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11. 发明授权

US07876660B2 Optical pickup apparatus 失效
标题翻译：光拾取装置
公开(公告)号：US07876660B2
公开(公告)日：2011-01-25
申请号：US11781735
申请日：2007-07-23
申请人： Fumio Nagai
发明人： Fumio Nagai
IPC分类号： G11B7/00
CPC分类号： G11B7/1381 , G11B7/1353 , G11B7/1365 , G11B7/1374 , G11B7/1392 , G11B7/1395 , G11B2007/0006
摘要： An optical pickup apparatus includes: a first light source for emitting a first light flux; a light-converging optical system including an objective lens and a diffractive structure. When the first light flux from an optical information recording medium enters into the diffractive structure, the diffractive structure emits a main light flux and a secondary light flux. The optical pickup apparatus further includes: a first optical element including a first optical area and a second optical area; a second optical element including a third optical area and a fourth optical area; a light-converging element for converging the main light flux at a position between the first optical element and second optical element; a polarization splitting optical member for splitting the main light flux and the secondary light flux each emitted from the first optical element and second optical element; and a photodetector for receiving the main light flux.
摘要翻译：一种光学拾取装置包括：用于发射第一光通量的第一光源; 包括物镜和衍射结构的聚光光学系统。当来自光学信息记录介质的第一光束进入衍射结构时，衍射结构发射主光束和二次光束。光拾取装置还包括：第一光学元件，包括第一光学区域和第二光学区域; 第二光学元件，包括第三光学区域和第四光学区域; 聚光元件，用于使主光束在第一光学元件和第二光学元件之间的位置处会聚; 用于分离从第一光学元件和第二光学元件发射的主光束和二次光束的偏振分束光学部件; 以及用于接收主光束的光电检测器。

12. 发明申请

US20110002123A1 LIGHT SOURCE UNIT 有权
标题翻译：光源单元
公开(公告)号：US20110002123A1
公开(公告)日：2011-01-06
申请号：US12593138
申请日：2008-02-28
申请人： Yuichi Atarashi , Fumio Nagai
发明人： Yuichi Atarashi , Fumio Nagai
IPC分类号： F21V19/02 , F21V11/00 , F21V7/07
CPC分类号： G02B6/42 , G02B6/4214 , H01S5/005 , H01S5/0092 , H01S5/0228
摘要： A light source unit relating to the present invention includes a light source element; an optical-waveguide-formed element in which an optical waveguide is formed; a prism for turning back a light flux emitted from the light source and guiding the light flux toward an incident end of the optical waveguide; and a coupling optical system formed on the prism or provided as a separated body from the prism, for coupling the light flux emitted from the light source onto the optical waveguide.
摘要翻译：涉及本发明的光源单元包括光源元件; 形成光波导的光波导形成元件; 用于回转从光源发射的光束并将光束引导到光波导的入射端的棱镜; 以及耦合光学系统，其形成在所述棱镜上，或者设置为与所述棱镜分离的主体，用于将从所述光源发射的光束耦合到所述光波导上。

13. 发明授权

US07668421B2 Optical coupling lens and light source 失效
标题翻译：光耦合透镜和光源
公开(公告)号：US07668421B2
公开(公告)日：2010-02-23
申请号：US12028153
申请日：2008-02-08
申请人： Fumio Nagai , Nobuyoshi Mori
发明人： Fumio Nagai , Nobuyoshi Mori
IPC分类号： G03H1/22
CPC分类号： G02B6/4206 , G02B6/4234
摘要： The present invention relates to an optical coupling lens and light source module. An optical coupling lens is provided for converging a light flux emitted from a light source to an entrance aperture. The optical coupling lens satisfies a predetermined condition according to a third-order astigmatisms coefficient of the optical coupling lens. A light source module includes: a light source; an optical waveguide; and an optical unit including one or more of an optical coupling lens for converging a light flux emitted from the light source onto the optical waveguide. At least one optical coupling lens satisfies predetermined condition according to a third-order astigmatism coefficient of the optical coupling lens.
摘要翻译：本发明涉及光耦合透镜和光源模块。提供了一种光耦合透镜，用于将从光源发射的光束会聚到入射孔。光耦合透镜根据光耦合透镜的三阶像散系数满足预定条件。光源模块包括：光源; 光波导; 以及光学单元，其包括用于将从光源发射的光束会聚到光波导上的光耦合透镜中的一个或多个。至少一个光耦合透镜根据光耦合透镜的三阶像散系数满足预定条件。

