| 摘要 |
An optical pick-up module includes rotating means, a carriage mounting at least a light source and various optical members and disposed movably, and a cover having a first opening formed thereon, a tray having a second opening and having the optical pick-up module attached thereto in order to expose a part of the optical pick-up module form the second opening, and a housing for holding the tray to freely appear, and a third opening is provided on a part of the optical disk attachment region outside portion of the tray which is opposed to the first opening.
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