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1. 发明申请

US20100208567A1 Objective Lens and Optical Pickup Apparatus 审中-公开
标题翻译：物镜和光学拾取器
公开(公告)号：US20100208567A1
公开(公告)日：2010-08-19
申请号：US12680192
申请日：2008-10-02
申请人： Kentarou Nakamura , Tohru Kimura
发明人： Kentarou Nakamura , Tohru Kimura
IPC分类号： G11B7/135
CPC分类号： G11B7/1374 , G02B3/04 , G02B27/0025 , G11B7/1392 , G11B2007/0006
摘要： An objective lens for an optical pickup apparatus is disclosed that can record and/or reproduce information compatibly for different optical discs with stability regardless of an environmental temperature change, in spite of its simple structure, and provides an optical pickup apparatus employing the objective lens. The objective lens includes: an optical surface which at least includes a central area, a peripheral area, and a most peripheral area. The objective lens is a single lens formed of plastic. The central area includes a first optical path difference providing structure. The peripheral area includes a second optical path difference providing structure. The objective lens further includes an optical path difference providing structure for correcting a temperature characteristic, where the optical path difference providing structure corrects an aberration caused by a temperature change of the objective lens.
摘要翻译：公开了一种用于光学拾取装置的物镜，尽管其结构简单，它可以稳定地记录和/或再现不同光盘的信息，而不管环境温度变化如何，并提供采用该物镜的光学拾取装置。物镜包括：光学表面，其至少包括中心区域，周边区域和最外围区域。物镜是由塑料制成的单透镜。中心区域包括第一光程差提供结构。外围区域包括第二光程差提供结构。物镜还包括用于校正温度特性的光程差提供结构，其中光程差提供结构校正由物镜的温度变化引起的像差。

2. 发明申请

US20100067356A1 OPTICAL ELEMENT FOR OPTICAL PICKUP DEVICE, OPTICAL PICKUP DEVICE AND METHOD FOR ASSEMBLING OPTICAL PICKUP DEVICE 审中-公开
标题翻译：用于光学拾取器件的光学元件，光学拾取器件和用于组装光学拾取器件的方法
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。

3. 发明申请

US20100124159A1 Optical Pickup Device and Objective Optical Element 有权
标题翻译：光学拾取装置和物镜光学元件
公开(公告)号：US20100124159A1
公开(公告)日：2010-05-20
申请号：US12597160
申请日：2008-04-08
申请人： Kentarou Nakamura , Tohru Kimura
发明人： Kentarou Nakamura , Tohru Kimura
IPC分类号： G11B7/00
CPC分类号： G11B7/1353 , G11B7/1374 , G11B7/13922 , G11B2007/0006
摘要： There are provided an optical pickup device which can satisfactorily record and/or reproduce information on different kinds of optical information recording medium in spite of compactness, and an objective optical element used for the optical pickup device. The optical functional surface of the objective optical element includes at least two areas of a central area including an optical axis and a peripheral area surrounding the central area. An optical path difference providing structure in the central area is a structure obtained by overlapping a first central basic structure and a second central basic structure which are in a shape of ring-shaped zones divided by step differences, with each other. An optical path difference providing structure in the peripheral area is a structure obtained by overlapping a first peripheral basic structure and a second peripheral basic structure which are in a shape of ring-shaped zones divided by step differences, with each other.
摘要翻译：提供了一种即使紧凑的，也可以令人满意地记录和/或再现不同种类的光学信息记录介质上的信息的光学拾取装置和用于光学拾取装置的物镜光学元件。物镜光学元件的光学功能表面包括中心区域的至少两个区域，包括光轴和围绕中心区域的周边区域。中心区域的光程差提供结构是通过将由阶梯差除以环状区域的形状的第一中心基础结构和第二中心基础结构重叠而得到的结构。周边区域中的光程差提供结构是通过将由阶梯差除以环形区域的形状的第一周边基础结构和第二周边基础结构彼此重叠而获得的结构。

