| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a lighting device with detection accuracy of an illuminance sensor free from deterioration, while weight saving is achieved. <P>SOLUTION: The LED lighting device is provided with a lighting fixture body 200, and a sensor unit 101 having an illuminance sensor 121 fitted to the lighting fixture body 200 for detecting brightness of a space where the fixture body 200 is installed. The sensor unit 101 is provided with a sensor case 110 formed of an opaque material housing the illuminance sensor 121 for transmitting light from the fixture body 200, and a light-shielding sheet 150 fitted to the sensor case 110 for shielding light from the lighting fixture body 200. <P>COPYRIGHT: (C)2013,JPO&INPIT |
