公开(公告)号：US20090161499A1

公开(公告)日：2009-06-25

申请号：US12294310

申请日：2007-03-26

申请人： Hideki Aikoh ,  Masahiro Birukawa

发明人： Hideki Aikoh ,  Masahiro Birukawa

IPC分类号： G11B11/00

CPC分类号： G11B7/122 ,  G11B7/08582 ,  G11B7/1387

摘要： A conventional near-field optical head cannot be miniaturized because a scattering body generating a near field and an optical head exist individually. A near-field optical head capable of being significantly miniaturized is constituted by a near-field optical probe slider formed by holding, on a slider, a semiconductor laser, a heat dissipation member, a prism for guiding light from the semiconductor laser to a scattering body and a photodetector element.

摘要翻译： 常规的近场光学头不能小型化，因为产生近场和光学头的散射体单独存在。 能够显着地小型化的近场光学头由近场光学探头滑块构成，其通过在滑块上保持半导体激光器，散热构件，用于将来自半导体激光器的光引导到散射的棱镜 身体和光电检测器元件。

公开(公告)号：US20090046564A1

公开(公告)日：2009-02-19

申请号：US12293291

申请日：2007-03-19

申请人： Fumitomo Yamasaki ,  Hideki Aikoh ,  Akihiro Arai

发明人： Fumitomo Yamasaki ,  Hideki Aikoh ,  Akihiro Arai

IPC分类号： G11B7/135

CPC分类号： G11B7/0956 ,  G11B7/1378 ,  G11B7/13927 ,  G11B2007/0006

摘要： In an optical head (10) used for an optical disc (30) in which light-transmitting layers largely change in thickness, a degree-of-diversion/convergence enlarging member (20) fixed between a collimating lens (4) and an objective lens (6) is arranged. With this configuration, a moving range of the collimating lens can be reduced, and the optical head can be miniaturized.

摘要翻译： 在用于其中透光层厚度变化很大的光盘（30）的光学头（10）中，固定在准直透镜（4）和物镜（4）之间的分度/会聚放大部件（20） 配置透镜（6）。 利用这种配置，可以减小准直透镜的移动范围，并且可以使光学头小型化。

公开(公告)号：US20080095513A1

公开(公告)日：2008-04-24

申请号：US11998260

申请日：2007-11-29

申请人： Fumitomo Yamasaki ,  Takao Hayashi ,  Hideki Aikoh

发明人： Fumitomo Yamasaki ,  Takao Hayashi ,  Hideki Aikoh

IPC分类号： H04N5/91

CPC分类号： H04N1/00347 ,  G11B20/00086 ,  G11B20/10 ,  H04N1/00251 ,  H04N1/2307 ,  H04N1/2376 ,  H04N5/765 ,  H04N5/772 ,  H04N5/907 ,  H04N5/913 ,  H04N5/9201 ,  H04N2005/91328 ,  H04N2201/0084

摘要： A first information recorder comprises a limited number-of-times of copying information setting unit for setting information on the limited number-of-times of copying electronic data, a first limited number-of-times of copying information updating unit for reading out the electronic data from a first information recording medium containing electronic data set with limited number of times of copying information by the limited number-of-times of copying information setting unit and updating the limited number-of-times of copying information set with respect to the electronic data, and a first transmitter for transmitting electronic data whose limited number-of-times of copying information is updated by the first limited number of times of copying information updating unit. A second information recorder comprises a second receiver for receiving electronic data transmitted from the first transmitter, a second limited number-of-times of copying information updating unit for reading out the electronic data from a second information containing medium recording the electronic data and updating the limited number-of-times of copying information set with respect to the electronic data, and a second transmitter for transmitting electronic data whose limited number-of-times of copying information is updated by the second limited number-of-times of copying information updating unit.

