公开(公告)号：US08169878B2

公开(公告)日：2012-05-01

申请号：US13089983

申请日：2011-04-19

申请人： Kentarou Nakamura ,  Kohei Ota ,  Nobuyoshi Mori ,  Eiji Nomura

发明人： Kentarou Nakamura ,  Kohei Ota ,  Nobuyoshi Mori ,  Eiji Nomura

IPC分类号： G11B7/00

CPC分类号： G11B7/1374 ,  G02B3/08 ,  G02B27/42 ,  G02B27/4238 ,  G02B27/4283 ,  G11B7/123 ,  G11B7/1275 ,  G11B7/1353 ,  G11B7/13922 ,  G11B2007/0006

摘要： An optical pickup apparatus according to the present invention includes: a first light source for emitting a first light flux; a second light source for emitting a second light flux; a third light source for emitting a third light flux; and an objective optical element. The objective optical element has an optical surface including at least two areas provided with optical path difference providing structures. The objective optical element converges the first to third light fluxes each passing through the predetermined areas on the objective optical element onto respective information recording surfaces of the first to third optical disks. The optical pickup apparatus provides a wavelength dependency of a spherical aberration so as to correct a change in a spherical aberration due to a refractive index change with a temperature change of the objective optical element.

摘要翻译： 根据本发明的光拾取装置包括：用于发射第一光通量的第一光源; 用于发射第二光通量的第二光源; 用于发射第三光通量的第三光源; 和物镜光学元件。 物镜光学元件具有包括设置有光程差提供结构的至少两个区域的光学表面。 物镜光学元件将通过物镜光学元件上的预定区域的第一至第三光束会聚到第一至第三光盘的相应信息记录表面上。 光学拾取装置提供球面像差的波长依赖性，以便校正由于物镜光学元件的温度变化引起的折射率变化引起的球面像差的变化。

公开(公告)号：US08125873B2

公开(公告)日：2012-02-28

申请号：US12680194

申请日：2008-09-26

申请人： Yuki Ono ,  Kohei Ota ,  Kentarou Nakamura

发明人： Yuki Ono ,  Kohei Ota ,  Kentarou Nakamura

IPC分类号： G11B7/00

CPC分类号： G02B3/08 ,  G02B3/04 ,  G11B7/1374

摘要： Provided is an objective lens for an optical pickup apparatus. The objective lens collects diffracted light generated by an optical path difference giving structure onto the information recording surface of an optical information recording medium as a spot and suppresses fluctuation of diffraction efficiency due to a change of using wavelength. The optical pickup apparatus using such objective lens is also provided. The total diffraction efficiency can be improved by adjusting a wavelength at which the diffraction efficiencies of a plurality of basic structures forming the optical path difference giving structure in the objective lens are maximum, in accordance with a basic structure.

摘要翻译： 提供了一种用于光学拾取装置的物镜。 物镜将由光程差赋予结构产生的衍射光聚集到光信息记录介质的信息记录表面上作为点，并且抑制由于使用波长的变化引起的衍射效率的波动。 还提供了使用这种物镜的光学拾取装置。 根据基本结构，可以通过调整形成物镜中的光程差赋予结构的多个基本结构的衍射效率最大的波长来提高总的衍射效率。

公开(公告)号：US08111602B2

公开(公告)日：2012-02-07

申请号：US12999856

申请日：2009-06-01

申请人： Kyu Takada ,  Kiyono Tateyama ,  Kentarou Nakamura

发明人： Kyu Takada ,  Kiyono Tateyama ,  Kentarou Nakamura

IPC分类号： G11B7/00

CPC分类号： G11B7/1353 ,  G02B3/04 ,  G02B5/1895 ,  G11B7/1374 ,  G11B7/13922

摘要： Provided are an optical pickup apparatus and an objective lens which can record and/or reproduce information for discs with different recording densities and can realize simplification of the structure of themselves and reducing cost. When the expression (1) is satisfied, step differences of a step structure can be further reduced than those in the case that d1=λ1(n−1) holds, and fine grooves corresponding to a steps structure, formed on an optical-surface transfer surface of a mold for molding the objective lens become shallow, to be easily processed. In addition, the moldability is enhanced because the material of the objective lens easily enters the inner portion of the grooves. Further, a fluctuation of a diffraction efficiency caused when wavelength of a light flux changes or temperature changes is reduced so that information can be recorded and/or reduced stably.

