公开(公告)号：US08570845B2

公开(公告)日：2013-10-29

申请号：US13635503

申请日：2011-03-18

申请人： Hideki Nakata ,  Hidenori Wada ,  Masahito Nakao

发明人： Hideki Nakata ,  Hidenori Wada ,  Masahito Nakao

IPC分类号： G11B7/12

CPC分类号： G11B7/1381 ,  G11B7/0909 ,  G11B7/1275 ,  G11B7/131 ,  G11B7/1384 ,  G11B2007/0013

摘要： There are provided an optical head and an optical information device capable of downsizing the optical head, and capable of improving the qualities of a focus error signal, a tracking error signal, and a reproduction signal. A light detector (120) includes a light-receiving unit (121) for receiving a reflected light beam from an optical disc, and a package (125) for covering the light-receiving unit (121). The package (125) has a plurality of light guides (124) formed on a light-receiving surface on the light beam incident side of the light-receiving unit (121), and for guiding a reflected light beam to the light-receiving unit (121), and a light shield (114) for shielding a region except for a plurality of the light guides (124) from light.

摘要翻译： 提供了一种能够使光学头小型化并且能够提高聚焦误差信号，跟踪误差信号和再现信号的质量的光学头和光学信息装置。 光检测器（120）包括用于接收来自光盘的反射光束的光接收单元（121）和用于覆盖光接收单元（121）的封装（125）。 该封装体（125）具有形成在受光单元（121）的光束入射侧的受光面上的多个导光体（124），用于将反射光束导向光接收部 （121），以及用于屏蔽除了多个光导（124）之外的区域的光的遮光罩（114）。

公开(公告)号：US20130010584A1

公开(公告)日：2013-01-10

申请号：US13635503

申请日：2011-03-18

申请人： Hideki Nakata ,  Hidenori Wada ,  Masahito Nakao

发明人： Hideki Nakata ,  Hidenori Wada ,  Masahito Nakao

IPC分类号： G11B7/135 ,  G11B7/1395 ,  G11B7/13 ,  G11B7/1374 ,  G11B7/1378

CPC分类号： G11B7/1381 ,  G11B7/0909 ,  G11B7/1275 ,  G11B7/131 ,  G11B7/1384 ,  G11B2007/0013

摘要： There are provided an optical head and an optical information device capable of downsizing the optical head, and capable of improving the qualities of a focus error signal, a tracking error signal, and a reproduction signal. A light detector (120) includes a light-receiving unit (121) for receiving a reflected light beam from an optical disc, and a package (125) for covering the light-receiving unit (121). The package (125) has a plurality of light guides (124) formed on a light-receiving surface on the light beam incident side of the light-receiving unit (121), and for guiding a reflected light beam to the light-receiving unit (121), and a light shield (114) for shielding a region except for a plurality of the light guides (124) from light.

摘要翻译： 提供了一种能够使光学头小型化并且能够提高聚焦误差信号，跟踪误差信号和再现信号的质量的光学头和光学信息装置。 光检测器（120）包括用于接收来自光盘的反射光束的光接收单元（121）和用于覆盖光接收单元（121）的封装（125）。 该封装体（125）具有形成在受光单元（121）的光束入射侧的受光面上的多个导光体（124），用于将反射光束导向光接收部 （121），以及用于屏蔽除了多个光导（124）之外的区域的光的遮光罩（114）。

公开(公告)号：US20120147726A1

公开(公告)日：2012-06-14

申请号：US13391110

申请日：2011-06-15

申请人： Hideki Nakata ,  Hidenori Wada

发明人： Hideki Nakata ,  Hidenori Wada

IPC分类号： G11B7/1374 ,  G11B21/02

CPC分类号： G11B7/131 ,  G11B2007/0013

摘要： Provided are an optical head and an optical information device capable of inhibiting the temperature rise of a photodetector. An optical head (10) includes a semiconductor laser (101) which emits a luminous flux, an objective lens (105) which focuses the luminous flux emitted from the semiconductor laser (101) on the optical disk (21), and a photodetector (120) which detects the luminous flux reflected by the optical disk (21). The photodetector (120) includes a light receiving part (123) which receives the luminous flux reflected by the optical disk (21), a package (125) which covers the light receiving part (123), and a heat transfer adhesion layer (124) disposed between the package (125) and the light receiving part (123). The heat transfer adhesion layer (124) is formed in a region that is on the light receiving part (123) and includes a light path through which the luminous flux reflected by the optical disk (21) passes.

