| 摘要 |
<p>An optical pickup apparatus is disclosed which can be formed in a minimized thickness while realizing improvement in focusing servo performance, improvement in heat radiation, reduction of the voltage, reduction in number of parts, and reduction of the cost. A swing arm having an optical pickup includes an optical pickup base plate (22) formed from a thin plate member of an iron alloy or a copper alloy, and a hole perforated in the optical pickup base plate (22) is closed up from the opposite sides with a silicon substrate and a glass cover (16) to form an enclosed space. An integrated optical pickup unit (17) including a semiconductor laser (27) and an optical system integrated on the silicon substrate is disposed in the enclosed space.
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