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1.发明授权公开(公告)号：US08279723B2
公开(公告)日：2012-10-02
申请号：US12541668
申请日：2009-08-14
IPC分类号： G11B7/00
CPC分类号： G11B7/24038 , B82Y10/00 , G11B7/00736 , G11B7/00745 , G11B7/0938 , G11B7/1378 , G11B2007/0013
摘要： A recording medium includes at least one recording layer on which information is recorded by multi-photon absorption, and a servo layer disposed in a laminated direction with respect to the recording layer and having a track for guiding a beam spot of laser light having a first wavelength and a beam spot of laser light having a second wavelength along a scanning trajectory. The servo layer and the at least one recording layer constitute a set of layers, and a plurality of sets of layers is formed in the laminated direction. The servo layer is made of a material having a high reflectance with respect to laser light having a third wavelength for generating a servo signal, and low reflectances with respect to the laser light having the first wavelength and the laser light having the second wavelength.
摘要翻译： 记录介质包括至少一个记录层，其上通过多光子吸收记录信息;以及伺服层，其相对于记录层设置在层叠方向上，并且具有用于引导具有第一 波长和沿着扫描轨迹具有第二波长的激光束。 伺服层和至少一个记录层构成一组层，并且在层叠方向上形成多组层。 伺服层由相对于具有第三波长的激光具有高反射率的材料制成，用于产生伺服信号，以及相对于具有第一波长的激光和具有第二波长的激光的低反射率。
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2.发明申请OPTICAL PICKUP APPARATUS, FOCAL-POINT ADJUSTING METHOD, AND OPTICAL DISC APPARATUS 失效光学拾取装置，光点调整方法和光盘装置公开(公告)号：US20100027405A1
公开(公告)日：2010-02-04
申请号：US12512440
申请日：2009-07-30
CPC分类号： G11B7/1353 , G11B7/08511 , G11B7/0909 , G11B7/0912 , G11B7/0943 , G11B7/0956 , G11B7/131 , G11B7/133 , G11B7/1381 , G11B7/13927 , G11B2007/0013
摘要： An optical pickup apparatus is provided with an angle adjusting element. The angle adjusting element changes a propagation direction of luminous fluxes of four luminous flux regions set about an optical axis of the laser light, out of laser light reflected by a disc, and mutually disperses the luminous fluxes. A signal light region in which signal light only is present appears on a detecting surface of a photodetector. A sensor pattern for signal light is placed at a position irradiated with the signal light within this region. A sensor pattern for a spherical aberration detection is placed on an inner side of this region.
摘要翻译： 光拾取装置具有角度调节元件。 由光盘反射的激光，角度调整元件使围绕激光的光轴设置的四个光通量区域的光束的传播方向变化，并相互分散光束。 仅在光检测器的检测表面上出现仅存在信号光的信号光区域。 用于信号光的传感器图案被放置在用该区域内的信号光照射的位置。 用于球面像差检测的传感器图案被放置在该区域的内侧。
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公开(公告)号：US20090303849A1
公开(公告)日：2009-12-10
申请号：US12541685
申请日：2009-08-14
CPC分类号： G11B7/0938 , B82Y10/00 , G11B7/1263 , G11B2007/0013
摘要： An optical pickup device includes: a first light source for emitting recording laser light; a second light source for emitting reproducing laser light having a wavelength different from a wavelength of the recording laser light; an objective lens for converging the recording laser light and the reproducing laser light. A quarter wavelength plate is disposed between the first light source and the second light source, and the objective lens. A wavelength-selective polarized beam splitter is disposed between the quarter wavelength plate, and the first light source and the second light source. The reproducing laser light alone out of the recording laser light and the reproducing laser light reflected on recording medium is guided to a photodetector.
摘要翻译： 一种光学拾取装置，包括：用于发射记录激光的第一光源; 用于发射具有与记录激光的波长不同的波长的再现激光的第二光源; 用于会聚记录激光和再现激光的物镜。 四分之一波长板设置在第一光源和第二光源之间以及物镜之间。 波长选择性偏振分束器设置在四分之一波长板与第一光源和第二光源之间。 记录激光的单独再现激光和在记录介质上反射的再现激光被引导到光电检测器。
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公开(公告)号：US08270280B2
公开(公告)日：2012-09-18
申请号：US12890777
申请日：2010-09-27
IPC分类号： G11B7/135
CPC分类号： G11B7/1353 , G11B7/0909 , G11B7/1275 , G11B7/131 , G11B7/133 , G11B7/1378
摘要： An optical pickup device is provided with a spectral element which imparts diffraction in such a manner that four light fluxes of the first laser light are separated from each other, when a light flux of the first laser light and a light flux of the second laser light reflected on a recording medium having laminated recording layers and servo layers are divided into four by a first straight line in parallel to a converging direction by an astigmatism element, and a second straight line perpendicular to the first straight line, and that the four light fluxes of the first laser light propagate on an outer side than the light flux of the second laser light; and a photodetector including a first sensor group which receives the first laser light, and a second sensor group which receives the second laser light.
