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公开(公告)号：US07940606B2
公开(公告)日：2011-05-10
申请号：US12481061
申请日：2009-06-09
IPC分类号： G11B11/00
CPC分类号： B82Y10/00 , G11B7/00454 , G11B7/005 , G11B7/007 , G11B7/1387 , G11B7/24035 , G11B7/24047 , G11B7/243 , G11B7/266 , G11B2007/24304 , G11B2007/24306 , G11B2007/2431 , G11B2007/24312 , G11B2007/2432 , G11B2007/24322 , G11B2007/24324 , G11B2007/24328
摘要： A signal detecting device includes: a semiconductor substrate; a near-field light generating section that is provided on the semiconductor substrate and generates near-field light near an interface with the semiconductor substrate; a light source that outputs light having wavelength corresponding to photon energy about a half as large as band-gap energy of a material of the semiconductor substrate; and a current detecting unit that detects a photocurrent generated in the semiconductor substrate when the near-field light is generated.
摘要翻译： 信号检测装置包括：半导体基板; 近场光产生部，设置在所述半导体基板上，并在与所述半导体基板的界面附近产生近场光; 输出具有与半导体衬底的材料的带隙能量的一半一半的光子能量对应的光的光源; 以及电流检测单元，其检测当产生近场光时在半导体衬底中产生的光电流。
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公开(公告)号：US20090310446A1
公开(公告)日：2009-12-17
申请号：US12481061
申请日：2009-06-09
IPC分类号： G11B11/00
CPC分类号： B82Y10/00 , G11B7/00454 , G11B7/005 , G11B7/007 , G11B7/1387 , G11B7/24035 , G11B7/24047 , G11B7/243 , G11B7/266 , G11B2007/24304 , G11B2007/24306 , G11B2007/2431 , G11B2007/24312 , G11B2007/2432 , G11B2007/24322 , G11B2007/24324 , G11B2007/24328
摘要： A signal detecting device includes: a semiconductor substrate; a near-field light generating section that is provided on the semiconductor substrate and generates near-field light near an interface with the semiconductor substrate; a light source that outputs light having wavelength corresponding to photon energy about a half as large as band-gap energy of a material of the semiconductor substrate; and a current detecting unit that detects a photocurrent generated in the semiconductor substrate when the near-field light is generated.
摘要翻译： 信号检测装置包括：半导体基板; 近场光产生部，设置在所述半导体基板上，并在与所述半导体基板的界面附近产生近场光; 输出具有与半导体衬底的材料的带隙能量的一半一半的光子能量对应的光的光源; 以及电流检测单元，其检测当产生近场光时在半导体衬底中产生的光电流。
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3.发明申请公开(公告)号：US20120051206A1
公开(公告)日：2012-03-01
申请号：US13212647
申请日：2011-08-18
申请人： Kazuhiko Fujiie , Koji Sekiguchi
发明人： Kazuhiko Fujiie , Koji Sekiguchi
CPC分类号： G11B7/1374 , G02B3/00 , G11B7/1387 , G11B2007/13727
摘要： An objective lens includes: a solid immersion lens having a super-hemispherical or hemispherical shape, wherein a hyper-lens portion is formed in a part of an object-side surface of the solid immersion lens and integrated therewith by alternately stacking a first thin film having a positive dielectric constant and a second thin film having a negative dielectric constant along spherical shapes starting from a spherical shape having a radius Ri around a predetermined reference point Pr set outside the object-side surface of the solid immersion lens to a spherical surface having a radius Ro (Ro>Ri) around the reference point Pr.
摘要翻译： 物镜包括：具有超半球形或半球形的固体浸没透镜，其中在透镜的物体侧表面的一部分中形成超透镜部分，并且通过交替堆叠第一薄膜 具有正介电常数的第二薄膜和沿着球形形状具有负介电常数的第二薄膜，从具有围绕围绕固体浸没透镜的物体侧表面外侧的预定参考点Pr的半径R 1的球形开始到具有 围绕参考点Pr的半径Ro（Ro> Ri）。
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公开(公告)号：US20130070577A1
公开(公告)日：2013-03-21
申请号：US13607085
申请日：2012-09-07
CPC分类号： G11B7/24091 , G11B7/24082 , G11B7/24085 , G11B2007/13727
摘要： Provided is an optical recording medium, including a plurality of tracks on each of which small record carriers are arranged in a wobbling manner, each of the small record carriers storing a recording state by modulation according to light irradiation, wherein the tracks are arranged adjacent to each other in a tracking direction which is a direction orthogonal to a longitudinal direction of the tracks, and there is a reflectance difference between a forming portion and a non-forming portion of the small record carrier in both of a recording state and a non-recording state of the small record carrier.
