| 摘要 |
Provided is a skylight lamp for achieving, through microcomputer control, a natural light-change such as from a skylight, and a color and a brightness tuned to a biological rhythm. Under supply from a commercial power source, a main body control unit (3) equipped with a microcomputer calculates the times for sunrise and sunset to adjust the power supplied to an energy-saving illuminator (4) that uses an LED or an organic EL and to reproduce the continuously changing color and brightness of the sky in the morning and at dusk, in addition to maintaining the needed brightness during daytime and providing illumination with a brightness and a color tuned to a biological rhythm at night. |