摘要翻译： 提供了能够抑制光电检测器的温度上升的光学头和光学信息装置。 光头（10）包括发射光束的半导体激光器（101），将从半导体激光器（101）发射的光束聚焦在光盘（21）上的物镜（105）和光电检测器 120），其检测由光盘（21）反射的光束。 光电检测器（120）包括：光接收部分（123），其接收由光盘（21）反射的光束;覆盖光接收部分（123）的封装（125）;以及传热粘附层 ）设置在所述封装（125）和所述光接收部（123）之间。 传热粘附层（124）形成在光接收部分（123）上的区域中，并且包括由光盘（21）反射的光束通过的光路。

公开(公告)号：US08488431B2

公开(公告)日：2013-07-16

申请号：US13391110

申请日：2011-06-15

申请人： Hideki Nakata ,  Hidenori Wada

发明人： Hideki Nakata ,  Hidenori Wada

IPC分类号： G11B7/00

CPC分类号： G11B7/131 ,  G11B2007/0013

摘要： Provided are an optical head and an optical information device capable of inhibiting the temperature rise of a photodetector. An optical head (10) includes a semiconductor laser (101) which emits a luminous flux, an objective lens (105) which focuses the luminous flux emitted from the semiconductor laser (101) on the optical disk (21), and a photodetector (120) which detects the luminous flux reflected by the optical disk (21). The photodetector (120) includes a light receiving part (123) which receives the luminous flux reflected by the optical disk (21), a package (125) which covers the light receiving part (123), and a heat transfer adhesion layer (124) disposed between the package (125) and the light receiving part (123). The heat transfer adhesion layer (124) is formed in a region that is on the light receiving part (123) and includes a light path through which the luminous flux reflected by the optical disk (21) passes.

摘要翻译： 提供了能够抑制光电检测器的温度上升的光学头和光学信息装置。 光头（10）包括发射光束的半导体激光器（101），将从半导体激光器（101）发射的光束聚焦在光盘（21）上的物镜（105）和光电检测器 120），其检测由光盘（21）反射的光束。 光电检测器（120）包括：光接收部分（123），其接收由光盘（21）反射的光束;覆盖光接收部分（123）的封装（125）;以及传热粘附层 ）设置在所述封装（125）和所述光接收部（123）之间。 传热粘附层（124）形成在光接收部分（123）上的区域中，并且包括由光盘（21）反射的光束通过的光路。

公开(公告)号：US09074030B2

公开(公告)日：2015-07-07

申请号：US13807530

申请日：2011-06-29

申请人： Toshihiro Takaai ,  Hidenori Wada ,  Shinichi Fujino

发明人： Toshihiro Takaai ,  Hidenori Wada ,  Shinichi Fujino

IPC分类号： C08F20/00 ,  C08J9/20 ,  A61L15/24 ,  A61L15/60 ,  C08F220/06 ,  C08J3/24 ,  C08J9/36 ,  C08F2/01

CPC分类号： C08J9/122 ,  A61L15/24 ,  A61L15/60 ,  C08F2/01 ,  C08F20/00 ,  C08F220/06 ,  C08J3/245 ,  C08J9/20 ,  C08J9/36 ,  C08J2203/06 ,  C08J2205/05 ,  C08J2333/02 ,  C08J2335/02 ,  Y10T428/2982 ,  C08L33/02 ,  C08F2222/1013

