| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a photo interrupter capable of certainly preventing optical leak from a boundary with a substrate which is sealed with resin, while being capable of resin sealing of a light-emitting device or a light-receiving device without narrowing the mounting space of the substrate wherein through-hole electrodes for external connection are formed. <P>SOLUTION: A photo interrupter 21 comprises a light-emitting device 28 whose light emitter 23 is mounted on a substrate 22, a light transparent resin object 30 by the light emission side for sealing the light-emitting device 28, a light-receiving device 40 whose light receiver 24 is mounted on a substrate 22, and a light transparent resin object 42 by the light-receiving side for sealing the light-receiving device 40. Further, the photo interruptor is provided with a first substrate 22a wherein the substrate 22 has first through-hole electrodes 22b and 22c for external connection; and a light-emitting side substrate 23a wherein the light-emitting device 28 and the light-receiving device 40 are mounted, and a light-receiving side substrate 24a, while closing up the upper part of the first through-hole electrodes 22b and 22c, and connecting conductively with the first through hole electrodes 22b and 22c. <P>COPYRIGHT: (C)2007,JPO&INPIT</p> |