14. 发明授权

US07511880B2 Semiconductor light source module 有权
标题翻译：半导体光源模块
公开(公告)号：US07511880B2
公开(公告)日：2009-03-31
申请号：US11545470
申请日：2006-10-11
申请人： Nobuyoshi Mori , Katsuya Yagi , Yuichi Atarashi , Fumio Nagai , David A. Loeber , Jacques Gollier , E. Alan Dowdell
发明人： Nobuyoshi Mori , Katsuya Yagi , Yuichi Atarashi , Fumio Nagai , David A. Loeber , Jacques Gollier , E. Alan Dowdell
IPC分类号： G02F1/35 , G02F2/02 , G02F1/01
CPC分类号： G02F1/37 , G02B6/4225 , G02B7/005 , G02B7/02 , G02B7/1805 , G02F2001/3503 , G02F2001/3505 , H01S5/0683 , H02N2/025 , H02N2/028
摘要： The present invention provides a semiconductor light source module including: a semiconductor light source for emitting a light flux with a predefined wavelength; a SHG element for converting an incident light flux entering onto an incident end surface of the SHG element into an outgoing light flux having a different wavelength from the incident light flux; a light converging optical system for converging a light flux emitted from the semiconductor light source onto the incident end surface of the SHG element; a light receiving element for receiving a part of a light flux emitted from the SHG element; and a drive device for driving an optical element in the light converging optical system based on a light flux received by the light receiving element.
摘要翻译：本发明提供一种半导体光源模块，包括：用于发射具有预定波长的光通量的半导体光源; 用于将入射到所述SHG元件的入射端面的入射光束转换成具有与入射光束不同的波长的出射光束的SHG元件; 聚光光学系统，用于将从半导体光源发射的光束会聚到SHG元件的入射端面上; 用于接收从SHG元件发射的光束的一部分的光接收元件; 以及驱动装置，用于基于由光接收元件接收的光通量来驱动聚光光学系统中的光学元件。

15. 发明申请

US20090010141A1 Optical pickup apparatus and objective lens 审中-公开
标题翻译：光学拾取装置和物镜
公开(公告)号：US20090010141A1
公开(公告)日：2009-01-08
申请号：US12217448
申请日：2008-07-03
申请人： Fumio Nagai
发明人： Fumio Nagai
IPC分类号： G11B7/00
CPC分类号： G11B7/1263 , G11B7/00456 , G11B7/0062 , G11B7/0938 , G11B7/24038 , G11B2007/0013
摘要： An optical pickup apparatus is provided for recording and/or reproducing information on an optical disc including at least one reference layer and at least one recording layer in which information can be recorded at recording positions each located at a different distance from an optical disc surface. The optical pickup apparatus includes: a light source; a relay lens system for emitting a converged light flux; an objective lens arranged at a predetermined distance from the reference layer, for converging the converged light flux onto one of the recording positions; and a photodetector. The relay lens system changes a convergence angle of the converged light flux to enter the objective lens by moving in a direction of an optical axis thereof so as to select a recording position where information is recorded and/or reproduced.
摘要翻译：提供一种用于在包括至少一个参考层和至少一个记录层的光盘上记录和/或再现信息的光学拾取装置，其中可以在每个位于与光盘表面不同的距离处的记录位置记录信息。光拾取装置包括：光源; 用于发射会聚光束的中继透镜系统; 物镜，其布置在距参考层预定距离处，用于将会聚的光束会聚到一个记录位置上; 和光电检测器。中继透镜系统通过沿其光轴的方向移动来改变会聚光束的会聚角以进入物镜，以选择记录和/或再现信息的记录位置。

