| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an illumination system that performs stable communication while securing safety of a reception antenna of an illumination device. <P>SOLUTION: A sensor part and the illumination device 11 are provided so that some of them penetrate an indoor ceiling ST. The antenna 15a of a radio part 15 on the side of the illumination device 11 is provided in the illumination device 11 (a casing 11a) so that the antenna corresponds to a through-hole 11b communicated with the outside of the illumination device 11. <P>COPYRIGHT: (C)2013,JPO&INPIT |
