| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To keep illuminance in a room at a desired illuminance level. <P>SOLUTION: This system has: a lamp 6; a lighting circuit 5 for lighting the lamp 6; an external light illuminance detecting part 1; a memory 2 for storing the first correlation data table as to correlation between an output from the external light illuminance detecting part 1 and a modulation level of the lamp 6, and for storing a correction data table used for modulation of the modulation level; and a control part 3 for receiving the output from the external light illuminance detecting part 1, for reading thereafter the first correlation data table stored in the memory 2 to compute the modulation level, and for reading the correction data table to correct the modulation level based on the correction data table, so as to transmit a modulation signal to a lighting circuit. <P>COPYRIGHT: (C)2004,JPO</p> |
