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1. 发明授权

US5745265A Optical element utilized for optical storage unit and optical device including the optical element 失效
标题翻译：用于光学存储单元的光学元件和包括光学元件的光学装置
公开(公告)号：US5745265A
公开(公告)日：1998-04-28
申请号：US597710
申请日：1996-02-07
申请人： Shinya Hasegawa , Kohichi Tezuka , Hiroyasu Yoshikawa
发明人： Shinya Hasegawa , Kohichi Tezuka , Hiroyasu Yoshikawa
IPC分类号： G11B11/10 , G02B5/32 , G11B7/09 , G11B7/12 , G11B7/135 , G11B11/105 , G02B5/18
CPC分类号： G11B7/1359 , G02B5/32 , G11B11/10545 , G11B7/0908 , G11B7/0916 , G11B7/123 , G11B7/1353 , G11B7/1365
摘要： An optical element for writing and reading signals for an optical storage unit, and an optical device including the optical element, include an optical substrate made of a material allowing the transmission of a laser beam emitted from a semiconductor laser and disposed between the semiconductor laser and an optical storage medium; a first hologram formed on the optical substrate in such a manner as to transmit the laser beam, and to allow it to be incident into the optical storage medium and to diffract the laser beam reflected by the optical storage medium inside the optical substrate; and a second hologram formed on the optical substrate in such a manner as to transmit one polarization component of the laser beam diffracted by the first hologram and propagating inside the optical substrate, to diffract the other polarization component and to thus separate both polarization components. A signal representing the state of the optical storage medium is detected by detecting the difference of the intensities between the polarization components so separated.
摘要翻译：一种用于写入和读取用于光学存储单元的信号的光学元件和包括该光学元件的光学装置，包括由能够透射从半导体激光器发射的激光束并且设置在半导体激光器和光学存储介质; 形成在光学基板上的方式发射激光束的第一全息图，并允许其入射到光学存储介质中并将由光学存储介质反射的激光束衍射到光学基板内部; 以及形成在光学基板上的第二全息图，以便透射由第一全息图衍射并在光学基板内传播的激光束的一个偏振分量，以衍射另一个偏振分量，从而分离两个偏振分量。通过检测如此分离的偏振分量之间的强度差来检测表示光存储介质的状态的信号。

2. 发明授权

US5754503A Optical device with improved focused error detection and tracing error detection for optical disk drive 失效
标题翻译：具有改进的光盘驱动器的聚焦误差检测和跟踪误差检测的光学装置
公开(公告)号：US5754503A
公开(公告)日：1998-05-19
申请号：US749231
申请日：1996-11-14
申请人： Satoshi Senba , Shinya Hasegawa , Hiroyasu Yoshikawa , Fumihiro Tawa
发明人： Satoshi Senba , Shinya Hasegawa , Hiroyasu Yoshikawa , Fumihiro Tawa
IPC分类号： G11B7/09 , G11B7/135 , G11B7/00
CPC分类号： G11B7/1353 , G11B7/0908 , G11B7/0916
摘要： An optical device for an optical disk drive, for performing focusing error detection and tracking error detection of a laser beam converged on an optical disk. The optical device includes a diffraction grating having first, second, third, and fourth regions for diffracting a reflected beam from the optical disk in different directions. The optical device further includes a first photodetector for detecting a part of the reflected beam diffracted by the first region of the diffraction grating, a second photodetector for detecting a part of the reflected beam diffracted by the second region of the diffraction grating, a third photodetector for detecting a part of the reflected beam diffracted by the third region of the diffraction grating, and a fourth photodetector for detecting a part of the reflected beam diffracted by the fourth region of the diffraction grating. The shape and size of each of the first and second regions of the diffraction grating are optimally controlled to thereby increase a quantity of light incident on the photodetectors for focusing error detection.
摘要翻译：一种用于光盘驱动器的光学装置，用于执行会聚在光盘上的激光束的聚焦误差检测和跟踪误差检测。光学装置包括具有第一，第二，第三和第四区域的衍射光栅，用于沿不同方向衍射来自光盘的反射光束。光学装置还包括第一光电检测器，用于检测由衍射光栅的第一区域衍射的部分反射光束;第二光电检测器，用于检测由衍射光栅的第二区域衍射的部分反射光束;第三光电检测器用于检测由衍射光栅的第三区域衍射的一部分反射光束;以及第四光电检测器，用于检测由衍射光栅的第四区域衍射的部分反射光束。最佳地控制衍射光栅的第一和第二区域的形状和尺寸，从而增加入射到用于聚焦误差检测的光电探测器上的光量。