摘要翻译： 提供一种能够记录和/或再现具有不同记录密度的盘的信息的光学拾取装置和物镜，并且可以实现其自身的结构的简化并降低成本。 当满足表达式（1）时，阶梯结构的步长差可以比在d1 =λ1（n-1）成立的情况下的阶梯差更进一步降低，并且形成在光学表面上的与阶梯结构相对应的细槽 用于模制物镜的模具的转印表面变浅，易于加工。 此外，由于物镜的材料容易进入槽的内部，所以成型性得到提高。 此外，当光束波长变化或温度变化时引起的衍射效率的波动减小，从而可以稳定地记录和/或降低信息。

公开(公告)号：US08023388B2

公开(公告)日：2011-09-20

申请号：US12773560

申请日：2010-05-04

申请人： Kentarou Nakamura

发明人： Kentarou Nakamura

IPC分类号： G11B7/00

CPC分类号： G11B7/13922 ,  G11B7/1353 ,  G11B7/1374 ,  G11B7/1376 ,  G11B7/13925 ,  G11B2007/0006

摘要： An objective lens includes a first optical path difference providing structure in which a first basic structure and a second basic structure are overlapped together, and a second optical path difference providing structure in which a third basic structure, a fourth basic structure, and a fifth basic structure are overlapped together. The first and third basic structures emit diffracted light fluxes with the same diffraction order having the maximum light amount. The second and fourth basic structures emit diffracted light fluxes with the same diffraction order having the maximum light amount. The fifth basic structure emits 0th-order diffracted light fluxes with the maximum light amount, for the first light flux, emits 0th-order diffracted light fluxes with the maximum light amount, for the second light flux, and emits Gth-order diffracted light fluxes with the maximum light amount, for the third light flux, where G is an integer excluding zero.

摘要翻译： 物镜包括第一基本结构和第二基本结构重叠在一起的第一光程差提供结构和第三光程差提供结构，其中第三基本结构，第四基本结构和第五基本结构 结构重叠在一起。 第一和第三基本结构发射具有最大光量的相同衍射级的衍射光束。 第二和第四基本结构发射具有最大光量的相同衍射级的衍射光束。 第五基本结构发射具有最大光量的0级衍射光束，对于第一光束，对于第二光束发射具有最大光量的0级衍射光束，并且发射G级衍射光束 对于第三光束，具有最大光量，其中G是不包括零的整数。

公开(公告)号：US20110194396A1

公开(公告)日：2011-08-11

申请号：US13089983

申请日：2011-04-19

申请人： Kentarou NAKAMURA ,  Kohei Ota ,  Nobuyoshi Mori ,  Eiji Nomura

发明人： Kentarou NAKAMURA ,  Kohei Ota ,  Nobuyoshi Mori ,  Eiji Nomura

IPC分类号： G11B7/135

CPC分类号： G11B7/1374 ,  G02B3/08 ,  G02B27/42 ,  G02B27/4238 ,  G02B27/4283 ,  G11B7/123 ,  G11B7/1275 ,  G11B7/1353 ,  G11B7/13922 ,  G11B2007/0006

摘要： An optical pickup apparatus according to the present invention includes: a first light source for emitting a first light flux; a second light source for emitting a second light flux; a third light source for emitting a third light flux; and an objective optical element. The objective optical element has an optical surface including at least two areas provided with optical path difference providing structures. The objective optical element converges the first to third light fluxes each passing through the predetermined areas on the objective optical element onto respective information recording surfaces of the first to third optical disks. The optical pickup apparatus provides a wavelength dependency of a spherical aberration so as to correct a change in a spherical aberration due to a refractive index change with a temperature change of the objective optical element.

