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11. 发明授权

US07177258B2 Optical pickup apparatus, optical data recording/reproducing apparatus, and optical data recording/reproducing method 有权
标题翻译：光学拾取装置，光学数据记录/再现装置和光学数据记录/再现方法
公开(公告)号：US07177258B2
公开(公告)日：2007-02-13
申请号：US10971033
申请日：2004-10-25
申请人： Shigeru Ohuchida , Hiroyoshi Funato
发明人： Shigeru Ohuchida , Hiroyoshi Funato
IPC分类号： G11B7/135
CPC分类号： G11B7/1263 , G11B7/123 , G11B7/1275 , G11B7/131 , G11B7/1353 , G11B7/1362 , G11B7/1381 , G11B7/13922 , G11B2007/0006
摘要： An optical pickup apparatus used in an optical data recording/reproducing apparatus for reading/reproducing data on an optical recording medium, including a light source, a diffracting device configured to transmit a light beam and to diffract a light beam reflected from the optical recording medium, an optical device having a reflecting portion and a transmitting portion configured to reflect one part of the light beam emitted from the light source and to transmit another part of the light beam to the optical recording medium and from the optical recording medium, and a photodetecting device to detect the light beam from the optical recording medium for signal light detection, and the light beam reflected by the reflecting portion of the optical device for monitor light detection of the light source.
摘要翻译：一种光学拾取装置，用于光学数据记录/再现装置中，用于在包括光源的光学记录介质上读取/再现数据，构造成透射光束并衍射从光学记录介质反射的光束的衍射装置，具有反射部分和透射部分的光学器件，其被配置为反射从光源发射的光束的一部分，并将光束的另一部分传输到光学记录介质和光学记录介质，以及光电检测用于检测来自用于信号光检测的光学记录介质的光束的装置，以及由光学装置的反射部分反射的光束，用于光源的监视光检测。

12. 发明授权

US5107359A Optical wavelength-divison multi/demultiplexer 失效
标题翻译：光波分复用/解复用器
公开(公告)号：US5107359A
公开(公告)日：1992-04-21
申请号：US440275
申请日：1989-11-22
申请人： Shigeru Ohuchida
发明人： Shigeru Ohuchida
IPC分类号： G02B6/293 , G02B6/34
CPC分类号： G02B6/29311 , G02B6/2938
摘要： An optical wavelength-division multi/demultiplexer for use in an optical multiplex communication, comprises a transparent substrate having opposite sides. A transmission off-axis diffraction grating is formed on one side of the substrate, for passing light incident thereon while diffracting and converging the same. A light reflecting element such as a transmission off-axis diffraction grating or flat specular reflection surface is provided on the other side of the substrate, for reflecting the light diffracted by the transmission off-axis diffraction grating toward the transmission off-axis diffraction grating.
摘要翻译：用于光学多路复用通信的光波分复用/解复用器包括具有相对侧的透明基板。在基板的一侧上形成透射离轴衍射光栅，用于使在其上入射的光同时衍射和会聚。在基板的另一侧设置有诸如透射离轴衍射光栅或平面镜面反射面的光反射元件，用于将由透射离轴衍射光栅衍射的光反射到发射离轴衍射光栅。

13. 发明授权

US06876621B2 Optical apparatus for recording/reproducing and reading/reproducing data on an optical recording medium, and method for using same 失效
标题翻译：用于在光学记录介质上记录/再现和再现数据的光学装置及其使用方法
公开(公告)号：US06876621B2
公开(公告)日：2005-04-05
申请号：US09800586
申请日：2001-03-08
申请人： Shigeru Ohuchida , Hiroyoshi Funato
发明人： Shigeru Ohuchida , Hiroyoshi Funato
IPC分类号： G02B5/18 , G02B5/30 , G02B5/32 , G11B7/00 , G11B7/125 , G11B7/13 , G11B7/135
CPC分类号： G11B7/1263 , G11B7/123 , G11B7/1275 , G11B7/131 , G11B7/1353 , G11B7/1362 , G11B7/1381 , G11B7/13922 , G11B2007/0006
摘要： An optical pickup apparatus used in an optical data recording/reproducing apparatus for reading/reproducing data on an optical recording medium, including a light source, a diffracting device configured to transmit a light beam and to diffract a light beam reflected from the optical recording medium, an optical device having a reflecting portion and a transmitting portion configured to reflect one part of the light beam emitted from the light source and to transmit another part of the light beam to the optical recording medium and from the optical recording medium, and a photodetecting device to detect the light beam from the optical recording medium for signal light detection, and the light beam reflected by the reflecting portion of the optical device for monitor light detection of the light source.
摘要翻译：一种光学拾取装置，用于光学数据记录/再现装置中，用于在包括光源的光学记录介质上读取/再现数据，构造成透射光束并衍射从光学记录介质反射的光束的衍射装置，具有反射部分和透射部分的光学器件，其被配置为反射从光源发射的光束的一部分，并将光束的另一部分传输到光学记录介质和光学记录介质，以及光电检测用于检测来自用于信号光检测的光学记录介质的光束的装置，以及由光学装置的反射部分反射的光束，用于光源的监视光检测。

