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公开(公告)号：US20080089209A1
公开(公告)日：2008-04-17
申请号：US11973667
申请日：2007-10-09
申请人： Hirotaka Miyamoto , Kimihiro Saito
发明人： Hirotaka Miyamoto , Kimihiro Saito
IPC分类号： G11B7/135
CPC分类号： G11B7/083 , G11B7/0065 , G11B7/00781 , G11B7/0901 , G11B7/0909 , G11B7/0917 , G11B7/24 , G11B7/24044
摘要： An optical disc apparatus and a focus position control method can highly accurately record recording marks representing information on or reproduce such recording marks from an optical disc. A blue light beam is irradiated onto the target depth to be irradiated by driving an objective lens to focus a red light beam in a reflection/transmission film formed in the optical disc and displacing a movable lens, which is a focus moving section, of a relay lens. A blue light reflection region is formed as part of the reflection/transmission film and the position of the blue light reflection region where the red light focus and the blue light focus are aligned is defined as reference position. The movable lens is displaced by an arbitrarily selected quantity from the reference position according to the target depth.
摘要翻译： 光盘装置和聚焦位置控制方法可以高度准确地记录表示来自光盘的信息或再现这种记录标记的记录标记。 通过驱动物镜将蓝色光束照射到要照射的目标深度上，以将红色光束聚焦在形成在光盘中的反射/透射膜中，并将作为焦点移动部分的可移动透镜移位， 中继镜头 形成作为反射/透射膜的一部分的蓝色光反射区域，并且将红色光焦点和蓝色光焦点对准的蓝色光反射区域的位置定义为基准位置。 可移动透镜根据目标深度从参考位置移动任意选择的数量。
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公开(公告)号：US06084843A
公开(公告)日：2000-07-04
申请号：US39479
申请日：1998-03-16
申请人： Tsuguhiro Abe , Junichi Suzuki , Satoshi Hineno , Kimihiro Saito
发明人： Tsuguhiro Abe , Junichi Suzuki , Satoshi Hineno , Kimihiro Saito
CPC分类号： G11B7/1372 , G11B7/123 , G11B7/127 , G11B7/131 , G11B7/1353 , G11B2007/0006 , G11B2007/13727
摘要： The present invention provides a compact recording and reproducing apparatus capable of playing back DVD and CDs including CD-R. This apparatus comprises a means of focusing a light of a first or second wavelength onto a first or second recording media; a first means disposed off the optical axis of the focusing means to generate a light of the first wavelength; a second means disposed on the optical axis of the focusing means to generate a light of the second wavelength; a means of correcting a coma aberration in the light of the first wavelength and guiding the corrected light along the optical axis of the focusing means, and a means of detecting the light of the first or second wavelength reflected from the first or second recording media.
摘要翻译： 本发明提供一种能够播放包含CD-R的DVD和CD的紧凑型记录和再现装置。 该装置包括将第一或第二波长的光聚焦到第一或第二记录介质上的装置; 设置在所述聚焦装置的光轴上以产生所述第一波长的光的第一装置; 设置在聚焦装置的光轴上以产生第二波长的光的第二装置; 校正第一波长的光的彗形像差并沿着聚焦装置的光轴引导校正的光的装置，以及检测从第一或第二记录介质反射的第一或第二波长的光的装置。
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43.发明授权Prism has a plurality of reflective regions each with a predetermined phase difference 失效棱镜具有多个具有预定相位差的反射区域
公开(公告)号：US5742577A
公开(公告)日：1998-04-21
申请号：US685474
申请日：1996-07-24
CPC分类号： G11B7/131 , G02B5/04 , G02B5/3083 , G11B11/10543 , G11B7/123 , G11B7/1356 , G11B7/1359 , G11B7/1367
摘要： In an optical pickup apparatus, including a laser source arranged along an optical axis, a polarization beam splitter and an objective lens, wherein light emitted from the laser source is emitted on a recording plane of an optical-magnetical recording media as a converged beam, light beams reflected from the recording media of the optical-magnetical recording media are separated by said polarization beam splitter to obtain a predetermined polarized light component, a phase change means, which changes a phase of light passing through one side of said optical axis and a phase of light passing through another side of said optical axis by a predetermined angle, such as 1/2 wavelength plate, a phase retardation type prism and a combination optical rotation plate, is provided between the polarization beam splitter and the objective lens, and, an optical detection element, which detects the light polarized by the polarization beam splitter, is provided at a side intersecting the phase change means of the polarization beam splitter.
