| 摘要 |
<p>PROBLEM TO BE SOLVED: To eliminate complex and troublesome operations, execute lighting control in response to such conditions as locations in a room, time bands and seasons, and try to save electric power. SOLUTION: A commercial power supply 12 is connected with the power supply terminals of fluorescent lighting apparatuses 11a through 11c having power supply terminals and dimmer terminals, and a dimmer control means 14 controlling the degree of the dimmer operation, is connected with the dimmer terminals. And a controlled variable definition means 15 determines a controlled variable while seasons and time bands are being treated as variables based on data housed in a time table 16, and the dimmer control means is driven based on the aforesaid determined controlled variable. The data of the time table can be set through a communication means 18 from a communication circuit 17, and a data input means 19 converting input data into a specified data form.</p> |
