| 摘要 |
<p>PURPOSE:To improve the working environment by changing the color temperature at the place where no outside light enters like at the place where outside light enters. CONSTITUTION:This lighting system is provided with three kinds of fluorescent lamps 7a, 7b, 7c having different color temperatures and provided in an underground space and a color thermometer 4 measuring the color temperature of the outside light, and the color temperature signal based on the color temperature measured by the color thermometer 4 is inputted to a microcomputer 6. The microcomputer 6 outputs the command signal to a driver 5 in response to the color temperature signal from the color thermometer 4, and one of the fluorescent lamps 7a, 7b, 7c corresponding to the color temperature of the outside light is lighted.</p> |