摘要翻译： 在包括沿着光轴布置的激光源的光学拾取装置中，偏振分束器和物镜，其中从激光源发射的光作为会聚光束发射在光磁记录介质的记录平面上， 从光磁记录介质的记录介质反射的光束被所述偏振分束器分离以获得预定的偏振光分量，相变装置改变通过所述光轴的一侧的光的相位和 在偏振光束分离器和偏振光分束器之间设置有通过光轴另一侧预定角度的光，例如+ E，fra 1/2 + EE波片，相位延迟型棱镜和组合旋转板 物镜和检测由偏振分束器偏振的光的光学检测元件设置在与pha相交的一侧 偏振分束器的改变装置。
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44.发明授权Prism has a plurality of reflective regions each with a predetermined phase difference 失效棱镜具有多个具有预定相位差的反射区域
公开(公告)号：US5563869A
公开(公告)日：1996-10-08
申请号：US394270
申请日：1995-02-24
CPC分类号： G11B7/131 , G02B5/04 , G02B5/3083 , G11B11/10543 , G11B7/123 , G11B7/1356 , G11B7/1359 , G11B7/1367
摘要： In an optical pickup apparatus, including a laser source arranged along an optical axis, a polarization beam splitter and an objective lens, wherein light emitted from the laser source is emitted on a recording plane of an optical-magnetical recording media as a converged beam, light beams reflected from the recording media of the optical-magnetical recording media are separated by said polarization beam splitter to obtain a predetermined polarized light component, a phase change means, which changes a phase of light passing through one side of said optical axis and a phase of light passing through another side of said optical axis by a predetermined angle, such as wavelength plate, a phase retardation type prism and a combination optical rotation plate, is provided between the polarization beam splitter and the objective lens, and, an optical detection element, which detects the light polarized by the polarization beam splitter, is provided at a side intersecting the phase change means of the polarization beam splitter.
摘要翻译： 在包括沿着光轴布置的激光源的光学拾取装置中，偏振分束器和物镜，其中从激光源发射的光作为会聚光束发射在光磁记录介质的记录平面上， 从光磁记录介质的记录介质反射的光束被所述偏振分束器分离以获得预定的偏振光分量，相变装置改变通过所述光轴的一侧的光的相位和 在偏振光束分离器和物镜之间设置有通过光轴另一侧预定角度的光的相位，例如波长板，相位延迟型棱镜和组合光旋转板，并且光学检测 检测由偏振分束器偏振的光的元件设置在与相变平均值相交的一侧 s的偏振分束器。
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45.发明授权公开(公告)号：US08854938B2
公开(公告)日：2014-10-07
申请号：US13817033
申请日：2011-08-11
IPC分类号： G11B7/00 , G11B7/24085 , G11B7/007 , G11B7/26
CPC分类号： G11B7/00736 , G11B7/24085 , G11B7/261 , G11B7/263
摘要： An optical recording medium and a manufacturing method for forming the optical recording medium is provided.The optical recording medium includes a bar code-shaped reflection pattern that includes high reflection rate regions and low reflection rate regions and information is recorded with the bar code-shaped reflection pattern. The low reflection rate region is formed with pit strings. The high reflection rate region and the low reflection rate region are formed to satisfy: S+M/2≦0.6H, where a signal level of a reproduction signal obtained from a reflection light in the high reflection rate region is denoted as “H”, a signal level of a reproduction signal obtained from a reflection light in the low reflection rate region is denoted as “S”, and a degree of modulation of the reproduction signal obtained from the reflection light in the low reflection rate region is denoted as “M”.