摘要翻译： 第一信息记录器包括有限数量的复制信息设置单元，用于设置关于复制电子数据的有限次数的信息，第一有限次数的复制信息更新单元，用于读出 来自第一信息记录介质的电子数据，该第一信息记录介质包含复制信息的有限次数的拷贝信息的有限次数的电子数据集，并且更新相对于该复制信息设置单元设置的复制信息的有限次数 电子数据，以及第一发送器，用于发送其复制信息的有限次数被复制信息更新单元的第一有限次数更新的电子数据。 第二信息记录器包括用于接收从第一发送器发送的电子数据的第二接收器，第二有限数量的复制信息更新单元，用于从包含记录电子数据的介质的第二信息读出电子数据，并更新 复制信息复制信息数量有限的复制信息次数有限，第二发送器用于发送复制信息的有限次数被复制信息更新的次数有限的第二发送器 单元。

公开(公告)号：US20080084809A1

公开(公告)日：2008-04-10

申请号：US11905927

申请日：2007-10-05

申请人： Eishin Mori ,  Hideki Aikoh ,  Joji Anzai ,  Kousei Sano

发明人： Eishin Mori ,  Hideki Aikoh ,  Joji Anzai ,  Kousei Sano

IPC分类号： G11B7/135

CPC分类号： G11B7/1353 ,  G02B27/0037 ,  G02B27/4238 ,  G11B7/1376 ,  G11B7/13925 ,  G11B2007/0013

摘要： An optical head device is provided with a semiconductor laser, an aberration correcting element for transmitting a beam from the semiconductor laser, a light guiding portion for introducing the beam from the semiconductor laser to the aberration correcting element, and an objective lens for focusing the beam having passed through the aberration correcting element on an optical disc. The aberration correcting element corrects a longitudinal chromatic aberration occurring in the objective lens and a longitudinal chromatic aberration occurring in the light guiding portion excluding the objective lens and the aberration correcting element based on a longitudinal chromatic aberration occurring in the aberration correcting element when the semiconductor laser emits a beam having a wavelength different by a specified wavelength difference.Therefore, an optical head device, an aberration correction method and an optical information processing apparatus can be provided which can suppress a longitudinal chromatic aberration occurring in the entire optical system from a light source to an objective lens.

摘要翻译： 光学头装置设置有半导体激光器，用于透射来自半导体激光器的光束的像差校正元件，用于将来自半导体激光器的光束引入到像差校正元件的导光部分，以及用于聚焦光束的物镜 已经通过光盘上的像差校正元件。 像差校正元件根据在半导体激光器中产生的像差校正元件中发生的纵向色差校正在物镜中发生的纵向色差和除了物镜和像差校正元件之外的导光部分中产生的纵​​向色差 发射波长不同于特定波长差的波束。 因此，可以提供可以抑制从光源到物镜的整个光学系统中发生的纵向色差的光学头装置，像差校正方法和光学信息处理装置。

公开(公告)号：US07317675B2

公开(公告)日：2008-01-08

申请号：US10428564

申请日：2003-05-02

申请人： Hideki Nakata ,  Hironori Tomita ,  Hideki Aikoh

发明人： Hideki Nakata ,  Hironori Tomita ,  Hideki Aikoh

IPC分类号： G11B7/00

CPC分类号： G11B7/22 ,  G11B7/082 ,  G11B7/08582 ,  G11B7/123 ,  G11B7/1362 ,  G11B7/1372 ,  G11B11/1055

摘要： An integrated unit in which a light source and a light emitting diode are combined into one component is fixed to an optical bench. Then, relative position adjustment of an objective lens actuator is carried out with respect to the optical bench so that a desired detection signal can be obtained through reflected light from a disk information recording medium and then the objective lens actuator is fixed. The relative position adjustment of the integrated unit is no longer required and it is no longer necessary preliminarily to provide a margin for adjusting the integrated unit. Thus, an optical head can be reduced in size and thickness.

摘要翻译： 将光源和发光二极管组合成一个部件的集成单元固定到光学台。 然后，相对于光台执行物镜致动器的相对位置调整，从而可以通过来自盘信息记录介质的反射光获得期望的检测信号，然后固定物镜致动器。 集成单元的相对位置调整不再需要，不再需要提供调整一体化单元的余量。 因此，可以减小光学头的尺寸和厚度。

