| 摘要 |
<p>A composite optical element, comprising at least one optical element (2) installed on one surface of a substrate (1), a semiconductor laser (3) and a light receiving element (4) installed on the other surface of the substrate (1), and an intermediate member (relay substrate) (5) installed between the substrate (1) and the light receiving element (4), wherein the intermediate member (5) further comprising a through-hole (6) allowing a light flux incident on the light receiving element (4) to pass therethrough and conductive portions, wherein the terminal of the light receiving element (4) is connected to a conductor pattern on the substrate (1) through the conductive portions.</p> |