4. 发明授权

US08477587B2 Optical pickup device and objective optical element 有权
标题翻译：光学拾取装置和物镜光学元件
公开(公告)号：US08477587B2
公开(公告)日：2013-07-02
申请号：US12597160
申请日：2008-04-08
申请人： Kentarou Nakamura , Tohru Kimura
发明人： Kentarou Nakamura , Tohru Kimura
IPC分类号： G11B7/135
CPC分类号： G11B7/1353 , G11B7/1374 , G11B7/13922 , G11B2007/0006
摘要： There are provided an optical pickup device which can satisfactorily record and/or reproduce information on different kinds of optical information recording medium in spite of compactness, and an objective optical element used for the optical pickup device. The optical functional surface of the objective optical element includes at least two areas of a central area including an optical axis and a peripheral area surrounding the central area. An optical path difference providing structure in the central area is a structure obtained by overlapping a first central basic structure and a second central basic structure which are in a shape of ring-shaped zones divided by step differences, with each other. An optical path difference providing structure in the peripheral area is a structure obtained by overlapping a first peripheral basic structure and a second peripheral basic structure which are in a shape of ring-shaped zones divided by step differences, with each other.
摘要翻译：提供了一种即使紧凑的，也可以令人满意地记录和/或再现不同种类的光学信息记录介质上的信息的光学拾取装置和用于光学拾取装置的物镜光学元件。物镜光学元件的光学功能表面包括中心区域的至少两个区域，包括光轴和围绕中心区域的周边区域。中心区域的光程差提供结构是通过将由阶梯差除以环状区域的形状的第一中心基础结构和第二中心基础结构重叠而得到的结构。周边区域中的光程差提供结构是通过将由阶梯差除以环形区域的形状的第一周边基础结构和第二周边基础结构彼此重叠而获得的结构。

5. 发明授权

US08776631B2 Transmission shift fork 有权
标题翻译：变速叉车
公开(公告)号：US08776631B2
公开(公告)日：2014-07-15
申请号：US12968447
申请日：2010-12-15
申请人： Masatoshi Hada , Hitoshi Oya , Kentarou Nakamura , Hiroyuki Momota , Takao Mori
发明人： Masatoshi Hada , Hitoshi Oya , Kentarou Nakamura , Hiroyuki Momota , Takao Mori
IPC分类号： F16H63/32 , F16H57/04
CPC分类号： F16H63/32 , F16H57/0432 , F16H57/0468 , Y10T74/2014 , Y10T74/20177 , Y10T74/20183
摘要： A transmission shift fork engages with a coupling sleeve of a synchronizer and shifting the coupling sleeve. The transmission shift fork includes a first part, second part, and at least one fin. The first part is arranged to movably mount the transmission shift fork in a shift fork movement direction. The second part includes a coupling sleeve facing surface, an outwardly facing surface, and a pair of shift-direction facing surfaces. The coupling sleeve facing surface includes at least one coupling sleeve engagement part arranged to engage with an engaging groove formed on an external circumferential surface of the coupling sleeve. The outwardly facing surface includes an oil catch disposed in a position with respect to the coupling sleeve engagement part such that the oil catch captures lubricating oil and supplies to the coupling sleeve engagement part. The fin projects from inside an oil receiving recess defined by the oil catch.
摘要翻译：变速器换档拨叉与同步器的联接套接合并且移动联接套筒。换档拨叉包括第一部分，第二部分和至少一个散热片。第一部分被布置成以变速叉移动方向可移动地安装变速器换档拨叉。第二部分包括面向连接套的表面，面向外的表面和一对换向方向的表面。联接套筒相对表面包括至少一个联接套接合部分，其布置成与形成在联接套筒的外周表面上的接合槽接合。向外的表面包括设置在相对于联接套筒接合部分的位置的油捕集器，使得油捕获器捕获润滑油并将其供应到联接套筒接合部分。从石油捕捞中定义的油接收槽内部的翅片项目。

