公开(公告)号：US20040017764A1

公开(公告)日：2004-01-29

申请号：US10445300

申请日：2003-05-27

申请人： PIONEER CORPORATION

发明人： Jun Suzuki ,  Eiji Kuroki ,  Muneyuki Horiguchi

IPC分类号： G11B007/00 ,  G11B017/00 ,  G11B021/16

CPC分类号： G11B7/0935 ,  G11B7/093 ,  G11B7/0932 ,  G11B7/0933 ,  G11B7/12

摘要： The actuator is used in a pickup device for a drive device of an optical disc. The actuator is positioned opposing to the optical disc to irradiates a light beam from a light source to an information recording surface of the optical disc. The objective lens is fixed at on the lens holder forming the actuator at a position closer to one end thereof. One coil substrate is fixed on one side face of the lens holder in a range from the one end of the lens holder to a center portion of the lens holder, and the other coil substrate is fixed on the other side face of the lens holder in a range from the other end of the lens holder to the center portion of the lens holder. Therefore, near the end of the lens holder on the objective lens side, the coil substrate is not attached to one side of the lens holder, providing a space below the objective lens. By arranging an optical system to guide the light beam to the objective lens via the space, the optical system can be arranged at the same height level as the actuator.

摘要翻译： 致动器用于光盘的驱动装置的拾取装置中。 致动器定位成与光盘相对，以将来自光源的光束照射到光盘的信息记录表面。 物镜固定在形成致动器的透镜架上，靠近其一端的位置。 一个线圈基板在从透镜保持架的一端到透镜保持架的中心部分的范围内固定在透镜保持器的一个侧面上，另一个线圈基板固定在透镜保持器的另一侧面上 从透镜保持器的另一端到透镜保持器的中心部分的范围。 因此，在物镜侧的透镜保持架的端部附近，线圈基板未安装在透镜保持架的一侧，在物镜下方设置有空间。 通过布置光学系统以经由空间将光束引导到物镜，光学系统可以布置在与致动器相同的高度水平处。

公开(公告)号：US20040013079A1

公开(公告)日：2004-01-22

申请号：US10445308

申请日：2003-05-27

申请人： PIONEER CORPORATION

发明人： Jun Suzuki ,  Eiji Kuroki ,  Muneyuki Horiguchi

IPC分类号： G11B007/00 ,  G11B017/00 ,  G11B021/16 ,  G02B007/02

CPC分类号： G11B7/12 ,  G11B7/093 ,  G11B7/0932 ,  G11B7/0933 ,  G11B7/0935

摘要： The pickup device is used in a drive device of an optical disc and is opposed to the optical disc to irradiate a light beam from a light source onto an information recording surface of the optical disc. The pickup device has the actuator including the objective lens for condensing a light beam on the information recording surface of the optical disc, and irradiation of a light beam on the optical disc is controlled by moving the objective lens. Further, the pickup device has the optical system for directing a light beam, which is emitted from the light source, to a position below the objective lens. The optical system is placed at the same height level as the actuator. Therefore, as compared with the case where the optical system is provided below the actuator, the whole pickup can be smaller in thickness, and it is possible to provide a pickup device suitable for a thin drive device.

摘要翻译： 拾取装置用于光盘的驱动装置中，并且与光盘相对，以将来自光源的光束照射到光盘的信息记录表面上。 拾取装置具有致动器，其包括用于将光束聚光在光盘的信息记录表面上的物镜，并且通过移动物镜来控制光盘上的光束的照射。 此外，拾取装置具有用于将从光源发射的光束引导到物镜下方的位置的光学系统。 光学系统被放置在与致动器相同的高度水平处。 因此，与将光学系统设置在致动器下方的情况相比，整个拾取器的厚度可以更小，并且可以提供适合于薄型驱动装置的拾取装置。