摘要翻译： 根据本发明的光拾取装置包括：用于发射第一光通量的第一光源; 用于发射第二光通量的第二光源; 用于发射第三光通量的第三光源; 和物镜光学元件。 物镜光学元件具有包括设置有光程差提供结构的至少两个区域的光学表面。 物镜光学元件将通过物镜光学元件上的预定区域的第一至第三光束会聚到第一至第三光盘的相应信息记录表面上。 光学拾取装置提供球面像差的波长依赖性，以便校正由于物镜光学元件的温度变化引起的折射率变化引起的球面像差的变化。

公开(公告)号：US20110122755A1

公开(公告)日：2011-05-26

申请号：US13056256

申请日：2009-07-21

申请人： Kiyono Tateyama ,  Kentarou Nakamura

发明人： Kiyono Tateyama ,  Kentarou Nakamura

IPC分类号： G11B7/135 ,  G02B13/18 ,  G02B5/18

CPC分类号： G11B7/1275 ,  G11B7/1353 ,  G11B7/1374 ,  G11B7/139 ,  G11B7/13922 ,  G11B2007/0006

摘要： Provided are an objective lens with enhanced transmittance and an optical pickup apparatus which can record and/or reproduce information properly for three kinds of discs with different recording densities, even if a single lens is used as the objective lens. When all the expressions (1) to (3) are satisfied, excellent aberration characteristics can be obtained for the three kinds of discs: −0.02≦m1≦0.02 (1); 0≦(WD1−WD2)≦1.57 m2+0.123 or 1.57 m2+0.24≦(WD1−WD2)≦0.7 (2); and 0≦(WD1−WD3)≦1.79 m3+0.333 or 1.66 m3+0.508≦(WD1−WD3)≦0.7 (3).

摘要翻译： 提供了具有增强的透射率的物镜和可以适当地记录和/或再现具有不同记录密度的三种盘的信息的光学拾取装置，即使使用单个透镜作为物镜。 当满足所有表达式（1）至（3）时，可以获得三种光盘的优异的像差特性：-0.02＆nlE; m1＆nlE; 0.02（1）; 0＆nlE;（WD1-WD2）＆nlE; 1.57m2 + 0.123或1.57m2 + 0.24＆nlE;（WD1-WD2）＆nlE; 0.7（2）; 和0＆nlE;（WD1-WD3）＆nlE; 1.79m3 + 0.333或1.66m3 + 0.508＆nlE;（WD1-WD3）＆N1; 0.7（3）。

公开(公告)号：US07885167B2

公开(公告)日：2011-02-08

申请号：US11600444

申请日：2006-11-16

申请人： Kentarou Nakamura ,  Eiji Nomura

发明人： Kentarou Nakamura ,  Eiji Nomura

IPC分类号： G11B7/135

CPC分类号： G11B7/1378 ,  G11B7/1275 ,  G11B7/1374 ,  G11B7/13925 ,  G11B2007/0006 ,  G11B2007/13727

摘要： The present invention relates to an objective lens, an objective lens unit and an optical pickup apparatus. The objective lens is provided for an optical pickup apparatus recording or reproducing information by converging a light flux with a wavelength λ1 emitted from a light source onto an information recording surface of an optical information recording medium. The objective lens is formed of: a single lens having at least one aspheric surface. In the objective lens, an effective aperture, a thickness on an optical axis, a focal length, a numerical aperture, and a refractive index satisfy the predetermined conditional expressions. The objective lens unit is provided for an optical pickup apparatus and includes an aberration correcting element and the objective lens.

摘要翻译： 本发明涉及物镜，物镜单元和光拾取装置。 物镜设置用于通过将从光源发射的波长λ1的光束会聚在光学信息记录介质的信息记录表面上来记录或再现信息的光学拾取装置。 物镜由具有至少一个非球面的单透镜形成。 在物镜中，有效孔径，光轴上的厚度，焦距，数值孔径和折射率满足预定的条件表达式。 物镜单元被提供用于光学拾取装置，并且包括像差校正元件和物镜。

