| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an illumination device having excellent space efficiency, a short construction period for installation, easy maintenance, and further excellent dust-proof property and capable of realizing reduction in the construction cost and running cost, and to provide a system ceiling using the illumination device. <P>SOLUTION: In the illumination device, a mounting part on an upper floor slab is provided at an upper end, and a ceiling frame is equipped which has the mounting part of which the lower part is made a hollow part. In the ceiling frame, a housing recessed part is provided below the hollow part, and the housing recessed part is opened downward. Inside the housing recessed part, a lighting module is incorporated which is composed of a light-emitting diode, a reflector for reflecting emission light of the light-emitting diode, and a lighting cabinet on which these light-emitting diodes and reflectors are mounted in a plurality of numbers. <P>COPYRIGHT: (C)2008,JPO&INPIT |
