专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

21. 发明授权

US07426169B2 Optical pickup apparatus and optical pickup method 失效
标题翻译：光学拾取装置和光学拾取方法
公开(公告)号：US07426169B2
公开(公告)日：2008-09-16
申请号：US10937456
申请日：2004-09-09
申请人： Shigeru Ohuchida
发明人： Shigeru Ohuchida
IPC分类号： G11B7/00
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。

22. 发明申请

US20070147218A1 Optical element, optical pickup unit, and optical disk drive unit 失效
公开(公告)号：US20070147218A1
公开(公告)日：2007-06-28
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
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 dichroic 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 dichroic element, the phase plate, and the objective lens.

23. 发明授权

US07197003B2 Optical element, optical pickup unit, and optical disk drive unit 有权
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：US07197003B2
公开(公告)日：2007-03-27
申请号：US11373234
申请日：2006-03-13
申请人： Hideaki Hirai , Shigeru Ohuchida
发明人： Hideaki Hirai , Shigeru Ohuchida
IPC分类号： G11B7/00
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 dichroic 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 dichroic element, the phase plate, and the objective lens.
摘要翻译：光拾取单元分别包括第一和第二波长的第一和第二光源，二向色元件，相位板和物镜。选择第一和第二光源中的一个，使得通过经由二向色元件，相位板和第二光源将从第一和第二光源中选择的一个发射的光束会聚在光学记录介质上来执行信息记录或再现物镜。

24. 发明申请

US20050088948A1 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：US20050088948A1
公开(公告)日：2005-04-28
申请号：US10995318
申请日：2004-11-24
申请人： Shigeru Ohuchida
发明人： Shigeru Ohuchida
IPC分类号： G02B5/32 , G11B7/00 , G11B7/12 , G11B7/125 , G11B7/13 , 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。

25. 发明申请

US20060158977A1 Optical element, optical pickup unit, and optical disk drive unit 有权
公开(公告)号：US20060158977A1
公开(公告)日：2006-07-20
申请号：US11373234
申请日：2006-03-13
申请人： Hideaki Hirai , Shigeru Ohuchida
发明人： Hideaki Hirai , Shigeru Ohuchida
IPC分类号： G11B7/00
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 dichroic 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 dichroic element, the phase plate, and the objective lens.

26. 发明授权

US06937554B2 Optical pickup apparatus having an improved holographic unit, and optical disk drive including the same 失效
公开(公告)号：US06937554B2
公开(公告)日：2005-08-30
申请号：US09922746
申请日：2001-08-07
申请人： Shigeru Ohuchida
发明人： Shigeru Ohuchida
IPC分类号： G02B5/32 , G11B7/00 , G11B7/12 , G11B7/125 , G11B7/13 , 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.

27. 发明申请

US20050036431A1 Optical pickup apparatus and optical pickup method 失效
标题翻译：光学拾取装置和光学拾取方法
公开(公告)号：US20050036431A1
公开(公告)日：2005-02-17
申请号：US10937456
申请日：2004-09-09
申请人： Shigeru Ohuchida
发明人： Shigeru Ohuchida
IPC分类号： G02B5/28 , G02B5/18 , G02B5/32 , G11B7/00 , G11B7/125 , G11B7/135
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。

28. 发明授权

US5231620A Magneto-optical recording/reproducing apparatus with light beam splitting means 失效
标题翻译：具有光束分离装置的磁光记录/再现装置
公开(公告)号：US5231620A
公开(公告)日：1993-07-27
申请号：US704782
申请日：1991-05-23
申请人： Shigeru Ohuchida
发明人： Shigeru Ohuchida
IPC分类号： G11B11/10 , G11B7/13 , G11B7/135 , G11B11/105
CPC分类号： G11B7/131 , G11B11/10543 , G11B11/10576 , G11B7/1353
摘要： In an apparatus for recording and reproducing optical information, a light beam splitter is disposed on an optical path between a laser beam source and an optical information recording medium. The light beam splitter has a three-beam forming diffraction grating on one face of this light beam splitter on a light-emitting side thereof. The light beam splitter also has a light branching diffraction grating on another face thereof. A light beam emitted from the laser beam source is divided into three beams by the three-beam forming diffraction grating. The light branching diffraction grating is used to branch light reflected from the optical information recording medium. A polarizing/separating diffraction grating is formed in the light beam splitter on the same plane as the three-beam forming diffraction grating. The polarizing/separating diffraction grating is used to polarize and separate a light beam branched by the light branching diffraction grating.
摘要翻译：在用于记录和再现光学信息的装置中，光束分离器设置在激光束源和光学信息记录介质之间的光路上。光束分离器在其发光侧的该光束分离器的一个面上具有三光束形成衍射光栅。光束分离器还在其另一个面上具有光分支衍射光栅。从激光束源发射的光束通过三光束形成衍射光栅被分成三个光束。光分支衍射光栅用于分支从光学信息记录介质反射的光。在与三光束形成衍射光栅相同的平面上的光束分离器中形成偏振/分离衍射光栅。偏振/分离衍射光栅用于使由光分支衍射光栅分支的光束偏振和分离。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式