摘要翻译： 提供了一种光学记录介质，其中包括多个轨道，每个轨道以小的记录载体以摆动的方式布置，每个小记录载体通过根据光照射的调制存储记录状态，其中轨道被布置为邻近 在跟踪方向上彼此相对的方向，该跟踪方向是与轨道的纵向方向正交的方向，并且在记录状态和非记录状态两者之间存在小记录载体的形成部分和非成形部分之间的反射率差异， 记录小记录载体的状态。
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公开(公告)号：US20080199602A1
公开(公告)日：2008-08-21
申请号：US12148636
申请日：2008-04-21
CPC分类号： G11B11/10582 , G11B11/10517 , G11B11/10584
摘要： A method for manufacturing a magneto-optical recording medium in which reading of recorded information is performed through domain wall displacement in a reproduction layer is provided, in which magnetic separation of groove side-wall portions is performed more reliably; as a result a magneto-optical recording medium with satisfactory recording and reproduction characteristics can be provided. The method is to manufacture a magneto-optical recording medium in which on a substrate 1 having grooves 12 at least a reproduction layer and a recording layer, each of which is formed of magnetic layers, are deposited and recorded information is reproduced through domain wall displacement in the reproduction layer; and the method includes a first annealing process in which, after depositing at least the reproduction layer and recording layer on the substrate 1 on which are formed lands 11 and grooves 12, only side-wall portions 13 between adjacent lands 11 and grooves 12 are irradiated with laser light L1, and a second magnetization annealing process in which regions including adjacent side-wall portions 13 and lands between side-wall portions 13 are irradiated with laser light L2 having a spot diameter greater than the spot diameter of the laser light in the first annealing process, while applying an external magnetic field Hex.
摘要翻译： 提供了一种制造磁光记录介质的方法，其中通过再现层中的畴壁位移进行记录信息的读取，其中槽侧壁部分的磁分离更可靠地进行; 结果，可以提供具有令人满意的记录和再现特性的磁光记录介质。 该方法是制造磁光记录介质，其中在至少具有由磁层形成的再生层和记录层的凹槽12的基板1上沉积，并通过畴壁位移再现记录信息 在复制层; 并且该方法包括第一退火处理，其中在至少将再生层和记录层沉积在其上形成有焊盘11和凹槽12的基板1上之后，仅在相邻焊盘11和槽12之间照射侧壁部分13 激光L 1和第二磁化退火处理，其中包括相邻的侧壁部分13和侧壁部分13之间的区域的区域被照射具有大于激光的光斑直径的光点直径的激光L 2 在第一退火过程中，同时施加外部磁场Hex。
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公开(公告)号：US07305689B2
公开(公告)日：2007-12-04
申请号：US10833540
申请日：2004-07-15
申请人： Naohiro Netsu , Yoshitaka Aoki , Tetsu Watanabe , Kazuhiko Fujiie , Yasuaki Maeda , Takuya Kaeriyama
发明人： Naohiro Netsu , Yoshitaka Aoki , Tetsu Watanabe , Kazuhiko Fujiie , Yasuaki Maeda , Takuya Kaeriyama
IPC分类号： G11B7/24
CPC分类号： B29C69/001 , B29C2793/0009 , B29L2017/005 , G11B7/007 , G11B7/24 , G11B7/24038 , G11B7/24085 , G11B11/10508 , G11B11/10582 , G11B17/03 , G11B23/0035 , G11B23/0307 , G11B23/0308 , G11B23/0317
摘要： An optical recording medium is provided which has a substrate and a signal recording layer provided on the substrate and in which an information signal is recorded in the form of microscopic pits. A light beam is focused on the signal recording layer and some change of the light beam carried by a return light from the signal recording layer is detected to read the information signal recorded on the signal recording layer. The optical recording medium has a diameter of 65 mm or less and a thickness of 0.4 to 0.7 mm. An information signal recording area extends outwardly from a radial position of 12.5 mm or less from the center of the medium. The ratio in area between the information signal recording area and non-signal recording area is 3.4 or more. The storage capacity of this medium is 2 gigabytes or more. The optical recording medium has formed at the center thereof a center hole around which an annular table-abutment convexing to one side of the medium is formed. A magnetic-clamping hub is installed in the center hole and thus the medium is magnetically clamped to a rotation driving mechanism of an optical recording and/or reproducing apparatus. The compactness and high density of recording of the optical recording medium will contribute greatly to a further compact structure of a recording and/or reproducing apparatus in which the medium is to be used.