摘要翻译： 提供一种用于形成光记录介质的光记录介质和制造方法。 光记录介质包括条形码反射图案，其包括高反射率区域和低反射率区域，并且利用条形码反射图案记录信息。 低反射率区域形成有凹坑串。 高反射率区域和低反射率区域被形成为满足S + M / 2＆nlE; 0.6H，其中从高反射率区域中的反射光获得的再现信号的信号电平被表示为“H” 将从低反射率区域的反射光获得的再现信号的信号电平表示为“S”，将从低反射率区域的反射光获得的再现信号的调制度表示为“ M“。
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46.发明授权公开(公告)号：US08526289B2
公开(公告)日：2013-09-03
申请号：US12797707
申请日：2010-06-10
申请人： Goro Fujita , Daisuke Ueda , Mitsuaki Oyamada , Takashi Iwamura , Kimihiro Saito , Jingcheng Yuan
发明人： Goro Fujita , Daisuke Ueda , Mitsuaki Oyamada , Takashi Iwamura , Kimihiro Saito , Jingcheng Yuan
CPC分类号： G11B7/00452 , B82Y10/00 , G11B7/005
摘要： An optical information reproducing apparatus includes: an irradiation section irradiating a light beam onto an optical information recording medium, in which holes are formed along a virtual track on a recording medium, along the virtual track; a light receiving section receiving a reflected light beam when the light beam is reflected by the optical information recording medium and sequentially generating a light receiving signal corresponding to the light intensity; a detection section detecting a variation pattern appearing when a signal level of the light receiving signal changes according to the hole; and a code string generating section, when generating a code string corresponding to the signal level, generating a code corresponding to the one hole from the variation pattern if the variation pattern falls within a range and generating a code string, which includes a plurality of codes, from the variation pattern if the variation pattern exceeds the range.
摘要翻译： 光信息重放装置包括：沿着虚拟轨道将光束照射到沿着记录介质上的虚拟轨道形成空穴的光信息记录介质上的照射部分; 光接收部，当光束被光信息记录介质反射并顺序地产生对应于光强度的光接收信号时，接收反射光束; 检测部，其检测当所述光接收信号的信号电平根据所述孔变化时出现的变化模式; 以及代码串生成部，当生成与所述信号电平对应的代码串时，如果所述变化模式落在范围内，则从所述变化模式生成与所述一个孔相对应的代码，并且生成代码串，所述代码串包括多个代码 ，如果变化模式超出范围，则从变化模式。
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47.发明授权公开(公告)号：US08369201B2
公开(公告)日：2013-02-05
申请号：US13053566
申请日：2011-03-22
IPC分类号： G11B7/00
CPC分类号： G11B7/0908 , G11B7/00781 , G11B7/0938 , G11B7/1376 , G11B2007/0013
摘要： There is provided an optical pickup including: an optical-system having an object-lens illuminating a first light for information recording or reproducing on a recording layer as a target and a second light on an optical-recording medium including a reference plane having a reflection-layer and the recording-layer at a layer position different from that of the reference-plane and on which information recording is performed through mark formation, and a focus-aligned-position-adjusting unit adjusting a focus-aligned position of the first light through the object-lens by changing collimation thereof incident to the object-lens; and a focusing-mechanism driving the object-lens in a focusing direction, wherein, when a depth of focus λ/NA2 defined by a wavelength λ of the first light and a numerical aperture NA of the object lens is set to α and the maximum-surface-blur range is denoted by D, the optical-system is designed so that a use magnification ratio β satisfies |β|≧√(D/α).
摘要翻译： 提供了一种光学拾取器，包括：光学系统，其具有在作为目标的记录层上照射用于信息记录或再现的第一光的物镜，以及在包括具有反射的参考平面的光记录介质上的第二光 层和位于不同于参考平面的层位置处的记录层，并且通过标记形成执行信息记录;以及聚焦对准位置调整单元，调整第一光的聚焦对准位置 通过改变入射到物镜的准直通过物镜; 以及在聚焦方向上驱动物镜的聚焦机构，其中，当由所述第一光的波长λ和所述物镜的数值孔径NA定义的焦深λ/ NA2被设定为α并且最大值 表面模糊范围由D表示，光学系统设计成使用放大率＆bgr; 满足|＆bgr | |≧√（D /α）。
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公开(公告)号：US08345521B2
公开(公告)日：2013-01-01
申请号：US12511566
申请日：2009-07-29
IPC分类号： G11B15/04
CPC分类号： G11B7/08511 , G11B7/00452 , G11B7/083
摘要： An optical disc apparatus includes a light separator configured to separate a light beam emitted from a light source into a main beam and a sub-beam, an objective lens configured to, when the light beam is condensed and irradiated to an optical disc having a uniform recording layer in which a track is formed by record marks, irradiate at least part of the sub-beam to an area where the main beam is not irradiated in a radial direction which is defined as a direction of radius of the optical disc, and a signal generating unit configured to generate a mark layer distance signal, representing a distance between a focus of the light beam and a mark layer to which the track belongs, based on a return light beam resulting from at least one of the main beam and the sub-beam, which has been irradiated to the track.