公开(公告)号：US20100067356A1

公开(公告)日：2010-03-18

申请号：US12519718

申请日：2007-12-07

申请人： Hideyuki Fujii ,  Kohei Ota ,  Tohru Kimura ,  Kentarou Nakamura

发明人： Hideyuki Fujii ,  Kohei Ota ,  Tohru Kimura ,  Kentarou Nakamura

IPC分类号： G11B7/135

CPC分类号： G11B7/1374 ,  G11B7/08582 ,  G11B7/0925 ,  G11B7/13922 ,  G11B7/22 ,  G11B2007/0006

摘要： An optical element for an optical pickup device which can record and/or reproduce information interchangeably with an optical disc while correcting coma satisfactorily, and a compact optical pickup device employing that optical element and exhibiting excellent energy saving. In the optical element for an optical pickup device where a first objective lens portion and a second objective lens portion are formed integrally, one of the first objective lens portion and the second objective lens portion satisfies a relation |HCM|/|TCM| 0.3. The HCM represents the third-order angle of view coma sensitivity in the first objective lens portion or the second objective lens portion, and the TMC represents the third-order inclination angle coma sensitivity in the first objective lens portion or the second objective lens portion.

摘要翻译： 一种用于光学拾取装置的光学元件，其可以在令人满意地校正彗差的同时，与光盘互换地记录和/或再现信息，以及采用该光学元件的紧凑型光学拾取装置并且显示出优异的节能。 在第一物镜部分和第二物镜部分整体形成的用于光学拾取装置的光学元件中，第一物镜部分和第二物镜部分之一满足关系| HCM | / | TCM | <0.3 而满足关系| HCM | / | TCM |> 0.3。 HCM表示第一物镜部分或第二物镜部分的三阶视角彗形像差，TMC表示第一物镜部分或第二物镜部分中的三阶角度彗形像差。

公开(公告)号：US20100003323A1

公开(公告)日：2010-01-07

申请号：US12439252

申请日：2007-08-29

申请人： Shouji Ooya ,  Satoru Toda ,  Tetsuo Hiratou ,  Kentarou Nakamura

发明人： Shouji Ooya ,  Satoru Toda ,  Tetsuo Hiratou ,  Kentarou Nakamura

IPC分类号： A61K31/337 ,  A61K9/00 ,  A61K31/436 ,  A61P35/00 ,  A61P7/02 ,  A61P29/00 ,  A61P27/14

CPC分类号： A61K9/0014 ,  A61K9/7007 ,  A61K31/337 ,  A61K31/436

摘要： It is an object of the present invention to solve the problem of precipitation of a poorly water-soluble compound in a hydrophilic matrix upon inclusion of the poorly water-soluble compound in the hydrophilic matrix. The present invention provides a composition wherein a poorly water-soluble compound is contained in a hydrophilic matrix in a finely-dispersed state.

摘要翻译： 本发明的目的是解决在亲水基质中包含难溶于水的化合物时，难溶于水的化合物在亲水性基质中的析出问题。 本发明提供了在微细分散状态下亲水性基质中含有难溶于水的化合物的组合物。

公开(公告)号：US07300629B2

公开(公告)日：2007-11-27

申请号：US10400548

申请日：2003-03-28

申请人： Yoshihide Iwaki ,  Kentarou Nakamura ,  Hideaki Tanaka ,  Yoshiki Sakaino ,  Kaoru Terashima

发明人： Yoshihide Iwaki ,  Kentarou Nakamura ,  Hideaki Tanaka ,  Yoshiki Sakaino ,  Kaoru Terashima

IPC分类号： G01N30/00

CPC分类号： G01N33/491

摘要： A blood testing unit is provided with a closed vessel having an outer vessel body and an inner vessel body, and a reagent layer is accommodated in the closed vessel. Reagents which react with a blood sample are supported on the reagent layer. The closed vessel is comprised such that at least either one of the outer vessel body and the inner vessel body is provided with an aperture, through which air is capable of being introduced from the exterior to the interior of the one vessel body, and the one vessel body is provided with a sealing member for closing the aperture.

摘要翻译： 血液检查单元设置有具有外容器主体和内容器主体的封闭容器，并且将试剂层容纳在密闭容器中。 与血液样品反应的试剂被支撑在试剂层上。 封闭容器包括使得外部容器主体和内部容器主体中的至少一个设置有孔，空气能够从外部引入到一个容器主体的内部，并且一个 容器体设置有用于封闭孔的密封构件。