| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a lighting device capable of suitably measuring illuminance even if an illuminance sensor is located in the vicinity of a lighting fixture and controlling a light-emitting level of an illumination light source. <P>SOLUTION: The lighting device 1 to be installed indoors includes the light source 100 arranged on a case, a measurement part 200 arranged on the case and measuring intensity of illumination of the indoors during a stopped period by momentarily stopping light emission from the light source 100, and a setting part 300 for setting the light-emitting level of the light source 100 on the basis of the intensity of illumination. <P>COPYRIGHT: (C)2011,JPO&INPIT</p> |
