公开(公告)号：JP2009238284A

公开(公告)日：2009-10-15

申请号：JP2008081456

申请日：2008-03-26

Applicant: Sony Corp ,  ソニー株式会社

Inventor： UEDA DAISUKE

IPC: G11B7/09 ,  G11B7/135

CPC classification number: G11B7/0908 ,  G11B7/00781 ,  G11B7/083 ,  G11B7/0938 ,  G11B7/1275

Abstract: PROBLEM TO BE SOLVED: To provide a focus servo method for detecting a stable signal, an optical reproducing method and optical reproducing device. SOLUTION: Since although an eccentric center position P apart a predetermined distance x from a center O of an objective lens 7 is irradiated with a focus servo laser beam L2, an optical spot size z which is a size of an optical spot S in a thickness direction (Z direction) changes according to this predetermined distance x, a stable focus servo signal is detected by photodetector 21 by: irradiating a position of predetermined distance x from the center O with the focus servo laser beam L2 so that a void H of a recording medium 20 is certainly irradiated with an optical spot S of the focus servo laser beam L2; making the reproduction light certainly reflected by a void H; detecting this reproduction light by a photodetector 21; and controlling a position of the objective lens 7 based on detected reproduction light Ls by the objective lens actuator 9. COPYRIGHT: (C)2010,JPO&INPIT

Abstract translation: 要解决的问题：提供一种用于检测稳定信号的聚焦伺服方法，光学再现方法和光学再现装置。 解决方案：由于尽管用聚焦伺服激光束L2照射距离物镜7的中心O预定距离x的偏心中心位置P，但是作为光点S的尺寸的光点尺寸z 在厚度方向（Z方向）上根据该预定距离x变化，由光检测器21检测稳定的聚焦伺服信号，方法是：利用聚焦伺服激光束L2照射距离中心O的预定距离x的位置， 记录介质20的H被照射到聚焦伺服激光束L2的光点S; 使再现光肯定地被空隙H反射; 通过光电检测器21检测该再现光; 并且通过物镜驱动器9基于检测到的再现光Ls来控制物镜7的位置。版权所有（C）2010，JPO＆INPIT

公开(公告)号：JP2009238282A

公开(公告)日：2009-10-15

申请号：JP2008081323

申请日：2008-03-26

Applicant: Sony Corp ,  ソニー株式会社

Inventor： UEDA DAISUKE ,  IWAMURA TAKASHI

IPC: G11B7/0045 ,  G11B7/125 ,  G11B7/135

CPC classification number: G11B7/00451 ,  G11B7/127 ,  G11B2007/0009

Abstract: PROBLEM TO BE SOLVED: To provide an optical recording method and optical recording apparatus which form a recording mark in a medium with low optical power. SOLUTION: A minimum area g of a recording medium 10 is made an excitation state (or transitional state) wherein light absorption tends to occur by photo-reaction with a pulse of an ultrashort pulse laser light of low power that is the power of 1 kW. Heat reaction is caused in the recording medium 10 by irradiating with a CW (continuous wave) laser light during this excitation state (or transitional status) (for example, time of day t1-t2 in a Fig. 2), and a recording mark G (for example, void) of the desired length L1 in the length of an inside direction X of a recording surface of the recording medium 10 and the desired length L2 in the length of a thickness direction Z of the recording medium 10 is formed by low optical power. COPYRIGHT: (C)2010,JPO&INPIT

Abstract translation: 要解决的问题：提供一种在具有低光功率的介质中形成记录标记的光学记录方法和光学记录装置。 解决方案：记录介质10的最小面积g被制成激发状态（或过渡状态），其中通过与作为功率的低功率的超短脉冲激光的脉冲进行光反应而容易发生光吸收 1 kW。 在该激发状态（或过渡状态）（例如，图2中的t1-t2的时刻），通过照射CW（连续波）激光，在记录介质10中产生热反应， 在记录介质10的记录表面的内部方向X的长度上的期望长度L1和记录介质10的厚度方向Z的长度上的期望长度L2的G（例如，空隙）由 光功率低。 版权所有（C）2010，JPO＆INPIT

公开(公告)号：JP2009266285A

公开(公告)日：2009-11-12

申请号：JP2008113064

申请日：2008-04-23

Applicant: Sony Corp ,  ソニー株式会社

Inventor： UEDA DAISUKE

IPC: G11B7/0045 ,  G11B7/007 ,  G11B7/09 ,  G11B7/135 ,  G11B7/24

CPC classification number: G11B7/0938 ,  G11B7/00452 ,  G11B7/00456 ,  G11B7/00736 ,  G11B7/123 ,  G11B7/1275 ,  G11B7/24088 ,  G11B2007/0009

Abstract: PROBLEM TO BE SOLVED: To provide an optical information recording device and an optical information recording method capable of recording sub-data. SOLUTION: An optical disk device 20 forms a recording mark RM along a virtual irradiation line TL on an optical disk 100 by controlling a laser diode 51, which is the light source, according to recorded primary data information Da based on primary data. Then, the optical disk device 20 forms the center of the recording mark RM displaced from the irradiation line TL in the focal direction by shifting the target depth in the focal direction according to recorded sub-data information Db based on sub-data. COPYRIGHT: (C)2010,JPO&INPIT