摘要翻译： 提供了一种光记录介质，其具有基板和设置在基板上的信号记录层，其中以微观凹坑的形式记录信息信号。 光束聚焦在信号记录层上，并且检测由来自信号记录层的返回光所携带的光束的一些变化，以读取记录在信号记录层上的信息信号。 光记录介质的直径为65mm以下，厚度为0.4〜0.7mm。 信息信号记录区域从介质中心的12.5mm或更小的径向位置向外延伸。 信息信号记录区域与非信号记录区域之间的面积比为3.4以上。 该介质的存储容量为2 GB或更多。 光记录介质在其中心处形成有中心孔，在该中心孔处形成有凸起到介质一侧的环形台面邻接。 磁性夹紧轮毂安装在中心孔中，因此介质被磁力夹紧到光学记录和/或再现装置的旋转驱动机构。 光记录介质的紧凑性和高密度记录对于使用介质的记录和/或再现装置的进一步紧凑结构将有很大的贡献。
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7.发明申请公开(公告)号：US20070008832A1
公开(公告)日：2007-01-11
申请号：US10569749
申请日：2004-08-19
IPC分类号： G11B11/00
CPC分类号： G11B11/10582
摘要： A laser beam from an LD 11 is irradiated onto a magnetooptic disk 33 by a predetermined power for a heat treatment. After the heat treatment, the laser beam of a power smaller than the power upon heat treatment is irradiated to the heat-treated area. Reflection light of the laser beam of the small power enters photodetectors 24 and 26 and reflection light amounts of a P wave and an S wave are detected, respectively. A differential detecting circuit 27 detects a level of a magnetooptic signal corresponding to the heat-treated area on the basis of the reflection light amounts of the P wave and the S wave. A controller 28 determines whether or not the magnetooptic signal level detected by the differential detecting circuit 28 lies within a permissible range. If it is out of the range, the power of the laser beam to execute the heat treatment is adjusted and the process of a magnetooptic disk is stopped or a message showing such a fact is displayed, or the like.
摘要翻译： 来自LD11的激光束以预定的功率照射在磁光盘33上用于热处理。 在热处理之后，将热处理后的功率小于的功率的激光束照射到热处理区域。 小功率激光束的反射光分别进入光电探测器24和26，分别检测P波和S波的反射光量。 差分检测电路27基于P波和S波的反射光量来检测与热处理区域对应的磁光信号的电平。 控制器28确定由差分检测电路28检测的磁光信号电平是否处于容许范围内。 如果超出该范围，则调整执行热处理的激光束的功率，并且停止磁光盘的处理或者显示表示这种事实的消息等。
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8.发明授权Magneto-optical disc having preformatted information to prevent unauthorized data duplication 失效具有预格式化信息以防止未授权数据复制的磁光盘
公开(公告)号：US5650991A
公开(公告)日：1997-07-22
申请号：US869366
申请日：1992-04-14
申请人： Kazuhiko Fujiie
发明人： Kazuhiko Fujiie
IPC分类号： G11B20/12 , G11B7/0037 , G11B7/007 , G11B11/105 , G11B27/00 , G11B27/034 , G11B27/19 , G11B27/24 , G11B27/32 , G11B27/34 , G11B27/36 , G11B7/24 , G11B15/04
CPC分类号： G11B7/00736 , G11B11/10582 , G11B11/10595 , G11B20/00086 , G11B20/00724 , G11B27/034 , G11B27/19 , G11B27/24 , G11B27/329 , G11B27/34 , G11B7/0037 , G11B2220/2525 , G11B2220/2529 , G11B2220/2545 , G11B27/36
摘要： A magneto-optical disc 1 has a TOC area in which the cumulative recordable data volume or the cumulative recordable time is preformatted, and a user TOC area in which the cumulative recorded data volume or the cumulative recorded time is preformatted. When recording audio data, a system controller 17 restricts the volume of recording data or the recording time based on the cumulative recordable data volume, the cumulative recordable time, cumulative recorded data volume, the cumulative recorded time or the data compression factor, while causing an updated cumulative recorded data or an updated cumulative recorded time to be recorded. Restrictions of the recording may be performed based on the cumulative recorded data volume or the cumulative recorded time. A prepaid system may be realized by charging the fee conforming to the cumulative recordable data volume or the cumulative recordable time at the time of sale of the disc.
