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发明申请
US20080198727A1 Optical Pickup Unit for a Desk Drive and Disk Drive Comprising Such an Optical Pick up Unit 审中-公开
用于台式驱动器和磁盘驱动器的光学拾取单元，包括这种光学拾取单元

Optical Pickup Unit for a Desk Drive and Disk Drive Comprising Such an Optical Pick up Unit
摘要：
An optical pickup unit for an optical disk drive, comprises a lens holder (27) including a lens having an optical axis, suspension wire members (33-36) suspend the lens holder (27) in a support frame in a cantilever fashion. The wire members constrain movement of the lens holder relative to the support frame, but allowing at least a translation in a focussing or axial direction (z), parallel to the optical axis of a lens in the lens holder (27). The wire members are fixed to the lens holder in positions at a distance from each other at least in focussing and tracking directions (z, x). The wire members are bent around an axis parallel to the radial direction (x) so as to allow an at least limited rotation about an axis in a tracking or radial direction (x) as well. In this way, an active alpha tilt correction is made possible with simple means.
摘要（中）：

一种用于光盘驱动器的光学拾取单元，包括具有光轴的透镜的透镜保持器（27），悬挂线构件（33-36）以悬臂的方式将透镜保持器（27）悬挂在支撑框架中。 线构件限制透镜保持器相对于支撑框架的移动，但允许至少平行于透镜保持器（27）中的透镜的光轴的聚焦或轴向方向（z）的平移。 线构件至少在聚焦和跟踪方向（z，x）上彼此相距一定距离的位置固定在透镜架上。 线构件围绕平行于径向方向（x）的轴线弯曲，以便允许围绕跟踪或径向方向（x）的轴线进行至少有限的旋转。 以这种方式，通过简单的手段可以进行有效的α倾斜校正。

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