摘要翻译： 光拾取装置具有光谱元件，该光谱元件以第一激光的四个光束彼此分离的方式赋予衍射，当第一激光的光束和第二激光的光束 在具有层叠记录层和伺服层的记录介质上反射的第一直线与通过像散元件的会聚方向平行的第一直线和垂直于第一直线的第二直线分成四个，并且四个光束 所述第一激光在比所述第二激光的光束的外侧传播; 以及光电检测器，其包括接收第一激光的第一传感器组和接收第二激光的第二传感器组。
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公开(公告)号：US08238215B2
公开(公告)日：2012-08-07
申请号：US12541648
申请日：2009-08-14
IPC分类号： G11B7/20
CPC分类号： G11B7/1275 , B82Y10/00 , G11B7/00745 , G11B7/0938 , G11B7/24038
摘要： A recording medium includes: at least one recording layer on which information is recorded by multi-photon absorption; and a servo layer disposed in a laminated direction with respect to the recording layer and having a track for guiding a beam spot of laser light having a first wavelength and a beam spot of laser light having a second wavelength along a scanning trajectory, wherein the servo layer and the at least one recording layer constitute a set of layers, and a plurality of sets of layers is formed in the laminated direction.
摘要翻译： 记录介质包括：通过多光子吸收在其上记录信息的至少一个记录层; 以及伺服层，其相对于所述记录层设置在层叠方向上，并且具有用于沿着扫描轨迹引导具有第一波长的激光束和具有第二波长的激光束的光束的轨道，其中所述伺服 层，并且所述至少一个记录层构成一组层，并且在层叠方向上形成多组层。
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6.发明申请公开(公告)号：US20090316537A1
公开(公告)日：2009-12-24
申请号：US12541668
申请日：2009-08-14
CPC分类号： G11B7/24038 , B82Y10/00 , G11B7/00736 , G11B7/00745 , G11B7/0938 , G11B7/1378 , G11B2007/0013
摘要： A recording medium includes at least one recording layer on which information is recorded by multi-photon absorption, and a servo layer disposed in a laminated direction with respect to the recording layer and having a track for guiding a beam spot of laser light having a first wavelength and a beam spot of laser light having a second wavelength along a scanning trajectory. The servo layer and the at least one recording layer constitute a set of layers, and a plurality of sets of layers is formed in the laminated direction. The servo layer is made of a material having a high reflectance with respect to laser light having a third wavelength for generating a servo signal, and low reflectances with respect to the laser light having the first wavelength and the laser light having the second wavelength.
摘要翻译： 记录介质包括至少一个记录层，其上通过多光子吸收记录信息;以及伺服层，其相对于记录层设置在层叠方向上，并且具有用于引导具有第一 波长和沿着扫描轨迹具有第二波长的激光束。 伺服层和至少一个记录层构成一组层，并且在层叠方向上形成多组层。 伺服层由相对于具有第三波长的激光具有高反射率的材料制成，用于产生伺服信号，以及相对于具有第一波长的激光和具有第二波长的激光的低反射率。
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公开(公告)号：US07969853B2
公开(公告)日：2011-06-28
申请号：US12541626
申请日：2009-08-14
IPC分类号： G11B7/00
CPC分类号： G11B7/24038 , B82Y10/00 , G11B7/00745 , G11B7/08511 , G11B7/0938 , G11B7/1378 , G11B2007/0013
摘要： A servo objective lens and a recording/reproducing objective lens are commonly held on a holder. The servo objective lens and the recording/reproducing objective lens are integrally displaced, thereby pulling servo light onto a servo layer. Upon the pulling, focus positions of recording light and reproducing light follow a focus position of the servo light. As a result, the focus positions of recording light and reproducing light are set close to the servo layer. Thereafter, an optical element for displacing the focus positions of recording light and reproducing light in the optical axis direction is driven to pull the recording light and the reproducing light onto a targeted recording layer.