6. 发明授权

US08339923B2 Objective optical element and optical pickup device 有权
标题翻译：物镜光学元件和光学拾取装置
公开(公告)号：US08339923B2
公开(公告)日：2012-12-25
申请号：US13139697
申请日：2009-12-15
申请人： Kentarou Nakamura
发明人： Kentarou Nakamura
IPC分类号： G11B7/00
CPC分类号： G11B7/1353 , G02B5/18 , G02B5/1895 , G02B13/0025 , G02B13/0055 , G02B27/30 , G11B7/1367 , G11B7/1374 , G11B7/13922 , G11B2007/0006
摘要： Provided is an objective optical element which can appropriately correct degradation from spherical aberration upon fluctuation of a light source wavelength while maintaining light use efficiency, just by changing the magnification of the objective optical element, and which can record/reproduce information to/from different optical discs. Also provided is an optical pickup device using the objective optical element. When a light flux having two different wavelengths λ11, λ12 (wherein λ11 ΔSA3>ΔSA5>0 (1).
摘要翻译：提供了一种物镜光学元件，其可以通过改变物镜光学元件的倍率来适当地校正光源波长的波动时的球面像差的降低，同时保持光的使用效率，并且可以从/不同的光学元件记录/再现信息光盘还提供了使用物镜光学元件的光学拾取装置。当波长λ1范围内具有两个不同波长λ11，λ12（其中λ11<λ12和λ12-λ11= 5nm）的光束被引入物镜光学元件以测量波前像差时，以下三阶和五阶获得单位为λrms的球面像差：SA3（λ11），SA5（λ11），SA3（λ12），SA5（λ12）。如果＆Dgr; SA3 = | SA3（λ12）-SA3（λ11）|，＆Dgr; SA5 = | SA5（λ12）-SA5（λ11）|，则满足以下表达式：0.18>＆Dgr; SA3>＆Dgr; SA5> 0 （1）。

7. 发明申请

US20100284262A1 OPTICAL PICKUP APPARATUS, OBJECTIVE OPTICAL ELEMENT AND OPTICAL INFORMATION RECORDING REPRODUCING APPARATUS 有权
标题翻译：光学拾取装置，目标光学元件和光学信息记录再现装置
公开(公告)号：US20100284262A1
公开(公告)日：2010-11-11
申请号：US12840273
申请日：2010-07-20
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。

8. 发明申请

US20100260031A1 Objective Lens for Optical Pickup Apparatus, and Optical Pickup Apparatus 有权
标题翻译：光学拾取装置的物镜和光学拾取装置
公开(公告)号：US20100260031A1
公开(公告)日：2010-10-14
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。

9. 发明申请

US20080013415A1 Optical pickup apparatus, objective optical element and optical information recording and/or reproducing apparatus 失效
公开(公告)号：US20080013415A1
公开(公告)日：2008-01-17
申请号：US11822980
申请日：2007-07-11
申请人： Eiji Nomura , Kentarou Nakamura
发明人： Eiji Nomura , Kentarou Nakamura
IPC分类号： G11B7/00
CPC分类号： G11B7/1374 , G11B7/1353 , G11B7/13922 , G11B2007/0006
摘要： An optical pickup apparatus comprises: 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 comprises an optical surface comprising a central area and a peripheral area. The central area comprises a first optical path difference providing structure, and the peripheral area comprises a second optical path difference providing structure. The objective optical element converges the third light flux which passes through the central area of on the third optical disk. The objective optical element converges the first and second light fluxes which pass through the peripheral area on the first optical disk. Each of the first and second optical path difference providing structures comprises a predetermined basic structure.

10. 发明申请

US20080013412A1 Optical pickup apparatus, objective optical element and optical information recording and/or reproducing apparatus 失效
公开(公告)号：US20080013412A1
公开(公告)日：2008-01-17
申请号：US11822981
申请日：2007-07-11
申请人： Eiji Nomura , Kentarou Nakamura
发明人： Eiji Nomura , Kentarou Nakamura
IPC分类号： G11B5/09
CPC分类号： G11B7/1374 , G11B7/1353 , G11B7/13922 , G11B2007/0006
摘要： An optical pickup apparatus comprises: a first light source; a second light source; a third light source; and an objective optical element. The objective optical element comprises at least two areas comprising first and second optical path difference providing structures. A third light flux from the third light source passing the first optical path difference providing structure forms first and second best focuses. The third light flux passing the objective optical element forms a spot comprising a central spot portion; an intermediate spot portion; and a peripheral spot portion. The central spot portion is used for recording and/or reproducing information for a third optical disk, and the intermediate and peripheral spot portions are not used for recording and/or reproducing information for the third optical disk. The peripheral spot portion is formed on the third optical disk by the third light flux through the second optical path difference providing structure.

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