| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a compact and light-weight illuminating device capable of accurately detecting only a vibration attributed to an earthquake and preventing a malfunction of the device. <P>SOLUTION: The illuminating device comprises: a power supply part; a semiconductor acceleration sensor which detects a vibration and outputs a detection signal; a signal processing part which receives the detection signal and performs an arithmetic processing; and an illumination part having a light source which is lighted by the power supply part according to a lighting signal output from the signal processing part, thus, making it possible to detect an earthquake in high accuracy. <P>COPYRIGHT: (C)2013,JPO&INPIT |