14. 发明申请

US20050058051A1 Optical pickup apparatus, optical data recording/reproducing apparatus, and optical data recording/reproducing method 有权
标题翻译：光学拾取装置，光学数据记录/再现装置和光学数据记录/再现方法
公开(公告)号：US20050058051A1
公开(公告)日：2005-03-17
申请号：US10971033
申请日：2004-10-25
申请人： Shigeru Ohuchida , Hiroyoshi Funato
发明人： Shigeru Ohuchida , Hiroyoshi Funato
IPC分类号： G02B5/18 , G02B5/30 , G02B5/32 , G11B7/00 , G11B7/125 , G11B7/13 , G11B7/135
CPC分类号： G11B7/1263 , G11B7/123 , G11B7/1275 , G11B7/131 , G11B7/1353 , G11B7/1362 , G11B7/1381 , G11B7/13922 , G11B2007/0006
摘要： An optical pickup apparatus used in an optical data recording/reproducing apparatus for reading/reproducing data on an optical recording medium, including a light source, a diffracting device configured to transmit a light beam and to diffract a light beam reflected from the optical recording medium, an optical device having a reflecting portion and a transmitting portion configured to reflect one part of the light beam emitted from the light source and to transmit another part of the light beam to the optical recording medium and from the optical recording medium, and a photodetecting device to detect the light beam from the optical recording medium for signal light detection, and the light beam reflected by the reflecting portion of the optical device for monitor light detection of the light source.
摘要翻译：一种光学拾取装置，用于光学数据记录/再现装置中，用于在包括光源的光学记录介质上读取/再现数据，构造成透射光束并衍射从光学记录介质反射的光束的衍射装置，具有反射部分和透射部分的光学器件，其被配置为反射从光源发射的光束的一部分，并将光束的另一部分传输到光学记录介质和光学记录介质，以及光电检测用于检测来自用于信号光检测的光学记录介质的光束的装置，以及由光学装置的反射部分反射的光束，用于光源的监视光检测。

15. 发明授权

US06810001B2 Optical pickup apparatus and optical pickup method adapted for selectively using laser light of different wavelengths 失效
标题翻译：适于选择性地使用不同波长的激光的光拾取装置和光拾取方法
公开(公告)号：US06810001B2
公开(公告)日：2004-10-26
申请号：US09864569
申请日：2001-05-24
申请人： Shigeru Ohuchida
发明人： Shigeru Ohuchida
IPC分类号： G11B700
CPC分类号： G11B7/126 , G11B7/127 , G11B7/1353 , G11B2007/0006
摘要： An optical pickup apparatus for reading/reproducing data on an optical recording medium, includes a plurality of laser diodes configured to emit laser light of different wavelengths respectively, a photodetection device configured to detect each laser light, a diffraction type-optical device configured to transmit each laser light from the plurality of laser diodes to the optical recording medium, and to diffract the light reflected from the optical recording medium to the photodetection device, and wherein the diffraction type-optical device includes a plurality of reflecting type-diffraction elements configured to reflect and diffract each laser light of a corresponding wavelength in the laser light from the plurality of light diodes, to the photodetection device so that the photodetection device can detect each laser light of the corresponding wavelength for monitoring each of the laser light, and a suppression setting device configured to set each of the plurality of reflecting type-diffraction elements to suppress laser light other than the laser light of the corresponding wavelength to the photodetection device.
摘要翻译：一种用于在光学记录介质上读取/再现数据的光拾取装置，包括分别发射不同波长的激光的多个激光二极管，被配置为检测每个激光的光检测装置，被配置为传输的衍射型光学装置每个激光从多个激光二极管到光记录介质，并将从光记录介质反射的光衍射到光检测器件，其中衍射型光学器件包括多个反射型衍射元件，其被配置为将来自多个发光二极管的激光中的相应波长的每个激光的反射和衍射到光检测装置，使得光检测装置可以检测相应波长的每个激光以监测每个激光，并抑制设置装置，被配置为设置多个反射类型中的每一个 e衍射元件，以抑制除了对于光检测装置的相应波长的激光之外的激光。