摘要翻译： 光盘装置包括：光分离器，被配置为将从光源发射的光束分离成主光束和子光束;物镜，被配置为当光束被冷凝并照射到具有均匀的光盘时 通过记录标记形成轨道的记录层，将所述子光束的至少一部分照射到被定义为所述光盘的半径方向的径向的所述主光束不被照射的区域，以及 信号生成单元，被配置为基于从所述主光束和所述子像素中的至少一个产生的返回光来生成表示所述光束的焦点与所述轨道所属的标记层之间的距离的标记层距离信号 光束已被照射到轨道上。
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49.发明授权公开(公告)号：US08040764B2
公开(公告)日：2011-10-18
申请号：US12472667
申请日：2009-05-27
IPC分类号： G11B7/00
CPC分类号： G11B7/08523 , G11B7/00452 , G11B7/0065 , G11B7/083 , G11B7/0901 , G11B7/0908 , G11B7/0938 , G11B7/0941 , G11B7/1378 , G11B7/13925 , G11B2007/0009
摘要： An optical disc apparatus includes an objective lens that converges a light beam emitted from a light source and irradiates an optical disc having recording marks formed in a uniform recording layer with it, a detection signal generation section that receives a return light beam from the recording mark and generates a detection signal, a servo control signal generation section that generates a servo control signal representing relative displacement between the recording mark and a focus of the light beam from the detection signal and a servo signal correction section that generates a correction servo control signal by connecting peaks or neighborhoods of the peaks of servo control signals, the peaks being produced according to the recording marks.
摘要翻译： 一种光盘装置，包括：会聚从光源射出的光束的物镜，照射具有形成在均匀记录层中的记录标记的光盘;检测信号生成部，其从记录标记接收返回光束; 并产生检测信号;伺服控制信号生成部，其根据检测信号生成表示记录标记与光束焦点之间的相对位移的伺服控制信号;以及伺服信号校正部，其通过以下步骤生成校正伺服控制信号 连接伺服控制信号的峰值的峰值或邻域，根据记录标记产生峰值。
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50.发明申请公开(公告)号：US20110242951A1
公开(公告)日：2011-10-06
申请号：US13053566
申请日：2011-03-22
IPC分类号： G11B7/135
CPC分类号： G11B7/0908 , G11B7/00781 , G11B7/0938 , G11B7/1376 , G11B2007/0013
摘要： There is provided an optical pickup including: an optical-system having an object-lens illuminating a first light for information recording or reproducing on a recording layer as a target and a second light on an optical-recording medium including a reference plane having a reflection-layer and the recording-layer at a layer position different from that of the reference-plane and on which information recording is performed through mark formation, and a focus-aligned-position-adjusting unit adjusting a focus-aligned position of the first light through the object-lens by changing collimation thereof incident to the object-lens; and a focusing-mechanism driving the object-lens in a focusing direction, wherein, when a depth of focus λ/NA2 defined by a wavelength λ of the first light and a numerical aperture NA of the object lens is set to α and the maximum-surface-blur range is denoted by D, the optical-system is designed so that a use magnification ratio β satisfies |β|≧√(D/α).
摘要翻译： 提供了一种光学拾取器，包括：光学系统，其具有在作为目标的记录层上照射用于信息记录或再现的第一光的物镜，以及在包括具有反射的参考平面的光记录介质上的第二光 层和位于不同于参考平面的层位置处的记录层，并且通过标记形成执行信息记录;以及聚焦对准位置调整单元，调整第一光的聚焦对准位置 通过改变入射到物镜的准直通过物镜; 以及在聚焦方向上驱动物镜的聚焦机构，其中，当由所述第一光的波长λ和所述物镜的数值孔径NA定义的焦深λ/ NA2被设定为α并且最大值 表面模糊范围由D表示，光学系统设计成使用放大率＆bgr; 满足|＆bgr | |≧√（D /α）。
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