| 摘要 |
PURPOSE: An optical pickup apparatus is provided to reduce the size and production cost and to accurately and efficiently detect the optical power of a various-purpose semiconductor laser. CONSTITUTION: An optical pickup apparatus has a various-purpose semiconductor laser(11), an integrated optical assembly(20) for guiding outgoing light to an optical disk and for separating reflected light, a light receiver(60) for receiving light and converting the received light into an electrical signal, and a coupling member(80) for retraining a positional relationship among the various-purpose semiconductor laser, the integrated optical assembly, and the light receiver. By using a various-purpose semiconductor laser, the optical pickup apparatus is made in a small size at a low cost and is accurately assembled. The optical pickup apparatus is capable of accurately and efficiently detecting the optical power of the various-purpose semiconductor layer.
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