| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a light control device in which air-tightness in a room is increased to improve cooling and heating efficiency. <P>SOLUTION: The light control device 1 is provided with a light control circuit board 50 on which a light control circuit for controlling the light control level of the lighting fixture 2 is mounted and a lighting fixture body 100 which houses the light control circuit board 50 inside. An installation frame 20 to constitute the fixture body 100 is fitted on a construction surface in the state the rear face is in contact with the periphery of the opening of the construction surface. Furthermore, an air prevention sheet is installed interposed between the installation frame and the construction surface, and reduces convection of the air between the room and inside the construction surface, as well as increasing air-tightness in the room. <P>COPYRIGHT: (C)2012,JPO&INPIT |
