| 摘要 |
A semiconductor laser apparatus includes a semiconductor laser element, a lead frame on which the semiconductor laser element is mounted, and an enclosure attached to the lead frame. When a direction in which a main beam is emitted from the semiconductor laser element is defined as forward, the lead frame has a reference surface serving as a reference for the semiconductor laser element in a forward or backward direction of the main beam, behind a portion where the semiconductor element is mounted. |