摘要： Provided is a method for producing a water absorbent resin, which promotes the formation of interconnected voids (continuous gas bubbles) in a foamed polymer (foam-like water absorbent resin) by a more convenient method, and produces with high efficiency a water absorbent resin which exhibits a high water absorption rate even when stepped into a sheet form or a powder form in hygiene articles and the like. Disclosed is a a method for producing a polyacrylic acid-type water absorbent resin, comprising (A) a step of obtaining an aqueous solution of acrylic acid-type monomers containing gas bubbles dispersed therein; (B) a step of polymerizing the aqueous monomer solution and thereby obtaining a foamed polymer; and (C) a step of heating and drying the foamed polymer, wherein gas bubbles are incorporated such that the volumetric expansion factor defined by the following formula (1); [Formula 1] Volumetric expansion factor=(Volume of aqueous monomer solution after gas bubble dispersion)/(volume of aqueous mononer solution before gas bubble dispersion)  Formula (1); exceeds 1.1 times, and the aqueous monomer solution having a monomer concentration defined by the following formula (2); [Formula 2] Monomer concentration [wt %]=(Weight of a monomer)/{(weight of a monomer)+(weight of solvent)}×100   Formula (2); of 40% by weight or greater is boiling polymerized at a temperature of 100° C. or higher.

摘要翻译： 提供一种通过更方便的方法促进发泡聚合物（泡沫状吸水性树脂）中形成互连空隙（连续气泡）的吸水性树脂的制造方法，高效率地制造吸水性树脂 即使在卫生用品等中成为片状或粉末状时，也显示出高的吸水率。 本发明提供一种聚丙烯酸型吸水性树脂的制造方法，其特征在于，包括：（A）获得含有分散在其中的气泡的丙烯酸型单体的水溶液的工序; （B）使单体水溶液聚合，得到发泡聚合物的工序; 和（C）加热和干燥发泡聚合物的步骤，其中加入气泡，使得由下式（1）定义的体积膨胀系数; [式1]体积膨胀系数=（气泡分散后的单体水溶液的体积）/（气泡分散前的单体溶液的体积）式（1） 超过1.1倍，单体浓度由下式（2）定义的单体水溶液; [式2]单体浓度[wt％] =（单体重量）/ {（单体重量）+（溶剂重量）}×100式（2） 为40重量％以上时，在100℃以上的温度下进行沸腾聚合。

公开(公告)号：US20110122745A1

公开(公告)日：2011-05-26

申请号：US13014045

申请日：2011-01-26

申请人： Yoshiaki KOMMA ,  Kanji Wakabayashi ,  Kousei Sano ,  Toshiyasu Tanaka ,  Keiichi Matsuzaki ,  Hidenori Wada

发明人： Yoshiaki KOMMA ,  Kanji Wakabayashi ,  Kousei Sano ,  Toshiyasu Tanaka ,  Keiichi Matsuzaki ,  Hidenori Wada

IPC分类号： G11B7/09

CPC分类号： G11B7/1374 ,  G11B2007/0006

摘要： An objective lens unit according to the present invention includes a first objective lens 41; and a first lens holder 2 for supporting the first objective lens 41. The first lens holder 2 is formed of a material which transmits ultraviolet. Preferably, the first lens holder 2 includes a through-hole, having first and second openings 2a and 2b, through which light incident on the first objective lens 41 passes, and an opening limiting section 3 provided along a circumferential direction of the through-hole and projecting toward a central axis of the through-hole. The first objective lens 41 is supported so as to block the first opening 2b. The opening limiting section 3 guides light incident thereon from the second opening 2a in a direction away from an optical axis of the first objective lens.