16. 发明授权

US07397616B2 Optical communication module and optical element for optical communication module 有权
标题翻译：光通信模块和光通信模块光元件
公开(公告)号：US07397616B2
公开(公告)日：2008-07-08
申请号：US11401333
申请日：2006-04-11
申请人： Fumio Nagai , Nobuyoshi Mori , Yuichi Atarashi
发明人： Fumio Nagai , Nobuyoshi Mori , Yuichi Atarashi
IPC分类号： G02B3/08 , G02B6/34 , G02B13/18
CPC分类号： G02B6/4246 , G02B6/29308 , G02B6/29311 , G02B6/4206
摘要： An optical communication module includes a first light-receiving element with a receiving surface in which a light flux with a wavelength λ1 emitted from an end surface of an optical fiber enters; a light-emitting element for emitting a light flux with a wavelength λ2; and a first optical element arranged between the first light-receiving element and the light-emitting element, and the end surface of the optical fiber. The first optical element includes a first optical surface with a positive refractive power and a second optical surface having a diffractive structure. One of the first optical surface and the second optical surface is divided into at least a first optical functional surface and a second optical functional surface through a step difference.
摘要翻译：光通信模块包括具有接收表面的第一光接收元件，其中从光纤的端表面发射的具有波长λ1的光束进入; 用于发射波长λ2的光通量的发光元件; 以及布置在第一光接收元件和发光元件之间的第一光学元件以及光纤的端面。第一光学元件包括具有正屈光力的第一光学表面和具有衍射结构的第二光学表面。第一光学表面和第二光学表面中的一个通过台阶差分成至少第一光学功能表面和第二光学功能表面。

17. 发明申请

US20120069348A1 Optical Connector and Optical Tomograph 有权
标题翻译：光学连接器和光学断层扫描仪
公开(公告)号：US20120069348A1
公开(公告)日：2012-03-22
申请号：US13322149
申请日：2010-03-05
申请人： Junichi Jono , Katsumi Fujiwara , Fumio Nagai
发明人： Junichi Jono , Katsumi Fujiwara , Fumio Nagai
IPC分类号： G01B9/02 , G02B6/38
CPC分类号： G02B6/382 , A61B5/0059 , G02B6/3604 , G02B6/3809 , G02B6/3825
摘要： Provided are an optical connector and an optical tomographic imaging apparatus, by which no noise occurs and a high quality image without a distortion can be obtained. In the optical connector, optical fibers are inserted into a lumen of a tube from opposite ends thereof; one of the optical fibers is fixed to the tube and the other optical fiber is held so as to be rotatable relative to the tube; an end of one of the optical fibers is separated from an end of the other optical fiber to form a gap therebetween in the lumen; a connecting section which connects the exterior space of the tube and the gap is formed; and a liquid or fluid made of a material which can transmit light is held in the exterior space, the gap, and the connecting section. Consequently, a significant pressure variation in matching liquid does not occur if the distance between the facing optical fibers changes
摘要翻译：提供了一种光学连接器和光学断层摄影成像装置，其不产生噪声，并且可以获得没有变形的高质量图像。在光连接器中，光纤从其相对端插入到管的内腔中; 光纤中的一个被固定到管，另一个光纤被保持成可相对于管旋转; 一根光纤的一端与另一根光纤的一端分离，在内腔之间形成间隙; 形成连接管的外部空间和间隙的连接部，并且由能够透过光的材料制成的液体或流体被保持在外部空间，间隙和连接部分中。因此，如果相对的光纤之间的距离发生变化，则不会发生匹配液体中显着的压力变化

18. 发明申请

US20110032725A1 Optical Module and Optical Unit 审中-公开
标题翻译：光模块和光学单元
公开(公告)号：US20110032725A1
公开(公告)日：2011-02-10
申请号：US12988191
申请日：2009-03-17
申请人： Fumio Nagai
发明人： Fumio Nagai
IPC分类号： G02B27/18 , H01S3/00
CPC分类号： G02B6/4207 , H01S5/0064 , H01S5/02284
摘要： A semiconductor laser used as a light source of an optical module is susceptible to the return light from the lens surface. The problem has been conventionally solved by offsetting the optical axis of a lens and the optical axis of a semiconductor laser, but a high-precision and costly process for adjusting the positioning is required. An optical module and an optical unit, wherein the oscillation state of a semiconductor laser can be limited in the range of normal characteristics at a low cost, are provided by proposing a lens which eliminates the need for adjusting the positioning because there is little return light. As a first lens on which the light exiting a semiconductor laser impinges at first, a lens having an optical surface whose convex surface faces toward the semiconductor laser side is employed so that the light is diverged thus reducing the intensity of light returning to the semiconductor laser.
摘要翻译：用作光学模块的光源的半导体激光器对来自透镜表面的返回光敏感。通常通过偏移透镜的光轴和半导体激光器的光轴来解决该问题，但是需要用于调整定位的高精度和昂贵的工艺。一种光学模块和光学单元，其中半导体激光器的振荡状态可以以低成本限制在正常特性的范围内，通过提出一种不需要调整定位的透镜来提供，因为几乎没有返回光。作为首先从半导体激光器射出的光入射的第一透镜，采用具有凸面朝向半导体激光侧的光学面的透镜，使得光发散，从而降低返回到半导体激光器的光的强度。