3. 发明授权

US06243334B1 Information reading and writing device for optical disk 有权
标题翻译：光盘信息读写装置
公开(公告)号：US06243334B1
公开(公告)日：2001-06-05
申请号：US09177561
申请日：1998-10-23
申请人： Shinya Hasegawa , Hiroyasu Yoshikawa
发明人： Shinya Hasegawa , Hiroyasu Yoshikawa
IPC分类号： G11B7135
CPC分类号： G11B7/131 , G11B7/0901 , G11B7/0908 , G11B7/0916 , G11B7/094 , G11B7/123 , G11B7/1353 , G11B7/22
摘要： The present invention relates to an information reading and writing device for an optical signal, and the optical system is simplified by using a diffraction optical element. A semiconductor laser is used as a light source. There is provided an image formation lens for condensing a beam of light and forming an image on an optical disk medium. In an optical path between the semiconductor laser and the image formation lens, there is provided a hologram having a function of the hologram region diffraction optical element for detecting a tracking error signal of the medium and a focus detection error signal. Two optical detecting elements 24a, 24b for detecting the focus error respectively have two divided regions. Under the condition that the medium is in focus, beams of light diffracted in the two hologram regions 23a, 23b for detecting the focus become the convergent beams which are most converged on a dividing line of the respective optical detecting element and in the direction of the optical axis. The beams of light on two optical detecting elements are in a condition of substantial point symmetry with respect to the central axis of the hologram.
摘要翻译：本发明涉及一种用于光信号的信息读写装置，通过使用衍射光学元件来简化光学系统。半导体激光器用作光源。提供了一种用于聚集光束并在光盘介质上形成图像的图像形成透镜。在半导体激光器和图像形成透镜之间的光路中，提供了具有用于检测介质的跟踪误差信号的全息区域衍射光学元件的功能的全息图和焦点检测误差信号。用于检测聚焦误差的两个光学检测元件24a，24b分别具有两个分割区域。在介质聚焦的条件下，在用于检测聚焦的两个全息图区域23a，23b中衍射的光束成为最聚焦在各个光学检测元件的分割线上并沿着该方向的收敛光束光轴。两个光学检测元件上的光束相对于全息图的中心轴处于基本点对称的状态。

4. 发明授权

US5900955A Optical scanning system including two hologram elements 失效
标题翻译：光学扫描系统包括两个全息元件
公开(公告)号：US5900955A
公开(公告)日：1999-05-04
申请号：US861639
申请日：1997-05-22
申请人： Hiroyasu Yoshikawa , Shinya Hasegawa , Satoshi Maeda , Shigeo Kayashima , Fumio Yamagishi
发明人： Hiroyasu Yoshikawa , Shinya Hasegawa , Satoshi Maeda , Shigeo Kayashima , Fumio Yamagishi
IPC分类号： G02B5/32 , G02B5/18 , G02B26/10 , G02B26/12
CPC分类号： G02B5/1876 , G02B26/12
摘要： An optical scanning system includes a laser source, a deflector deflecting a laser beam emitted from the laser source, and at least two hologram elements located between the deflector and an image forming member.
摘要翻译：光学扫描系统包括激光源，偏转从激光源发射的激光束的偏转器和位于偏转器和图像形成部件之间的至少两个全息元件。

5. 发明授权

US08575782B2 Power transmission apparatus, power transmission/reception apparatus, and method of transmitting power 有权
标题翻译：动力传递装置，发送/接收装置以及发送功率的方法
公开(公告)号：US08575782B2
公开(公告)日：2013-11-05
申请号：US12724938
申请日：2010-03-16
申请人： Hiroyasu Yoshikawa
发明人： Hiroyasu Yoshikawa
IPC分类号： H01F38/00
CPC分类号： H02J50/12 , H02J5/005
摘要： A power transmission apparatus includes: a power source; a power transmission coil that transmits electric power supplied from the power source outward as magnetic energy through magnetic resonance; a peak searching unit that searches for a drive frequency at which the magnetic energy transmitted outward has a peak; a peak split detector that detects splitting of the drive frequency at which the magnetic energy transmitted outward has a peak; a selection unit that selects a higher-frequency side frequency among split drive frequencies generated by the splitting; and a drive unit that drives the power transmission coil using the frequency selected by the selection unit.
摘要翻译：电力传输装置包括：电源; 将从电源向外供给的电力通过磁共振作为磁能传递的电力传输线圈; 搜索向外传输的磁能具有峰值的驱动频率的峰值搜索单元; 检测向外传输的磁能具有峰值的驱动频率的分离的峰值分割检测器; 选择单元，其通过分割产生的分割驱动频率中选择较高频侧频率; 以及驱动单元，其使用由所述选择单元选择的频率驱动所述电力传输线圈。

