded b a first curve that delimits an upper side of the target region and a second curve that delimits a lower side of the target region.