| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a security device with a high crime preventive effect by threatening a trespasser with a light emission manner so that the trespasser gets scared. <P>SOLUTION: This device comprises a sensor 7 for detecting a human body H within predetermined detection areas A<SB>0</SB>-A<SB>n</SB>and for outputting a detection signal PD, a light emission means 12 having a plurality of light emitters 8, 9 which emit different light, respectively in response to the detection signal PD, and lighting control means 13A, 13B which light up the plurality of light emitters 8, 9 alternately. <P>COPYRIGHT: (C)2006,JPO&NCIPI</p> |
