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1. 发明公开

EP1437719A3 Optical pickup device, recording and reproducing apparatus and method for detecting near-field gap 审中-公开
标题翻译：一种光学拾取装置，用于检测Nahfeldspalts的记录/再现设备和方法
公开(公告)号：EP1437719A3
公开(公告)日：2007-03-07
申请号：EP03026253.9
申请日：2003-11-14
申请人： SONY CORPORATION
发明人： Saito, Kimihiro c/o Sony Corporation , Ishimoto, Tsutomu c/o Sony Corporation
IPC分类号： G11B7/135
CPC分类号： G11B7/1353 , G02B27/283 , G11B7/09 , G11B7/1356 , G11B7/1381 , G11B7/1387 , G11B11/10532 , G11B11/10576 , G11B2007/13727
摘要： An optical pickup device and an optical recording and reproducing apparatus are suitable for use with a near-field optical recording and reproducing system. An optical pickup device comprises an obj ective lens composed of a solid immersion lens (SIL), the objective lens having a numerical aperture greater than 1, a beam splitter 102 for reflecting both of ap-polarized light component and an s-polarized light component of reflected lights from an optical recording medium when the optical pickup device irradiates the optical recording medium with a bundle of rays in a predetermined polarized state from a light source through the objective lens to detect a component in the polarized state perpendicular to the polarized state of reflected light obtained when a distance between the surface of this optical recording medium and the flat surface portion of the solid immersion lens (SIL) is zero to produce a signal corresponding to the distance between the surface of the optical recording medium and the flat surface portion of the solid immersion lens, a dividing means 110 for dividing incident light into a p-polarized light component and an s-polarized light component reflected by the beam splitter 102 and a photo-detecting means 120 for separately detecting the p-polarized light component and the s-polarized light component divided by the dividing means 110.

2. 发明授权

EP1724771B1 Optical recording and reproducing apparatus, optical head, optical recording and reproducing method and skew detection method 有权
标题翻译：设备，用于光学记录和再现光学头用于偏斜检测光记录和再现方法和过程
公开(公告)号：EP1724771B1
公开(公告)日：2008-12-24
申请号：EP06113783.2
申请日：2006-05-10
申请人： Sony Corporation
发明人： Saito, Kimihiro c/o Sony Corporation , Ishimoto, Tsutomu c/o Sony Corporation
IPC分类号： G11B7/135 , G11B7/095
CPC分类号： G11B7/0956 , G11B7/0908 , G11B7/121 , G11B7/1353 , G11B7/1387

3. 发明公开

EP1724771A1 Optical recording and reproducing apparatus, optical head, optical recording and reproducing method and skew detection method 有权
标题翻译：设备，用于光学记录和再现光学头用于偏斜检测光记录和再现方法和过程
公开(公告)号：EP1724771A1
公开(公告)日：2006-11-22
申请号：EP06113783.2
申请日：2006-05-10
申请人： SONY CORPORATION
发明人： Saito, Kimihiro c/o Sony Corporation , Ishimoto, Tsutomu c/o Sony Corporation
IPC分类号： G11B7/135 , G11B7/095
CPC分类号： G11B7/0956 , G11B7/0908 , G11B7/121 , G11B7/1353 , G11B7/1387
摘要： An optical recording and reproducing apparatus for recording and/or reproducing an optical recording medium (10) by irradiating light from a light source (20) to the optical recording medium (10) as near-field light from a near-field light irradiating unit (26) includes a light source (20) for emitting light, a first light-receiving unit (27) for receiving and detecting returned light from the optical recording medium (10), a second light-receiving unit (28) for receiving and detecting returned light from the near-field light irradiating unit (26), a control unit (29) for detecting a relative skew between the optical recording medium (10) and the near-field light irradiating unit (26) based on a plurality of gap detection signals generated from divided detection signals of the second light-receiving unit (28) and a drive control unit (30) for outputting a drive signal to correct a skew of at least the near-field light irradiating unit (26) to a drive unit in response to a skew detected in the control unit (29).
摘要翻译：通过从近场光照射单元，其从光源（20）的光学记录介质（10），近场光照射光的光学记录和用于记录和/或光记录介质（10）的再生再生装置（26）包括：光源（20），用于接收和检测发射光;第一光接收单元（27）从光学记录介质（10），第二光接收单元（28）返回的光，用于接收和从近场光照射单元（26），一个控制单元（29），用于基于对一个多元化检测光记录介质（10）和近场光照射单元（26）之间的相对倾斜检测返回光从第二光接收单元（28）和驱动控制部（30），用于输出铃声的驱动信号的分割检测信号产生的间隙的检测信号来纠正至少近场光照射单元（26）的所涉及的歪斜响应驱动单元检测到的歪斜在控制单元（29）。

4. 发明公开

EP1437719A2 Optical pickup device, recording and reproducing apparatus and method for detecting near-field gap 审中-公开
标题翻译：一种光学拾取装置，用于检测Nahfeldspalts的记录/再现设备和方法
公开(公告)号：EP1437719A2
公开(公告)日：2004-07-14
申请号：EP03026253.9
申请日：2003-11-14
申请人： SONY CORPORATION
发明人： Saito, Kimihiro c/o Sony Corporation , Ishimoto, Tsutomu c/o Sony Corporation
IPC分类号： G11B7/135
CPC分类号： G11B7/1353 , G02B27/283 , G11B7/09 , G11B7/1356 , G11B7/1381 , G11B7/1387 , G11B11/10532 , G11B11/10576 , G11B2007/13727
摘要： An optical pickup device and an optical recording and reproducing apparatus are suitable for use with a near-field optical recording and reproducing system. An optical pickup device comprises an obj ective lens composed of a solid immersion lens (SIL), the objective lens having a numerical aperture greater than 1, a beam splitter 102 for reflecting both of ap-polarized light component and an s-polarized light component of reflected lights from an optical recording medium when the optical pickup device irradiates the optical recording medium with a bundle of rays in a predetermined polarized state from a light source through the objective lens to detect a component in the polarized state perpendicular to the polarized state of reflected light obtained when a distance between the surface of this optical recording medium and the flat surface portion of the solid immersion lens (SIL) is zero to produce a signal corresponding to the distance between the surface of the optical recording medium and the flat surface portion of the solid immersion lens, a dividing means 110 for dividing incident light into a p-polarized light component and an s-polarized light component reflected by the beam splitter 102 and a photo-detecting means 120 for separately detecting the p-polarized light component and the s-polarized light component divided by the dividing means 110.
摘要翻译：分束器（102）分割在光中的P和S偏振分量的反射从光盘到（90）。甲渥拉斯顿棱镜（110）分离的偏振分量和一个检测器（120）独立地检测所分离的成分。因此独立权利要求中包括了以下内容：（1）盘驱动器; 和（2）的间隙检测方法。

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