| 摘要 |
PURPOSE:To provide the more perfect dustproof countermeasure by providing first and second protruding parts at a fixed optical part and a movable optical part, and providing bonding members at the inner walls of the first and second protruding parts. CONSTITUTION:An optical disk apparatus has the optical pickup of a splitting optical system comprising a fixed optical part having a laser light source and an movable optical part which emits a laser beam from the laser light source on the optical disk. A first protruding part 21 is formed on a light emitting surface 20a of a beam splitter 20 in the fixed optical part 17 in this optical disk apparatus. A second protruding part 25 is formed on a light incident surface 18a of the movable optical part 18. Adhesive tapes 22 and 26 are provided at the respective inner walls. In this constitution, dust in the apparatus 12 is blown when the optical disk 15 is rotated, brought into the insides of the protruding parts 21 and 25 and attached to the adhesive tapes 22 and 26. As a result, the absolute number of the dust particles floating in the apparatus is decreased, and the perfect dustproof countermeasure can be achieved. |