6. 发明申请

US20100244582A1 Power Transfer Apparatus 有权
标题翻译：电力传输装置
公开(公告)号：US20100244582A1
公开(公告)日：2010-09-30
申请号：US12750672
申请日：2010-03-30
申请人： Hiroyasu Yoshikawa
发明人： Hiroyasu Yoshikawa
IPC分类号： H02J17/00
CPC分类号： H02J50/12 , H01F38/14 , H02J5/005 , H02J7/025
摘要： A power transfer apparatus includes: a magnetic resonance coil for transferring magnetic energy by magnetically resonating with an external coil; a power receiving unit for picking up, as electrical power, the magnetic energy that the magnetic resonance coil receives from the external coil; and a magnetic body arranged on a side of the magnetic resonance coil opposite a transfer side of the magnetic energy of the magnetic resonance coil.
摘要翻译：一种电力传送装置，包括：磁共振线圈，用于通过与外部线圈磁共振来传递磁能; 电力接收单元，用于作为电力拾取磁共振线圈从外部线圈接收的磁能; 以及配置在磁共振线圈的与磁共振线圈的磁能的转移侧相反侧的磁体。

7. 发明申请

US20100195179A1 HOLOGRAM REPRODUCING DEVICE AND HOLOGRAM REPRODUCING METHOD 审中-公开
标题翻译： HOLOGRAM复制设备和HOLOGRAM复制方法
公开(公告)号：US20100195179A1
公开(公告)日：2010-08-05
申请号：US12724905
申请日：2010-03-16
申请人： Kazushi Uno , Koichi Tezuka , Hiroyasu Yoshikawa , Yasumasa Iwamura , Yuzuru Yamakage , Satoshi Shimokawa
发明人： Kazushi Uno , Koichi Tezuka , Hiroyasu Yoshikawa , Yasumasa Iwamura , Yuzuru Yamakage , Satoshi Shimokawa
IPC分类号： G03H1/26
CPC分类号： G11B7/00772 , G03H1/22 , G03H1/2286 , G03H2001/2223 , G11B7/08564 , G11B7/1395
摘要： A hologram reproducing device includes a splitter for splitting a reference beam, during reproduction, into a main beam and sub-beams forming incidence directions spatially shifted from the main beam. The hologram reproducing device also includes: an incidence direction variable irradiator for changing the incidence directions of the main beam and the sub-beams; a servo beam detector for detecting a portion of the reproduction beam generated in accordance with the sub-beams; and a beam receiving unit for receiving the main portion of the reproduction beam generated in accordance with the main beam. A reproducer reproduces an image obtained by the beam receiving unit when the main beam coincides with the incidence direction at which the received light of the beam receiving unit becomes equal to or greater than a prescribed level, with the intensity of the reference beam kept uniform, on the basis of the servo beam detection results.
摘要翻译：一种全息图再现装置包括：分离器，用于在再现期间将参考光束分离成主光束，并且形成从主光束空间偏移的入射方向的子光束。全息图再现装置还包括：用于改变主光束和子光束的入射方向的入射方向可变辐射器; 伺服光束检测器，用于检测根据子光束产生的再现光束的一部分; 以及用于接收根据主光束产生的再现光束的主要部分的光束接收单元。当主光束与光束接收单元的接收光变为等于或大于规定水平的入射方向一致时，再现器再现由光束接收单元获得的图像，参考光束的强度保持均匀，在伺服光束检测结果的基础上。

8. 发明授权

US07755819B2 Hologram recording device 有权
标题翻译：全息记录装置
公开(公告)号：US07755819B2
公开(公告)日：2010-07-13
申请号：US12048935
申请日：2008-03-14
申请人： Kazushi Uno , Kouichi Tezuka , Hiroyasu Yoshikawa , Yasumasa Iwamura , Yuzuru Yamakage
发明人： Kazushi Uno , Kouichi Tezuka , Hiroyasu Yoshikawa , Yasumasa Iwamura , Yuzuru Yamakage
IPC分类号： G03H1/10
CPC分类号： G11B7/0065 , G03H1/04 , G03H1/0402 , G03H2222/35 , G03H2222/36 , G03H2225/24 , G11B7/083
摘要： A hologram recorder (A2) includes: a light source (10) for emitting a coherent beam; a spatial light modulator (20) provided with unit areas having a plurality of beam reflection elements (21) to reflect the beam from the light source (10) in a main direction as a signal beam or a cut-off direction; and a signal beam optical system (30, 31) for directing the signal beam to the hologram recording medium (B). The recorder (A2) further includes: a wavefront reshaper (40, 41, 42) for condensing the beams thinned out in the cut-off direction by the beam reflection element (21) of the modulator (20), and reshaping the wavefront of the condensed beams; and a reference beam optical system (50, 51) for directing the beam from the reshaper (40, 41, 42) to the recording medium (B) as a reference beam to be shone in an overlapping manner with the signal beam.
摘要翻译：全息记录器（A2）包括：用于发射相干光束的光源（10）; 设置有具有多个光束反射元件（21）的单元区域的空间光调制器（20），用于在主方向上将来自光源（10）的光束作为信号光束或截止方向反射; 以及用于将信号光束引导到全息图记录介质（B）的信号光束光学系统（30,31）。记录器（A2）还包括：波前整形器（40,41,42），用于通过所述调制器（20）的光束反射元件（21）将从所述截止方向变薄的光束聚集在一起，并且重新形成聚光束; 以及用于将光束从所述整形器（40,41,42）引导到所述记录介质（B）的参考光束光学系统（50,51），作为要与所述信号光束重叠的参照光束照射。