公开(公告)号：US07317672B2

公开(公告)日：2008-01-08

申请号：US10526646

申请日：2003-09-05

申请人： Hideki Nakata ,  Hironori Tomita ,  Hideki Aikoh

发明人： Hideki Nakata ,  Hironori Tomita ,  Hideki Aikoh

IPC分类号： G11B7/12

CPC分类号： G11B7/131 ,  G11B7/094 ,  G11B7/0943 ,  G11B7/0956

摘要： An optical head includes the following: a light beam separator (35) that includes substantial interference regions for light that is reflected from an information recording medium and travels in a straight path and ±first-order diffracted light produced by information tracks of the information recording medium, and diffracts each of plural light beams in regions (32a, 32b) of the substantial interference regions, where the amount of light is changed by a change in the relative angle between the information recording medium and the objective lens and by a shift of the objective lens in the radial direction of the information recording medium; a light-receiving element (36a, 36b) for receiving the light beam that is reflected by the information recording medium and separated by the light beam separator (35); and an arithmetic circuit that corrects a value of an electrical signal detected by the light-receiving element (36a, 36b) in accordance with a radial position signal corresponding to the amount of shift of the objective lens in the radial direction of the information recording medium, and detects the relative angle between the information recoding medium and the objective lens.

摘要翻译： 光头包括：光束分离器（35），其包括从信息记录介质反射并在直线路径中行进的光的实质干涉区域和由信息记录信息轨道产生的±一级衍射光 在基本干涉区域的区域（32 a，32b）中的多个光束中的每一个被介质衍射，其中光量由于信息记录介质和物镜之间的相对角度的变化而改变，并且由 物镜在信息记录介质的径向上移动; 用于接收被信息记录介质反射并由光束分离器（35）分离的光束的光接收元件（36a，36b）; 以及算术电路，其根据与所述物镜在所述信息的径向方向上的偏移量相对应的径向位置信号来校正由所述受光元件（36a，36b）检测到的电信号的值 并且检测信息记录介质和物镜之间的相对角度。

公开(公告)号：US20070268806A1

公开(公告)日：2007-11-22

申请号：US11570821

申请日：2006-04-11

申请人： Fumitomo Yamasaki ,  Eishin Mori ,  Hideki Aikoh ,  Akihiro Arai ,  Joji Anzai

发明人： Fumitomo Yamasaki ,  Eishin Mori ,  Hideki Aikoh ,  Akihiro Arai ,  Joji Anzai

IPC分类号： G11B7/00

CPC分类号： G11B7/13925 ,  G11B7/1369 ,  G11B7/1376 ,  G11B2007/0013

摘要： Fifth order spherical aberration in addition to third order spherical aberration for an optical information recording medium of which thickness of a light transmission layer changes greatly is corrected. An objective lens collects a laser beam emitted from a semiconductor laser on an optical information recording medium. A spherical aberration correcting portion corrects spherical aberration generated according to a thickness of the light transmission layer of the optical information recording medium, in which the spherical aberration correcting portion includes a collimator lens, a lens holder and a stepping motor for correcting the third order spherical aberration and a liquid crystal element and an applied voltage control portion for correcting the fifth order spherical aberration.

摘要翻译： 校正光传输层的厚度变化较大的光信息记录介质的三阶球面像差的第五级球面像差。 物镜将从半导体激光器发射的激光束收集在光学信息记录介质上。 球面像差校正部分校正根据光学信息记录介质的光透射层的厚度产生的球面像差，其中球面像差校正部分包括准直透镜，透镜保持器和用于校正三阶球面的步进电机 像差和用于校正五阶球面像差的液晶元件和施加电压控制部分。