摘要翻译： 根据本发明的物镜单元包括第一物镜41; 以及用于支撑第一物镜41的第一透镜保持器2.第一透镜保持器2由透射紫外线的材料形成。 优选地，第一透镜保持件2包括通孔，具有入射在第一物镜41上的光通过的第一和第二开口2a和2b以及沿着通孔的周向设置的开口限制部3 并朝向通孔的中心轴突出。 第一物镜41被支撑以阻挡第一开口2b。 开口限制部3在远离第一物镜的光轴的方向上引导从第二开口2a入射的光。

公开(公告)号：US07813251B2

公开(公告)日：2010-10-12

申请号：US11985585

申请日：2007-11-16

申请人： Yoshiaki Komma ,  Hidenori Wada

发明人： Yoshiaki Komma ,  Hidenori Wada

IPC分类号： G11B7/00

CPC分类号： G11B7/1353 ,  G11B7/0948 ,  G11B7/1275 ,  G11B7/1356 ,  G11B7/1374 ,  G11B7/1376 ,  G11B7/1378 ,  G11B7/13925 ,  G11B7/13927 ,  G11B2007/0006

摘要： Providing an objective lens with a large numerical aperture (NA), the present invention records or plays conventional optical disks such as CDs and DVDs at high light usage efficiency, using an optical head capable of recording or reproducing high-density optical disks. A diffraction optical element (8) is disposed in a light path of a first light beam of a first wavelength λ1 (400 nm to 415 nm) and a second light beam of a second wavelength λ2 (650 nm to 680 nm). And, the present invention principally emits 5th order diffracted light with respect to the first light beam, and principally emits 3rd order diffracted light with respect to the second light beam, from the diffraction optical element (8). Thus, a high diffraction efficiency of substantially 100% can be obtained with respect to both wavelengths.

摘要翻译： 提供具有大数值孔径（NA）的物镜，本发明使用能够记录或再现高密度光盘的光头记录或播放诸如CD和DVD的常规光盘，具有高光使用效率。 衍射光学元件（8）设置在第一波长λ1（400nm〜415nm）的第一光束和第二波长λ2（650nm〜680nm）的第二光束的光路中。 并且，本发明主要从衍射光学元件（8）发射相对于第一光束的5级衍射光，并且主要相对于第二光束发射3阶衍射光。 因此，可以获得相对于两个波长的基本上100％的高衍射效率。

公开(公告)号：US20090213717A1

公开(公告)日：2009-08-27

申请号：US11571327

申请日：2006-04-27

申请人： Keiichi Matsuzaki ,  Hideki Hayashi ,  Hidenori Wada ,  Kanji Wakabayashi

发明人： Keiichi Matsuzaki ,  Hideki Hayashi ,  Hidenori Wada ,  Kanji Wakabayashi

IPC分类号： G11B7/135

CPC分类号： G11B7/22 ,  G11B7/082 ,  G11B2007/0006

摘要： A method of adjusting the tilt of objective lenses in an optical pickup having a plurality of light sources, an optical pickup component with a plurality of objective lenses which converge light from the plurality of light sources on an optical information recording medium and a movable part which holds the plurality of objective lenses, an actuator which drives the movable part of the optical pickup component, and a base on which the actuator is arranged and an optical system which introduces light emitted from the plurality of light sources to the plurality of objective lenses is constituted, which are capable of producing an optical pickup with a plurality of objective lenses while tilt is being simply adjusted, the method includes:a first tilt adjustment step of adjusting the tilt of the plurality of objective lenses with respect to the optical information recording medium with the optical pickup component temporarily arranged at a predetermined position on the base; anda tilt detecting step of detecting the tilt of the plurality of objective lenses after the first tilt adjustment step has been completed.

摘要翻译： 一种调整具有多个光源的光学拾取器中的物镜倾斜的方法，具有将来自多个光源的光会聚在光学信息记录介质上的多个物镜的光学拾取器部件和可移动部件， 保持多个物镜，驱动光学拾取部件的可移动部分的致动器和布置有致动器的基座以及将从多个光源发射的光引入到多个物镜的光学系统是 构成，其能够在简单地调整倾斜的情况下产生具有多个物镜的光学拾取器，该方法包括：第一倾斜调节步骤，相对于光学信息记录介质调节多个物镜的倾斜度 其中所述光学拾取器部件临时布置在所述基座上的预定位置; 以及倾斜检测步骤，在第一倾斜调节步骤完成之后检测多个物镜的倾斜。