9. 发明申请

US20090279152A1 HOLOGRAM RECORDER 审中-公开
标题翻译： HOLOGRAM记录仪
公开(公告)号：US20090279152A1
公开(公告)日：2009-11-12
申请号：US12506906
申请日：2009-07-21
申请人： Yuzuru Yamakage , Kazushi Uno , Hiroyasu Yoshikawa
发明人： Yuzuru Yamakage , Kazushi Uno , Hiroyasu Yoshikawa
IPC分类号： G03H1/26
CPC分类号： G03H1/0402 , G03H1/16 , G03H2001/0413 , G11B7/083 , G11B7/1374 , G11B2007/13727
摘要： A hologram recording apparatus includes an objective lens (7) for illuminating a hologram recording medium (B) with a recording beam (S) in a manner such that the recording beam overlaps a reference beam, thereby performing multiple recording of holograms at a portion illuminated with the reference beam and the recording beam (S). The objective lens (7) includes at least one rotationally symmetric lens (7A, 7B), and at least one rotationally symmetric lens (7A) is so arranged that the lens optical axis is inclined with respect to the direction (S1) in which the recording beam (S) travels.
摘要翻译：全息记录装置包括用记录光束（S）以记录光束与基准光束重叠的方式照亮全息图记录介质（B）的物镜（7），从而在被照射的部分进行全息图的多次记录具有参考光束和记录光束（S）。物镜（7）包括至少一个旋转对称透镜（7A，7B），并且至少一个旋转对称透镜（7A）被布置成使得透镜光轴相对于其中的透镜光轴记录光束（S）行进。

10. 发明授权

US07518974B2 Recording and reproducing apparatus 失效
标题翻译：记录和再现设备
公开(公告)号：US07518974B2
公开(公告)日：2009-04-14
申请号：US11342835
申请日：2006-01-31
申请人： Yuzuru Yamakage , Toshikazu Kanaoka , Akiyoshi Uchida , Kazushi Uno , Hiroyasu Yoshikawa
发明人： Yuzuru Yamakage , Toshikazu Kanaoka , Akiyoshi Uchida , Kazushi Uno , Hiroyasu Yoshikawa
IPC分类号： G11B7/00
CPC分类号： G11B7/00772 , G11B7/0065 , G11B7/1392
摘要： A recording and reproducing apparatus includes a light source to emit a laser beam, an information light beam irradiation unit to irradiate a medium with an information light beam, a reference light beam irradiation unit to irradiate the medium with a reference light beam so as to form a specific speckle pattern on the medium. The reference light beam irradiation unit comprises a diffusion board provided in the way of a light path through which the laser beam is passed and generating the reference light beam, a rotation controller to rotate the diffusion board, and an identification information detector to detect identification information previously formed on a surface of the diffusion board. The diffusion board comprises a plurality of encode storage regions in which different identification information is formed and a plurality of diffusion pattern generation regions specified by the identification information. A position of the diffusion board is controlled based on the detected identification information such that a desired diffusion pattern generation region comes to a position through which the laser beam is passed while the laser beam is outputted.
摘要翻译：记录和再现装置包括发射激光束的光源，用信息光束照射介质的信息光束照射单元，参考光束照射单元，用参考光束照射介质以形成介质上的特定斑点图案。参考光束照射单元包括设置在激光束通过的光路的方式并产生参考光束的扩散板，旋转扩散板的旋转控制器和识别信息检测器，以检测识别信息预先形成在扩散板的表面上。扩散板包括形成有不同识别信息的多个编码存储区域和由识别信息指定的多个扩散图案生成区域。基于检测到的识别信息来控制扩散板的位置，使得期望的扩散图案生成区域到达激光束输出的激光束通过的位置。

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