公开(公告)号：US20050180297A1

公开(公告)日：2005-08-18

申请号：US11059700

申请日：2005-02-17

申请人： Makoto Takashima ,  Hideki Aikoh

发明人： Makoto Takashima ,  Hideki Aikoh

IPC分类号： G11B7/00 ,  G11B7/125 ,  G11B7/13 ,  G11B7/135 ,  G11B7/12

CPC分类号： G11B7/139 ,  G11B7/1263 ,  G11B7/1275 ,  G11B7/131 ,  G11B7/133 ,  G11B7/1356 ,  G11B2007/0006

摘要： An optical-disk drive device is provided which is capable of executing recording or reproduction at a plurality of numerical apertures and keeping constant the quantity of light which is emitted by a light-emitting element. This optical-disk drive device includes: light-emitting elements; a beam splitter which allows a luminous flux that is emitted by each of these light-emitting elements to branch off to a first luminous flux and a second luminous flux; a photo-detector which detects a front light that has branched off at the beam splitter; an aperture restriction member; and a controller which controls the quantity of light that is emitted by each of the light-emitting elements, using a signal which is obtained by the photo-detector, in which the photo-detector has a circular first detection area in which an inner luminous flux of the first luminous flux is received, and a ring-shaped second detection area in which an outer luminous flux of the first luminous flux is received; and the controller controls the quantity of light, at the time of a large numerical aperture, based on the quantity of light which is received in the first detection area and the second detection area, and controls the quantity of light, at the time of a small numerical aperture, based on the quantity of light which is received in the first detection area.

摘要翻译： 提供了能够以多个数值孔径执行记录或再现并保持由发光元件发射的光量恒定的光盘驱动装置。 该光盘驱动装置包括：发光元件; 分束器，其允许由这些发光元件中的每一个发射的光束分支到第一光束和第二光束; 光检测器，其检测在分束器处分支的前光; 孔限制构件; 以及控制器，其使用由光检测器获得的信号来控制由每个发光元件发射的光量，其中光检测器具有圆形的第一检测区域，其中内部发光 接收第一光通量的磁通，接收第一光通量的外光束的环状的第二检测区域; 并且所述控制器在大数值孔径时基于在所述第一检测区域和所述第二检测区域中接收到的光量来控制所述光量，并且控制所述光量的量 基于在第一检测区域中接收的光量的小数值孔径。

公开(公告)号：US20050128897A1

公开(公告)日：2005-06-16

申请号：US11005071

申请日：2004-12-06

申请人： Fumitomo Yamasaki ,  Takuya Wada ,  Hideki Aikoh

发明人： Fumitomo Yamasaki ,  Takuya Wada ,  Hideki Aikoh

IPC分类号： G11B7/00 ,  G11B7/08 ,  G11B7/12 ,  G11B7/14 ,  G11B21/02

CPC分类号： G11B21/02 ,  G11B7/08 ,  G11B7/12 ,  G11B2007/0006

摘要： In an optical head for performing the reproduction or recording of information for two or more types of different optical disks, the damage caused to an optical disk or an objective lens by collision between the optical disk and the objective lens is avoided. An optical heads device for reproducing or recording two or more types of information recording mediums different from each other comprises a first optical system, a second optical system, and a control unit for avoiding the collision between an optical disk and a second objective lens when a first optical system is in operation.

摘要翻译： 在用于执行用于两种或更多种类型的不同光盘的信息的再现或记录的光学头中，避免了由光盘和物镜之间的碰撞对光盘或物镜造成的损坏。 用于再现或记录彼此不同的两种或更多种类型的信息记录介质的光学头装置包括：第一光学系统，第二光学系统和控制单元，用于避免当光盘和第二物镜之间的碰撞时 第一光学系统正在运行。

公开(公告)号：US06865743B2

公开(公告)日：2005-03-08

申请号：US10717685

申请日：2003-11-19

申请人： Hideki Nakata ,  Hironori Tomita ,  Hideki Aikoh ,  Kenichi Miyamori ,  Takuya Wada

发明人： Hideki Nakata ,  Hironori Tomita ,  Hideki Aikoh ,  Kenichi Miyamori ,  Takuya Wada

IPC分类号： G11B7/09 ,  G11B7/12 ,  G11B7/135 ,  G11B7/22

CPC分类号： G11B7/22 ,  G11B7/123 ,  G11B7/1362 ,  G11B11/10597

摘要： A reflecting mirror and an optical bench are placed on an external jig provided with a mirror holding portion for maintaining the reflecting mirror, and then the reflecting mirror and the optical bench are bonded and fixed, thus obtaining an optical head. An adhesion reference plane for the reflecting mirror is no longer required in the optical bench, thus reducing the size and cost of the optical bench. The mounting precision is high and stable. Further, the reflecting mirror is bonded and fixed at the vicinities of the approximate centers of its two opposed side faces and therefore the variation in orientation of the reflecting mirror due to expansion or contraction of an adhesive is lessened, thus achieving a highly-reliable optical head excellent in environmental stability characteristics.