摘要翻译： 伺服物镜和记录/再现物镜通常保持在保持器上。 伺服物镜和记录/再现物镜一体地移位，从而将伺服光拉到伺服层上。 在拉动时，记录光和再现光的对焦位置跟随伺服光的对焦位置。 结果，将记录光和再现光的聚焦位置设置为接近伺服层。 此后，驱动用于移动记录光的聚焦位置并在光轴方向再现光的光学元件，以将记录光和再现光拉到目标记录层上。
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公开(公告)号：US08238221B2
公开(公告)日：2012-08-07
申请号：US12541685
申请日：2009-08-14
IPC分类号： G11B7/00
CPC分类号： G11B7/0938 , B82Y10/00 , G11B7/1263 , G11B2007/0013
摘要： An optical pickup device includes: a first light source for emitting recording laser light; a second light source for emitting reproducing laser light having a wavelength different from a wavelength of the recording laser light; an objective lens for converging the recording laser light and the reproducing laser light. A quarter wavelength plate is disposed between the first light source and the second light source, and the objective lens. A wavelength-selective polarized beam splitter is disposed between the quarter wavelength plate, and the first light source and the second light source. The reproducing laser light alone out of the recording laser light and the reproducing laser light reflected on recording medium is guided to a photodetector.
摘要翻译： 一种光学拾取装置，包括：用于发射记录激光的第一光源; 用于发射具有与记录激光的波长不同的波长的再现激光的第二光源; 用于会聚记录激光和再现激光的物镜。 四分之一波长板设置在第一光源和第二光源之间以及物镜之间。 波长选择性偏振分束器设置在四分之一波长板与第一光源和第二光源之间。 记录激光的单独再现激光和在记录介质上反射的再现激光被引导到光电检测器。
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9.发明授权Optical pickup apparatus, focal-point adjusting method, and optical disc apparatus 失效光拾取装置，焦点调整方法和光盘装置公开(公告)号：US07990835B2
公开(公告)日：2011-08-02
申请号：US12512440
申请日：2009-07-30
IPC分类号： G11B7/00
CPC分类号： G11B7/1353 , G11B7/08511 , G11B7/0909 , G11B7/0912 , G11B7/0943 , G11B7/0956 , G11B7/131 , G11B7/133 , G11B7/1381 , G11B7/13927 , G11B2007/0013
摘要： An optical pickup apparatus is provided with an angle adjusting element. The angle adjusting element changes a propagation direction of luminous fluxes of four luminous flux regions set about an optical axis of the laser light, out of laser light reflected by a disc, and mutually disperses the luminous fluxes. A signal light region in which signal light only is present appears on a detecting surface of a photodetector. A sensor pattern for signal light is placed at a position irradiated with the signal light within this region. A sensor pattern for a spherical aberration detection is placed on an inner side of this region.
摘要翻译： 光拾取装置具有角度调节元件。 由光盘反射的激光，角度调整元件使围绕激光的光轴设置的四个光通量区域的光束的传播方向变化，并相互分散光束。 仅在光检测器的检测表面上出现仅存在信号光的信号光区域。 用于信号光的传感器图案被放置在用该区域内的信号光照射的位置。 用于球面像差检测的传感器图案被放置在该区域的内侧。
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公开(公告)号：US20110075545A1
公开(公告)日：2011-03-31
申请号：US12890777
申请日：2010-09-27
IPC分类号： G11B7/135
CPC分类号： G11B7/1353 , G11B7/0909 , G11B7/1275 , G11B7/131 , G11B7/133 , G11B7/1378
摘要： An optical pickup device is provided with a spectral element which imparts diffraction in such a manner that four light fluxes of the first laser light are separated from each other, when a light flux of the first laser light and a light flux of the second laser light reflected on a recording medium having laminated recording layers and servo layers are divided into four by a first straight line in parallel to a converging direction by an astigmatism element, and a second straight line perpendicular to the first straight line, and that the four light fluxes of the first laser light propagate on an outer side than the light flux of the second laser light; and a photodetector including a first sensor group which receives the first laser light, and a second sensor group which receives the second laser light.
摘要翻译： 光拾取装置具有光谱元件，该光谱元件以第一激光的四个光束彼此分离的方式赋予衍射，当第一激光的光束和第二激光的光束 在具有层叠记录层和伺服层的记录介质上反射的第一直线与通过像散元件的会聚方向平行的第一直线和垂直于第一直线的第二直线分成四个，并且四个光束 所述第一激光在比所述第二激光的光束的外侧传播; 以及光电检测器，其包括接收第一激光的第一传感器组和接收第二激光的第二传感器组。
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