摘要翻译： 磁光盘1具有其中累积可记录数据量或累积可记录时间被预格式化的TOC区域，并且其中累积记录数据量或累积记录时间被预格式化的用户TOC区域。 当记录音频数据时，系统控制器17基于累积可记录数据量，累积可记录时间，累积记录数据量，累积记录时间或数据压缩因子来限制记录数据的量或记录时间，同时引起 更新的累积记录数据或记录的更新的累积记录时间。 记录的限制可以基于累积记录数据量或累积记录时间来执行。 预付费系统可以通过对符合该可累积记录数据量的费用或盘销售时的累积可记录时间进行计费来实现。
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9.发明授权Magneto-optical recording/reproducing apparatus with optical pickup device having a multi-layer dielectric film beam splitter 失效具有具有多层电介质膜分束器的光学拾取装置的磁光记录/再现装置
公开(公告)号：US5467336A
公开(公告)日：1995-11-14
申请号：US163927
申请日：1993-12-08
申请人： Nobuhiko Ando , Kazuhiko Fujiie
发明人： Nobuhiko Ando , Kazuhiko Fujiie
IPC分类号： G02B5/30 , G11B7/135 , G11B11/10 , G11B11/105 , G11B7/00
CPC分类号： G11B11/10545 , G11B11/10595
摘要： An optical pickup device for an information recording and/or reproducing apparatus in which fluctuations in polarization film characteristics due to the variable incident angles of the light beam to the beam splitter may be reduced to prevent C/N characteristics from being lowered. The optical pickup device includes an objective lens 3 for converging a light beam L from a laser light source 1 to a magneto-optical disc 2, a beam splitter 8 arranged on a light path between the laser light source 1 and the objective lens 3 for guiding a return laser light beam Lr from the disc to outside of the light path, and a photodetector 4 for detecting the return light beam Lr guided by the beam splitter 8 to outside of the light path. The beam splitter 8 is arranged at a portion in the light path between the laser light source 1 and the objective lens 3 in which the light beam L from the laser light source 1 is a divergent light beam. The multi-layered dielectric film 12 of the beam splitter 8 has polarization film characteristics of reflecting 65% of S-polarized light components and 35% of the P-polarized light components of the light beam L and the return light beam Lr incident on the multi-layered dielectric film 12.
摘要翻译： 一种用于信息记录和/或再现装置的光学拾取装置，其中可以减小由于光束到分束器的可变入射角引起的偏振膜特性的波动，以防止C / N特性降低。 光拾取装置包括用于将来自激光光源1的光束L会聚到磁光盘2的物镜3，布置在激光光源1和物镜3之间的光路上的分束器8，用于 将返回激光束Lr从光盘引导到光路外部;以及光电检测器4，用于检测由分束器8引导到光路外部的返回光束Lr。 分束器8布置在激光光源1和物镜3之间的光路中的来自激光光源1的光束L是发散光束的部分。 分束器8的多层电介质膜12具有反射S偏振光成分的65％的偏振膜特性和入射到光束L上的光束L和返回光束Lr的P偏振光分量的35％ 多层电介质膜12。
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公开(公告)号：US5402397A
公开(公告)日：1995-03-28
申请号：US136952
申请日：1993-10-13
申请人： Takashi Ohmori , Hajime Yano , Kazuhiko Fujiie
发明人： Takashi Ohmori , Hajime Yano , Kazuhiko Fujiie
IPC分类号： G11B5/02 , G11B11/10 , G11B11/105 , G11B13/04
CPC分类号： G11B11/10534 , G11B11/10552
摘要： An optical head applies a laser beam to a region of the magnetooptical disc, and a magnetic head applies a magnetic field to the region of the magnetooptical disc while the laser beam is being applied thereto, thereby to record information in the region. The optical and magnetic heads are interconnected by a link mechanism so that they are movable in unison with each other radially with respect to the magnetooptical disc. An electromagnetic shield is disposed around the magnetic head for blocking magnetic and electric fields parallel to the magnetooptical disc.
摘要翻译： 光学头将激光束施加到磁光盘的区域，并且磁头将磁场施加到磁光盘的区域，同时将激光束施加到其上，从而在该区域中记录信息。 光学磁头和磁头通过连杆机构相互连接，使得它们可相对于磁光盘径向移动。 电磁屏蔽设置在磁头周围，用于阻挡平行于磁光盘的磁场和电场。
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