公开(公告)号：US20090147659A1

公开(公告)日：2009-06-11

申请号：US12064360

申请日：2006-08-24

申请人： Yoshiaki Komma ,  Kanji Wakabayashi ,  Kousei Sano ,  Toshiyasu Tanaka ,  Keiichi Matsuzaki ,  Hidenori Wada

发明人： Yoshiaki Komma ,  Kanji Wakabayashi ,  Kousei Sano ,  Toshiyasu Tanaka ,  Keiichi Matsuzaki ,  Hidenori Wada

IPC分类号： G11B7/00 ,  G02B7/02

CPC分类号： G11B7/1374 ,  G11B2007/0006

摘要： An objective lens unit according to the present invention includes a first objective lens 41; and a first lens holder 2 for supporting the first objective lens 41. The first lens holder 2 is formed of a material which transmits ultraviolet. Preferably, the first lens holder 2 includes a through-hole, having first and second openings 2a and 2b, through which light incident on the first objective lens 41 passes, and an opening limiting section 3 provided along a circumferential direction of the through-hole and projecting toward a central axis of the through-hole. The first objective lens 41 is supported so as to block the first opening 2b. The opening limiting section 3 guides light incident thereon from the second opening 2a in a direction away from an optical axis of the first objective lens.

摘要翻译： 根据本发明的物镜单元包括第一物镜41; 以及用于支撑第一物镜41的第一透镜保持器2.第一透镜保持器2由透射紫外线的材料形成。 优选地，第一透镜保持件2包括通孔，具有入射在第一物镜41上的光通过的第一和第二开口2a和2b以及沿着通孔的周向设置的开口限制部3 并朝向通孔的中心轴突出。 第一物镜41被支撑以阻挡第一开口2b。 开口限制部3在远离第一物镜的光轴的方向上引导从第二开口2a入射的光。

公开(公告)号：US20080112303A1

公开(公告)日：2008-05-15

申请号：US12002380

申请日：2007-12-17

申请人： Hidenori Wada ,  Tetsuo Saimi ,  Daisuke Ogata ,  Seiji Nishino ,  Hiroaki Yamamoto ,  Shin-ichi Kadowaki ,  Yoshiaki Komma

发明人： Hidenori Wada ,  Tetsuo Saimi ,  Daisuke Ogata ,  Seiji Nishino ,  Hiroaki Yamamoto ,  Shin-ichi Kadowaki ,  Yoshiaki Komma

IPC分类号： G11B7/00

CPC分类号： G11B7/13925 ,  G02F2203/18 ,  G11B7/0948 ,  G11B7/1369 ,  G11B7/13927 ,  G11B2007/0013

摘要： The invention presents an optical element with which an optical head can be configured, in which there is little deterioration of the correctional effect when the objective lens shifts, as well as an optical head and an optical recording/reproducing apparatus using such an optical element. The invention also presents a novel optical recording/reproducing apparatus and optical recording/reproducing method. The optical element, includes a first voltage application electrode 13, a first opposing electrode 17 arranged in opposition to the first voltage application electrode 13, and a first phase changing layer 15 arranged between the first voltage application electrode 13 and the first opposing electrode 17. By changing a voltage between the first voltage application electrode 13 and the first opposing electrode 17, a phase that converts plane waves into spherical waves is imparted on light that is incident on the first phase changing layer 15.

摘要翻译： 本发明提供了一种光学元件，通过该光学元件可以配置光学头，其中当物镜移动时，校正效果几乎没有劣化，以及使用这种光学元件的光学头和光学记录/再现装置。 本发明还提出了一种新颖的光学记录/再现装置和光学记录/再现方法。 光学元件包括第一电压施加电极13，与第一电压施加电极13相对布置的第一相对电极17和布置在第一施加电极13和第一相对电极17之间的第一相变层15。 通过改变第一电压施加电极13和第一相对电极17之间的电压，将入射到第一相变层15上的光转换成球面波的相位。