公开(公告)号：US20040066729A1

公开(公告)日：2004-04-08

申请号：US10669434

申请日：2003-09-25

Applicant: PENTAX Corporation

Inventor： Suguru Takishima

IPC: G11B007/135

CPC classification number: G11B7/1378 ,  G11B7/08582 ,  G11B7/13927

Abstract: An optical disc drive includes an optical head having a stationary portion and a movable portion. The movable portion supports an objective lens for converging a beam emitted from the stationary portion on an optical disc. The movable portion moves radially across an optical disc in order to irradiate the beam on a desired track of the optical disc. The optical disc drive is further provided with an aberration correcting lens that corrects aberration caused by the objective lens. The aberration correcting lens is mounted on the movable portion so as to be movable in a direction substantially orthogonal to a movable direction of the movable portion, which may parallel or perpendicular to the optical disc. The aberration correcting lens is moved in accordance with a variation of the aberration caused by the objective lens.

Abstract translation: 光盘驱动器包括具有静止部分和可移动部分的光学头。 可移动部分支撑用于将从固定部分发射的光束会聚在光盘上的物镜。 可移动部分径向地移动穿过光盘，以便将光束照射在光盘的期望轨道上。 光盘驱动器还设置有校正由物镜引起的像差的像差校正透镜。 像差校正透镜安装在可移动部分上，以便可以在与可移动部分的可平行或垂直于光盘的可移动方向基本正交的方向上移动。 像差校正透镜根据由物镜引起的像差的变化而移动。

公开(公告)号：US20040037196A1

公开(公告)日：2004-02-26

申请号：US10641072

申请日：2003-08-15

Applicant: OPTWARE CORPORATION ,  PENTAX CORPORATION

Inventor： Kozo Matsumoto ,  Hideyoshi Horimai ,  Wataru Kubo ,  Suguru Takishima

IPC: G11B007/00

CPC classification number: G11B7/0065 ,  G11B7/083

Abstract: To record information, a recording/reproducing optical system in an optical head irradiates a recording medium with information light and reference light for recording so that two-dimensional image information is recorded on the recording medium by means of interference between the information light and the reference light for recording. To reproduce information, the recording/reproducing optical system irradiates the recording medium with reference light for reproduction, and collects and detects reproduction light occurring from the recording medium. An optical information recording/reproducing apparatus comprises a tilt detector and an image deviation correction circuit. The tilt detector detects a tilt of the recording medium with respect to a predetermined reference position. Based on the output signal of the tilt detector, the image deviation correction circuit moves a lens which constitutes part of the optical system in the optical head, thereby correcting a displacement between a solid state image pick-up device in the optical head and the image of the reproduction light incident on the solid state image pick-up device.

Abstract translation: 为了记录信息，光头中的记录/再现光学系统用记录信息光和参考光照射具有记录信息的记录介质，从而通过信息光和参考信号之间的干扰将二维图像信息记录在记录介质上 光记录。 为了再现信息，记录/再现光学系统用记录介质照射用于再现的参考光，并且收集和检测从记录介质发生的再现光。 光信息记录/再现装置包括倾斜检测器和图像偏差校正电路。 倾斜检测器检测记录介质相对于预定基准位置的倾斜。 基于倾斜检测器的输出信号，图像偏差校正电路使构成光学头部的光学系统的一部分的透镜移动，从而校正光头中的固体摄像装置与图像之间的位移 的入射到固态图像拾取装置上的再现光。

公开(公告)号：US20040042383A1

公开(公告)日：2004-03-04

申请号：US10648395

申请日：2003-08-27

Applicant: PENTAX Corporation

Inventor： Suguru Takishima

IPC: G11B023/03

CPC classification number: G11B17/043 ,  G11B23/0308

Abstract: There is provided an optical recording media cartridge, which is provided with a case that accommodates the optical recording media and that has an opening, and a shutter that is attached to the case and that is movable between a first position at which the shutter covers the opening and a second position. The optical recording media cartridge is further provided with a shutter lock mechanism that locks the shutter while the shutter is positioned at the first position, and a shutter release mechanism that releases the shutter locked by the shutter lock mechanism by utilizing a magnetic force exerted thereon.

Abstract translation: 提供了一种光学记录介质盒，其设置有容纳光学记录介质并且具有开口的壳体和安装到壳体上并且可在挡板盖住的第一位置之间移动的挡板 开场和第二职位。 光记录介质盒还设置有快门锁定机构，其在快门位于第一位置时锁定快门;以及快门释放机构，其通过利用施加在其上的磁力来释放由快门锁定机构锁定的快门。