| 摘要 |
An actuator for an optical pick-up device is provided to couple a lens holder to a bobbin stably and ensure a uniform coupling force in each portion of the lens holder. An actuator for an optical pick-up device includes a bobbin(20), a lens holder(60), and a guide(70). The bobbin(20) has a plurality of mounting holes such that a plurality of objective lenses are installed to record/play optical discs having different recording densities. The lens holder(60) is coupled to at least one among the objective lenses, and installed in at least one among the installation holes. The guide(70) guides the bobbin(20) such that the bobbin(20) is coupled to each portion of the lens holder(60) with a uniform coupling force when the lens holder(60) is coupled to the bobbin(20).
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