| 摘要 |
A front monitor-type optical pickup apparatus is composed of a window 10w for taking in a laser light beam, and a housing 10 for housing a front monitor detector 9 so as to face the window 10w. In the housing 10, the position of the front monitor detector 9 is adjustable. The optical pickup apparatus makes it possible to eliminate dispersion in quantity of incident light upon the front monitor detector attributed to component and assembly dispersion.
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