16. 发明授权

US07307938B2 Optical pickup apparatus having an improved holographic unit, and optical disk drive including the same 失效
标题翻译：具有改进的全息单元的光学拾取装置和包括其的光盘驱动器
公开(公告)号：US07307938B2
公开(公告)日：2007-12-11
申请号：US10995318
申请日：2004-11-24
申请人： Shigeru Ohuchida
发明人： Shigeru Ohuchida
IPC分类号： G11B7/135
CPC分类号： G11B7/1353 , G02B5/32 , G11B7/123 , G11B7/1275 , G11B7/131 , G11B7/1362 , G11B2007/0006
摘要： In an optical pickup apparatus of the present invention, either a first laser diode emits a laser beam having a first wavelength or a second laser diode emits a laser beam having a second wavelength. An optical system focuses one of the two laser beams onto a recording surface of an optical recording medium. A photodetector unit receives reflection beams, which are reflected from the recording medium, to generate detection signals from the received reflection beams. A holographic unit has a first hologram suited to the first laser diode and a second hologram suited to the second laser diode, the first hologram provided to diffract a reflection beam of the laser beam of the first laser diode to the photodetector unit, and the second hologram provided to diffract a reflection beam of the laser beam of the second laser diode to the photodetector unit.
摘要翻译：在本发明的光拾取装置中，第一激光二极管发射具有第一波长的激光束或第二激光二极管发射具有第二波长的激光束。光学系统将两个激光束中的一个聚焦到光学记录介质的记录表面上。光电检测器单元接收从记录介质反射的反射光束，以从接收到的反射光束产生检测信号。全息单元具有适合于第一激光二极管的第一全息图和适于第二激光二极管的第二全息图，第一全息图用于将第一激光二极管的激光束的反射光束衍射到光电检测器单元，提供的全息图将第二激光二极管的激光束的反射光束衍射到光电检测器单元。

17. 发明授权

US5684779A Optical head with forward and reflected light beams propagating through a dual diffraction grating device along a common path 失效
$Optical head with forward and reflected light beams propagating through a dual diffraction grating device along a common path$
标题翻译：具有正向和反射光束的光头，沿着公共路径传播通过双衍射光栅装置
公开(公告)号：US5684779A
公开(公告)日：1997-11-04
申请号：US585437
申请日：1996-01-11
申请人： Shigeru Ohuchida , Hiroyoshi Funato
发明人： Shigeru Ohuchida , Hiroyoshi Funato
IPC分类号： G11B7/09 , G11B7/12 , G11B7/135
CPC分类号： G11B7/1356 , G11B7/123 , G11B7/1353 , G11B7/0912
摘要： An optical head which records data onto an optical data recording medium and reproduces the data therefrom includes a laser light source, a collimator lens, an objective lens, a light splitting device arranged between the laser light source and the objective lens, for splitting the emitted light from the laser light and a reflected light from the optical data recording medium. A diffraction grating is provided to which only the reflected light split at the light splitting device is incident to, and which leads the reflected light split at the optical element onto a photo-detector. Thereby, an optical head of high effectiveness in utilization of light and low cost can be obtained.
摘要翻译：将数据记录到光学数据记录介质上并再现其数据的光学头包括激光光源，准直透镜，物镜，配置在激光光源和物镜之间的分光装置，用于将发射来自激光的光和来自光学数据记录介质的反射光。提供衍射光栅，仅在分光装置处分离的反射光入射到该衍射光栅上，并且将衍射光栅引导到光检测器处。由此，可以获得光利用效率低，成本低的光头。

18. 发明授权

US5428588A Optical head 失效
标题翻译：光头
公开(公告)号：US5428588A
公开(公告)日：1995-06-27
申请号：US120835
申请日：1993-09-15
申请人： Shigeru Ohuchida
发明人： Shigeru Ohuchida
IPC分类号： G11B7/09 , G11B7/135 , G11B7/12
CPC分类号： G11B7/1356 , G11B7/094
摘要： The present invention relates to an optical head for recording, reproducing and erasing data on an optical data recording medium. The optical head has a fixed optical system having a laser optical source for emitting a light and a signal detecting optical system for detecting an error signal. A movable optical system having a beam splitter provided with a prism boundary face and having an objective at a position thereof opposing a surface of the optical data recording medium for receiving the emitted light through the beam splitter and focusing the received light onto the surface of the optical data recording medium as an optical spot. The beam splitter has, at the prism boundary face thereof, a polarizing film for transmitting one portion of the emitted light from the laser light source. The beam splitter has, at one side face thereof, reflective face for reflecting one portion of or all of the transmitted light through the polarizing film, and has, at another side face thereof, a light receiving element thereof for receiving the reflected light from the reflective face and one portion of said reflected light from the surface of the optical data recording medium.
摘要翻译：本发明涉及一种用于在光学数据记录介质上记录，再现和擦除数据的光学头。光头具有固定光学系统，其具有用于发光的激光光源和用于检测误差信号的信号检测光学系统。一种可移动光学系统，其具有设置有棱镜边界面的分束器，并且在与光学数据记录介质的表面相对的位置处具有物镜，用于接收通过分束器的发射光，并将接收的光聚焦到光学数据记录介质作为光点。分束器在其棱镜边界面处具有用于透射来自激光源的一部分发射光的偏振膜。分束器在其一个侧面处具有用于反射透射光的一部分或全部通过偏振膜的反射面，并且在其另一侧面具有用于接收来自偏振膜的反射光的光接收元件反射面和来自光学数据记录介质表面的所述反射光的一部分。

