| 摘要 |
PROBLEM TO BE SOLVED: To provide an illumination system that can generate a fine light environment at a place where human beings live.SOLUTION: An illumination device has plural illumination parts which can perform color matching and lighting control and are arranged in plural living spaces, and a controller for controlling lighting of the illumination parts. In a living space where human beings live, the controller controls lighting of the illumination parts so as to obtain (1) a light environment having a first color temperature zone higher than 3,000 Kelvin and a first illuminance zone lighter than 100 lux in a time zone before a predetermined dinner time, (2) a light environment having a second color temperature zone of 3,000 Kelvin or less and a second illumination zone of 200 lux or less in a time zone after the predetermined dinner time, and (3) a light environment increasing from a third color temperature of 3,000 Kevin or less to a fourth color temperature higher than 3,000 Kelvin and also exponentially increasing from a third illuminance of 100 lux or less to a fourth illuminance lighter than 100 lux.SELECTED DRAWING: Figure 5 |
