| 摘要 |
<p>PROBLEM TO BE SOLVED: To attain high performance by cutting a sealing part with a base, forming an optically non-translucent film to a cut face, adhering a cut face of a light-emitting element sealing part and a cut face of a light-receiving element to the film integrally so as to avoid direct light from the light-emitting element to the light-receiving element that is a cause to a bias. SOLUTION: A light-emitting element 1 and a light-receiving element 2 mounted on a board 3 are sealed by a transparent resin 9, and the sealed part is cut off together with the base. At least an optical non-translucent film 6 is formed to one cut face. Since a formed face is exposed in the film, the film is easily formed without defects by any of methods such as coating or mounting or the like. The cut face of the sealing part of the light-emitting element and the light-receiving element is adhered to the film integrally. According to this manufacturing method, the complete optical non-translucent film 6 is formed between the light-emitting element 1 and the light-received element 2 and direct light from the light-emitting element 1 to the light-receiving element 2 is prevented and a problem of production of a bias component is solved.</p> |
