ILLUMINATION APPARATUS AND ILLUMINATION METHOD

摘要

PURPOSE: An illumination apparatus and an illumination method are provided to maintain the illumination of an indoor regardless of surroundings by selectively turning on/off an LED which is installed in a window frame. CONSTITUTION: An illumination apparatus comprises a sensor unit(500), a lighting unit, and an illumination controller. A plurality of LEDs(300) and sensors(505, 510) are installed in a window frame. The sensor which is installed in the interior of the window measures the color temperature and illuminance of indoor illumination The sensor which is installed in the exterior of the window measures the color temperature and illuminance of natural light. The illumination controller controls the lighting unit based on the information from the sensors.