公开(公告)号：US20150131423A1

公开(公告)日：2015-05-14

申请号：US14525567

申请日：2014-10-28

Applicant: Sony Computer Entertainment Inc.

Inventor： Naoyuki Nishigata

IPC: G11B7/1392

CPC classification number: G11B7/13927 ,  G11B7/0925 ,  G11B7/094 ,  G11B7/0941 ,  G11B7/0945 ,  G11B7/0948 ,  G11B7/1376 ,  G11B7/1392 ,  G11B7/13925 ,  G11B2007/0006

Abstract: An optical disc device that reads information recorded in an optical disc medium includes an objective lens that focuses light on the optical disc medium, a spherical aberration correction mechanism that changes an amount of spherical aberration of the objective lens according to a setting value of a predetermined parameter, and an evaluation value measurement section that measures an evaluation value indicating the accuracy of reading of information from the optical disc medium. The optical disc device further includes a control section that executes adjustment processing in which the control section carries out plural times of measurement of the evaluation value by the evaluation value measurement section concurrently with changing the amount of spherical aberration of the objective lens by the spherical aberration correction mechanism and calculates an optimum setting value of the parameter based on plural evaluation values obtained by the plural times of measurement.

Abstract translation: 读取记录在光盘介质中的信息的光盘装置包括：将光聚焦到光盘介质上的物镜;球面像差校正机构，用于根据预定的光盘介质的设定值改变物镜的球面像差量; 参数和评估值测量部分，其测量指示从光盘介质读取信息的准确度的评估值。 光盘装置还包括执行调整处理的控制部分，其中控制部分通过评估值测量部分同时进行多次测量评估值，同时改变物镜的球面像差量的球面像差 校正机构，并且基于通过多次测量获得的多个评估值来计算参数的最佳设定值。

公开(公告)号：US09245571B2

公开(公告)日：2016-01-26

申请号：US14525567

申请日：2014-10-28

Applicant: Sony Computer Entertainment Inc.

Inventor： Naoyuki Nishigata

IPC: G11B7/00 ,  G11B7/085 ,  G11B7/0045 ,  G11B7/1392 ,  G11B7/09

CPC classification number: G11B7/13927 ,  G11B7/0925 ,  G11B7/094 ,  G11B7/0941 ,  G11B7/0945 ,  G11B7/0948 ,  G11B7/1376 ,  G11B7/1392 ,  G11B7/13925 ,  G11B2007/0006

Abstract: An optical disc device that reads information recorded in an optical disc medium includes an objective lens that focuses light on the optical disc medium, a spherical aberration correction mechanism that changes an amount of spherical aberration of the objective lens according to a setting value of a predetermined parameter, and an evaluation value measurement section that measures an evaluation value indicating the accuracy of reading of information from the optical disc medium. The optical disc device further includes a control section that executes adjustment processing in which the control section carries out plural times of measurement of the evaluation value by the evaluation value measurement section concurrently with changing the amount of spherical aberration of the objective lens by the spherical aberration correction mechanism and calculates an optimum setting value of the parameter based on plural evaluation values obtained by the plural times of measurement.

Abstract translation: 读取记录在光盘介质中的信息的光盘装置包括：将光聚焦到光盘介质上的物镜;球面像差校正机构，用于根据预定的光盘介质的设定值改变物镜的球面像差量; 参数和评估值测量部分，其测量指示从光盘介质读取信息的准确度的评估值。 光盘装置还包括执行调整处理的控制部分，其中控制部分通过评估值测量部分同时进行多次测量评估值，同时改变物镜的球面像差量的球面像差 校正机构，并且基于通过多次测量获得的多个评估值来计算参数的最佳设定值。