公开(公告)号：EP1195754A3

公开(公告)日：2007-06-27

申请号：EP01123898.7

申请日：2001-10-05

申请人： SONY CORPORATION

发明人： Kikuchi, Minoru ,  Nakano, Jun

IPC分类号： G11B7/24 ,  G11B7/26

CPC分类号： G11B7/26 ,  B29C65/1406 ,  B29C65/1435 ,  B29C65/1483 ,  B29C65/4815 ,  B29C65/4825 ,  B29C65/483 ,  B29C65/484 ,  B29C65/4845 ,  B29C65/521 ,  B29C66/452 ,  B29L2017/005 ,  G11B7/24 ,  G11B11/10582

摘要： There is provided an optical recording medium, in which a light transmitting layer is formed on a disc substrate, having less deflection and being excellent in recording/reproducing properties. In an optical disc, an information signal area on which an information signal can be recorded and/or reproduced is formed on a major surface of a disc substrate thereof; a light transmitting layer which can transmit a laser beam used in a process for recording and/or reproducing the information signal is formed on a side on which the information signal area is present: and a clamp reference plane is arranged on a major surface of the light transmitting layer in a clamp region. If the optical disc is clamped by a chucking unit of a drive, it is clamped by making the clamp reference plane on the major surface of the light transmitting layer contact with a mounting surface of a table for mounting the disc, and making a magnetic metal plate contact with the major surface of the disc substrate, and then sandwiching the optical disc between.

公开(公告)号：EP1195754A2

公开(公告)日：2002-04-10

申请号：EP01123898.7

申请日：2001-10-05

申请人： SONY CORPORATION

发明人： Kikuchi, Minoru ,  Nakano, Jun

IPC分类号： G11B7/24 ,  G11B7/26

CPC分类号： G11B7/26 ,  B29C65/1406 ,  B29C65/1435 ,  B29C65/1483 ,  B29C65/4815 ,  B29C65/4825 ,  B29C65/483 ,  B29C65/484 ,  B29C65/4845 ,  B29C65/521 ,  B29C66/452 ,  B29L2017/005 ,  G11B7/24 ,  G11B11/10582

摘要： There is provided an optical recording medium, in which a light transmitting layer is formed on a disc substrate, having less deflection and being excellent in recording/reproducing properties. In an optical disc, an information signal area on which an information signal can be recorded and/or reproduced is formed on a major surface of a disc substrate thereof; a light transmitting layer which can transmit a laser beam used in a process for recording and/or reproducing the information signal is formed on a side on which the information signal area is present: and a clamp reference plane is arranged on a major surface of the light transmitting layer in a clamp region. If the optical disc is clamped by a chucking unit of a drive, it is clamped by making the clamp reference plane on the major surface of the light transmitting layer contact with a mounting surface of a table for mounting the disc, and making a magnetic metal plate contact with the major surface of the disc substrate, and then sandwiching the optical disc between.

摘要翻译： 提供了一种光盘记录介质，其中光盘传输层形成在盘基片上，具有较小的偏转和良好的记录/再现性能。 在光盘中，其信息信号可以被记录和/或再现的信息信号区域形成在其盘基片的主表面上; 在信息信号区域存在的一侧形成能够发送用于记录和/或再现信息信号的处理中使用的激光束的透光层，并且夹具参考平面布置在 夹持区域中的透光层。 如果光盘被驱动器的夹紧单元夹紧，则通过使光透射层的主表面上的夹具参考平面与用于安装盘的台的安装表面相接触而被夹紧，并且制造磁性金属 板与盘基片的主表面接触，然后将光盘夹在其间。

公开(公告)号：EP1195754B1

公开(公告)日：2011-05-25

申请号：EP01123898.7

申请日：2001-10-05

申请人： Sony Corporation

发明人： Kikuchi, Minoru ,  Nakano, Jun

IPC分类号： G11B7/24 ,  G11B7/26

CPC分类号： G11B7/26 ,  B29C65/1406 ,  B29C65/1435 ,  B29C65/1483 ,  B29C65/4815 ,  B29C65/4825 ,  B29C65/483 ,  B29C65/484 ,  B29C65/4845 ,  B29C65/521 ,  B29C66/452 ,  B29L2017/005 ,  G11B7/24 ,  G11B11/10582