19. 发明授权

US5243583A Optical pickup device with dual grating element 失效
标题翻译：具有双光栅元件的光学拾取装置
公开(公告)号：US5243583A
公开(公告)日：1993-09-07
申请号：US504341
申请日：1990-04-03
申请人： Shigeru Ohuchida , Yuji Sumi
发明人： Shigeru Ohuchida , Yuji Sumi
IPC分类号： G11B7/135
CPC分类号： G11B7/1353
摘要： In an apparatus for recording and reproducing optical information, light emitted from a laser beam source is irradiated to an optical information recording medium to record the optical information and the light reflected from the recording medium is guided to a signal detecting optical system to detect tracking and focusing error signals and a reproducing signal. The apparatus comprises a dual grading arranged through a detecting lens on an optical path on which the light reflected from the recording medium is guided to the optical system, the dual grating having diffraction gratings formed at an equal pitch on the front and rear faces of a substrate, a refractive index of the substrate being greater than the refractive indexes of the diffraction gratings; and a photodetector for detecting light transmitted through the dual grating. The dual grating may have diffraction gratings respectively formed at equal and irregular pitches on both faces of a substrate. The dual grating may have a front face grating formed on a first incident side of the reflected light and a rear face grating formed on the side of a substrate opposite to the first incident side; the front face grating having a pitch smaller than that of the rear face grating; an incident angle of the reflected light with respect to the front face grating being set to be greater than a Bragg angle with respect to the front face grating.
摘要翻译：在用于记录和再现光学信息的设备中，将从激光束源发出的光照射到光学信息记录介质以记录光学信息，并将从记录介质反射的光引导到信号检测光学系统以检测跟踪，聚焦误差信号和再现信号。该装置包括通过检测透镜布置的双重分级，光学路径上的从记录介质反射的光被引导到光学系统，双光栅具有衍射光栅，该衍射光栅以等间距在前后表面上形成衬底，所述衬底的折射率大于所述衍射光栅的折射率; 以及用于检测透过双光栅的光的光检测器。双光栅可以具有分别在衬底的两个表面上以相等且不规则的间距形成的衍射光栅。双光栅可以具有形成在反射光的第一入射侧的前面光栅和形成在与第一入射侧相反的基板侧的后面光栅; 所述前面光栅的间距小于所述后面光栅的间距; 反射光相对于前面光栅的入射角被设定为大于相对于前面光栅的布拉格角。

20. 发明授权

US07457222B2 Optical element, optical pickup unit, and optical disk drive unit 失效
标题翻译：光学元件，光学拾取单元和光盘驱动单元
公开(公告)号：US07457222B2
公开(公告)日：2008-11-25
申请号：US11707010
申请日：2007-02-16
申请人： Hideaki Hirai , Shigeru Ohuchida
发明人： Hideaki Hirai , Shigeru Ohuchida
IPC分类号： G11B7/00 , G02B27/14
CPC分类号： G11B7/1356 , G11B7/123 , G11B7/127 , G11B7/1359 , G11B7/1362 , G11B7/1365 , G11B2007/0006
摘要： An optical pickup unit includes first and second light sources of first and second wavelengths, respectively, a diachronic element, a phase plate, and an objective lens. One of the first and second light sources is selected so that information recording or reproduction is performed by converging a light beam emitted from the selected one of the first and second light sources on an optical recording medium via the diachronic element, the phase plate, and the objective lens.
摘要翻译：光学拾取单元包括分别具有第一和第二波长的第一和第二光源，时钟元件，相位板和物镜。选择第一和第二光源中的一个，使得信息记录或再现是通过将来自第一和第二光源中选择的一个发射的光束经由电子元件，相位板和物镜。

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