Abstract translation: 解决的问题：提供能够记录子数据的光信息记录装置和光信息记录方法。 解决方案：光盘装置20根据记录的主数据信息Da基于主数据来控制作为光源的激光二极管51，沿着光盘100上的虚拟照射线TL形成记录标记RM 。 然后，光盘装置20通过根据记录的子数据信息Db基于子数据移动沿着焦点方向的目标深度而形成从照射线TL在焦点方向上移位的记录标记RM的中心。 版权所有（C）2010，JPO＆INPIT

公开(公告)号：JP2005203044A

公开(公告)日：2005-07-28

申请号：JP2004009639

申请日：2004-01-16

Applicant: Sony Corp ,  ソニー株式会社

Inventor： UEDA DAISUKE ,  YAMAZAKI TAKESHI

IPC: G11B7/26

Abstract: PROBLEM TO BE SOLVED: To easily perform uniform geometry transfer across whole area of a face to be transferred to the substrate to be transferred which has a heap at a periphery of the face to be transferred.
SOLUTION: An intermediate layer 112 whose geometry can be transferred on a face to be transferred in one side of an optical disk substrate 110 is established and a signal recording face is formed by pressing a transfer geometry surface of a substrate 120 for transfer against the intermediate layer 112. When the geometry transfer is performed, the substrate 120 for transfer having a transfer geometry surface of a diameter of larger than the optical disk substrate 110 is used, and the geometry transfer is performed by pressing the whole one side of the optical disk substrate 110 against the intermediate layer 112 in the status that transfer geometry face of the substrate 120 for transfer is surrounded. Therefore, stable geometry transfer can be performed without the optical disk substrate and the raised periphery of the substrate for transfer being caught each other.
COPYRIGHT: (C)2005,JPO&NCIPI

Abstract translation: 要解决的问题：为了容易地在待传送的基板的整个面积上容易地进行均匀的几何形状转移，所述基底将被转印的基底，所述基底在待转印的面的周边具有堆。 解决方案：建立其几何形状可以在要在光盘基板110的一侧被转印的面上转印的中间层112，并且通过按压用于转印的基板120的转印几何表面形成信号记录面 当进行几何转移时，使用具有直径大于光盘基板110的转印几何表面的用于转印的基板120，并且通过将整个一面 包围转印用基板120的几何面的状态下的中间层112的光盘基板110被包围。 因此，可以进行稳定的几何转移，而不需要光盘基板，并且用于转印的基板的凸起周边被彼此卡住。 版权所有（C）2005，JPO＆NCIPI

公开(公告)号：JP2005202993A

公开(公告)日：2005-07-28

申请号：JP2004005166

申请日：2004-01-13

Applicant: Sony Corp ,  ソニー株式会社

Inventor： UEDA DAISUKE ,  NAKANO ATSUSHI

IPC: G11B7/24 ,  G11B7/0045 ,  G11B7/007

Abstract: PROBLEM TO BE SOLVED: To realize an optical disk having a system margin to suitable inclination for a camcorder, etc. SOLUTION: An optical disk which has a large system margin to inclination, a small warp due to an environmental change, and good mechanical characteristic in a molding substrate is realized by making an optical disk shape having thickness of a protective layer to 100 μm to 30 μm, thickness of a substrate not less than 0.4 mm and not more than 0.8 mm, and a diameter of not more than 55 mm. In the case of a multilayer disk, although distance from laser beam incident side (protective layer side) will become larger after the second information recording and reproducing layer, the system margin is enlarged by widening a track pitch, or lengthening the minimum mark length after the second layer. COPYRIGHT: (C)2005,JPO&NCIPI

Abstract translation: 解决方案：实现具有适合摄像机倾斜度的系统余量的光盘等。解决方案：具有较大系统边缘倾斜的光盘，由于环境而产生小的翘曲 通过使保护层的厚度为100μm〜30μm的光盘形状，基板的厚度为0.4mm以上且0.8mm以下的直径来实现成型基板的变化和良好的机械特性， 不超过55毫米。 在多层盘的情况下，虽然在第二信息记录再现层之后距离激光束入射侧（保护层侧）的距离变大，但是通过加宽轨道间距或者延长最小标记长度后，系统裕量将被扩大 第二层。 版权所有（C）2005，JPO＆NCIPI

公开(公告)号：JP2004145984A

公开(公告)日：2004-05-20

申请号：JP2002310194

申请日：2002-10-24

Applicant: Sony Corp ,  ソニー株式会社

Inventor： UEDA DAISUKE ,  YAMAZAKI TAKESHI ,  AKIYAMA SHOJI

IPC: G11B7/26

Abstract: PROBLEM TO BE SOLVED: To obtain a multi-layer optical disk in which a tracking error caused by eccentricity between multi-layer information recording layers can be improved, and recording and reproducing can be performed surely even in, so to speak, a next generation multi-layer optical disk of high density. SOLUTION: In a forming process of an irregular pattern constituting an information part for an intermediate layer 51, a disk substrate 1 on which optical information recording layers having center holes 41, 42 whose inner diameter is different each other are laminated and a transfer substrate 3 having a transfer irregular pattern is provided, and position setting of these substrates is performed. In this position setting, the disk substrate 1 and the transfer substrate 3 are inserted on a center pin 5 having a cone shape tapered part 5T in the order of the substrates having larger inner diameter center hole and the substrate having smaller diameter center hole holding the intermediate layer between them and opposing them, the center pin 5 is shifted along the shaft center direction, one side of the substrate having large inner diameter center hole is abutted to a substrate placing mount 6 at the middle of shifting, the other side of the substrate is pressed, the irregular pattern for the intermediate layer is formed, and eccentricity of the laminated information recording layer is reduced. COPYRIGHT: (C)2004,JPO