| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a lighting device in which effect of temperature rise in a lighting device to a control circuit is suppressed and execution cost is reduced, and an illuminance adjusting system. <P>SOLUTION: This is an illuminance device to control illuminance of lighting provided in indoors by an outdoor illuminance, and includes a switching control part housing part to house a switching control part which establishes luminance corresponding to the outdoor luminance beforehand and switches the route of a power supply line for supplying power to a lighting lamp part of a lighting device so that it may be the illuminance corresponding to the established luminance value, and controls turning on and off of power supply of the lighting lamp part, a lighting lamp housing part to house the lighting lamp part, and a partition plate to partition the case of the lighting device into the switching control part housing part and the lighting lamp part. <P>COPYRIGHT: (C)2008,JPO&INPIT |