19. 发明申请

US20080025189A1 Optical Pickup Apparatus 失效
标题翻译：光学拾取装置
公开(公告)号：US20080025189A1
公开(公告)日：2008-01-31
申请号：US11781735
申请日：2007-07-23
申请人： Fumio Nagai
发明人： Fumio Nagai
IPC分类号： G11B7/135
CPC分类号： G11B7/1381 , G11B7/1353 , G11B7/1365 , G11B7/1374 , G11B7/1392 , G11B7/1395 , G11B2007/0006
摘要： An optical pickup apparatus includes: a first light source for emitting a first light flux; a light-converging optical system including an objective lens and a diffractive structure. When the first light flux from an optical information recording medium enters into the diffractive structure, the diffractive structure emits a main light flux and a secondary light flux. The optical pickup apparatus further includes: a first optical element including a first optical area and a second optical area; a second optical element including a third optical area and a fourth optical area; a light-converging element for converging the main light flux at a position between the first optical element and second optical element; a polarization splitting optical member for splitting the main light flux and the secondary light flux each emitted from the first optical element and second optical element; and a photodetector for receiving the main light flux.
摘要翻译：一种光学拾取装置包括：用于发射第一光通量的第一光源; 包括物镜和衍射结构的聚光光学系统。当来自光学信息记录介质的第一光束进入衍射结构时，衍射结构发射主光束和二次光束。光拾取装置还包括：第一光学元件，包括第一光学区域和第二光学区域; 第二光学元件，包括第三光学区域和第四光学区域; 聚光元件，用于使主光束在第一光学元件和第二光学元件之间的位置处会聚; 用于分离从第一光学元件和第二光学元件发射的主光束和二次光束的偏振分束光学部件; 以及用于接收主光束的光电检测器。

20. 发明申请

US20080025188A1 Optical Pickup Apparatus 失效
标题翻译：光学拾取装置
公开(公告)号：US20080025188A1
公开(公告)日：2008-01-31
申请号：US11781711
申请日：2007-07-23
申请人： Fumio Nagai
发明人： Fumio Nagai
IPC分类号： G11B7/00
CPC分类号： G11B7/1275 , G11B7/1367 , G11B2007/0006 , G11B2007/0013
摘要： The present invention provides an optical pickup apparatus to for recording and/or reproducing information on an optical information recording medium including multilayered information recording surfaces. The optical pickup apparatus includes: a light source; an objective lens; a first optical element including a first optical area and a second optical area; a second optical element including a third optical area and a fourth optical area. The optical pickup apparatus further includes a light-converging element for receiving a main light flux from one information recording surface and a secondary light flux from another information recording surface and converging the main light flux at a position between the first optical element and the second optical element. The optical pickup apparatus further includes a polarization splitting optical member for splitting the main light flux and the secondary light flux; and a photodetector for receiving the main light flux.
摘要翻译：本发明提供了一种用于在包括多层信息记录表面的光学信息记录介质上记录和/或再现信息的光学拾取装置。光拾取装置包括：光源; 物镜; 第一光学元件，包括第一光学区域和第二光学区域; 第二光学元件，包括第三光学区域和第四光学区域。光拾取装置还包括一个聚光元件，用于从一个信息记录表面接收主光束和来自另一个信息记录表面的二次光束，并将主光束会聚在第一光学元件和第二光学元件之间的位置元件。光拾取装置还包括用于分离主光束和次光束的偏振分束光学部件; 以及用于接收主光束的光电检测器。

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