| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a crime prevention sensing device for preventing the creeping of light from a light emitting element to a light receiving element only by mounting one member on a substrate, and for preventing the inclination of the light receiving element. <P>SOLUTION: This light projection/reception integral type crime prevention sensing device is configured by mounting the light emitting element 11 and the light receiving element 12 on a substrate 6 installed in a unit main body 3, wherein infrared rays to be emitted by the light emitting element 11 are made to exit to the outside, and the infrared rays to be made incident from the outside are received by the light receiving element 12. In this case, the substrate 6 is mounted with a light receiving element holder 21 equipped with a light receiving holding part 23 fit to the light receiving element 12 for holding the light receiving element 12 and a light shielding cover part 24 extended from the outer peripheral edge of the light receiving element holding part 23 for covering the light receiving element 12. <P>COPYRIGHT: (C)2006,JPO&NCIPI</p> |
