BATHROOM LIGHTING EQUIPMENT

摘要

PURPOSE:To conduct illumination with the color temperature and illuminance level of illuminating light being changed in response to the temperature change of a bathroom by setting illuminance values of a low color temperature light source and a high color temperature light source according to the room temperature, and diffusing and radiating the lights having different color temperatures from the low color temperature light source and the high color temperature light source. CONSTITUTION:A low color temperature light source illuminance calculation part 3 receives a temperature signal from a temperature sensor 2 and calculates the light flux reduction quantity of a low color temperature light source 1 to determine the illuminance value of the low color temperature light source 1. A high color temperature light source illuminance calculation part 4 calculates such a proper illuminance value of the high color temperature light source as being never lower than a illuminance value set at ordinary temperature at the time of light mixing and never accompanying uncomfortable feeling from the illuminance value of the lower color temperature light source determined in the lower color temperature light source illuminance calculation part 3. A lighting control part 6 controls a high color temperature light source 6 to obtain the illuminance value determined in the high color temperature light source illuminance calculation part 4 and sets the output. A light color diffusing part 7 diffuses the lights having different light colors from the low color temperature light source 1 and the high color temperature light source 6 to radiate a mixed illumination light in the bathroom.