公开(公告)号：EP0898270A3

公开(公告)日：2000-02-23

申请号：EP98115288.7

申请日：1998-08-13

申请人： SONY CORPORATION

发明人： Kikuchi, Minoru ,  Akimoto, Yoshihiro ,  Takase, Fuminori ,  Kagawa, Masaki ,  Saito, Nubuhiro

IPC分类号： G11B7/007 ,  G11B7/09

CPC分类号： G11B7/24079 ,  G11B7/00454

摘要： The present invention provides a rewritable optical disc which is compatible with a DVD-ROM reproduction apparatus and employs the groove recording method. The optical disc has a recording layer having a land 10 and a groove 9 onto/from which an information signal is recorded and reproduced with a light of a predetermined wavelength, wherein if it is assumed that the groove has a bottom width W1 and an opening width W2, then a groove average width X [µm] can be expressed as follows:X = (W1 + W2) /2, and if the groove has a depth Y nm , then X and Y satisfy the following relationships:Y ≥ 4736X2 - 4764X + 1239X ≤ -0.000127Y2 + 0.018624Y - 0.075043X > 0.40.

公开(公告)号：EP0939400A1

公开(公告)日：1999-09-01

申请号：EP99103409.1

申请日：1999-02-22

申请人： SONY CORPORATION

发明人： Saito, Nobuhiro ,  Kikuchi, Minoru ,  Akimoto, Yoshihiro ,  Takase, Fuminori

IPC分类号： G11B7/24

CPC分类号： G11B7/243 ,  G11B7/00454 ,  G11B7/258 ,  G11B7/2585 ,  G11B2007/24312 ,  G11B2007/24314 ,  G11B2007/24316 ,  Y10S428/913 ,  Y10S430/146 ,  Y10T428/21 ,  Y10T428/31678

摘要： The present invention provides an optical disc capable of effectively reducing a reproduction signal jitter value and obtaining a wider record power margin assuring a reproduction limit jitter value to obtain a preferable recording/reproduction characteristic even after a number of times of recording repeated.
The optical disc includes the following films successively formed on a substrate 2: a first dielectric film 3; a phase change recording film 4 whose phase is changed between a crystalline state and an amorphous state thereby to recrod an information signal; a second dielectric film 5; and a light reflection film formed on the phase change recording film 4 and constituted by an Al alloy containing Cu in a range from 0.1 to 1.0 atomic %.

摘要翻译： 本发明提供了一种能够有效地降低再现信号抖动值并且获得更宽的记录功率余量的光盘，从而确保再现限制抖动值，以便即使在多次重复记录之后也获得优选的记录/再现特性。 光盘包括依次形成在基板2上的以下膜：第一电介质膜3; 相变记录膜4，其相位在结晶状态和非晶状态之间变化，从而重新产生信息信号; 第二电介质膜5; 以及形成在相变记录膜4上并由含有0.1至1.0原子％的Cu的Al合金构成的光反射膜。

公开(公告)号：EP0898270A2

公开(公告)日：1999-02-24

申请号：EP98115288.7

申请日：1998-08-13

申请人： SONY CORPORATION

发明人： Kikuchi, Minoru ,  Akimoto, Yoshihiro ,  Takase, Fuminori ,  Kagawa, Masaki ,  Saito, Nubohiro

IPC分类号： G11B7/007

CPC分类号： G11B7/24079 ,  G11B7/00454

摘要： The present invention provides a rewritable optical disc which is compatible with a DVD-ROM reproduction apparatus and employs the groove recording method. The optical disc has a recording layer having a land 10 and a groove 9 onto/from which an information signal is recorded and reproduced with a light of a predetermined wavelength, wherein if it is assumed that the groove has a bottom width W1 and an opening width W2, then a groove average width X [µm] can be expressed as follows: X = (W1 + W2) /2, and if the groove has a depth Y nm , then X and Y satisfy the following relationships: Y ≥ 4736X 2 - 4764X + 1239 X ≤ -0.000127Y 2 + 0.018624Y - 0.075043 X > 0.40.

摘要翻译： 本发明提供一种与DVD-ROM再现装置兼容的可重写光盘并采用凹槽记录方法。 光盘具有记录层，其上具有用预定波长的光记录和再现信息信号的槽脊10和槽9，其中如果假定槽具有底部宽度W1和开口 宽度W2，则沟槽平均宽度X um可以表示如下：