| 摘要 |
<p>PROBLEM TO BE SOLVED: To realize smallsized and thin-type product, without deteriorating its reliability. SOLUTION: The photocoupler comprises a substrate 32 having a pair of emitting side plated wirings 30a, 30b and pair of light-receiving side plated wirings 31a, 31b, light-emitting element connected to the emitting side wiring 30a, a photodetecting element 34 connected to the receive side wiring 31, a transparent resin block 35 which molds both elements 33, 34 with a transparent resin in a single body, and recesses 36, formed by cutting the resin block 35 off between these electrodes 33 and 34 to optically separate them. The recesses 36 has a screen 37 for blocking the light from direct incidence on the photodetecting electrode from the emitting element 33.</p> |
